Tektronix 7854 Instruction Manual Download Page 506

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Summary of Contents for 7854

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Page 3: ...LATO R S 2 37 VERTICA L PICKOF F AMPLI FIER 2 38 PICKOF F AMPLIFIER 2 38 VOLTAG E CURRENT R EG ULATO R 2 38 PAG E VERTICA L AMPLIFIER 2 38 DELAY LINE 2 38 AUXILIARY INPUT AMPLIFI ER 2 39 HIG H FR EQ U...

Page 4: ...2 78 ADD RESS BU FFERS 2 78 READ O NLY MEMO RY 2 78 ADDRE SS BU S BUFF ER 2 78 MEMORY 2 78 R OM CONTROL 2 79 FP LA 2 80 PAGE DATA BU S BUFFER 2 80 R ANDOM ACCESS MEM ORY 2 80 MEMO RY 2 80 ADDRE SS BUF...

Page 5: ...3 27 S EM ICO N DUCTORS 3 27 INTERCONNECTI N G PI NS 3 32 PUSHBUTTON SWITCHES 3 33 GRATIC ULE LIG HT BULBS 3 33 POWER TRAN SFORMER 3 33 ADJUSTMENT AFTER REPAIR 3 33 SECTIO N 4 CALIBRATIO N U SI NG TH...

Page 6: ...by the Vertical Channel Switch 2 36 2 28 U150 internal circuitry representation 2 39 2 29 t relationships for the Auto Focus C hannel Switch 2 44 2 30 Detailed block diagram of the Converter Rectifie...

Page 7: ...relationships 4 33 4 2 Typical display when checking Phase relationships 4 69 5 1 Location of Option identification tags 5 5 1 1 Power Cord Color Conductor Identificatio n 1 2 1 2 Power Cord And Plug...

Page 8: ...AFETY UMMARY...

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Page 10: ...vefo rms to 400 mega h ertz equ ivalent ti me bandwidth The processor can be operated from either keyboard front panel meas u reme nt keyboard or detacha ble Waveform Calculato r keyboard or remotely...

Page 11: ...ions incl udes detailed ci rcuit sc hematics locations of assem bled boards with in th e instrument voltage and waveform information circu it board com ponent locators and locations of adjustments to...

Page 12: ...115 volt or 230 volt n ominal line voltage operation To select the correct nominal line voltage first change the power cord and pl ug to match the power source receptacle if necessa ry Then use small...

Page 13: ...if major portions of th e processor are working properly The self test seq uence o utlined below begins when power is applied to the 7854 When power is applied t he followi n g i nd icato r s will li...

Page 14: ...H orizontal Scale F actor Unit Set to S all waveform memories Constant Registers Set to 0 TTL Outp ut Set HIG H RSV Control Flags Set 0 OPERATING P OSITIO N bail type sta nd mou nted on the bottom of...

Page 15: ...kage the instrument as follows 1 Obtain corrugated cardboa rd ca rton with 375 pound test strength for the Mai nfra me o r 200 pound test stre ngth for the Waveform Calculato r and having inside d ime...

Page 16: ...may be applied to the Vertical Amplifier from the Display D and Amplifier circuit alon g with alph anumeric readout signals to produce t he requ ired vertical deflection for display of stored wavefor...

Page 17: ...Figure 2 1 Block Diagram 2 2...

Page 18: ...Figure 2 1 Block Diagram continued 2 3...

Page 19: ...the step analog plug in data representing vertical deflection factors horizontal sweep rate etc and encodes it into d igital format This d igitial information is later processed and results in crt dis...

Page 20: ...t he Diag rams and Circ u it Board Illustrations section s hows the i nter conn ections between major circu its withi n the 7854 MODE SWITCH AND CALIBRATOR The Mode Switch circuit imp lements the fron...

Page 21: ...pposite state of the input small circle at the input or output of symbol indicates that the LO state is significant Absence of the circle indicates that the HI state is significant NOR INVERTER Negati...

Page 22: ...Figure 2 2 Mode Switch Calibrator block diagram 2 7...

Page 23: ...produ ce the 4 volt 0 4 volt and 40 millivolt Cali brator output voltages The accuracy of the Calibrato r is set by the 0 4 V DC adjustment R 25 Both the 4 V and 0 4 V cali brator push button switches...

Page 24: ...Fig ure 2 3 Logic Diag ram of the Vertical Channel Switch Logic on the Main Interface Input output table of the Vertical Channel Switch logic on the Main Interface 2 9...

Page 25: ...2 10 Figure 2 4 Detailed block diagram of the Mainframe Logic circuit...

Page 26: ...NAL X COMPENSATION INHIBIT HO R IZONTA L COMPENSATION INHIBIT HO R IZONTAL HOLDO FF MOD E HOLDO FF MOD E DELAY MODE CONTROL MAINFRAME LOGIC schematic diagram of the Mainframe Logic circuit is given on...

Page 27: ...R IZON TAL 2 12 ALT MODE HORIZ COMPENSATION INHIBIT 4 HORIZONTAL X COMPENSATION INHIBIT 5 HORIZONTAL 1 MAIN FRAME CHANNEL SWITCH SIGNAL DISPLAY D ELAY MODE CONTROL Sweep Lockout MODE bot h units must...

Page 28: ...lse is produced at the end of each sweep The time base must be i n independent nondelayed mode Theory of Operation 7854 287 108 3 Alt or Chop Mode When t he H OR IZONTAL MODE switch is set to ALT or...

Page 29: ...LAYS WITH VERTICA L UNIT IN COMPARTMEN T WITH VERTICA L UN IT IN COMP ARTME NT NO OUTPUT PUL SE LO AT OUTPUT POSITIVE GOING PULSE WHERE BOTH AND HOLDOFF ARE RE QUIRE D TO BE Ell HI AT E ITHER I NPUT P...

Page 30: ...the output However p in 7 goes LO during vertical chopped bla nking and both pins 6 and 7 go LO du ring horizontal ch opped bla nking or du ri ng digitized display Th is blocks the o utput current an...

Page 31: ...GATE HO R IZON TA L CH O PP ED R163 BLA NK I N G UM F O F F AX ISO F F _ _ RE ADO U T BL A NK I N G SI MPL I F I E D DIAG R A M OF Z AXIS LOGIC HI MAX VO L TAG E OR CURREN T HAS NO EFFE CT LO MIN VO L...

Page 32: ...iagra m and table of the input output conditions of the Axis Logic stage HOR IZO NTAL BI NARY The Horizontal Binary stage develops the mainf rame ch ann el switch signal Display to determine wh ich ho...

Page 33: ...E REPETITIO N RAT E ONE HALF HO R IZONTA L CHOPPE D BLA NKING RATE REPETITION RAT E ONE HALF ALTERNATE PUL SE RATE OUTPU T F igu re 2 12 Logic diagram for Horizontal Binary stage Table of input output...

Page 34: ...th e i nverse of the Disp lay command level at pin 8 Q49 generates the Display Command level Also notice th e line connecte d to pin 4 of the Vertical B inary IC U52 The level at pin 4 is generated by...

Page 35: ...RATE REPETITION RATE ONE HALF DISPLAY RAT E HAS NO EFFECT IN TH IS CASE 1 1 F OUTPU T IS LO PR IOR TO LO IT GO ES Hl AN D VICE VER SA OR DISPLAY RIGHT ALT OR CHOP NON DELAYED MOD E DISPLAY LEFT SWEEP...

Page 36: ...OD E switch set to any position except or PLUG IN BINARY The Plug In Bi nary stage produces the pl ug in Alternate Drive comman d to alternate dual trace plug in units Th e Plug In Binary IC U82 is th...

Page 37: ...UAL TRAC E CHANNEL SWITCH CONTROL 14 U721NPUT OUTPUT PLUG IN BINARY STAGE OUTPUT 6 FOLLOWS DISPLAY R IF ALTERNATE MODE COMMAND IS LO 1 2 DISPLAY RIGHT RATE IF IT IS H1 Figure 2 1 6 A Logic diagram for...

Page 38: ...s o ne half the repetition rate of the signal at pin 6 of U 82 The seq uence of operation when two d ual trace vertical units are i nstalled in t he vertical plug in com partments an d they are bot h...

Page 39: ...8 begi ns to charge through R8 and R9 to start the secon d cycle Figure 2 17 Diagram of clock generator stage idealized waveforms for clock Two outputs are provided from this oscillator Th e Delay Ram...

Page 40: ...ertz for all of the above conditions as determined by the Clock Generator stage F igure 2 18 shows the logic diagram and th e input output combinations for t he Vertical C h opped B lanking stage j Q...

Page 41: ...AY The fu nctions of t he input and output pins for the Chop Counter IC U 22 a re identifie d in Figure 2 20 I dealized waveforms showing the timing relationsh ip between the input and output signals...

Page 42: ...PPED BLANKING PIN 4 VERTICAL CHOPPED BLANKING PIN 4 OF U4320B For t he next th ree Clock pulses the Vert Ch op signal output and Plug In Chop D rive operate in th e normal manner However j ust pr ior...

Page 43: ...n on d iagram 2 provides control levels to t his stage Th is switch provides HI level on only o ne of five output lines to ind icate t he selected vertical mode the remaining lines are LO Notice that...

Page 44: ...biasing Q142 Th is cau ses Q142 to saturate and its collector goes positive to forward bias Q146 Du ring the time the sweep is being displayed the Disp lay command is LO This reverse biases Q141 and...

Page 45: ...he components and portions of the circuitry described Figure 2 23 Logic diagram of Trace Separation stage Table of input output combinations TRIGGER CHANNEL SWITCH TRACE SEPARATION 1195 22 2874 124 Th...

Page 46: ...h ing amplifier Trigger signals from t he LEFT VERT compartment are connected to t he input pins 1 a nd 13 of Figure 2 24 Detailed block diagram of the Trigger Selector circuit U520 T he logic levels...

Page 47: ...E 2 2 In put Output Combinations for Trigger C hannel Switch Display Right Com mand 1 V LO 0 5V Right 5 V LO GN D LO HI LO LO LO LO The Trigger Selector circuit determi nes the source of t he internal...

Page 48: ...signals from t he RIG H 1 VERT p lug in compartment to t h e Trigger Output Amplifier When the TRIGG ER SOUR CE switch is set to VERT MOD E t he Trigger Cha nnel Switc h allows t he Left and R ight T...

Page 49: ...TABLE 2 3 I nput Output Combinations for Trigger Channel Switch L __ ___ __ LO LO LO LO LO selected for optimu m amplifie r bandwidth The output impedance of th is stage is 100 ohms differentially de...

Page 50: ...L Q J J j _ 7 1 J J _ C J Figure 2 26 Vertical Amplifie r detailed block diagram Theo ry of Operation 7854 2 35 Q _ Q Q Q Q Q Ui f LU 0 Q i U1 U J n Ch n cc U D 1 7 J Q L 7 0 U 1rc L...

Page 51: ...al C hannel Selector stage which will be discussed later in th is section SIGNAL AT VER TICA L PICK OFF AMPL IF IER OU TPU T 2 36 OUTP UT VO LTAG E REG ULATOR S Tran sistors Q179 Q186 Q187 Q188 and th...

Page 52: ...69 is cut off and Q70 is cond ucting Th e collecto r of Q69 goes HI approach ing t he 2 8 volts supply voltage The voltage level at pin 10 Th eory of Operation 7854 of U 75 the collecto r of Q70 goes...

Page 53: ...094 develops ch ange in voltage across R91 Th is voltage chan ge tied to pin 6 of U73 is referenced 2 38 VERTICAL PIC KOF AMPLIFIER to the voltage at pin 5 of U73B set by the Center adjustment R80 Si...

Page 54: ...the Vertical Channel Switc h circu it diagram 7 the RO WFM signal provides t he Figure 2 28 U150 internal circuitry representation Theory of Operation 7854 only vertical deflection Th is signal is co...

Page 55: ...ated 0124 turns on wh ich t urns Q125 off Resistor R127 then limits the current for the Output Amplifier When stored waveform or al phanumeric character information is to be displayed the Inhibit comm...

Page 56: ...sation network is an optional feature For i nstru ments wh ich are not equipped with this Th eory of Operation 7854 feature the horizontal signal from the HO R IZ plug in compartment is connected d ir...

Page 57: ...omponents R166 and C166 ma ke up the feedback loop Signals at the bases of Q162 a nd Q161 are amplified a nd inverted and th en pass t h roug h Q169 connected in the common base configuration to drive...

Page 58: ...es Sub h eadi ngs i n the following disc u ssion use t hese stage names to aid in locating an d identifying the components and portion s of t he circuitry discu ssed AXIS AMP LI F I ER The Axis Amplif...

Page 59: ...its in conj unction with the Ve rtical H orizontal Axis and Auto Focus Amplifiers provide all qu iescent potentials and signal information necessary for properly d isplayed crt trace The schematic dia...

Page 60: ...uare wave amplit ude at th eir ju nction Grid Bias adjustment R 65 sets the voltage on t he cathod e of CR64 to establis h the forward b ias level and peak positive level at t he anode of CR 64 The do...

Page 61: ...d through li ne filter FL10 li ne fuse F10 and POWER switch S10 Th e line filter is desig ned to keep powe r li n e inte rference from entering t h e instrument and to keep the approximate 25 kilohert...

Page 62: ...r stage converts the do voltag across C16 and C17 to sine wave current to drive power transformer 1 10 Once the Inverter has been starte d by the Inverter Start network transformer 30 provides feedbac...

Page 63: ...Theo ry of Operation 7854 Figure 2 31 Representation of Inverter stage Idealized wavefo rms of total Inverter current IC C Voltage across CR41 and D Voltage across primaries of T10 and T35 2 48...

Page 64: ...r 35 provi des Inverter phase information and power to U75 The phase information is connected to pins 10 and 11 through C77 and C78 Bridge rectifier CR73 CR74 CR76 and C R75 provides positive and nega...

Page 65: ...8 of U 75 to stop the Inverter POWE R UP LOGIC When th e instrument is first turned on the Power Up Logic stage produces LO at its output pin 6 of U 1 79B for about 2 seconds after wh ich time HI out...

Page 66: ...or ri pple the voltage across divider R 16 R 15 and R 14 decreases also Th is results in less positive level at pi n 2 of U 15 than that establis hed by zener d iode VR 12 at pin 3 of U 15 Th is decre...

Page 67: ...S REGULATOR 028 15 VOLT FEEDBAC K AMPLIF IE R U64A Q68 50 VOLT CURRENT LIMITING Q22 15 VOLT FEEDBAC K AMPLIFI ER 84 088 SEMI REGULATED R 58 y W 54 VOLTS 54 VOLTS 50 V R75 5 VOLT FEEDBAC K AMPLIFIER Q1...

Page 68: ...the 50 VS sense lin e from the 50 VS line The divider ratio of R45 a nd R46 sets the level at p in 2 of U45 at zero volts when the output of this s u pply is correct The protection diod e CR58 limits...

Page 69: ...d and applied to the Keyboard Stop Scan stage diagram 27 Th e Keyboa rd Stop Scan stage mon itors the K DOWN key down level a nd when key in the Keyboard matrix h as been c hecked and found to be pres...

Page 70: ...7854 SYSTE M BUSS ES DATA CO NTROL r _ ci Figure 2 33 Detailed Block Diag ram of the Keyboard system KO K7 KEYBOA R D MATRIX Th eory of Operation 7854 2874 153 2 55 5...

Page 71: ...Theory of Operation 7854 2 56 Figure 2 34 Timing Diagram for the Keyboard System m 00 r D...

Page 72: ...ode data on the Data B us and then reads it The keyboard flag at pin 11 of U210 of t he Keyboa rd Flags stage is then pulsed LO to clear the keyboard interr upt req uest and then returns HI T his allo...

Page 73: ...oes LO Th is forces t he output of U510D to go HI a nd it stays at th is level until the 3 level once agai n goes LO Similarly for the Calculator Keyboard the 3 keycode bit enab les either U520 or U62...

Page 74: ...istor Q222 of the Vertical Strobe stage The outpu t of the delay lin e DL21 1 is applied to th e H orizo ntal Strobe stage and is delayed in order to recreate proper time relationshi ps between ve rti...

Page 75: ...DECOUPLI N G FILTE RS Th e Decoupling Filters stage consists of several Icr filters wh ich isolate current and voltage c hanges on any of the 15 volts supp ly lines from the other supply lines 2 60 D...

Page 76: ...e Bus Control logic stage req uests use of the data address and cont rol busses at t he time data point is sam pled and before it is digitized Req uesting control of t he busses at th is time as oppos...

Page 77: ...e I nternal Acqu ire Mode External Acquire Mode Operation of the Bus Control stage wh en in th e External Acquire Mode differs from the Internal Acquire Mode in that theTACQ acquire interrupt level is...

Page 78: ...its five Theory of Operation 7854 to eig ht b its are set directly from data on the Data Bus and direct one of t he DMA di rect memory access devices under microprocessor control to to particu lar mem...

Page 79: ...320A when clocked by the output of U1 630C of the En d Of Count Detector stage disables t h e clock o u tput of U1 120 by applying Hl to pin 1 of U 1120 Th is HI resu lts as the HI mode word bit appli...

Page 80: ...n 7854 schematic d iagram of the Digitizer Clock circuit is given on diagram 23 in Section 7 Diagrams and Circuit Board Illustrations The schematic is d ivided by gray shaded lines separating the circ...

Page 81: ...It generates the Source Restart p ulse to the Clock Source Select stage 2 66 Th e in puts to U 1910B 2C0 and 2C2 are derived from the Gated Oscillator stage and are HI when t he circu it is not produc...

Page 82: ...tin ues runnin g The next time U 2130 overflows the borrow output clocks U2030A and U 1920B once again Since t he previous clock to U2030A caused its Q output to c h ange states th e LO a pplied to th...

Page 83: ...croprocessor that DMA device requires service 2 68 BU S GR AN T LOGIC Th e B us G rant Logic stage consists of U220 and U230 This stage generates bus grant levels_ to the digitizer B GDIG readout BGRO...

Page 84: ...latch ing the present data at its inputs into the device Th is is the data representing the highest priority bus request and is applied to U220 Since th e RESET and _LDA levels applied to U 100A are...

Page 85: ...mplete sweep h as occurred 2 7 Upon power up the system RESET input level applied to U 1400A goes LO This applies LO level to U 1710A resulting in LO at its output This is applied to the R reset input...

Page 86: ...ssed C R R The Comparator stage consists of U510 0513 Q514 and their associated components It compares the input analog level at pin 2 of U510 to the step analog level generated by the combination of...

Page 87: ...data word from th e Approximation Generator stage and converts t his data to uniq ue analog voltage level Th is is then a pplied to the Comparator stage as the reference level for the n ext sequentia...

Page 88: ...MP ARISO N 11 25 V 75 V 3 0 9375 V 1 125 V 4 5 1 75 V 0 V 1 6 2 CO MPARISON 6 64 pts MINI MUM ALLOWABLE VOLTAGE 1 5 V Theo ry of Operation 7854 9 10 last 8 Figure 2 35 Comparison sequence of Successiv...

Page 89: ...els at node when certain blocks of ci rcu itry are being exercised i n specific manner by the diagnostic package nu merical sig nature is developed When compared to table of known good sign atures pro...

Page 90: ...cessor IC U700 fou r phase clock with specific relations hips must be applied to the clock inputs at pins 8 9 25 and 28 of U700 These clock pulses are developed by U 920 and its associated components...

Page 91: ...oded interr upt 2 76 address as well as the TSTH OLD command and CRUIN level are applied to thei r related microprocessor inputs on 04 of each clock cycle throu g h U 900 as mentione d in the FOLD com...

Page 92: ...etch ing an instr uction from memory It is used only for test purposes in t his instrument Theory of Operation 7854 The Wait command at pin 3 of the microprocesso r IC is an o utput buffered by U1 10C...

Page 93: ...buffers to be disabled by removi ng the ju mper 2 i8 MEMORY READ O NLY MEMORY The Read Only Memory ROM circuit co ntains the stored firmware responsi ble for t h e proper operation of t his i nstrume...

Page 94: ...NG Theory of Operation 7854 Tab le 2 4 illustrates the resulting output enable and memory cycle control levels gene rated by t he ROM Control stage for various input combi nations As you will note thi...

Page 95: ...TRO L Th e Me mory stage is made up of 32 fou r bit 1024 Random Access Memory ICs and provides the actual storage fu nction for data on t he data bus Four and only four of these ICs may be addressed a...

Page 96: ...power is implemented only whe n t he PUP level goes LO VR870 Q163 a nd their associated components comprise voltage sense switch se nsing the voltage at the Ext Battery i np ut If th is input voltage...

Page 97: ...at will be addressed in the following discussion as th e first two are spoken to in the Horizontal Vertical Display a nd Control description Also in any mode li n es 3 14 are accessible via GPIB Press...

Page 98: ...C co m CD c D c 1 m CD UNUSED LOCATIO NS AVAILABLE FOR FUTURE EXPANSION OF READOUT SYSTEM Lt OPERATIO NAL ADDRESS 2DECIMAL POINT CH ARACTER SEE DECIMAL i CHARACTER DESCRIPTION IN TEXT j W 2874 138 8...

Page 99: ...rom the Ch aracter Selection Matr ix Two output lines row and column a re connected from each channel of the plug in unit back to t he Readout Acquire circuitry Data is typically encoded on these outp...

Page 100: ...cc 2i _ zz z 00J C7 n y F F G Theory of Operation 854 0 3 F igu re 2 41 Detaile d B loc k Diag r am of t h e R eadou t Acqu i re syste m 2 85...

Page 101: ...0 microseconds as controlled by rc network R2611 02612 The triangle waveform is clipped a nd amplified by U2510 to form the trapezoi dal output signal at p in 10 The amplitude of this output signal is...

Page 102: ...produced by t he Time Slot Counter stage are conn ected to th e pl ug in unit However time slot 5 6 7 a nd 10 are not used by the plug i n u nit to encode data w hen using the Standard R eadout Forma...

Page 103: ...s th at two zeros should be added to the d isplay 2 88 Table 2 6 Ch annel Address Code Resistor R 120 adds one u nit of col u mn current during time slot 2 and along with one u nit of current from the...

Page 104: ...een Theory of Operatio n 7854 B37 ROW ANALOG DATA TO READOUT SYSTEM CO LUMN ANALOG DATA TO READOUT SYSTEM 37 C1195 33 Fig ure 2 44 Typical encoding scheme for Voltage Sensing plug in unit Coding shown...

Page 105: ...e preceding information gave typical example of encoding data from an amplifier p lug in unit Specific encod ing data and circuitry is shown in the individual plug in unit manuals COLUMN AND R OW DATA...

Page 106: ...y of Operation 7854 C HARACTER E NCODERS The Character En coder stage translates the decimal outp u t information comi ng from the Row and Column Decoders i nto u nique 8 bit data word d efining the e...

Page 107: ...Th e D MA Control Logic circuit respon ds with LO BG R O signal enab ling the buffers stage After the enco ded character data and character position data is read RBR remove bus req uest command is giv...

Page 108: ...ol Logic stage produces the required signals to enable the Theory of Operation 7854 Address Generator circuit diagram 2 2 allowing it to drive the Address Bus and call data from the RAM random access...

Page 109: ...D4 D13 D13 D15 ADD RE SS D E COD E CO N T R O L BUS MPU I N TER F AC E ADD RE SS GE NER ATO R 4 D M A CO N TRO L 3 DATA BU S ACQUIRE D8 D13 D4 D7 DO 133 2 94 Figure 2 46 Waveform Data Flow 10 XL OAD1...

Page 110: ...Z AXIS AMPLI F I ER SCO PE CONTRO L DOTS VERTICA L VECTO R GENER ATO R DOT S U1620 VECTO RS VECTO RS Figu re 2 46 Wavefo rm Data Flow co n tinued R O WFM Y DSYO FF RO WFM X Theory of Operation 7854 R...

Page 111: ...ration 7854 DO D7 D B D15 3 ADDRE SS DECODE CO NTROLBUS MPU INTERFACE ADDRESS GENER ATOR DMA CO NTROL ACQU I RE D4 D7 DO D3 2 96 ASCII CHAR 1 3 F ig ure 2 46 C haracter Data Flow L INE ___ ____ XLOAD1...

Page 112: ...6 S70 Fe Figure 2 468 Ch a racter Data Flow continued Theory of O peration 7 54 HO RIZO NTA L SIG NA L TO CRT 2874 145D 2 97...

Page 113: ...utput of the Adder is then 0010 and the third point is displayed at horizontal coordinate that is an increment of one from the previous point Thus the Latch Counter continues to count by one for each...

Page 114: ...nd the Counter Latch which produ ce t he inputs to the Vertical and Horizontal D Converters T h is sets the correspond ing ve rtical a nd horizontal analog outputs to specific voltages wh ich correspo...

Page 115: ...100 i cc m m 4 0 0004 0 c Q F igure 2 47 7854 Character Set C c m m V c C _ 2 _ _ _ C C m 5 L I L m U c _ 2 U m L _ F a C V C C m L J m C J 0 C m C_ m V 7 m m L t m C 5 U C J 0 J U C m J 3 z m m l 0...

Page 116: ...l character Control characte rs are not displayed but rather affect position Th e different control ch a racters are Line Reset to reset the display to new line Line Feed to move down line Carriage Re...

Page 117: ...address data and control busses BGDSY P109 F _1 ALL Active LO inversion of BGDSY ____ IN aRDS P109 C ALL 22 23 24 DK 8u Request forDisp uy active LQ indicates at OUT Display Control Logic would like...

Page 118: ...CE ALL Disp lay mode bit active HI ind icates that system is in TA BLE 2 7 CONT Signal Line Description Table Inversion of CHRSCAN Character Axis Drive On active LO indicates that current flows to the...

Page 119: ...tive LO 1 of 5 control character lines ind icating t hat the control character has been sca nn ed as much as needed End of Character Readout active LO in dicates t hat the c u rrent character display...

Page 120: ...ntrolle r in d icati ng t hat Bus R equest s ho ul d be remove d System R eset active LO indicates that d isplay circ u itry Ch aracter Readout Intensity Control analog level of 0 V to 1 5 V controls...

Page 121: ...0 V to 15 V controls intensity of waveform points VVa oho m Point Display active LO indicates that a poin t frorn memory has been obtained and point has begun to be displayed When in both stored and s...

Page 122: ...i nformation will be loaded into the 4 L SB of t he horizontal latch on the next XCLK1 Enab les t he 4 LSBs of the horizo ntal latch to increment by 2 on next ELK H orizontal Increme nt Strobe active...

Page 123: ...latched into vertical input latch Z Axis On enable active HI indicates that the digital display may turn on the Z Axis if appropriate hnoo mogah eqz n l phase 1 active HI free running clock frnm mi ro...

Page 124: ...ry of Operation 7854 Pin 16 t he Va F is also tied to the H orizontal Current Summer a nd Amp lifier stage to ch ange th is reference level in the case of c haracter rather t han d igitized waveform d...

Page 125: ...OLTAGES OUTPUT DETERMINING POSITION OF DISPLAYED POINT ON THE CRT 512 HORIZONTAL D A INPUT 1023 DECIMAL 4 V 0 4 V 4 DISPLAY SYSTEM HORIZONTAL OUTPUT _ t J U J cc QQ c_7 i y C Q 66 ECCX F33X F99X 66 OC...

Page 126: ...er th e upper or lower limit has been exceeded Only two vertical deflections a re possible for points o u tside the predetermined limits During display of an alphan umeric character the switc hes wit...

Page 127: ...A ON THE CRT DETAI L CHARACTER CHARACTER SIZE 5 8 USED FO R HORIZONTA L S PACING BETWEEN CHARACTERS USED FOR VERTICA L SPACING BETWEEN LINES Figure 2 49 Display of Character on crt HO R IZON TAL D A I...

Page 128: ...its accompanying ti ming diagram on diagram 34 in Section 7 Diagrams and Circu it Board Illustratio ns Theory of Operation 7854 When eith er the level goes LO i ndicating that analog plug in informati...

Page 129: ...id 2 The acceptors listene rs initialize the active LO NRFD not ready for data level to LO none are ready for data and set th e active LO NDAC data not accepted level to LO none have accepted data 3 T...

Page 130: ...Fig ure 2 50 G P I B Thr ee Wi r e H an d s h a ke state diag ra m Theory of Operation 7854 m m rv 2 115...

Page 131: ...Theory of Operation 7854 2 116 SO URCE NDAC SIG NAL LINE STAYS LOW UN TIL ALL ACCEPTORS HAVE ACCE PTED IT SET Figure 2 51 GPIB H andshake flowchart ACCEPTOR 2874 1 50...

Page 132: ...RFACE Theory of Operation 7854 this instrument is transmitti ng or receiving data over the GPIB by controlling the bi directional buffers to the GPIB The Clock input for the GPIA stage is the 02 pin T...

Page 133: ...After the Q o utput of 2 118 U620B goes HI indicating that the free r unning clock is being tu rned off HI is clocked to U520 s QA output on the risi ng edge of the next 3 MH z 1 clock This is applie...

Page 134: ...Theory of Operation 7854 Note The time between the falling edge of G and the rising edge of U 520 pin 3 the sh ift registe r Q Output may vary a nd thus the overall length of the memory cycle dependin...

Page 135: ...F 12 will blow and the overvoltage will be isolated from th e RAM power line LED DS15 ill u minates to in dicate to t he u ser that th e MEMORY BACK UP POWER 2 120 REAR PANEL CONNECTOR is connected a...

Page 136: ...ntrol Logic Display B us Request from Disp lay to Control Logic D MA circuit ry Readout Bus Request from Readout acquisition to D MA Cont rol Logic BWRD BWRDS EL CLSAR DMAREQ D M E M DSAR DS PRT DTCSC...

Page 137: ...adout J3 35 Readout acquisition Hn izoma force acquisition portion of Display board readout HB 8 Ho izomai readout inhibhf xn fnnm J3 37 Readout acquisition Horizontal pann mode switch to readout port...

Page 138: ...ontrol Logic o output from the MPU board Horizontal and Vertical Channel Switches to control real time display R0M5_ LY Rom Delay control signal from ROM to MPU to extend memory cycle X 0 Sam as XYON...

Page 139: ...from Main Interface to Control Logic Digitize r a nd Display system for reference 50H z Real Time clock from Display system to MPU negative reducing current drive to Q13 This d rastically reduces outp...

Page 140: ...Th is time is determi ned by t he discharge rate of C95 thro u gh R95 a nd R88 Duri ng th is time the s u pply remains off FAULT PR OT E CTIO N Theory of Operation 7854 The Fault Protection circuit co...

Page 141: ...corrective mai ntenance for the 7854 Oscilloscope Mainfr ame VENTIVE MAINTENANCE Preventive maintena n ce w hen performed on regular basis can often for estall instru ment breakdown and may improve in...

Page 142: ...th e cause of overheating is i mportant to prevent recurrence of the d amage SE M ICON DU CTOR CH E CKS Periodic ch ecks of semiconductors are not recommended Th e best ch eck of semiconductor perfor...

Page 143: ...me wi re wou nd resistors The resista nce values of wire wound resistors are usually pr inted on the component body Th e Maintenance 7854 resistance values of composition resistors and metal film resi...

Page 144: ...T SIGN I FICA NT F IG URES 0 CO L O R COD E RESISTOR S CA P ACITORS MULTI PLI ER TO LER AN C E MULTI PL I ER I TO LER AN C E OHMS pF 10 10 OVER 10pF 20 1 Fig ure 3 1 Color code for resistors an d capa...

Page 145: ...E D SIN GLE DUA L I N DEX i I NDEX IN COMMON OUTPUT C I NDEX L METAL CASED TRANSISTORS J I N DEX HIGHEST PIN NUMBER W C PLASTIC POWER L DARLI NGTON j TRANSISTORS TRANSISTOR I N DEX I NDEX IN D EX INTE...

Page 146: ...igital circ u it board su pport e Remove all pl ug in chassis mo unted boards A25 Digitizer A26 Control Logic A27 MPU A28 RAM A29 Display A30 GPIB and A31 ROM f I nstall the Analog Test Card i n the s...

Page 147: ...a nd receptacle Figu re 3 4 Analog Test Board 067 0912 00 intercon nections D IGITAL TROUBLESHOOTING EQUIPMENT Th e following equipment is necessa ry for troubleshooting th e Digital Section of th e...

Page 148: ...allel data transmissions and signatures Figure 3 5 Typical digital test troubleshooting configurations REMOVE 31 R O M BOAR D AN D IN STALL THE 067 0961 DIAGN OSTIC M EM O RY BOAR D Recommended type S...

Page 149: ...RTICAL and HORIZONTAL MODE switches all intensity indicators and all red front pa nel measurement keyboard and Wavefor m Calculator indicators Step 2 Step 3 VER TICA L MODE In dicator Status All lig h...

Page 150: ...in which the trouble is located Many troubles can be found by visible indications such as unsoldered connections loose cable connections broken wires damaged circuit boards and damaged components CHEC...

Page 151: ...open or shorted condition by measuring the resistance between terminals with an oh mmeter on scale having low inter nal so urce current su ch as t h e R 1 k scale The resistance s hou l d be very hig...

Page 152: ...r plug in units Trouble Sympton Recommended Power Su pp ly Troubleshooting TABLE 3 2 Procedure 1 Check line fuse 1 Check line input circu it 2 Check LV rectifier circuit _ _ ___ __ _ 3 Check inverter...

Page 153: ...stance Ohmeter Scale Typical Resistance Reading 5 If any of the resistance readings are significantly lower than that listed remove the electrical co nnections between the mainframe and the power supp...

Page 154: ...it circuit perform the following 1 Discon n ect t h e 7854 from t h e va r iable a u totransformer an d d isc h a rge t he line storage capacitors Fig 3 7 followin g the proced ure given under Access...

Page 155: ...orm the followi ng proced u re 1 Disconnect the 7854 power co rd pl u g from the power source and disch a rge t he line storage capacitors following th e procedu re given under Access to Components in...

Page 156: ...part from sou rce other tha n Tektronix Inc c heck the p arts list for val ue tolera nce rating and description Some pa rts are man ufact ured or 3 16 2 R emove dual d iode C R51 from the A12 Control...

Page 157: ...board in this instrument The following mult layer board assemblies are partic darly susceptable to heat damage 8 11 12 13 14 26 27 28 29 Damage can vol warranty Maintenance 7854 When soldering on circ...

Page 158: ...bly of individu al compone nts or su b assemblies DIS PLAY UN IT KICKSTA ND The Display unit of the 7854 Oscilloscope mainframe is equipped with kickstand to ease access to interior components of the...

Page 159: ...ted i nside the power su pp ly unit for maintenance or repair use the following procedure Figure 3 12 Use of the Display Unit kickstand WARNING Maintena nce 7854 REMOVE SCREW Disconnect the instrument...

Page 160: ...power supply unit man ually discharge the line storage ca pacitors Cl 6 and C17 as follows 1 Remove the protective cover from th e power supply unit followi ng th e preceding procedure 3 2 Figure 3 1...

Page 161: ...th e sh ield guiding the crt anode plug through the h ole in th e crt sh ield Set the crt firmly against the front panel casti ng Check that crt front supports are positioned correctly 5 Replace th e...

Page 162: ...eptables 6 Remove t he board from t h e instrument 3 22 7 To replace the board first plug in all pin connectors th at are not accessible when the board is installed The board ejectors must be in the h...

Page 163: ...by reversing t h e order of removal Match the in dex arrow on the pin connectors to the correspond i ng arrow on t h e board All Main Interface Circuit B oard M aintenance 7854 Remove and replace the...

Page 164: ...e pin connecter 80 from the board 2 Remove th e screw that secures the board to th e spacer post 3 24 3 Remove the 2 screws from the motor retaining strap t h en remove the fan motor and board assembl...

Page 165: ...1981 Maintenance 7854 6 R emove the 5 securing screws and lift the board wit h attached power transistors fro m t he chassis 7 replace the A22 Low Voltage Regulator board first apply thin coat of sil...

Page 166: ...le the board is inserted into the interface con nector Proceed as follows 1 H old t he Follower board between the ends of t he sh im stock wit h t he fold directly in front of the contacts Wit h the s...

Page 167: ...maintenance retu rn th em to th eir origin al sockets Un necessary replace m ent of semiconductors may affect the adjustment of t he i nstrument Wh en semico nd uctors are replaced check t he operatio...

Page 168: ...ure for chassis mounted board removal 2 Unsolder the crt neck pin connectors from the defective IC and solder them to the replacement IC 3 Remove the securing hardware If the code number see Fig 3 16...

Page 169: ...IC and elastomer contact holder are contami nated clean t he contact holder and h ybrid by flush ing or spraying with alcohol and oven dry at 50 C Do not scrub with cotton tipped applicator or simila...

Page 170: ...UCTOR HYBRID SUBS i H A i E HEAT SINK I I I I FLUSH HYPCON STEPPED HYPCON EXPLODED VIEW OF HYPCON CONNECTOR Figure 3 17 Hypcon assembly removal and replacement PLASTIC FRAME ELASTOMER CONTACT HOLDER C...

Page 171: ...r into the frame The contact holder must be evenly seated on all four sides Flush Matc h hybrid flat corner with board receptacle flat corner and place hybrid in receptacle Match pointed mounting ear...

Page 172: ...CU IT BOAR D Circuit Board Pins Figure 3 19 Exploded view of circuit board pin and ferrule Coaxial Ty pe En d Lead Connecto rs C1967 5 Replacement of the coaxial type end lead connectors requi res spe...

Page 173: ...correct replacement in t he holder PUS HBUTTON SW ITC HES The pushbutton switch es used on the 7854 Oscilloscope mainframe are circuit board mou nted F irst remove the associated circuit board follow...

Page 174: ...he switch is removed the contacts may drop free and be damaged or lost Body salts or acids can contaminate the switch contacts Wear cotton gloves to prevent touching the contacts in the switch or on t...

Page 175: ...ng t hat the controls function properly The procedures i n Part and Part are written so that the entire instrume nt o r any major ci rcuit or part of circuit can be checked or adj usted Table 4 1 Cali...

Page 176: ...adj ustment is necessary If no ADJU ST instruction appears in th e same step th e EXAMINE instruction conce rns measu rement limits that do not have relate d adj ustment Measurement limits followi ng...

Page 177: ...selected See 7000 Series Oscilloscope Systems Specification in the Operators Manual At least 100 1 from do to 250 MHz and at least 40 1 from 250 MHz to 475 MHz Permits viewing the lead ing edge of tri...

Page 178: ...li units bratio n Fixture Difference be 1 or less D2 C heck Difference E2 Ch eck Adjust H or i tween Horizon Between Horizontal zontal Amplifier Gain tal C hannels Cha nnels and Reado ut J itter L i n...

Page 179: ...m e and acqui Real Time sition system sine wave amplit u de response should match each other to wit h in 1 2 5 f 100 MHz where 0 _f 5400 MHz f in MHz TABLE 4 2 CONT Performance C heck Summary Part Per...

Page 180: ...7000 Satisfactory operation substantiated at the factory Series Oscilloscope Systems Specification in the Operators Manual shall be same specification limits as given for real time operation Within 1...

Page 181: ...amera fl 2 Len s an d 1 05 O bject Irnage Ratio Internal illumin ated with va ria ble edge 8 div ve rtically by 10 d iv hor izontally 31 11 TABLE 4 2 CO NT Performance Check Summary DIGITIZER CONT Max...

Page 182: ...t Cali panel CALIBRATOR Output Voltage brator Output Voltage switch Load 100 k 40 mV 0 4 V 4 V Load 50 4 mV 40 mV 0 4 V Accuracy Within 1 __ __ Output Current 40 mA available through Does not normally...

Page 183: ...an d installed with for external power to POWER OFF maintain power on RAM thereby providing non volatile memory 6 0 to 6 5 V dc Rear panel bnc 8 Check TTL Signal connector provides O utp ut TTL compat...

Page 184: ...div maximum 1 V u nit of time with in 10 selected by the time base unit time div switch 1 s div maximum Ap proximately 950 Rear panel bnc con nector Derived f rom HO R IZ time base u nit main gate Der...

Page 185: ...put Voltage 15 V maximum Normally does not require customer verification Satisfactory operation substa ntiated at t he factory Into 50 Load 25 mV d iv of vertical deflection with 25 Into 1 MO 0 5 V di...

Page 186: ...Input to reset single sweep fu nction of time base un its i nstalled in and HO R IZ com partments Closure to ground or switch ing from the h igh level to the low level in less th a n 1 ms resets the...

Page 187: ...te Local Capability Comp lete Device Clea r Capability Complete Device Trigger Capability No Controller Capability GP I B INTERFACE Part Adjustment and Performance Check Procedure Title Does not norma...

Page 188: ...ion substa ntiated at the factory Waveform F unc tions Arit hmetic Fu nctions SQRT Accurate to 4 signi LN ficant digits 6 10 VSCL SG N Cursors Func tions H CR D Accurate to 4 signi fica nt digits 6 10...

Page 189: ...0 5 VSC L H SCL Accurate to 4 signi ficant digits 6 10 HSCL Accurate to 4 sign i ficant d igits 6 10 4 H SCL Acc u rate to 4 signi ficant d igits 6 10 5 VSCL Accurate to 4 signi ficant digits 6 10 5 H...

Page 190: ...g key issues command to the processor except in the GPIB Remote mode 25 pin male connector on 56 inch 3 inches cable for connecting the keyboard to the mainframe TABLE 4 2 CONT Performance Check Summa...

Page 191: ...AL FIXTURES S pecial fixtures are used only where t hey facilitate i nstru ment adju stment Th ese fixtures are availa ble from Tektron ix Inc Order by part nu m ber from Tektronix Field Offices or re...

Page 192: ...substituted if lower performance is accep table 6 Plug In Extender Provi des access to Power Supply Voltage Tektronix Part Rigid Calibration plug in connectors Trigger system and 067 0589 00 F ixture...

Page 193: ...le a TEKTRONIX P6053B b TEKTRONIX 6054 Tektronix Part 012 0076 00 18 inches and Tektronix Part 012 0057 01 42 inches Tektronix Part 011 0049 01 Tektronix Part 011 0069 02 Tektronix Part 103 0030 00 Te...

Page 194: ...stment procedure to adjust variable components U sed for power supply and rear panel removal Used to center vertical Amplifier and set Digitizer codes Used to check TTL SIGNAL OUTPUT Used to check TTL...

Page 195: ...he electrical specifications 2 verify that controls function properly an d 3 perform all i nternal adjustments separate R eal Time Fu nctions Checkout Procedure is provided in th e 7854 Operators Manu...

Page 196: ...2 C HEC K EXTE R NAL Z AXIS OPERATION 4 22 NOTE First perform step Al then proceed 17 connector 24 Battery memory backup 14 Coaxial Cable two 42 inch required 11111111 1 Shaded li n es identify Perfor...

Page 197: ...doten GR LLUK K idrpng e CALIBRATOR 4 V pushbutton in B 2 CHECK CAUBRATOR OUTPUT VOLTAGE NOTE First perform step B1 then proceed UT UT S 17 Bnc T connector 22 Jumper v in 23 to ip lead adaptor 24 Batt...

Page 198: ...second time markers are con nected to the test oscilloscope external tr igger input and to the noninverti n g vertical channel of the test oscilloscope use bnc T connector T h e 7854 CALI BRATOR outpu...

Page 199: ...1111 ill Ill 4 111 11111111 i CHECK Test oscillosco pe for 4 divisio n display wit hin 0 04 d ivision Ill 1 1 11 Ill 11111111 1 1 11 Ill Ill IIIINII 1111111111111 11 Cali bration Part 1 7854 Performan...

Page 200: ...II Ill III 6 CHECK GATE OUTPUT if the preceding step was not performed first perform step 1 then proceed 7854 Controls No cha nge in setti ngs GATE OUT connector rear pa nel Test Oscillosco pe Delayi...

Page 201: ...1111 11111111111111 111 111 111 1111 111 111 1 1 111 U 11111111 1 1111111 Cali bration Pa rt 1 7854 Perfo rmance C hec k g Momentarily s hort t h e center pin of t he camera connector on t he crt beze...

Page 202: ...ptor o bservi ng clip adaptor polarity c Press the SWH pushbutton on the WAVEFORM CALCULA TOR keyboard d Momentarily short the u nattac hed end of the resistor to the upper pin of the camera connector...

Page 203: ...ery memory backup 11111111 Shaded lines ide ntify Performance R eq uirement CHEC K 111111 C2 CHEC K VERTICAL SIG N AL OUT DC C ENTERI N G Pe rform the Performance Ch eck Power up Sequ ence NOTE First...

Page 204: ...ICA L MOD E switc h to RIG H T 2874 377 c Set t h e Signal Stan dard izer Amplitu de and Position cont rols for 2 d ivision d isplay in the upper half of the graticule area d Set the VERTICA L MODE sw...

Page 205: ...t two required 10 Low frequency sine wave generator 4 Time base 12 Function Gene rator 5 Signal Standardizer u nit 14 Coaxial Ca ble one 18 inch two 9 Time mark generator 24 Battery me no ry backup 11...

Page 206: ...ines center 8 divisions J pl 1 Will 1 1J111 1 1 1111 1 11 1 III Iilll e 1 CHECK K T hat l each time mar k aligns with vertical graticule line along the center h orizontal graticule line within 0 05 di...

Page 207: ...lations hips CHECK CO MP ENSATIO N OPTION 02 ONLY Calibration Part 7854 Perfo rmance Check if the instrument under calibration does not contain Option 02 omit this step If the preceding step was not p...

Page 208: ...First perform step El then proceed nt Required Numbers correspond to those listed in Table 4 3 Test Equipment 11 High Frequency sine wave generator 14 Coaxial cable one 42 inch requi red 15 50 ohm te...

Page 209: ...1111111 Install 500 terminators on 11 a nd 131 1 con nectors Signal Standardizer Calibration Part 7 54 Performance Check E4 CH ECK VERTICA L CHANN E L ISO LATIO N if the preceding step was not perform...

Page 210: ...111 111111111 1111 11111111111 1 111 11111111111 1 1111 1111111111 1111 111 1 1 111 CHECK Displaye d signal for an amplitude of 0 2 division or less wh ile a dju sting the h igh frequ ency sine wave g...

Page 211: ...G RAT I LLUM As desi red F2 CH ECK VERTICAL SAMPLER OFFSET NOTE First perform step Ff then proceed REV SEP 1981 16 2 Attenuator 24 Battery memory backup S h aded lines identify Pe rformance Requ ireme...

Page 212: ...T compart me nt Press the R IGHT VERTICAL MODE switch f BOTH and 10 Avg pushbuttons in sequence to obtain display of the realtime and digitize d waveforms m Repeat part j for the RIG HT VERT compartme...

Page 213: ...d AQR p ushbuttons in sequ ence to obtain display of t he real time and digitized wavefor ms It may be necessa ry to use t he time base Position control to move transition to graticule center R epeat...

Page 214: ...ontrols for stable display c U se screwdriver to set th e time b ase un it front p anel Swp Cal adj ustmen t for exactly one cycle per 2 horizontal divisions 4 40 d Sequentially press the STO R ED and...

Page 215: ...be issued if the rear panel A UDIBLE ERROR WARNING switch is in the ON position This is normal 2874 362 h g L g d CHECK The character d isplay at th e lower edge of t he crt to ind icate 100 100 RMS m...

Page 216: ...imi nary Set u p Cond itio ns 4 66 2 Ch eck Adj ust H or izontal Amplifier 4 Adjust Ve rtical C hannel Switch Compensations 4 73 5 C h eck Adj ust Vertical Gain 4 74 6 C heck Vertical Low Frequency Li...

Page 217: ...ated Ad justments must be performed at an ambient temperature between 20 and 30 C for specifie d accuracies 1 Check that t h e instrument h as been set for the proper power so u rce and also that suit...

Page 218: ...MODE LEFT VERT TRACE S EPARATION Mi dran ge TRIGGER SO URCE VERT MODE INTENSITY Fu lly counterclockwise HORIZONTAL MODE INTENSITY Fully counterclockwise TRIGGER SOURC E VERT MODE FOCU S Midrange READ...

Page 219: ...source and press the POWER button c Connect the precision do voltmeter DVM between 50 V Sense and Gn d Sense on the Low Voltage R egulator circuit board 22 d EXAMINE The meter reading for 50 volts wi...

Page 220: ...checked using the procedure given under Troubleshooting Techniques in the Maintenance section d Discon nect the line cord from t h e power source e R ei n stall the power unit and reconnect t h e line...

Page 221: ...I LLUM Midrange CO NTROL I LLUM MEDI UM rear panel STO RED INTENSITY F ully cou nterclockwise c connector Screwd river Nylon tu ning tool Low capacitance screwdriver Ph illips head screwdriver Battery...

Page 222: ...IZ and HO R IZ com partments R e install the time base u nit in the H O R IZ compartment and set the H O RIZO NTAL MODE switc h to h Set the test oscilloscope s deflection factor to 1 volt d iv 10 vol...

Page 223: ...orm at the center graticule lines d EXAMINE The test oscilloscope d isplay for optimum square corner and flat top on the d isplayed pulse Aberrations should he less than 3 peak to peak 0 18 d ivision...

Page 224: ...f 40 mV less than that noted in part e Re install t he time base in the HORIZ co mpartment j Set t he HO R IZONTAL M ODE switc h to k Remove the precision do voltmeter leads Set the test oscilloscope...

Page 225: ...ntensifie d portion of t he wavefo rtn Signal Signal Sta ndardizer Standard izer b Set FOCU S control to midrange d Press the POWER button to on Calibration Pa rt 7854 Adjustment and Performa nce Chec...

Page 226: ...arrying hand le EXAMINE The horizontal trace at the top and bottom of the graticule for 0 1 division or less of bowing or tilt ADJUST Geom R143 on the H igh Voltage Board 20 for minimum bowing of the...

Page 227: ...e positive 12 volts g ADJUST If optimum focus of trace occurs below more negative 12 volts compromise the setting of R63 u ntil voltmeter read i ng is 12 volts h Disconnect t h e DVM Calibration Part...

Page 228: ...istor 11111111111111111111111111 1 1 1 1111111111111111111111111111111111111111111111 1111111111111111 S h aded lines i dentify Perfo rmance Req u irement C HECK 1111 1 C1 CALIBR ATO R AN D OUTPUT SIG...

Page 229: ...1 kH z REPETITION RATE AM15 If the preceding step was not performed first perform step C1 then proceed 7854 Controls CALIBRATOR 4 V CALI BRATO R Calibration Part 7854 Adjustment and Performance Check...

Page 230: ...1111 J1111 111 11111Ill 11111ill Ill111111111111111111111 1IIIHIT Hill 111111 d Set the CALIBRATOR select switch to 0 4 V e Set the test oscilloscope deflection factor to 0 1 V divisio n hill I 1 1111...

Page 231: ...rfo rmance Check ff the preceding step was not performed first perform step C1 then proceed 7854 Controls GATE Selector Switch see Test Point and Adjustment Locatio ns C GAT E OUT connector rear panel...

Page 232: ...he camera connecto r on t he c rt bezel to t he botto m pi n of t h e camera con nector usi ng t he jum per wire Hill 1111111 1 111 1111111 1111 l1111 d 1 1111 1111111 1111111 Ill 11111 ill 11111 ill...

Page 233: ...0 volt a nd 0 8 volt 1111 11 11 l 111111111111 11111111 III 1 1 III Ill III I 111111 11 111 1111111111 11111111 1111111111111111 11111111111111 f Remove the 909 resistor and replace it with an 887 re...

Page 234: ...n at the rear of th is manual for any mod ifications which may affect this p rocedure 2 SETUP c s 4 Controls No c hange in settings c See the i HS t i AND US MEN f LOCANONS L foldout page in Section 7...

Page 235: ...AL MODE switch i ADJU ST A DC Center R 586 located on Tr igger Amplifier Board Al 3 for do level with in 1 division 50 millivolts of the ground refere nce level i n the LEFT RIGHT and ADD positions of...

Page 236: ...Set the test oscilloscope for differential operation between the two channels added display mode with one channel inverted e Establish ground reference level for the test oscilloscope by positioning...

Page 237: ...panel Test Oscilloscope Test Equi pment Controls Test Oscilloscope Input Coupli ng Gnd or Off Vertical Deflectio n 1 V div V ertical Mode Channel l Sweep Rate 1 ms div E stablis h ground reference fo...

Page 238: ...he test oscilloscope crt adjust the time base unit trigger level controls as necessary 11111111 1111111 111111111111 19U J1 1 111111111111111111111111111111111111 11111 111 g Set the TR IGGER SO URCE...

Page 239: ...OURCE switches to VERT MODE Calibration Part IF 7854 Adjustment a nd Performance Ch eck t EXAMINE Vary the 7854 time base u n its Trigger Level controls the HORIZ time base unit should be triggere d o...

Page 240: ...ual for any modifications wh ich may affect this procedure c See the S G1 i WUt L C ION foldo ut page in Section 7 Diagrams and Circuit Board Illustrations d Set the 7854 controls as follows POWER swi...

Page 241: ...The horizontal Gai n adju stment R30 s hou ld be set for optim um gain for th is c heck to be valid ADJU ST If necessary compromise t he setting of the horizontal Gain adjustment to meet the req uirem...

Page 242: ...rification procedures for the time base unit in use These are fo und in the time base un its instruction manual in the Performance Check or Calibration sections If these checks are met omit the remain...

Page 243: ...flection of 35 kHz sinewave 11111111 11111111 11111111111 11111111 b CH EC K Crt Lissajous d isplay see figure 4 2 for separation of 0 28 d ivision or less indicates 2 degrees or less phase s hift c R...

Page 244: ...egrees or less phase sh ift 111 11 1 0 11111111111 1111 1111111 111 11111 11111111111111111 1 111111 Ill 11111111 c ADJUST Comp adjustment C832 located on Compensation Board 33 for minim um separation...

Page 245: ...y OFF i n detent G RAT I LLUM As d esired C RT DIS PLAY SCOPE CAUTION c To prevent damage to the Vertical system due to inadvertent shorts it is recommended that non metallic tuning tool he used whene...

Page 246: ...yed t race is wit h i n 0 5 division of trace displacement noted in part k and no more than 0 5 division from graticule center ADJUST Compromise the Vert Ctr adj ustment R105 so t hat the dis playe d...

Page 247: ...mp 2 located on Vertical Am plifier Board Al 8 for mi nim um rolloff and overshoot Turn t he POWER switch to O FF q Unplug the peltola ca ble from J91 on the bottom of the Mother Board and re install...

Page 248: ...gge r ing A uto Ac E xte rn al Signal Standardizer Test Selecto r Switch V ert or Horiz Gain Rep Rate 10 kHz 2874 328 Position the Signal Standardizer display to align th e brig ht trace with the grat...

Page 249: ...142 A18 R 172 A18 R 18 A18C18 A1811_20 If the preceding step was not performed first perform step F1 then proceed 7854 Controls No change in settings Sig nal Time Standardrizer B ase Test Equipment C...

Page 250: ...f adjust ments we re made steps 7 an d 9 of the Digitzer procedure must be performed 4 7 F8 EXAMINE VERTICAL AMPLIFIER BAN DWIDTH If the preceding step was not performed first perform step F1 then pro...

Page 251: ...e output of the low frequency sine wave generator and t he Signal Sta ndardizer amplitude co ntrol for 8 d ivisions of display at 250 MHz f Set the VERTICAL MODE switch to RIGHT 111111 1 i 11111111 g...

Page 252: ...u nit Position control c EXAMINE Crt d isplay for two traces i n the ALT and CHO P positions of the VERTCAL M ODE switch d Set the VERTICAL MODE switch to ADD e EXAMINE Crt d isplay for sin gle t race...

Page 253: ...used with Option 0 when 067 0961 00 Diagnostic Memory Board is not available Equipment Required N umbers correspond to those listed in Table 4 3 Test Eq ui pment Also required is the 067 0961 00 Diagn...

Page 254: ...Diagnostic Memory Board per instructions i n the Mainte nance section of th is manual Reinstall the ROM board in its original position 4 80 GA3 VECTOR OFFSET AND GAIN ADJUSTMENT 29141620 29141621 A29R...

Page 255: ...its original position GA4 WAVEFDRM VECTOR TIMING ADJUSTMENT A29R17OO If the preceding step was not performed first perform Step GA 1 then proceed Calibration Part 11 7854 Adjustment and Performance C...

Page 256: ...ustment R 1106 located on the 29 Display Board to vertically ce nter the c haracter display g EXAMINE The display for the top margin between th e top g raticu le li ne and the top of the fi rst row of...

Page 257: ...ERT MOD E READOUT intensity Mi drange G RAT I L LUM M idra nge e Enter t he following program into t h e 7854 memory using t he remote WAVEFO RM CALCULATO R keyboard 1111111W11111111111 1111111U1111 1...

Page 258: ...four smaller equal rectan gles 7854 Controls G B2 ADJUST DIS PLAY OFFSETS AN D GAINS A29 R 1205 A18R 65 A29R 1300 A18R 81 First perform step GB 1 then proceed FG B2 SETUP CONDITIONS ch ange in setti n...

Page 259: ...thin 0 05 division g ADJUST rh e Vertical Vectors Gain adjustment R 1720 located on the back of the Display Board 29 to ve rtically over lay t he dot and vector displays Calibration Part 11 7554 Adjus...

Page 260: ...s about the gratic u le ce nter h EXAMINE That t he char acter lines are displayed in the top half of the upper graticule divisio n a nd in t he bottom h alf of the lower graticule division i ADJU ST...

Page 261: ...l1i11111111111111111111111 111 11111111111 Shaded lines identify Performance Req u irement CHE CK 1 r1 1 1 r1 1 11 1 1 1 1 1 1 1 1 1 1 r1 1 1 r1 1111 11 111 1 11 111 1 1 J 1 1 1 111 11 1 111 1 11 1 1...

Page 262: ...eadout on the crt ind icates HCRD 5S f EXAMINE The cu rsor sh ou ld align with th e center ver tical gratic u le line with in 0 05 division g AD JU ST Th e Horizontal Offset adj ustment R 1205 located...

Page 263: ...ifier Board 18 to vertically align t he cursors with the graticule lines GC5 ADJUST C HARACTER DISPLAY 29R1100 29111106 29111200 If the preceding step was not performed first perform step GC1 then pro...

Page 264: ...th e MPU board to its original position b Perform the Adj ustment and Performance Check Power Up Sequence R efer to Section 5 Instrument Options and the Change I nformation at the rear of th is manua...

Page 265: ...Turn the POWER switch OFF Remove th e MPU board as per the instru ctions in the Maintena nce section of th is manual and re install the IACQ jumper m Re install the MPU board 3 ADJU ST VERTICAL AN D...

Page 266: ...se the setting of the Center adjustment R45 for optimum centering for both horizontal compartments INTERACTION If R45 is adj usted step 5 must be performed Remove test scope probe from 64 2 on t he Di...

Page 267: ...osition the cursor to mi d screen by pressing the C RS1 pushbutton on th e front panel keyboard r CHE CK The c haracter readout should ind icate vertical displacement from graticule cente r less t han...

Page 268: ...s the STO P HO R IZONTAL M ODE STORED and AQR p ushbuttons i n sequence to obtain display of the digitized waveform Repeat parts j th roug h m for the HO R IZ compartme nt q R e install ju mper 630 to...

Page 269: ...nd co ntinuously digitized display It may be necessa ry to vary the I NT ENSITY and STORED intensity controls to make both traces easily visib le EXAMINE Displayed traces sh ould overlay withi n 0 1 d...

Page 270: ...the displayed waveform j Set th e Signal Standad izer Test selector switch to Vert or Horiz Step and use the Position control to center th e 6 division square wave d isplay on the crt k EXAM Displaye...

Page 271: ...display It may be necessary to va ry th e STO R ED INTensity control to obtain visible display i Press the CRS2 1 p ushbutton on the front pa nel keyboard to obtain cursor d isplay j Press the CRS1 an...

Page 272: ...n controls for 6 d ivision display centered on the graticule The CW leveled indicator should be lit e Set the time base Triggering controls for stable sine wave display f Without changing the output a...

Page 273: ...f further adjustment of the digitize r system is required omit the remainder of this step k Turn POWER switch to O FF Remove the MPU board as per the i nstructions in the Mai ntenance section of th is...

Page 274: ...ld be reset according to the procedure given in the Service Manual for the time base in use If further adjustment of the digitizer system is required omit the remainder of this step If the preceeding...

Page 275: ...n and the sweep Mag switch to X1 0 EXAMINE For 1 cycle every 2 divisions over the center 8 divisions of the display within 0 16 division ADJUST _If necessary compromise the setting of High Frequency a...

Page 276: ...111111 111 111 11111111111111111 Ill Ill11111111111111111 d C HEC K t he character display at the lower edge of th e crt to i ndicate 100 100 RMS measu rements and less than or eq ual to 8 000m the av...

Page 277: ...54 Adju stment and Performance Check c With the All and l1 bnc connectors on the rigid pl ug in extender disconn ected move j umper 630 on the Digitize r Board 25 to its topmost position to i ntercha...

Page 278: ...e rear panel EXTERNAL KEYBOARD connector e Set the 7854 controls as follows POWER switch 0 pushbutton in VERTICAL MOD E LEFT VERT TRACE S EPARATION Midrange TR IGGE R SO URCE VERT MODE INTEN SITY Fu l...

Page 279: ...listed in Section 2 of the Operators Manual OPTION 78 Option 78 subtitutes P11 p hosphor crt for the standar d 31 phosphor crt Section 5 7854 Option OD deletes t he G P IB the Waveform Calculator and...

Page 280: ...es discussion of circu itry Theory of Compensation O peration Option 02 4 Ch eck Checkout procedur e Calibration Compensation Option 02 Only Check Adju st Checkout and adj ustment procedure Compensati...

Page 281: ...description of Option 03 Provides mechan ical parts list a nd an exploded view drawing of Option 03 Incl udes brief description of Option 78 N ote directing calibrators of Option 03 instru ments to Di...

Page 282: ...Option 1S Troubleshooting Equipment 5 Option 1 S Includes brief description of Option 1S Instrument Options Option 2S 2 Signature Mentions that signature tables are Theory of Analysis required for si...

Page 283: ...C1C1 El FIDIJC1 E C0LI E 0C10 C1C lC C C J 7l _J 7 7C7C7f C1 f_JC C J J C JC iCJ C 1 f 1C C CJC J CJ JCIC JC C J C J 7C1C1 C C CJ C C1C1C7 1 1 C CJC_ _ J _ El 0 1C D0El0CJ0 1 C 1 L CJCJf J J C JC7 JC...

Page 284: ...LI ES Rea d Resistor 1234 1 Assembly 23 PARTS ORDERING INFORMATION 23 2_ R1234 Subassembly Circuit num ber number Read Resistor 1234 1 Subassem bly 2 of Assembly 23 Section 6 7854 Only the circuit num...

Page 285: ...RPORATION 580 PLEASANT STREET WATERTOWN 02172 14193 CAL R INC 1601 OLYMPIC BLVD SANTA MONICA CA 90404 14298 AMERI CAN COMPONENTS INC AN INSILCO COMPANY 8TH AVE AT HARRY STREET CONSHOHOCKEN 19428 14433...

Page 286: ...INC SWITCH DIV S MAIN 5 CRYSTAL LAKE IL 60014 77342 INC POTTER AND BRUMFIELD DIV 200 RICHLAND CREEK DRIVE PRINCETON IN 47670 78488 STACKPOLE CARBON CO ST MARYS PA 15857 79727 C W INDUSTRIES 550 DAVIS...

Page 287: ...UT 80009 670 5835 00 16 670 4641 00 CKT BOARD ASSY FAN 80009 670 4641 00 17 670 5833 00 CKT BOARD ASSY HORIZONTAL OUTPUT 80009 670 5833 00 18 670 5832 00 010100 030919 CKT BOARD ASSY VERTICAL OUTPUT 8...

Page 288: ...2CR95 152 0141 02 SEMICOND DEVI CE S ILICON 30V 150MA 01295 IN4152R A2CR96 152 0141 02 SEMICOND DEVI CE SILICON 30V 150MA 01295 1 4152 A2CR97 152 0141 02 SEMICOND DEVI CE SILICON 30V 150MA 01295 IN415...

Page 289: ...6C21501 B A2R17 315 0362 00 RE S FXD CMPSN 3 6K OHM 5 0 25W 01121 CB3625 A2R19 321 0321 07 E S FXD F ILM 21 5K 0 1 0 125W 91637 MFF1816C21501 B 2 22 308 0307 00 RES FXD WW 5K 1 3W 91637 RS2B BSOOOOF A...

Page 290: ...7 5MM 1 CONTACT 80009 263 0035 00 A2S2 263 0035 00 SWITCH ASSY 1 CANCEL 7 5MM 1 CONTACT 80009 263 0035 00 A2S40 263 0013 08 ACTR ASSY PB 3 LATCH I OMM 5 CONT 80009 263 0013 08 A2S109 263 0013 09 ACTR...

Page 291: ...315 0202 00 RES FXD CMPSN 2K OHM 5 0 25W 01121 C B2025 3 13 315 0512 00 RES FXD CMPSN 5 1K OHM 5 0 25W 01121 CB5125 3 131 315 0512 00 RES FXD CMPSN 5 1K OHM 5 0 25W 01121 CB5125 A3R132 315 0512 00 RE...

Page 292: ...CONTACT ELEC BERYLLIUM COPPER 52961 ENG 8000 A4S300 131 2202 00 CONTACT ELEC BERYLLIUM COPPER 52961 ENG 8000 A4S310 131 2202 00 CONTACT ELEC BERYLLIUM COPPER 52961 ENG 8000 A4S320 131 2202 00 CONT CT...

Page 293: ...0 010150 RES FXD CMPS N 4 7K 5 0 125 01121 4725 A5R76 317 0432 00 010151 RES FXD CMPSN 4 3K 5 0 125W 01121 4325 A5R75 S69 311 1839 00 RES VAR NONWIR 5K 20 0 50W W 4 S SW 01121 14 83 A5560 R60 R65 311...

Page 294: ...ICON 30 V 150 A 01295 1 4152 A7CR53 152 0141 02 SEMICOND DEVICE SII ICON 30V 150MA 01295 1N4152R A7CR66 152 0582 00 SEMICOND DEVICE SILICON 20V 3A 80009 152 0582 00 A7CR88 152 0141 02 SEMICOND DEVICE...

Page 295: ...4 315 0272 00 RES FXD CMPSN 2 7K OHM 5 0 25W 01121 C B2725 7 75 315 0184 00 RES FXD CMPSN 180K OHM 5 0 25W 01121 C B 1845 7 76 315 0102 00 RES FXD CMPSN 1K OHM 5 0 25W 01121 CB1025 7 79 315 0271 00 RE...

Page 296: ...TESTED 80009 151 0223 03 A9Q67 151 0223 03 TRANS ISTOR NPN S I PRESTRE SSED TESTED 80009 151 0223 03 9 1 321 1068 01 RES FXD F ILM 50 5 0 5 0 125W 91637 MFF1816G50RSOD A9R2 321 1068 01 RES FXD FILM 50...

Page 297: ...00 6 14 REV OCT 1981 Tektro nix Serial Model No Component No _Part No Eff Dscont N ame Descr iption i9R63 321 0095 00 RES FXD FILM 95 3 1 0 125 A9R65 311 0635 00 RES VAR NONWIR IK 10 0 50W A9R67 321...

Page 298: ...DI O IUF 20 100V 72982 8045 D Z5U104M Al1C132 281 0783 00 CAP FXD CER DI O IUF 20 100 V 72982 8045 D Z5U 104M Al1C133 281 0775 00 CAP FXD CER DI O lUF 20 SOV 72982 8005 D9AABZSU 104M Al1C134 281 0775...

Page 299: ...CB5105 lIR47 315 0510 00 RES FXD CMPSN 51 OHM 5 0 25W 01121 CB5105 11 52 321 0260 00 RES FXD F ILM 4 99K 1 0 125W 91637 MFF1816G49900 F lIR53 321 0260 00 RES FXD FILM 4 99K 1 0 125W 91637 MFF1816G4990...

Page 300: ...lIR162 315 0561 00 RES FXD CMPSN 560 OHM 5 0 25W 01121 CB5615 l 163 321 0231 00 RES XD FILM 2 49K 0 125W 91637 MFF1816G24900 F 11 164 321 0231 00 RES FXD FILM 2 49K 0 125W 91637 MFF1816G24900F A11 R1...

Page 301: ...l00UF 50 10 25V 56289 502D230 A12C144 290 0772 00 CAP FXD ELCTLT 330UF 50 10 25V OOOOL C 25 330 A12C145 290 0770 00 CAP FXD ELCTLT l00UF 50 10 25V 56289 502D230 A 12C152 290 0771 00 CAP FXD ELCTLT 220...

Page 302: ...51 0188 00 TRANSI STOR S ILI CON PNP 04713 SPS6868K A12Q177 151 0188 00 TRANSI STOR SILI CON PNP 04713 SP S6868K 12 52 315 0512 00 RE S FXD CMPSN 5 1K OHM 5 0 25W 01121 CB5125 12 54 315 0753 00 RES FX...

Page 303: ...PSN 1 8K OHM 5 0 25W 01121 CB1825 12 176 315 0203 00 RES FXD CMPSN 20K OHM 5 0 25W 01121 CB2035 12 177 315 0203 00 RES FXD CMPSN 20K OHM 5 0 25W 01121 CB2035 12 179 315 0472 00 RES FXD CMPSN 4 7K OHM...

Page 304: ...MA 01295 1 4152 A13CR526 152 0141 2 SEMICOND DEVICE SILICON 30V 150MA 01295 1N4152R A13CR548 152 0141 02 SEMIC ND DEVICE SILICON 30V 150MA 01295 1 N4152 R A13CR549 152 0141 2 SEMICOND DEVI CE SILICON...

Page 305: ...00 RES FXD CMPSN 150 5 0 25W 01121 CB1515 13 562 321 0022 00 RES FXD FILM 16 5 OHM I 0 125W 91637 MFF 1816G16R50F A13R563 321 0022 00 RES FXD FILM 16 5 OHM I 0 125W 91637 MFF 1816G16R50F 13 565 321 0...

Page 306: ...0 50W 01121 6205 13 647 301 0510 00 RE S FXD CMPSN 51 5 0 50W 01121 5105 A13R648 317 0510 00 RE S FXD CMP SN 51 5 0 125W 01121 5105 A13R663 321 0022 00 RES FXD FILM 16 5 1 0 125W 91637 MFF 1816G16R50F...

Page 307: ...Part No Eff Dscont Name Description__ _____ Mfr Code M fr Part N umber A 13U580 155 0078 10 MICROCIRCUIT LI ML VERTICAL AMPLIFIER 80009 155 0078 10 A 13U620 155 0078 10 MICROCIRCUIT LI ML VERTI CAL AM...

Page 308: ...4C207 290 0778 00 CAP FXD ELCTLT 1 UF 50 10 5OV 54473 C 50 1 A14C208 283 0177 00 CAP FXD CER DI l UF 80 20 25V 56289 273C5 14CR16 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 IN4152R A14CR17 15...

Page 309: ...MPSN 9 1K OHM 5 0 25W 01121 CB 9125 14 12 315 0101 00 RES FXD CMPSN 100 OHM 5 0 25W 01121 CB 1015 14 13 315 0512 00 RES FXD CMPSN 5 1K OHM 5 0 25W 01121 CB 5125 A14R 16 315 0332 00 RES FXD CMPSN 3 3K...

Page 310: ...D CMPSN 3K OHM 5 0 25W 01121 CB3025 A14 R146 315 0332 00 RES FXD CMPSN 3 3K OHM 5 0 25W 01121 CB3325 14 147 321 0237 00 RES FXD FILM 2 87K 1 0 125W 91637 MF 1816G28700F A14 R150 315 0561 00 RES FXD CM...

Page 311: ...00 TERM TEST PO INT BRS CD PL 80009 214 0579 00 14 162 214 0579 00 TERM TEST POINT BRS CD PL 80009 214 0579 00 14 201 214 0579 00 TERM TEST POINT BRS CD PL 80009 214 0579 00 14 202 214 0579 00 TERM TE...

Page 312: ...R9 315 0101 00 RES FXD CMPSN 100 5 0 25W 01121 CB1015 A15 RIl 315 0222 00 RES FXD CMPSN 2 2K 5 0 25W 01121 CB2225 15 12 315 0241 00 RES FXD CMPSN 240 OHM 5 0 25W 01121 CB2415 15 13 315 0101 00 RES FXD...

Page 313: ...N4152R A16CR22 152 0141 02 SEMICOND DEVI CE S ILICON 30V 150MA 01295 1 4152 A16C R23 152 0141 02 SEMICOND DEVICE S ILICON 30V 150MA 01295 IN4152R A16CR24 152 0141 02 SEM1COND DEVICE S ILICON 30V 150MA...

Page 314: ...00 CAP FXD CER DI O O IUF 100 0 250 V 72982 8131N30025UO103 P A17C207 290 0776 00 CAP FXD ELCTLT 22 UF 50 10 IOV 55680 I OULA22V 7 A17CR44 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 1N4152 R...

Page 315: ...43 321 0205 00 ES FXD FI LM 1 33K 1 0 125W 91637 MFF 1816G13300 F 17 44 315 0123 00 RES FXD CMPSN 12K OHM 5 0 25W 01121 CB 1235 17 51 315 0102 00 RES FXD CMPSN IK OHM 5 0 25W 01121 CB 1025 A17R52 315...

Page 316: ...1226G24901F A17R167 303 0332 00 RES FXD CMPSN 3 3K 5 1W 01121 GB3325 A17R169 315 0100 00 RES FXD CMPSN 10 5 0 25 01121 CB1005 17 171 315 0150 00 RES FXD CMPSN 15 5 0 25W 01121 CB1505 17 172 321 0218 0...

Page 317: ...00 CAP FXD CER DI 1 SPF 10 SOV 72982 81OIA058COK159B A18C161 283 0001 00 CAP FXD CER DI O OOSUF 100 0 SOOV 72982 831 559 502 A18C168 283 0348 00 CAP FXD CER DI 0 5PF O 1PF 100V 51642 100 100 508 NOMIN...

Page 318: ...18R31 323 0069 00 RES FXD FILM 51 1 1 0 50W 91637 MFF1226G51 R 10F A18R32 317 0101 00 RES FXD CMPSN 100 5 0 125W 01121 1015 A18R34 317 0360 00 RES FXD CMPSN 36 5 0 125W 01121 3605 A18R41 323 0121 00 R...

Page 319: ...L VALUE SELE CTED 18 139 311 1265 00 010100 030919 RES VAR NONWIR 2K 10 0 50W 32997 3329 L58 202 A18R139 311 1862 00 030920 RES VAR NONWIR 5K 10 0 50W 73138 82 102 1 A18R140 315 0471 00 RES FXD CMPSN...

Page 320: ...t N um ber 18 228 322 0189 00 RES FXD FILM 909 1 0 25W 75042 CEBTO 909OF 18 133 307 0364 00 RES THERMAL 50 5 0 125 15454 DG125500J 18U5 155 0059 00 M ICROCIRCU IT LI ML IGH FREQUENCY AMPL 80009 155 00...

Page 321: ...75 00 CAP FXD CE R DI O IUF 20 50V 72982 8005D9AABZ5UI04M A19C179 281 0775 00 CAP FXD CE R DI O IUF 20 50V 72982 8005D9AABZ5UI04M A19C180 290 0846 00 CAP FXD ELC LT 47UF 10 75 35 WVDC 54473 ECE A35V47...

Page 322: ...0K OHM 5 0 25W 01121 CB 1045 19 36 315 0203 00 RES FXD CMPSN 20K OHM 5 0 25W 01121 CB2035 19 37 311 1232 00 RES VAR NONWIR 50K 20 0 50W 32997 3386 F 704 503 A19R38 315 0753 00 RES FXD CMPSN 75K 5 0 25...

Page 323: ...997 3386F 704 104 19 34 315 0104 00 RES FXD CMPSN IOOK OHM 5 0 25W 01121 CB1045 19 136 315 0203 00 RES FXD CMPSN 20K OHM 5 0 25W 01121 CB2035 A19R 137 311 1232 00 RES VAR NONWIR SOK 20 0 50W 32997 338...

Page 324: ...1 0 125W 91637 FF1816G316 ROF A19R233 315 0102 00 RES FXD CMPSN IK 5 0 25W 01121 CB1025 19 234 315 0100 00 RE S FXD CMPSN 10 OHM 5 0 25W 01121 CB 1005 19 235 315 0100 00 RE S FXD CMPSN 10 OHM 5 0 25W...

Page 325: ...A20C127 283 0000 00 CAP FXD CER DI O OOIUF 100 0 500V 59660 831 519 5 102 A20C143 283 0068 00 CAP FXD C R DI 0 01UF 100 0 500V 56289 19C241 A20C144 283 0068 00 CAP FXD CE R DI O OIUF 100 0 500V 56289...

Page 326: ...NONWIR 20K 10 0 5W 32997 3329W L58 203 A20R66 315 0123 00 RES FXD CMPSN 12K 5 0 25W 01121 CB 1235 20 67 315 0183 03 RES FXD CMPSN 18K 5 0 25W 01121 CB 1835 20 69 315 0226 01 RES FXD CMPSN 22M 5 0 25W...

Page 327: ...l Model No Mfr Component No Part No Bf Dx n Name Description Code Mfr Part Number A2o e1 5z n 6 oo xmuz um z n u L u mo Mxuu7 Axo z a ooo 1 uz u z zz Lz e AzzumA AMPLIFIER 04713 MC1741CU Auo ns 52 u4r...

Page 328: ...PF 200V 59660 374 018 COK0129B A21C180 281 0092 00 CAP VAR CER DI 9 35PF 200V 72982 538 011 D9 35 A21C183 283 0003 00 CAP FXD CER DI O OIUF 80 20 150 V 91418 SP103Z15 I 4R9 A21C186 281 0609 00 CAP FX...

Page 329: ...16GI4701 F A21R42 321 0333 00 RES FXD FILM 28 7K 1 0 125W 91637 MFF1816G28701 F 21 43 321 0333 00 RES FXD FILM 28 7K 0 125W 91637 MFF1816G28701 F A21R44 315 0102 00 RES FXD CMPSN 1K 5 0 25W 01121 CB10...

Page 330: ...0 RES VAR NONWIR 100 10 O SOW 32997 3329 G48 101 21 156 315 0105 00 RES FXD CMPSN IM OHM 5 0 25W 01121 CB1055 21 161 315 0101 00 RES FXD CMPSN 100 OHM 5 0 25W 01121 CB1015 21 162 315 0202 00 RES FXD C...

Page 331: ...0V 150 A 01295 IN4152R A22C R20 152 0141 2 S C D DEVICE SILICON 30V 150MA 01295 4152 A22CR21 152 0141 02 SEMICOND DEVI CE SILICON 30V 150MA 01295 4152 A22CR22 152 0333 00 SEMICOND DEVICE SILI CON 55V...

Page 332: ...CB 1035 A22R45 321 0924 07 RES FXD F ILM 40K 0 1 0 125W 91637 MFF1816C40001 B 22 46 321 0924 07 RES FXD FILM 40K 0 1 0 125W 91637 MFF1816C40001 B A22R47 315 0151 00 RES FXD CMPSN 150 5 0 25W 01121 CB1...

Page 333: ...25W 01121 CB1035 22 143 315 0243 00 RES FXD CMPSN 24K OHM 5 0 25W 01121 CB2435 22 144 315 0562 00 RES FXD CMPSN 5 6K 5 0 25W 01121 CB5625 22R145 315 0221 00 RES FXD CMPSN 220 5 0 25 01121 CB2215 22 14...

Page 334: ...DEVICE SILICON 20V 1A 80009 152 0581 00 A23CR49 152 0107 00 SEMICOND DEVICE SILICON 400V 400MA 01295 G727 A23DS19 150 0035 00 LAMP GLOW 90V 0 3MA 53944 3 23 8 119 0181 00 ARS R ELEC SURGE 230V CAS FI...

Page 335: ...RES FXD FILM 5 10 DISC 15454 5DA5RO 270SS 23 8 120 0636 00 XFMR PWR STPDN LINE TRIGGER 80009 120 0636 00 23 25 120 0743 00 XFMR TO ROID 13 TURNS BIFILAR 80009 120 0743 00 23 30 120 0744 00 XFMR TOROID...

Page 336: ...AP FXD CER DI O lUF 20 50V 72982 8121 NO88Z5U104M A25C104 283 0195 00 C D C R DI 680PF 5 5 72982 8121N075000068 IJ A25C105 283 0353 00 CAP FXD CER DI O lUF 10 SOV 95275 VJ 1210Y104K A25C106 283 0136 0...

Page 337: ...UF 20 SOV 72982 8121 NO88ZSU104M A25C404 290 0804 00 CAP FXD ELCTL IOUF 50 10 25V 55680 25ULAIOV A25C407 290 0804 00 CAP FXD ELC 1 10UF 50 10 25 V 55680 25ULAlOV A25C408 283 0111 00 CAP FXD CER DI O I...

Page 338: ...ICON 30V 150MA 01295 1 4152 A25CR226 152 0141 02 SEMICOND DEVI CE SILICON 30V 150MA 01295 1 4152 A25C R227 152 0141 02 SEMICOND DEVI CE SILICON 30V 150MA 01295 1N4152 R A25CR231 152 0503 01 SEMICOND...

Page 339: ...5Q223 151 0190 05 RANS ISTO S ILICON NPN 80009 151 0190 05 A25Q227 151 0450 00 TRANS ISTOR S ILICON PNP SEL FROM 2 5583 80009 151 0450 00 A25Q250 151 1117 00 TRANS ISTOR S ILICON FE DUAL N CHANNEL 222...

Page 340: ...62 OHM 5 0 125W 01121 6205 25 51 321 0052 00 RE S FXD F ILM 34 1 0 125W 91637 MFF1816G34 ROOF 25 53 317 0360 00 RE S FXD CMPSN 36 OHM 5 0 125W 01121 3605 25 54 325 0334 00 RES FXD FILM 162 1 O OSW 14...

Page 341: ...21 5115 A25R232 321 0771 01 RES FXD FILM 50 0 5 0 125W 91637 FF 1816G50ROOD 25R233 321 0771 01 RES FXD FILM 50 0 5 0 125W 91637 MFF 1816GSOROOD 25 236 315 0103 00 RES FXD CMP SN IOK 5 0 25W 01121 CB10...

Page 342: ...11 0635 00 010151 RES VAR NONWIR IK 10 0 50W 73138 82 32 0 A25R331 301 0511 00 RES FXD CMPSN 510 5 O SOW 01121 5115 A25R332 321 0771 01 RES FXD FIL M 50 0 5 0 125W 91637 MFF 1816G50ROOD 25 333 321 077...

Page 343: ...0201 00 RES FXD CMPSN 200 OHM 5 0 25W 01121 CB2015 25 515 311 1261 00 RES VAR N ONWIR 500 10 0 50W 32997 3329 L 58 501 A25R516 315 0152 00 RES FXD CMP SN 1 5K OHM 5 0 25W 01121 CB 1525 25 517 315 0621...

Page 344: ...RCUIT DI 10 BIT SHIFT REGI STER 18324 8273 A25U521 156 0982 03 MICROC IRCUIT DI OCTAL D ED GE FF SCRN 07263 74LS374 A25U522 156 0982 03 MICROC IRCUIT DI OCTAL D EDGE FF SCRN 07263 74LS374 A25U533 156...

Page 345: ...F 20 50V 72982 8005 D9AABZ 5U 104M A26C1411 281 0775 00 CAP FXD CER DI O lUF 20 50V 72982 SOOSD9AABZ 5U 104M 26C 421 281 0775 00 CAP FXD CER DI O lUF 20 50V 72982 8005D9AABZ5U 104M A26C1520 281 0775 0...

Page 346: ...26 220 156 0469 02 MI CROC IRCUIT DI 3 8 LINE DCDR 01295 SN74LS138 NP3 26 230 156 0735 02 MICROC IRCUIT DI 4 BIT BI STABLE LCH BURN IN 80009 156 0735 02 A26U300 156 0385 02 MICROC IRCUIT DI HEX INVERT...

Page 347: ...009 156 0471 02 A26U1730 156 0388 03 MICROCIRCUIT DI DUAL D FLIP FLOP 07263 74LS74A A26UI820 156 0865 02 MICROCIRCUIT DI OCTAL D FF W CLEAR 01295 SN74LS273NP3 A26UI830 156 0388 03 MICROCIRCUIT DI DUAL...

Page 348: ...ABZ5U104M A27C920 281 0775 00 CAP FXD CER DI O IUF 20 50V 72982 8005 D9AABZ 5U 104M A27C921 290 0782 00 CAP FXD ELCTLT 4 7UF 75 10 35V 55680 35ULA4R7V 7 A27C922 290 0782 00 CAP FXD ELCTLT 4 7UF 75 10...

Page 349: ...0916 02 MI CROCIRCUIT DI 8 2 3 STATE BFR BURN 27014 DM81LS97 27 620 156 0916 02 MICROCIRCUIT DI 8 2 3 STATE BFR BURN 27014 DM81LS97 A27 U 700 156 0935 00 M CROCIRCU IT D MICROP ROCESSOR 16 BIT 80009...

Page 350: ...104 A28C RI 60 152 0141 02 SEMICO ND DEVICE SILICON 30V 150MA 01295 1 N4152 R A28C R260 152 0141 02 SEMICOND DEVI CE SILICON 30V 150MA 01295 1 N4152 R A28Q150 151 0190 05 TRANS ISTOR SILICON NPN 8000...

Page 351: ...1024 4 STATI C RAM 80009 156 1323 01 28 520 156 1323 01 MICROCIRCUIT DI 1024 4 STATIC RAM 80009 156 1323 01 A28U530 156 1323 01 MICROCIRCUIT DI 1024 4 STATIC RAM 80009 156 1323 01 28 540 156 1323 01...

Page 352: ...1UF 80 20 25V 56289 273C5 A29C1401 281 0775 00 CAP FXD CER DI O IUF 20 50V 72982 8n05 D9AABZ5U 104M A29C1410 281 0775 00 CAP FXD CER DI O IUF 20 50V 72982 005D9AABZ 5U 104M A29C1411 283 0177 00 CAP F...

Page 353: ...SILICON 30V 150MA 01295 IN4152R A29CR2437 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 IN4152R A29CR2620 152 0333 00 S MICOND DEVI CE SILICON 55V 200MA 07263 FDH 6012 A29CR2621 152 0333 00 SEM...

Page 354: ...1035 A29R800 315 0244 00 RES FXD CMPSN 240K OHM 5 0 25W 01121 CB2445 A29R801 315 0103 00 RES FXD CMPSN IOK OHM 5 0 25W 01121 CB 1035 A29R900 315 0105 00 RES FXD CMPSN IM OHM 5 0 25W 01121 CB 1055 A29R...

Page 355: ...1637 FF1816G200ROF 29 635 321 0126 00 RES FXD FILM 200 0 125W 91637 MFF1816G200ROF A29RI 700 311 1240 00 RES VAR NONWIR 25K 10 0 50W 73138 72 30 0 29 701 321 0222 03 RES FXD FILM 2K 0 25 0 125W 91637...

Page 356: ...MFF 1816G48700F 29 2701 315 0752 00 RE S FXD CMPSN 7 5K OHM 5 0 25W 01121 CB7525 A29R2710 315 0124 00 RES FXD CMPSN 120K OHM 5 0 25W 01121 CB1245 A29R2711 315 0153 00 RES FXD CMPSN 15K OHM 5 0 25W 011...

Page 357: ...41C U A29U1310 156 1236 00 MICROC IRCUIT INTFC DUAL SPST ANALOG SWITCH 80009 156 1236 00 A29U1330 156 0405 00 MICROC IRCU IT DI DUAL RETRIG MONOSTABLE MV 07263 9602 PC OR DC 29 410 156 1236 00 MICROC...

Page 358: ...01 A29W110 131 0566 00 BUS CONDUCTOR DUMMY RE S 2 375 22 AWG 55210 L 2007 1 29W 1401 131 0566 BUS CONDUCTOR DUMMY RE S 2 375 22 AWG 55210 L 2007 1 A29W 1411 131 0566 00 BUS CONDUCTOR DUMMY RES 2 375 2...

Page 359: ...K OHM 5 0 25W 01121 CB 2235 30R210 315 0223 00 RES FXD CMPSN 22K OHM 5 0 25W 01121 CB 2235 30R301 315 0223 00 RES FXD CMPSN 22K OHM 5 0 25W 01121 CB 2235 A30R302 315 0223 00 RES FXD CMPSN 22K OHM 5 0...

Page 360: ...P FXD CER D O lUF 20 50V 72982 8005 D9AABZ5U104M 31 210 315 0152 00 RES FXD CMPSN 1 5K 5 0 25W 01121 CB 1525 A31 R220 315 0222 00 RES FXD CMPSN 2 2K 5 0 25W 01121 CB2225 31 222 315 0201 00 RES FXD CMP...

Page 361: ...83 A32VR16 152 0195 00 SEMICOND DEVI CE ZENER 0 4W 5 1V 5 04713 SZ 11755 33 CKT BOARD ASSY X COMPEN SATION A33C822 283 0603 00 CAP FXD MICA D 113PF 2 300V 00853 D153F1130GO A33C825 283 0668 00 CAP FXD...

Page 362: ...RES FXD CMPSN 22K OHM 5 0 25W 01121 CB2235 36 542 315 0223 00 RES FXD CMPSN 22K 5 0 25 01121 CB2235 A36R543 315 0223 00 RES FXD CMPSN 22K OHM 5 0 25W 01121 CB2235 A36R544 315 0223 00 RES FXD CMPSN 22K...

Page 363: ...COPPER 52961 ENG 8000 A37S530 131 2202 00 CONTACT ELEC BERYLLIUM COPPER 52961 G 8000 A37S550 131 2202 00 CONTACT ELEC BERYLLIUM COPPER 52961 G 8000 A37S560 131 2202 00 CONTACT ELEC BERYLLIUM COPPER 52...

Page 364: ...ER 52961 ENG 8000 A37S1250 131 2202 00 CONTACT ELEC BERYLLIUM COPPER 52961 ENG 8000 A37S1260 131 2202 00 CONTACT ELEC BERYLLIUM COPPER 52961 G 8000 A37S1270 131 2202 00 CONTACT ELEC BERYLLIUM COPPER 5...

Page 365: ...00 COIL RF 1MH 80009 108 0761 00 L81 108 0685 00 COIL RF 80NH 80009 108 0685 00 L82 108 0685 00 CO IL RF 80NH 80009 108 0685 00 Q28 151 0656 00 T RANSISTOR SILICON NPN 04713 SJE1972 Q34 151 0632 00 T...

Page 366: ...C ty p e _ _ Test V oltage H eat Si nk Boa rd N a m e Tekt r o n ix Pa r t No __ fo r ci rc u it boards 14 15 1966 Drafti ng Practices 14 2 1973 Line Conventions and Letteri ng 10 5 1968 Letter Symbol...

Page 367: ...y Followe r Acqu isition 3 36 Calc u lato r K ey b oa rd Wavefo r m Calc u lato r 19 36 37 Calculator Button Wavefor m Calc u lator 19 __ Board ___ Assembly _ Board schematic _ _ Name Numb er 0 Locati...

Page 368: ...7un im u Board LocaUons mm m ____...

Page 369: ...CASED TRAN SISTORS I NDEX C INDEX HIG HEST PIN NUMBER INTEGRATED CIRCU ITS LIGHT EMITTING J SIGNAL DIODE J L DIODE L E D Figure 7 2 Semiconductor Lead Configurations PLASTIC POWER L_DARLINGTO N _ TRA...

Page 370: ...CHASSIS MOUNTED PARTS CIRCUIT SCHEM SCHEM NUMBER NUMBER LOCATION L37 15 L81 9 L82 9...

Page 371: ...7854 2074 235 REV M AR 1961...

Page 372: ...7874 235 REV MAR F 1 m CA BLE DISTRIBUTION...

Page 373: ...CR26 R26 C27 Chassis mounted components have no Assembly Number lifefi See end of Replaceable Electrical Parts List R13 R35 R34 R 32 R 33 C16 R16 R 19 R36 R24 C1 R23 R15 R25 C22 R 22 38 C70 70 17 Q12...

Page 374: ...CR 58 CS CR 89 F4 CR 90 F5 CR 91 F3 CR 92 F3 C R 93 F4 C R 94 F4 CR 95 F4 C R 96 F4 C R 97 F4 C R 98 F4 C R 99 F5 C R 100 G3 C R 101 G3 C R 102 G4 C R 103 G4 C R 104 G4 CR 105 G4 C R 106 G4 CR 107 G4...

Page 375: ...E3 R102 G4 F3 G5 E3 R121 G5 D2 G5 D2 S1 1 D4 81 C4 S2 1 4 87 C4 S40 83 84 81 D4 S109 G3 F4 1 D4 S170 G3 4 81 E4 Cl G3 Ul C1 D3 C1 G3 U51A D2 G3 C1 G3 U51 D3 G3 Cl G3 U51 C D2 G3 4 2 U51 D D2 G3 4 2 U...

Page 376: ...DC OUTPUT 5 RES ET 5 5 540 CALIBRATOR NOTE FOR CALI B RATION PU RPOS E S ON LY D EPRESS 4V AND 4 SW I7CN E5 SIMULTANE O U S LY 7 DISA BLE OSCILL ATO R AND ADJUST TEST PLU L PI FROM 5 3 TO FROM 63 62...

Page 377: ..._ CL w u N m U MK N J x C COMPONENT NUMBER EXAMPLE 0102MORK 1 5102 6 w 15v 14 MODE SWITCH AND CALIBRATOR u l T To P554 v P5 wT Y...

Page 378: ...Number Subassembly Number be 1 use d Chassismountedcomponents have no Assembly Numb er ef see end id R e aceable Electrial Parts List U65 R66 R68 J 1 J13 8l 0 6J GE GA GY Of GIN 132 95 J31 CA an CH cc...

Page 379: ...108 FX F A W 81 81 BG F FB FC FH NO m m FD FE AF R 3 F FO FF F FG e m Q139 J 157 ON FT F HK HL FC BY J168 All MAIN I N TERF AC E B OAR D Sh aw n on d ags 3 4 5 0 10 REV J A N 1982 See Parts List fo r...

Page 380: ...C2 R 147 G3 3 C133 G1 C4 R31 2 C1 R 148 G3 3 C134 G1 J4 R4 2 C2 R 156 G4 J5 C143 G3 2 R7 3 F6 R 158 F 4 G6 C160 4 2 R8 83 C6 R 159 G4 J7 R13t 4 E2 R 160 4 1 CR 19t 84 C1 R14t 4 E2 R 161 F 4 J5 CR49 D3...

Page 381: ...__ 7 _ P82 w 7854 CE u LEFT VERY BOARD m R36 J2 HA HD 14C FORCE MOWT ALEX Do TO PIK D SUPPORT __ __ HR m rl y HG HE FL FK F14 FE w a px s mm c CAI l Ol COMPONENT NUMBER z sep...

Page 382: ..._ _ _ _ _ __ _ _ __ CR II7 ISV PIIS R lli J4 82 7 DELAY NODE J i 82 6 DELAY MODE q _ __ _ ___ _ _ j RESE7 CRII3 0 5 Jq 835 m _jj3ly 70 FROM J3 35 m 5 Jz 35 m j m 0 1447 JI 35 aLEFT RI40 6 24 FROM 6 32...

Page 383: ...used Chas is mounted Components have no Assembly m e f see end of Replaceable Electrical Pails List Static Sensitive Devices See Mai ntenance Section F ig ur e 7 5 A14 Logic ci rc uit boa rd assem bl...

Page 384: ...d assembly 14 LOGIC BOARD Shown on d ag 4 REV M AR 1981 BY ISAA BE 61 Cl CC Cc GG Al J F c C32 j NA 40 7 No...

Page 385: ...0141 F3 Q142 F3 0146 G3 Q150 4 0157 4 R1 1 R2 1 R3 2 R4 2 R8 82 R9 2 R11 2 R12 82 R13 82 R16 81 R17 C1 R21 1 R22 2 R23 2 R26 C1 R27 C1 R29 C2 R30 C2 R36 C2 R39 D1 R40 D1 R41 D2 R45 D1 R48 D2 R49 E2 R5...

Page 386: ...T HORIZONTAL M ODE READOUT I NT E NSITY OFF No p lug in units were i nstalled Voltage Conditions The voltages on the diagram were taken using digital m u ltimeter with 10 MO input impedance Tektron ix...

Page 387: ...A M _ g_ um JOBS wv w 5 W PROM VEVICkl MODE PROM wm r 7854 HC 332 15V n n Wok HORIZONTAL MODE FROM M M 1 f 1 DIE A _ CWSq _ A I O...

Page 388: ...MAX BRIGHT NESS FROM CURRENT SOURCE BYPASS CATE CATE Axis UIgo ISV RI91 R I84 _ 2 4 k 66k _ 1 I _ _ _ 6 CONT ROL R Ig2 193 15V 3 24 k 20k 3 37 32 k 3 97 304 137 820 Q136 36 8 CONTROL _ __58570 DIS PLA...

Page 389: ...components have no Assembly N umber e1 see end Re daceable Electriul Parts List r R648 R689 R645 R696 C696 IT BS R695 m R516 R517 R589 11 R545 CR 526 1558 R579 CR626 R555 m 503 R593 R581 R596 C596 b R...

Page 390: ...48 G1 F4 R 563 84 D1 J 562 4 C1 R 565 D4 D2 J572 5 C1 R 566 D4 C3 R 567 D4 C3 LR 531 D2 E3 R 569 C5 C3 LR 534 D4 D2 R 571 D5 E3 LR 536 03 E3 R 572 5 C1 LR 539 D3 D2 R 573 85 D1 R 575 D5 D2 554 2 2 R 5...

Page 391: ...mid range No pl ug in units we re installed Voltage Condtions The voltages thediagram were taken using digital mu ltimeterwith 10 i nput impedance Tektronix DM 501 Digital Multimeter installe d 501 Po...

Page 392: ...02 TRIGGER OU T J562 9 RIG HT VERT i FROM J2 3 R562 r R563 16 5 16 5 T RIGG ER OUT 4 V RT R663O TRIGGER OUT RIGHT VERT 70 673 6 R572 R673 16 5 16 5 15 U520 AMDLI FI ER 287 4 239 MA R 198l J502 AV_ R50...

Page 393: ...umber Ch nted n nent haven Assemb ly Number prefix see id 1 R eplaceable lectdcal hit List W ISV 15V DISPL AY R IG H T TO R 522 5 V FR OM 7 1 J2 70 6 22 6 TRIGGER SELECTOR 70 FROM 3 Static Se n sitive...

Page 394: ...rical Parts List 684 R694 m R667 r R671 6 J 15 R 666 R 676 837 15 C669 R669 R695 J572 GND 5 R 648 R689 R645 R696 C696 R683 R693 R681 691 0889 1698 J502 C R 605 R 575 R 6 RS66 _ R 569 C567 y R576 R 518...

Page 395: ...G3 R663 84 C1 C R 622 83 2 R665 D4 2 CR 626 C3 G3 R666 D4 3 R667 D4 3 LR631 D2 C3 R669 C5 3 LR634 D4 2 R671 D5 3 LR636 D3 C3 R673 5 C1 LR 639 03 2 R675 D5 2 R676 D5 3 554 2 2 R677 D5 3 R681 F3 3 0624...

Page 396: ...were i nstalled Voltage Conditio ns The voltages on the diagram were taken using digital mu ltimeter with 10 MO input impedance Tektron ix DM 501 Digital M ultimeter installed in TM 501 Power Module o...

Page 397: ...15V 5V R IG FI C HANN t L 1 IL AMP LIFIC T RIGG ER OUT G _6 VD LEFT VERT s 1 m FRO M R502 o5 603 R6051f 6 5 i 5 3 TRI ER OUT 16 5 LEFT VERT m FROM R512 n5 CO 4R 5 TRIGG ER OUT RIGHT VERT _ _ 3 FRO M R...

Page 398: ...nt Numb e 23 2 R1234 Assembly S hem t11 C Number Su bas embly umb er Numh r use d C h ri s soled p 7 h Assembly b r f end of R eplaceable L ist C ND 7 NOTE f DEN OT E S LE AD RE ACTANC E S V FROM R57q...

Page 399: ...121 R 150 9159 R 13 13 122 158 C13 U 150 C15 R 159 111 L R 129 0166 C112 R 16 R 242 W R 112 R oe R241 cc R 1 07 R86 096 C83 R243 R 156 C153 R07 C242 91699179 J1 02 J 1 6 1 R 163 88 R233 9243 R 163 087...

Page 400: ...E3 3 R 30 2 D5 C180 E3 3 R 32 2 D6 C183 E4 4 R 33 2 D6 C188 F 3 4 R 34 2 C6 C195 F3 C3 R 36 C2 C6 C221 4 E6 R 37 C2 C6 C222 4 E6 R 38 C2 C6 C223 85 D5 R 41 C2 C6 C224 85 E5 R 42 C2 6 C234 C4 6 R 43 C...

Page 401: ...153 D3 D3 C188 F3 84 R34 B2 C6 R154 D4 D3 C195 F3 C3 R36 C2 C6 R156 D4 D2 C221 84 E6 R37 C2 C6 R157 D4 D2 C222 B4 E6 R38 C2 C6 R158 D4 E2 C223 B5 D5 R4i C2 C6 R159 D4 E2 0224 B5 E5 R42 C2 86 R160 D4 E...

Page 402: ...d with a readout equipped 7000 Series Oscilloscope Waveform Conditions The waveforms shown below were obtained using a test oscilloscope system with 10 MS2 impedance at least 60 MHz bandwidth and 10X...

Page 403: ...ICOMP II I0 0k _LF351N _ R25 R33 R37 R42 R45 _ nv 2004 T IOOk 50k DISPLAY LEFT a 16 v SV U 75 cIIgNNEL ye J mso a RIGNT _ __ _ bier RL uT s5y to IRk233 C234 s5Y R243 R231 _ 4 7rF_ a _4VI R141 B2 464k...

Page 404: ...ISV ISV VERTICAL 514 TO J90 i _ VERTICAL SIG TO J89 B7 24 2EV JuL 1981 VEI fICAL CHANNEL SWITCH Static Sensitive Devices SeeMaintenance Suticn CDMPDNENi NUMBER E AMPLE A23 A2 R1234...

Page 405: ...6ap U5a5 U59p U595 U60J n U619 U630 r1 a OC Y Ag p ti Nr n UUUUUUUUUtS a SC R57 K 0556 C3a9 U570 z U556 U869 U R33a R337 73 3 C328 CRJ71 CR 3i Q OI17 N N U ia naU R 26 V U CR 2a w n R 19 O O Q rn R72Z...

Page 406: ...9 F JHI CM C61 R59 8357 R352 e SlTt tJy 038 R75J OISf C 21 C 12 03V5 a 8256 RSif Z 4 f R60 C67 061 U 8257 G C J R 16 f G O R25V n m pR397 n C2 5 t77J J U ij a J R31 7 m om C 19 aC 4 11l1 Y71 JNI ViS...

Page 407: ...MBER C2 B1 K3 R11 C3 B1 L2 R12 C4 B1 K3 R13 C6 B2 K4 R19 C11 B3 J3 R20 C12 B3 K3 R21 C13 B3 K3 R22 C23 C3 R23 C24 D3 R24 C30 D2 R30 C33 C2 R31 C40 C3 J3 R32 C42 C3 R33 C50 D4 R34 C52 D4 R37 C53 C4 R39...

Page 408: ...r with a 10 MS2 input impedance Tektronix DM 501 Digital Multimeter installed in a TM 501 Power Module or a Tektronix 7D13 Digital Multimeter used with a readout equipped 7000 Series Oscilloscope Sele...

Page 409: ...45pH CI34 47 V TO R246 SV2 SV t15v r SV PARTIAL A25 DIC ITIZ 7854 2874 242 REY JAN 1982 CI3 022 Hf4 HF S C42 SEL RKI a 4 R43 SEL L R54 16 2 R34 16 2 R32 20 SEL C52 Ipf SEL R51 34 0 3 10 C53 IpF R53 36...

Page 410: ...ams moumeecomponemsna e olemdrN mnm peln sx end of eeyaceade fledr al Parts lisl PARTIAL ALS OIyIT IZER BOARD 242 N 1982 VERTICAL PICKOFF AMPLIFIER i 1 P SN BO4W6A BELOW _ J241 VERTICAL POKOFF TO R245...

Page 411: ...Number pehu see end of RepaceaNe Electnwl Parts Ust i Static Sensitive Devices See Maintenance Section C211 C206 P190 L203 L201 R121 R122 L213 R123 TP R166 R167 R137 Q LR207 R169 C169 R139 0739 CI10...

Page 412: ...F3 C206 F4 C2 C207 F4 E2 C208 F4 G2 C205 F4 E3 C210 F4 E4 C211 F4 C2 C213 F4 D1 C226 F4 F5 C229 F4 G4 J9 B2 D3 J10 81 D4 J11 A3 82 J43 A4 A2 L6 B1 D4 L7 B1 D4 L20 C2 E4 L26 B2 E3 L27 82 D3 L133 D1 F4...

Page 413: ...C1 E4 R133 C161 E2 D2 R11 C1 F4 R136 C168 E2 E2 R12 C1 E4 R137 C169 E2 F2 R14 D1 F4 R138 C170 E2 F2 R18 B2 E4 R139 C171 E2 F2 R20 C2 E4 R140 C172 E2 F2 R21 C2 E3 R141 C177 F3 G3 R26 B2 E3 R142 C178 F...

Page 414: ...mpedance at least 60 Mfiz bandwidth and 10X probe Tektronix 7603 Oscilloscope 7892 Time Base 7A13 Differential Comparator and P6063A Probe A Calibration Fixture Tektronix 067 0587 01 with controls set...

Page 415: ...RII3 40 2 F5 8V2 RII 51 1 R41 178 4F AFiFLIFIE NOTE THERMALLY EQUALIZED THERMALLY EQUALIZED i THERMALLY EQUALIZED f THICK FILM RESISTOR NETWORK INTEGRAL PART OF THE BOARD DENOTES LEAD INDUCTANCE Stat...

Page 416: ...ED ERMALIY EQUALIZED ERMAILY EQUALIZED ICK FILM RESISTOR NETWORK EGRAL PART OF THE BOARD dOTES LEAD INDUCTANCE Slant Sensitive Devices SeeMaintenance Section FRDM P207 rt R83 CRT TERMINATION lL4 _A _...

Page 417: ...rcuit board assembly A B C D E F R8 L82 L84 L81 J2 v Cf C82 CG J1 C84 CH R67 C81 C83 C11 n N D s R37 JB w R31 c N U87 a37 C49 a R33 U20 Q32 C33 Q36 CR38 BR Cg R41 R42 a pt R47 R38 R9 C14 W a Cq Q62 Q8...

Page 418: ...l used Chassis mounted components have no AtsemMy Number prelix see end of Replaceade Electncal Parts list A9 HORIZONTAL CHANNEL SWITCH Shown on diag 0 A10 HORIZONTAL INTERCONNECT BOARD Shawn on diag...

Page 419: ...C2 R7 D1 81 C44 F2 R8 D1 B1 C49 E3 E2 R9 D1 82 C63 F2 D2 R11 D2 C3 C65 F3 D3 R12 D2 83 C81 D3 D1 R13 D2 83 C82 D3 C1 R14 D2 82 C83 D3 E1 R21 D3 C3 C84 D3 D1 R31 E1 D2 R32 E2 C2 CR36 E3 E2 R33 E2 D2 J1...

Page 420: ...ltimeter used with a readout equipped 7000 Series Oscilloscope Waveform Conditions 1 he waveforms shown below were obtained using a test oscilloscope system with 10 Mfg input impedance at least 60 MHz...

Page 421: ...H8V _m CH _ CBI n iISVI CBI 3 9pH IrF a5V _ IICF vSVI L82 _ I I 3 9pH T I IF Guo o ke J7 RB3 C83 5y 6 __ _ 2 7 22NF 200pH C84 If ISV m I ICG L84 ___ _ _ p _ ISVI R71 LB2k ISVI HORIiOrvl1 7854 L832 Lg3...

Page 422: ...CW Sag L SEL 3 418 vy vW_ y A 1Q R43 4AIN 182 S 7 R33 95 3 soaG se s n e oe m a s Nnmo a e se i o 11 iNE A33 v COMPENSATION 80ARD RI20NTAL INTERCONNECT BOARD COMPONENT NUMBER EXAMPLE Coy Ngm5en n_ A23...

Page 423: ...R1 R4 V R167 012 R 101 e 2 Q103 R169 R102 as a 8196 Q197 Cl134 Q C166 Q182 8186 R197 R737 U3 n 7 R133 R122 CR161 R164 01181 C169 4189 n a Q R14 J5 C122 R161 0164 0171 R 134 a ea R 123 8143 R 166 8109...

Page 424: ...B1 R133 C2 B2 C201 83 C4 R3 C2 C1 R134 C2 B2 0202 g3 Cq R4 C2 D1 R137 C3 C2 C203 E3 D4 R6 C1 D2 R141 D2 D2 C204 E4 D1 R8 A1 83 R142 D2 D1 0206 B3 C4 R9 A2 B3 R143 D3 D2 C207 84 C1 R11 C1 B2 R151 D2 D...

Page 425: ...eter used wish a readout equipped 7000 Series Oscilloscope Waveform Conditions The waveforms shown below were obtained using a test oscilloscope system with 10 MS2 input impedance at least 60 MHz band...

Page 426: ...FROM P130 7854 ygp REV 820TH 22pF 50V _ _ __ m _ TO P207...

Page 427: ...mber m _ _ mom rA23 A2R1234 Assembly I Schemahc Number Subassembly Oi curt Number plused a Number Ghasns muunled componentshavenp AssemblyNumber preliv see en0of Replaceable Ele Iri al Paris trst Stat...

Page 428: ...umber Number ll usM1 Chassismounled components have no Assembly Number peha see end of Redaceable Electncal Parts List Static Sensitive Devices See Maintenance Section A B C D a 2 C13 R13 R12 c CR12 R...

Page 429: ...E2 C4 CR78 E2 C4 J20 F2 D4 J64 C2 A4 J65 C2 A4 J66 C2 A5 J67 C3 A6 Jfi8 C3 A5 J80 F2 D5 J96 F5 D6 P35 84 A3 010 D2 C3 011 D2 B3 017 E2 D3 Q49 D3 85 062 D3 B5 077 E2 C4 R3 C2 83 R9 D2 C2 R11 D2 83 R12...

Page 430: ...ultimeter used with a readout equipped 7000 Series Oscilloscope Waveform Conditions The waveforms shown below were obtained using a test oscilloscope system with 10 MS2 input impedance at least 60 MHz...

Page 431: ...15V j C91 22NF J Y Rlb 5 23K 7854 2874 246 REY A MAR 1981 ISV il 48...

Page 432: ...nemar c rircurt Number Snbasmmbly Number Number prosea n Cna un edcpntppnenlsdavannAsseniblyNUmber preIIxI ee end pf Replereahle nedrical Pans Lis Static Sensitive Devices See Maintenance Section sawT...

Page 433: ...m m o o m a a aa vyNm m O t 0 O m UQda _ M ci N r U U V V c u U U V 7 m m TP122 o c e d d R36 M fy N v U CR37 C C TP10 O o CR36 m e son x m s W y o N d d d O d a 1 7 N M N n N N N m r0 N N N t7 r N m...

Page 434: ...C3 0132 C3 83 R132 C172 E4 C3 0142 C4 83 R133 C179 E4 B4 0143 D4 A4 R134 C180 E4 B3 0162 E3 A4 R135 C183 E4 B3 0166 E4 A4 R136 C186 F4 C5 0167 E4 A4 R141 0173 F4 84 R142 CR32 D1 D1 0183 F4 B4 R143 CR3...

Page 435: ...C3 82 C172 E4 C3 0142 C4 B3 R133 C3 B3 C179 E4 84 0143 D4 A4 R134 C3 C3 C180 E4 83 0162 E3 A4 R135 C3 C3 C183 E4 B3 0166 E4 A4 R136 C3 82 C186 F4 C5 0167 E4 A4 R141 C4 B2 0173 F4 B4 R142 C4 82 CR32 D1...

Page 436: ...z bandwidth and 10X probe Tektronix 7603 Oscilloscope 7892 Time Base 7A13 Differential Comparator and P6063A Probe Waveform 1 conditions 7B80 Time Base with controls set as follows TIME DIV 1 ms TRIGG...

Page 437: ...9 10 21 130V 130V SOV m 3 50V ISV a 4 a ISV 5 I a GND ISV 6 a ISV SOV 7 50V XYINH FROM J37 P57 A wT s_r E FROM P57 2 Q ISV2 U J NE529 SE E PARTS LIS SEMICONDUCT 70 t 13 8 ISV Static Sensi See Maintes...

Page 438: ...Q ISV R162 2k RI77 TPI86 I P65 m lVFMINT TO P65 RI67 680 ISV2 RI68 3k 130V 130V R 4 99k C R7S 75k SOV ISVI CR R81 R82 IOk O 50V R83 C83 100 OI ISVI COMPONENT NUMBER EXAMPLE Component Number A23 A2 R...

Page 439: ...a o aa t ac s U Sav M aaNm a r v o h N o m V U VUU U U N N T Y2 n O v OI m O d R36 _ TPp3 O p V CR37 CR36 m O N an M d N N N O d O a d Q M e7 r N m m N N N m N N 4 U N N N lD a M _a U N O r N m c7 y m...

Page 440: ...C118 R62 R128 R115 m e TP113 a R119 m 8143 htic Sensitive Devices See AWirrtenance Section INENf NUMBER EXAMPLE Component Number A23 R1234 Scbemabc a urt Number Number d usedl ledcomDOne love no hsemd...

Page 441: ...F5 C33 82 C5 CR126 C4 G1 R67 C3 B3 C34 B2 F5 CR129 C4 G2 R69 C3 84 C36 B2 C4 DS45 C2 D4 R72 C2 C5 C39 C2 C4 DS46 C2 D4 R73 C3 84 C42 C2 D4 DS47 C2 D3 RB4 C3 F3 C53 D2 E4 DS75 C3 C4 R86 C3 F3 C64 B3 A...

Page 442: ...7854 zax zas Ra AN wez...

Page 443: ...6451 v451 i50V R95 a SM FOCU9Q RESET 2974 249 REV JAN 1982 L21 HIGH VOLTAGE POWER SUPPLY AND CRT...

Page 444: ...n U U U t f12 D74 O4D I 5 _ A23 I I I I I 2874 716A A B C D E F G N P s4 P 4e P sD uss r P 52 _ C156 Ct 3 CI35 Ct54 C14 1 CN5 C153 C155 1154 o C142 CN4 L102 1132 U34 CI72 C91 1144 i ci u L152 1 coo cR...

Page 445: ...CR122 CR123 CR124 CR125 CR127 CR130 CR131 CIRCUIT SCHEM BOARD CIRCUIT NUMBER LOCATION LOCATION NUMBER _ _ WA3 _ CR32 83 CR33 84 CR34 82 CR36 A2 CR37 D4 CR38 D4 CR39 E3 CR40 F3 CR41 E1 CR45 D3 CR46 H2...

Page 446: ...5 R61 83 85 R172 E4 B4 D3 E4 CR66 B4 85 CR171 E4 84 R62 B3 85 R173 E3 A4 C4 D4 CR73 D3 E4 CR183 F3 A5 R63 B3 85 R174 E3 A4 D4 F4 CR74 D3 E5 R64 84 A5 R176 E4 A5 D4 B5 CR75 D3 E4 L132 F2 C2 R66 C4 C5 R...

Page 447: ...in units were installed Voltage Conditions The voltages shown on the diagram were obtained using a digital multimeter with a 10 Mfg input impedance fektronix DM501 Digital Multimeter Waveform Conditio...

Page 448: ...SENSE R34 7854 1874 249 REV JAN I9g2 P10 Fa A slaH se slm oe es Sec Malntcnance Sevhon R61 12k R62 300 R69 47 27 0012 fl C28 0022 L55 I eo0 NSE DRIVE CONTROL FAVLT NOLOOFF TM LINE STOP TIMER FAULT SE...

Page 449: ...2b74 249 REVJAN 1982 CONVERTER RECTIFIERS...

Page 450: ...trical Parts Ost V V t o Static Sensitive Devices See Maintenance SecNOn C a i C69 R69 C24 R24 _ R129 P50 R27 R54 R26 C54 ii 0118 R67 R68 at R28 R57 098 C88 C88 CR22 CR52 a U114 R52 R63 R22 052 R88 R1...

Page 451: ...Figure 7 22 A16 Fan circuit board assembly A22 LOW VOLTAGE REGULATOR BOARD Shown on drag 16 REV A MAR 1981 A B C R27 s Ns 820 C10 C13 U U1B r U C 2 Q M N N N Q K U10 S 5 U U U r P80 A B CR10 3 A16 297...

Page 452: ...2 A3 E3 R132 E3 G3 C68 D1 B2 P82 E3 BS R44 B2 E4 R133 E3 G2 C69 E1 B3 P83 C2 ES R45 A2 C5 R134 E3 H2 C84 D3 E3 P83 E1 E5 R46 83 C5 R135 E3 F6 C88 02 F2 P83 E3 E5 R47 83 D3 R136 E3 G2 C114 D3 G3 P90 A3...

Page 453: ...vw _ T o_ _ _ m _ _ r ssa _ w _ _...

Page 454: ...44 5 6k LuGHr suPPLV _ I I ___ _ _ E __ q r V P50 I jZ CRM3 v6 SV I ly v SMARTS 3LF 17V Cb9 001 SEE PARTS LIST FOR S s SEMICONDUCTOR TVPES a CNp 9i_a static sensirnme neeicea See Mamfbnxnce IP62 lan v...

Page 455: ...ly Number Number iy used ChassmmounteEcomponeMS have no Assemdy Number pellr see end of RepaceaWe Fleclnwl Parts List Figure 7 24 Afi Pot Adjust circuit board assembly Static Sensitive Devices See Mai...

Page 456: ...artialA5 ASSY a sn shown on diagrams 2 and 14 A5 IN itNSl fY CON7ROL BOARD Shown on diags 2 14 17 RSV JAN 1982 CIRCUIT SCHEM BOARD NUMBER LOCATION LOCATION ___ _ _ P67 D4 W _ C1 _ P67 E4 C1 P142 E5 A1...

Page 457: ...SITY OFF No plug in units were installed Voltage Conditions The voltages on the diagram were taken using a digital multimeter with a 10 Mfg input impedance Tektronix DM 501 Digital Multimeter installe...

Page 458: ...OFF READOUT MAX ISV S STORED INT ISV ISV 569 7854 2874 251 REV A MAR 1981...

Page 459: ...ATELY TO PI30 Static Sensitive Devices See Maintenance Section COMPONENT NUMBER EXAMPLE Component Number A23 A2 R1234 sedemara AssemdN l i L aremf Number Svdassembly Numder Number itused Chassis mounl...

Page 460: ...sis mountedcomponents have no Assem pehx see end of geplaceade Electrical P A B C D E 1 R300 R301 8302 U400 R303 P110 R310 _ R311 C510 P210 8312 U510 0110 C00 R313 C610 R610 RIIO P420 861 1 P620 e ac...

Page 461: ...A4 C430 A2 C3 8230 82 B4 C510 A3 D2 R231 B2 B4 C511 G2 D2 R300 Ft B1 C610 83 D2 R301 F1 B1 LS520 B3 p2 R302 F2 B1 8303 F2 82 P108 A2 C4 R310 F3 B2 P108 C3 C4 R311 F3 82 P108 F4 C4 R312 F2 82 P108 G2...

Page 462: ...igital multimeter with a 10 Mfg input impedance Tektronix DM 501 Digital Multimeter installed in a TM 501 Power Module or Tektronix 7D13 Digital Multimeter used with a readout equipped 7000 Series Osc...

Page 463: ...c 94 R320 a Rt 220 Q330 R231 S Ik r r r D5720 yy j D5721 y j D5700 rSRq I RpNDVEI I BOSV 5630 7854 2874 252 REV JAN 9B2...

Page 464: ...COMPONENT NUMBER E AMPLE SVD i5V0 2874 252 REV JAN 1982 FRONT PANEL KEYBOARD 5440 5410 CRS1 S OREDV _ Xb l 5340 WIDTH o C _ l O SI4_0 FALL RIS f5_710__ l_ RQS 5400 aQR _ X5 C STROBE of PRESSING THEM_...

Page 465: ...circuit board assembly Static Sensitive Devices See Maintenance Section COMPONENT NUMBER EXAMPLE Component Number w A23A R1234 Schematic Assembly _i Circuit Number Subassembly Number Number il used Ch...

Page 466: ...A36 CALCULATOR KEYBOARD BOARD Shown on diags 19 36 A37 CALCULATOR BUTTON BOARD Shown on diag 19...

Page 467: ...50 E1 84 5360 F1 85 5370 F1 B6 5410 D3 C2 5420 E3 C3 5430 E3 C3 5450 E3 C4 5460 E3 C5 5470 F3 C6 5510 D3 D2 5520 E3 D3 5530 E3 D3 S550 E3 D4 5560 E3 D5 5570 F3 D6 5610 D2 D2 5620 E3 D3 5630 E3 D3 S650...

Page 468: ...timeter with a 10 MSS input impedance Tektronix DM 501 Digital Multimeter installed in a i M 501 Power Module or Tektronix 7D13 Digital Multimeter used with a readout equipped 7000 Series Oscilloscope...

Page 469: ...785 W _ _ __ _ __ ___ _ __...

Page 470: ...PLE Cam nenlNUmpen A23 A2 R1239 P300 ROWS D k0 R545 22 R543F 22KS 14I D5 R542 22K 5Vo 5 R53D 22K R541 22K 5Vp13 D6 5Vp R531 _ 22K SVo R532 22 K SVp SVp RzzK3 a5sz l D4 1 DD 02208 7aL505 NOTE REMOVED f...

Page 471: ...J60 0356 R37a 8366 i0f n n w 0 N a C 9SOf R36a R376 ro n 1 Sa 9 S2 0 8379 C 7 TR820 a 1509 U510 R uC R351 0 R 6 RJ 9 R75J C66 R352 1 02 I C 2a C 12 C6a8 0613 X51 4 u a uslo U620 8616 C 1 as CBo u m i...

Page 472: ...A25 DIGITIZER BOARD Shown on diags 8 20 26 Figure 7 29 A25 Digitizer circuit board assembly...

Page 473: ...0285A F2 H2 0 2858 G2 H2 0286 G2 H1 0296 H1 H1 0311 B3 G4 0322 B3 G3 0323 C3 G4 0327 C3 G3 0350A E3 G1 03508 F3 G1 0351 E4 G2 0352 E4 G2 0356 F4 F1 0362A F3 G1 03628 F4 G1 0363 F3 G1 0373 F4 G1 0384 F...

Page 474: ...put impedance at least 60 MHz bandwidth and 10X probe Tektronix 7603 Oscilloscope 7892 Time Base 7A13 Differential Comparator and P6063A Probe A Tektronix 7A26 Dual Trace Amplifier with controls set a...

Page 475: ...I L404 m200MH y70 1 filOyF 07 IOrF i00yH h O I 10 aF e aI5V5 o NSV7 a15V 0146 0 1 v SEE r R243 y CR244 39 R241 c24 Ik TOn ISV3 y R326 0326 ISV6 C337 y ISV6 560 IOyFQ327 0 1 0 3k0z 1 X34 ___ CR331 C33...

Page 476: ...q63 R264 511 R269 910 ISVS z y T C269 T blki SR258I m0 1 976 ISVS 1 8274 ISVS 511 _3 __ _ __ R251 R255g262B 1200 Q213 T 43k IW 4 87k g252 R253 ISVS R252 B87 2 Ik 984 ISV ISVS Q362B C s R 3 3k _ R35I _...

Page 477: ...Figure 7 30 A26 Control Logic circuit board...

Page 478: ...A26 CONTROL LOGIC BOARD Shown on diags 21 22 23 24 25...

Page 479: ...DIGI fIZ R CON T ROL LOGIC DIAGRAM 21...

Page 480: ...th and 10X probe Tektronix 7603 Oscilloscope 7892 Time Base 7A13 Differential Comparator and P6063A Probe A Tektronix 7A26 Dual Trace Amplifier with controls set as follows VOLTS DIV 0 1 V DISPLAY MOD...

Page 481: ...FROM JI03 _ __ rJVD V h _ y a uSyD F0 0M J104 I TC I 37 7854 I TvW10 6 6_J _ D7CSC _ 70 UWIO ncnulRe woao eus 2874 265 REV JAN 1982 OU...

Page 482: ...W SR CLK VSTB XYON ro ulazeA a U16200 12 UI620A I TO U2000 9J U310C 6 R W __ T_ 70 U300F 13 IS IG_NAL_5_0_URCES __ T I SIGNAL 50URCE I O U220 I4 un3oA 6 U2110A 4 U1430A 3 U1520A 6 U2030B 8 UHi30F I3...

Page 483: ...Figure 7 31 A26 Control Logic circuit board assemb...

Page 484: ...A26 CONTROL LOGIC BOARD Shown on diags 21 22 23 24 25...

Page 485: ...ADDRESS GENERA TC R DIAGRAM 22...

Page 486: ...m i m _ 7Bs4 __ _ _ r _ 1 _ _ r _ _ __ m ___ a o...

Page 487: ...muone_nlNUm er A2_3 _A2 R1234 WORD CLOCK o L CT U320A _ 7P_DSV q 74L574 L ______ _ _ 1 p Q Ir _3 G v RDSY _ _ a YI 0 TP200 7 w ADDRESS OUTPU7 SEE PARTS LIST FOR Static Sensitive Devi es SEMICONOUCTOR7...

Page 488: ...Figure 7 32 A26 Control Logic circuit board asse...

Page 489: ...A26 CONTROL LOGIC 80ARD Shown on dlags 21 22 23 24 25 REV JAN 1982...

Page 490: ...DIGI 12EFi CLOCK DIAGRAM 23...

Page 491: ...MHz bandwidth and 10X probe Tektronix 7603 Oscilloscope 7892 Time Base 7A13 Differential Comparator and P6063A Probe A Tektronix 7A26 Dual Trace Amplifier with controls set as follows VOLTS DIV 0 1 V...

Page 492: ...00 74LSI93 _ __ __ 3 k2224 lo ACQUIRE WORD BVS ___ _ _ FROM n Rloa r f o2223 ISV E ISV FROMJI04 L2224 3 9NH SIGNAL SOURCES SIGNAL AU CLOCK DIGITIZE OTGSC VSTB YON SOURCE U2100 7 23 U2110A 4 23 U1520A...

Page 493: ...74L5153 74L5193 SVp P 14 16 14 16 Ib _ C Np 8 8 8 COMPONENT NUMBER EXAMPLE Companen Number A23 _A_ 2 R1234 m mo I Neap e cn m m omn eer aa eoaeeaoiesie o vans a R2125 S Ik R2113 C2120 R2121 1 3k I 0...

Page 494: ...Figure 7 33 A26 Control Logic circuit board assemb...

Page 495: ...A26 CONTROL LOGIC BOARD Shown on diags 21 22 23 24 25...

Page 496: ...DMA CONTROL DIAGRAM 24...

Page 497: ...Figure 7 34 DMA Timing Diagram...

Page 498: ..._ 2k SD 5p T ____ __ 6 _ _ _ __ _ ___ _ _____ m _ 3 12 _ BUS NtUUE51 LGGIC TP200 9 UZOOC q 74L532 MEM w _ r _ U310B 74L5368 Svp i34 MEM U310G 74L5368 U210B 0 74L5 45 12 D R 0130 745174 5Vp nn 4 6 3D 3...

Page 499: ...UMBER EXAMPLE u m 3 nn 4 I U300D RIII 1 CIIO 741504 100 T 150 0230 74L575 TYPE 74L504 74L511 74520 j 741532 I 74L574 il 74 L575 74L5138 74148 745174 II 74L5369 i TP200 I _ _ SOURCE 0220 14 _ UI730A 6...

Page 500: ...ssembly i Schematic Number uDassemDly C cull Number NumDa il used Chassis mounledcomponents have na Assemby Numhel prelu see end of RepWceade Electr wl Parts Llst rv2u I7 2 C 7 C7 I c u cau C 2 L72 C...

Page 501: ......

Page 502: ...1610 1 11 1610 C3 11 U200D 1 1 1000 D2 F1 1100 D1 F 1 U1400A C3 1 U1530B 3 3 U1610A C2 12 U1610B C2 12 U1710A C3 12 U1710C D3 12 U1720 81 12 U 1820 1 12 U1830A C2 13 U2030 B E3 J3 U2220A 1 2 U2220B 1...

Page 503: ......

Page 504: ......

Page 505: ......

Page 506: ...Figure 7 36 A25 Digitizer circuit board...

Page 507: ...25 DIGITIZER BOAR D Shown on d ags 8 20 26 25...

Page 508: ...R541 F1 C2 R542 F1 D1 R546 F1 D2 R547 F1 C2 R553 C2 E3 R556 C2 E4 R557 C2 4 R558 D2 C3 R559 D2 D3 R562 3 C3 R563 3 C3 R573A D3 D3 R573B D3 D3 R573C D3 D3 R573D D3 D3 R573E D3 D3 R573F D4 D3 R573G D4...

Page 509: ...A25C553 A25C561 A25C599...

Page 510: ......

Page 511: ......

Page 512: ...Figure 7 37 A27 U circ uit board assembly...

Page 513: ...27 MPU BOA RD Shown on diags 27 28 36...

Page 514: ...3 E6 105 1 E6 108 1 C2 108 G2 C2 130 F 3 F 1 220 83 84 1410 C4 J3 R 105 D3 3 R 106 D2 3 R 301 1 82 R 302 1 82 R 303 1 2 R 304 1 C2 R 305 1 83 R 306 1 3 R 310 F 2 C4 R 310 F 3 C4 R 31 0J C2 C4 R42 D 2...

Page 515: ...267 26 RE V MA R 9...

Page 516: ...KEYBOARD INTERFACE AND SIGNATURE ANALYSIS...

Page 517: ...Figure 7 38 A27 MPU circuit board assembly...

Page 518: ...27 MPU BOA RD Shown on diags 27 28 36...

Page 519: ...MICROPROCESSOR AND CONTROL DIAGRAM 28...

Page 520: ......

Page 521: ......

Page 522: ...Figure 7 39 A31 ROM circuit board assembly...

Page 523: ...READ ONLY MEMO RY DIAG RA M 29 31 ROM BOARD Shown on diag 29...

Page 524: ......

Page 525: ......

Page 526: ...Figure 7 40 A28 RAM circuit board assembly...

Page 527: ...28 RAM B OAR D Shown on diag 30...

Page 528: ...RANDOM ACCESS MEMORY DIAGRAM 30...

Page 529: ......

Page 530: ......

Page 531: ...RANDOM ACCESS MEMORY...

Page 532: ...Figure 7 41 A29 Display circu it board...

Page 533: ...29 DIS PLAY BOARD Sh own on d ags 31 32 33 34...

Page 534: ...READOU r ACQUIRE DIAGRAM 31...

Page 535: ......

Page 536: ...READOUT ACQUIRE...

Page 537: ...Figure 7 42...

Page 538: ...CHARACTER MODE Character Mode Timing Diagram...

Page 539: ...TABLE 7 1 Setup For Waveforms 6 7 27 and 28...

Page 540: ......

Page 541: ......

Page 542: ...Figure 7 43 YT Mode Timing Diagram...

Page 543: ......

Page 544: ...Fig ure 7 44 Mode Timing Diag ram...

Page 545: ...TABLE 7 1 Setup For Waveforms 6 7 27 and 28 TABLE W2 Setup For VVe ofn mma 30 35 37 41 and 42...

Page 546: ......

Page 547: ......

Page 548: ...Figure 7 45 A29 Display circuit board...

Page 549: ...29 DIS PLAY BOARD Shown on d ags 31 32 33 34...

Page 550: ...VERTICAL DISPLAY AND CONTROL DIAGRAM 32...

Page 551: ......

Page 552: ......

Page 553: ...Figure 7 46 A29 Display circuit board...

Page 554: ...29 DISPLAY BOA RD Shown on d a gs 21 32 33 34...

Page 555: ...HORIZONTAL DISPLAY AND CONTROL DIAGRAM 33...

Page 556: ......

Page 557: ...HORIZONTAL DISPLAY AND CONTROL...

Page 558: ...Figure 7 47 A29 Display circuit board e...

Page 559: ...29 DIS PLAY BOARD Shown d ags 31 32 33 34...

Page 560: ...DISPLAY D AND AMPLI F I E R DIAG RAM 34...

Page 561: ...Figure 7 48 Display D and Amplifier Timing Diag ram...

Page 562: ......

Page 563: ...DISPL AY D AN D AMPL IF IER...

Page 564: ...Figure 7 49 A30 GPIB circuit board assembly...

Page 565: ...30 GPIB BOARD Shown on diag 35...

Page 566: ......

Page 567: ......

Page 568: ...Figure 7 50 A32 Rear Panel Connector circuit board assembly...

Page 569: ...Figure 7 51 A36 Calculator Keyboard circuit board assembly Figure 7 52 A3 Front Panel Keyboard Electronics circuit board assembly...

Page 570: ...3 FR O N T PA NEL KE Y B OA R D ELECT R O N ICS BOA R D Shown on D ags 18 36 36 CALCULATO R KEYBOARD BOA RD S hown on d ags 19 36 32 REAR CONNECTOR Shown on diag 36...

Page 571: ......

Page 572: ...REAR PANEL CONNECTOR...

Page 573: ...Figure 7 53 A8 Mother circuit board...

Page 574: ...8 MOT HER B OAR D Shown on d ag 37...

Page 575: ...MOTHER BOARD DIAGRAM 37...

Page 576: ......

Page 577: ...MOTHER BOARD...

Page 578: ...Figure 7 54 A7 Regulator circuit board assembly...

Page 579: ...7 AU X RE GULATOR BOARD Shown diag 38...

Page 580: ...AUX REGULATOR DIAGRAM 38...

Page 581: ......

Page 582: ......

Page 583: ...AUXILIARY REGULATOR...

Page 584: ...iO UBLESHOOTING CHANT INSTRUCTIONS...

Page 585: ...Figure 7 55 7854 Troubleshooting Chart...

Page 586: ......

Page 587: ...22 L OW VOLTAGE REGULATOR BOA R D 12 CON TROL RE CTIF IER BOA R D Figure 7 56...

Page 588: ...Adjustment Locations...

Page 589: ...Figure 7 57 Test Point and Adjustment...

Page 590: ...Adjustment Locatio ns...

Page 591: ...Figure 7 58 Test Point and Adjustment...

Page 592: ...Adjustment Locations C...

Page 593: ...Figure 7 59 Test Point and Adjustment...

Page 594: ...Adjustment Locations D...

Page 595: ...Figure 7 60 Test Point and Adjustment...

Page 596: ...Adjustme nt Locations...

Page 597: ...Figure 7 61 Test Point and Adjustment...

Page 598: ...Adjustment Locations F...

Page 599: ...Figure 7 62 Test Point and Adjustment...

Page 600: ...Adjustment Locations G...

Page 601: ...Figure 7 63 Test Point and Adjustment...

Page 602: ...Adjustment Locations...

Page 603: ......

Page 604: ......

Page 605: ......

Page 606: ......

Page 607: ......

Page 608: ......

Page 609: ......

Page 610: ......

Page 611: ......

Page 612: ......

Page 613: ......

Page 614: ......

Page 615: ......

Page 616: ......

Page 617: ...OPTION 0D OPTION 02...

Page 618: ...OPTION 2D...

Page 619: ......

Page 620: ......

Page 621: ...REPLACEABLE MECHANICAL PARTS ABBREVIATIONS 8...

Page 622: ...Y 10802 28520 MFG CO 147 MICHIGAN AVE KENILWORTH NJ 07033 30817 INSTRUMENT SPECIALTIES COMPANY INC LITTLE FALLS NJ 07424 _ 49671 RCA CORPORATION 30 ROCKEFELLER PLAZ A NEW YORK NY 10020 52792 THORGREN...

Page 623: ...4 CLAMP RIM CLENC SPG STL CD PL 80009 386 1151 00 19 348 0073 01 2 SPT PIVOT FLIP LEFT FRONT AND RIGHT REAR 80009 348 0073 01 ATTACHING PARTS 20 210 0457 00 4 NUT PL ASSEM WA 6 32 0 312 INCH STL 8338...

Page 624: ...78 0614 01 20 344 0179 00 2 CLIP REFL RTNG PLASTIC 80009 344 0179 00 21 211 0162 00 2 SCREW MACHINE 2 56 0 188 INCH SCH SST OBD 22 1 CKT BOARD ASSY FRONT L 5 3 REPL TA CH ING PARTS 23 211 0008 00 4 SC...

Page 625: ...LD GSKT ELEK MESH TYPE RING 5 25 ID 07700 30 90042 66 175 2263 00 1 CA ASSY SP ELEC 40 0 INCH LONG 80009 175 2263 00 67 348 0442 00 2 GROMMET PLASTI C BLACK ROUND 0 375 ID 28520 SB 500 6 68 333 2480 0...

Page 626: ...PNH STL 83385 OBD 102 343 0858 00 1 CLAMP CABLE PLASTIC 06383 FCM2 S6 D14 ATTACHING PARTS 103 210 0457 00 2 NUT PL ASS M WA 6 32 0 312 INCH STL 83385 OBD 104 211 0541 00 2 SCREW MACHINE 6 32 0 25 100...

Page 627: ...4 210 0599 00 2 NUT SLEEVE 4 40 0 391 INCH LONG 80009 210 0599 00 ATTAC HING PART S 25 129 0260 00 2 POST ELEC MECH 0 255 HEX 0 500 INCH L 80009 129 0260 00 26 210 0406 00 4 NUT PLAIN HEX 4 40 0 188 I...

Page 628: ...012 72 131 1426 00 1 CONTACT SET ELE R ANG1 E 0 250L STRIP OF 36 22526 65524 136 73 214 0579 00 3 S POINT BRS CD PL 80009 214 0579 00 74 385 0124 00 2 SPACER POST 2 0 L W 6 32 THD END AL 80009 385 012...

Page 629: ...57 00 4 NUT PL ASSEM WA 6 32 0 312 INCH STL 83385 OBD 103 211 0507 00 1 SCREW MACHINE 6 32 0 312 INCH PNH STL 83385 OBD 104 ____ 1 CKT BOARD ASSY MOTHER SEE 8 REPL 105 131 0608 00 98 TERMINAL PIN 0 36...

Page 630: ...o o ATTACHING PARTS y u o o 5x6 m c nL A mm wu 4 4o x o c5 ozL CD PL 83385 na 2o z z oooo oo z u w a uz u 4 o X 0 25 zw vwu ozL u o 5 ou z z 4 cue4 oo HEAT SINK ELEC AUXILIARY REGULATOR 80009 214 2824...

Page 631: ...200 0945 01 010100 031169 1 COVER HALF XSTR DUAL 70 18 W 2 56 D 80009 200 0945 01 200 0945 01 031170 3 COVER HALF XSTR DUAL 18 W 2 56 THD 80009 200 0945 01 ATTACHING PART S 59 211 0001 00 010100 03116...

Page 632: ...Auo wA 6 2 z 0 312 zm xrL u 3o5 oan 1 oz z z omr ou 5 uw mA azm m 3 u 3 u zm m xrL 83385 _ o4 z36 o 4x oo z o r pL IN mL r o PIN w L A x uonov 3 or oo 105 343 0254 00 1 Lp mL r m ne 80009 34 3 0254 0...

Page 633: ...131 0707 00 88 CONNECTOR TERM 22 26 AWG BRS CU BE GOLD 22526 47439 150 204 0675 00 6 CONN BODY PLUG 1 LKG CLIP 0 025 SQ PIN 00779 87175 2 151 214 2629 00 4 PIN ACTUATOR 80009 214 2629 00 152 131 1810...

Page 634: ...TPG THD FOR 10 32 0 75 INCH FILH STL 83385 OBD 21 366 1480 02 1 PUSH BUTTON GRAY 80009 366 1480 02 22 386 3440 00 2 LT C DC ILL 3 BUTTON 7 5 MM SPAC ING 80009 386 3440 00 23 200 0935 00 2 BASE LAMPHO...

Page 635: ...56 0 50 INCH PNH 83385 OBD 65 210 0850 00 1 WASHER FLAT 0 093 ID 0 281 INCH OD 12327 OBD 66 1 SWITCH PUSH SEE S10 REPL ATTACHING PART S 67 211 0008 00 2 SCREW MACHINE 4 40 0 25 INCH PNH STL 83385 OBD...

Page 636: ...D ASSY LOGIC SEE 14 REPL 109 214 0579 00 12 TERM TEST S CD PL 80009 214 0579 00 110 136 0241 00 4 SOCKET PLUG 10 CONTACT ROUND 71785 133 99 12 064 111 131 1003 00 4 CONN RCPT ELEC CKT BD 3 PRONG 80009...

Page 637: ...1 50 151 210 0054 00 4 WASHER LOCK SPLIT 0 118 ID 0 212 O D STL 83385 OBD 152 131 1003 00 10 CONN R CPT ELEC CKT BD 3 PRONG 80009 131 1003 00 153 136 0252 04 10 SOCKET PIN TERM U W 0 016 0 018 DIA PIN...

Page 638: ...175 3986 00 175 3987 00 1 CABLE ASSY RF 50 OHM COAX 9 0 L 9 1 80009 175 3987 00 175 3988 00 1 CABLE ASSY RF 50 OHM COAX 9 0 L 9 2 80009 175 3988 00 175 3989 00 1 CABLE ASSY RF 50 OHM COAX 9 0 L 9 3 80...

Page 639: ...ISTOR 49671 DF137A 20 211 0101 00 1 SCREW MACHINE 4 40 0 25 100 DEG FLH STL 83385 OBD 21 342 0202 00 2 INSULATOR PLATE TRANSISTOR 01295 10 21 023 106 22 1 TRANSISTOR SEE Q122 REPL ATTACHING PARTS 23 2...

Page 640: ...40 0 375 STL CD PL 83385 OBD 65 386 0786 00 1 INSULATOR PLATE XSTR MICA 80009 386 0786 00 66 214 2731 00 1 HEAT SINK DIODE TO 3 AL 80009 214 2731 00 67 136 0254 01 2 SOCKET PIN TERM U W 0 031 0 04 DI...

Page 641: ...RTS 106 211 0034 00 2 SCREW MACHINE 2 56 0 50 INCH PNH 83385 OBD 107 210 0053 00 2 WASHER LOCK INTL 0 092 ID 0 175 OD STL 83385 OBD 108 210 1008 00 2 WASHER FLAT 0 09 ID 0 188 OD BRS 12360 OBD 109 342...

Page 642: ...SW TCH SLIDE SEE S12 REPL TACHING PARTS 150 210 0586 00 2 NUT PL ASSEM WA 4 40 0 25 57L CD PL 83385 OBD 151 211 0097 00 2 SCREW MAC TNE 4 40 0 312 INCH PNH STL 83385 OBD _ _ _ _ _ _ 152 200 2264 00 1...

Page 643: ...PRONG 80009 131 1003 00 181 131 0955 01 3 CONN R CPT ELE C BNC FEMALE MODIFIED 80009 131 0955 01 182 131 1315 01 2 CONN RCPT ELEC BNC FEMALE 24931 28JR 306 1 ATTACHING PART S 183 220 0551 00 2 L 9 0 4...

Page 644: ...0590 00 24 CONTACT ELEC 0 71 INCH LONG 22526 47351 20 129 0285 00 2 POST ELEC MECH 0 281 L 0 188 HEX 5 80009 129 0285 00 21 366 1770 00 11 PUSH BUTTON GY 0 225 0 4 0 17 OOOFU OBD 366 1783 00 1 PUSH B...

Page 645: ...3 PRONG 80009 131 1003 00 6 136 0252 04 20 SOCK ET PIN T RM U W 0 016 0 018 DIA PINS 22526 75060 007 OPTION 02D 7 1 CKT BOARD ASSY 4K SEE 28 REPL 8 214 1337 00 2 PIN SPRING 0 10 OD 0 25 INCH L STL 800...

Page 646: ...ELEC 4 285 INCH LONG 80009 348 0332 00 11 348 0333 00 4 SHLD GS KT EL EC 4 8 INCH LONG 80009 348 0333 00 12 348 0336 00 4 SHLD GSKT ELEC 9 625 INCH LONG 80009 348 0336 00 13 214 0603 02 4 PIN ASSY SE...

Page 647: ...26 OBD OPTION 1 EUROPEAN 4 161 0066 10 1 CABLE ASSY PWR 3 0 75MM SQ 240V 96 0 L 80126 OBD OPTION 2 UNITED KINGDOM 5 161 0066 11 1 CABLE ASSY PWR 3 0 75MM 240V 96 0 L 80126 OBD OPTION 3 AUSTRALIAN 6 16...

Page 648: ...on V SECTION D Give complete desc ription of t he system config u ration on wh ic h the problem occurred Include related periph erals interfaces options special switch and or stra p settings and ope r...

Page 649: ...785 SOFTWARE FIRMWARE PERFORMANCE REPORT...

Page 650: ...MANUAL CHANGE INFORMATION...

Page 651: ...EFF SN 030690 REPLACEABLE ELECTRICAL PARTS LIST AND SCHMATIC CHANGES ADD A27 R1210 315 0472 00 RES FXD CMPSN 4 7K 5 0 25W Mic roprocessor and Control Partia l...

Page 652: ...SCHEMAT I C CHANGES 26 670 5846 03 CKT BOARD ASSY CONTROL LOG IC A26C1330 281 0763 00 CAP F CD CER DI 47 PF 10 100V C1330 is located on the CONTROL LOGIC circu it board assemb ly and is shown on diagr...

Page 653: ...isplay position as necessary Page 4 69 Step E3 part q CHANGE TO READ q ADJUST If necessary compromise the setting of the HF Adj capacitor C32 and for SN 031170 up HF Adj resistor R32 for optimum 1 ns...

Page 654: ...00 RES FXD CMP SN 750 5 0 25W 17R55 315 0332 00 RES FXD CMPSN 3 3 K 5 0 25W A17R56 315 0822 00 RES FXD CMPSN 8 2 K 5 0 25W A17 R57 315 0911 00 RE S FXD CMPSN 910 5 0 25W DIAGRAM 11 HORIZONTAL AMPLIFI...

Page 655: ...LIST AND SCHEMATIC CHANGES CHANGE TO 23 670 6259 01 CKr BOARD 55 S INVERT ER ADD A23CR33 152 0400 00 SEMICOND DEVICE S ILICON 400V lA A23CR39 152 0400 00 S F MICOND DEVICE SILICON 400V lA DIAGRAM 15...

Page 656: ...LM 60 0 1 0 125W A25R92 321 0239 07 RES FXD FIIM 3 O I K 0 1 0 125W A25R289 321 269 0 RES FXD FIIM 6 19K 1 25 A25R292 321 1618 02 RES FXD FILM 6 5K 0 5 0 125W REMOVE A15C84 281 0788 00 CAP FXD CER DI...

Page 657: ...VERTICAL PICKOFF AMPLIFIER Partial...

Page 658: ...DI 1 5PF 10 50V A18C177 283 0160 00 CAP FXD CER DI 1 5PF 10 50V A18R12 317 0101 00 RES FXD CMPSN 100 5 0 125W A18R32 317 0101 00 RES FXD CMPSN 100 5 0 125W A18 R147 317 0101 00 RES FXD CMPSN 100 5 0 1...

Page 659: ...20 50V A28C440 283 0421 00 CAP FXD CER D1 0 1 UF 80 20 50V A28C460 283 0421 00 CAP FXD CER DI O l UF 80 20 50V 28C510 283 0421 00 CAP FXD CER DI 0 1 UF 80 20 50V 28C530 283 0421 00 CAP FXD CER DI O lU...

Page 660: ...DI 27OPF 5 lOOOV NOM VALU1 ZU Al2C 8 283 oo84 oo CAP FXD CER DI 27OPY 5 1OO0V NOM VALUE SEW 0 277 283 0084 oo CAP FXD UER DI 2701 F 5 100OV NOIi VALU i SEL c1278 283 oo84 oo CAP PXD CER DI 270PP 5 t l...

Page 661: ...6CHla C CH Ai4G s DIAGRAM 8 V PT C L ICKCFF MPLIFIE R Partial orrection to the VOLTAGE CURRENT R GULj TOR circuit...

Page 662: ...1 R202 R203 R204 R205 R210 R301 R302 R303 wi th an 18 OHM resi stor network 307 862 RES D 9 8 OHM 2 0 15W EACH ADD A30U150 156 0388 03 MICROCKT DGTL DUAL D 74LS74 A30U230 156 0482 02 MICROCKT GTL QUAD...

Page 663: ...ullo MC3448A Digitally signed by http www aa4df com...

Page 664: ...iagram page Figure 7 18 A20 High Voltage circuit board assembly and its parts locator table now apply to SN 042532 through 073998 Schematic loca tions remain the same 7904 Add the following diagram an...

Page 665: ......

Page 666: ...HIGH VOLTAGt ROWER SUPPLY AND CRT DIAGRAM...

Page 667: ...CN BOARD SS C LCUL Q R ELECTRONICS CKT BOARD SS T UCUL OR ELECTRONICS SEE 30REPU...

Page 668: ...TIAL 36 ASSY parts locator table Change U220A U220B U220D U220E and U220F to U202A U202B U202D U202E and U202F Calculator Keyboard Change U220A to U202A location G2 Change U220B to U202B location 1 Ch...

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Tektronix 7854, Instruction Manual

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