Tektronix 315D Series Instruction Manual Download

Page: 1 / 45

CATHODE-RAY OSCILLOSCOPE

TYPE 315D

SERIAL N U M B E R _______________

INSTRUCTION

MANUAL

MANUFACTURERS OF CATHODE-RAY A N D VIDEO TEST IN ST R UM E N T S

Sunset Highway an d Barnes Road • P. O. Box 831 • Portland 7, O regon, U. S. A.

Phone: CYpress 2-2611 • Cables: Tektronix

Summary of Contents for 315D Series

Page 1: ...E TYPE 315D SERIAL N U M B ER _______________ INSTRUCTION MANUAL MANUFACTURERS OF CATHODE RAY AND VIDEO TEST INSTRUMENTS Sunset Highway and Barnes Road P O Box 831 Portland 7 Oregon U S A Phone CYpress 2 2611 Cables Tektronix ...

Page 2: ...itude point on the triggering waveform Time Base Twenty four fixed times per division between 0 1 microsecond and 5 seconds per division fit grati cule divisions for direct reading of time Continuously variable 10 to 1 sweep time control also available Magnifies time base to right and left of center by factor of five times Portion of trace appearing at cen ter is made five times as wide Direct Cou...

Page 3: ...vision to 1 second per division CALIBRATOR TRIGGER SELECTOR STABILITY Red label red knob TRIGGER AMPLITUDE DISCRIMI NATOR POWER ON CAL OUT EXT TRIGGER AC Binding Post DC Binding Post GATE SAWTOOTH GND Two position switch turns time base magnifier on in clockwise po sition returns time base to normal in counterclockwise position Five position switch selects four fixed peak to peak squarewave voltag...

Page 4: ... the three steps 1 2 or 5 Each division of the graticule then cor responds to a voltage which can be determined directly by multiplying the AMPLITUDE and the MULTI PLIER scale readings In the most counter clockwise position of the MULTIPLIER selector a continuously variable gain is provided over a range of 10 to 1 marked in red In this selector position varying the red knob mounte coaxially with t...

Page 5: ...service for the first time 1 Set the panel controls as follows POWER OFF VERTICAL AMPLIFIER MULTIPLIER 2 VERTICAL AMPLIFIER AMPLITUDE DC 0 1 VOLTS DIVISION FOCUS CENTER INTENSITY COUNTERCLOCKWISE SCALE ILLUM CENTER HORIZ POSITION CENTER VERT POSITION CENTER TIME BASE MULTIPLIER 1 TIME BASE RANGE 1 MILLISEC CALIBRATOR 1VOLT TRIGGER SELECTOR SLOW RISE INT STABILITY COUNTERCLOCKWISE TRIGGER AMPLITUDE...

Page 6: ...ut pentode section Since the circuit thus becomes a cathode coupled amplifier the amplitude of the out put triggers is dependent on the differentiated rise 01 the triggering waveform For slow rising waveforms therefore the output trigger will be too small to trip the time base generator The point of transition at which better triggering will result from one or the other of the switch positions is ...

Page 7: ... junc tion of the plate of V211A and the cathode of V211B of the cascode Eccles Jordan multivibrator A posi tive signal on the B section grid of V203 is required to trigger the multivibrator The B section of V203 is also connected to a bias control potentiometer called STABILITY which sets the dc level V204B and V205 A and B surrounding V204A com prise a hold off circuit The function of the hold o...

Page 8: ...rid of the gating cathode follower V214B is held in a positive direction by the right hand multivibrator and the grid is at 3 volts This is well within the class A region of the Miller tube V220 where the plate voltage is directly proportional to the grid voltage The relationship of 50 volts plate to 3 volts grid voltage is therefore determined by the grid to plate relationship of the Miller tube ...

Page 9: ...e follower voltage regulator whose grid volt age is obtained from potentiometer R70 labeled VERT POSITION connected between ground and 100 volts R65 and R66 limit the positioning range R90 a part of the coupling between cathodes of V10 V ll and V12 V13 is a screwdriver adjustable resistor whose shaft is mounted coaxially with the AMPLITUDE control knob This adjustment per mits the gain of the ampl...

Page 10: ... for 234 volt operation Four selenium full wave bridge rectifiers each sup plied with ac from a separate section of the trans former secondary provide dc to four electronic volt age regulators from which are obtained the regulated voltages of 150 volts 100 volts 225 volts and 350 volts In addition to these four regulated volt ages two unregulated voltage sources are provided one at a nominal 330 v...

Page 11: ... R465 bypassing the series regulator tube increases the current available at the regulated bus C461 increases the regulator ac gain to reduce ripple R412 a front panel control labeled SCALE ILLUM is a variable resistor in series with the graticule illumi nating lights which permits the brightness of the graticule illumination to be varied H igh Voltage and Cathode Ray Tube Circuits Accelerating vo...

Page 12: ... pulse This arrangement provides dc coupling of the unblanking waveform to the con trol grid thereby making it possible to use as slow a sweep as desired R914 and C902 improve the rise time of the pulse appearing at the control grid The astigmatism control labeled ASTIG on the front panel is a potentiometer R920 connected be tween regulated 225 volts and regulated 100 volts An external cathode con...

Page 13: ...ers are approved for use in dish washers cleaning tatfks or filter service company equipment Following is a partial alphabetical list of cleaners already tested and approved by Research Products Corporation CLEANER Calgonite K O L Oakite Composition No 63 Pan Dandy Super Soilax Wyandotte Keego MAKER Calgon Inc DuBois Company Oakite Products Inc Economics Lab Inc Economics Lab Inc Wyandotte Chem Co...

Page 14: ...ed on the left side of the chassis Removal of the Case Set the oscilloscope face downward on a padded flat surface turn the two fasteners on the back ap proximately turn to the left and lift off the case The power cord is not removable so it must be fed through the hole as the cabinet is removed CAUTION Voltages high enough to be dangerous are present in this instrument Since much maintenance must...

Page 15: ...settings Vertical Amplifier NOTE A warm up period of approximatel 15 minutes to stabilize the characteristic should precede adjustments of the vertica amplifier Also best results will be obtained if the adjustments are made in the following order Amplifier Gain Adjustment Set the AMPLITUDE selector switch to the dc position 1 VOLT DIV Set the MULTIPLIER to 1 set the CALIBRATOR to 1 Connect a lead ...

Page 16: ...e place the tip of the probe in CAL OUT Set AMPLITUDE to 1 VOLT DIV MULTIPLIER on 2 and set the CALIBRATOR on 10 Adjust C101 located on the probe body C2 Adjust 6 Set AMPLITUDE to 1 VOLT DIV MULTIPLIER on 2 Set CALIBRATOR to 100 volts Adjust C2 located on the side of AMPLITUDE switch C5 Adjust 7 Set AMPLITUDE to 10 VOLTS DIV MULTIPLIER on 1 with the CALIBRATOR at 100 volts Adjust C5 located on the...

Page 17: ...e follow ing methods of adjustment will give satis factory results Delay Network Test Signal 1 Apply a 100 kc square wave to the input of the oscilloscope with the AMPLITUDE set on 1 VOLTS DIV Set the TIME BASE to 1 MICRO SECOND DIVISION 2 Adjust the DELAY NETWORK trimmers C501 to C522 for the smallest ripple or irregularity on the first 5 microsecond of the square wave The position of the irregul...

Page 18: ...y If the trace disappears adjust the TRIGGER AMPLITUDE DISCRIMINATOR until a dim trace is displayed The time base is now triggered by the ac line fre quency Connect the 10X probe cable to the INPUT and touch the probe to the cathode of V203 pin 3 and 8 This lead appears at the terminal of the 18 k 2 watt resistor R232 located on the terminal board just back of the TRIGGER SELECTOR switch on the un...

Page 19: ...the ON position clockwise rotation The HORIZ POSITION should be set so that the center 20 per cent of the display is on the screen of the tube Adjust MAG GAINV R314 screw driver adjustment on side of sweep chassis until 2 time marks correspond with 10 scale divisions A more accurate adjustment may be obtained if the generator is set to 100 MICROSECONDS Then 20 time marks will occupy 10 divisions T...

Page 20: ...E set to 1 MICROSEC DIVI SION set the MULTIPLIER to 5X and set the marker generator for five microsecond marks Ob serve the linearity of the sweep Readjust C290 if necessary so that each time mark has the same spac ing without regard to timing If much adjustment is necessary step 12 should be repeated NOTE With the RANGE set to 1 MICRO SEC DIVISION the timing accuracy should be checked at the X2 a...

Page 21: ...aaawaaaaaaaaaaaaBr aaaaaaaaaaaaaaaaa a TYPE 315 C A TH O D E R A Y OSCILLOSCOPE U H M tH M I I I a DIAGRAMS Front Panel Trigger Selector and Shaper Time Base Range and Multiplier Switch Detail Preamp Vertical Amplifier Calibrator Power Supply High Voltage and CRT C ircuits Page 1 Page 2 Page 2 Page 2 Page 3 Page 4 Page 5 Page 5 Page 5 n i l H H I M taaaaaaaaaa M IN 3 1 5 2 iBaaBaaaaaaaaaBaaL i a ...

Page 22: ...THODE RAY OSCILLOSCOPE TIME BASE MULTIPLIER 5X MAGNIFIER RANGE 5 2 SERIAL TIME DIVISION CALIBRATOR VOITS PEAK TO PEAK TRIGGER AMPLITUDE DISCRIMINATOR 1 0 0 4 1 0 CAL OUT G N D TEKTRONIX INC PORTLAND O REG O N U S A ...

Page 23: ...500 v 20 C603 8 nnf Cer Fixed 500 v 25 C604 47 M Cer Fixed 500 v 20 R601 100 k V w Fixed Resistors Comp 10 R602 R603 Unassigned 820 k Vz W Fixed Comp 10 R604 100 k Vz w Fixed Comp 10 R605 820 k Vz w Fixed Comp 10 R610 100 k 1w Fixed Comp 10 R611 56 k Vz w Fixed Comp 10 R612 50 k 2 w Var Comp 20 CAL ADJ R620 18 k Vz w Fixed Prec 1 R621 1 8 k Vz w Fixed Prec 1 R622 180 ft Vi W Fixed Prec 1 R623 20 0...

Page 24: ... 225V 225V R603 820K TYPE 315 CATHODE RAY OSCILLOSCOPE CALIBRATOR ...

Page 25: ...80A 1M f PMC Fixed 400 v Selected C280B lMf PT Fixed 400 v Selected r Timing Series C280C 01 if PT Fixed 400 v Selected I See Text C280D 001 if PT Fixed 600 v Selected C280E 7 45 i if Cer Var 500 v C280F 82 fifif Cer Fixed 500 v 20 C280G 3 12 h jl Cer Var 500 v C282 01 fii PT Fixed 400 v 20 R282A 183 k A w Fixed Resistors Prec R282B 60 k A w Fixed Prec i R282C 56 5 k A w Fixed Prec i R282D 1 84 me...

Page 26: ...TYPE 315 CATHODE RAY OSCILLOSCOPE ...

Page 27: ... UP 3 1 6 53 TIME BASE RANGE 8 MULTIPLIER SWITCH DETAIL Figure 3 SWITCHING DETAIL ...

Page 28: ...1 pi PT Fixed 400 v 20 C290 1 5 7 ppi Cer Var 500 v C291 4 7 ppi Cer Fixed 500 v 1 ppi C303 5 5 ppi Poly Var 500 v C325 01 pi PT Fixed 600 v 20 C326 01 pi PT Fixed 400 v 20 C327 M p i PT Fixed 400 v 20 C328 01 p i PT Fixed 400 v 20 R230 39 k Yz w Fixed Resistors Comp 10 R231 100 k 2 w Var Comp 20 STABILITY R232 18 k 2 w Fixed Comp 10 R233 2 2 k y2 w Fixed Comp 10 R234 470 k Yz W Fixed Comp 10 R235...

Page 29: ...d Comp 10 R285 10 k 1w Fixed Comp 10 R286 10 k 2 w Var WW 20 SW EEP CAL R287 8 2 k 2 W Fixed Comp 10 R288 20 k 2 w Var Comp 20 HORIZ POSITION R289 1 75 meg k2 W Fixed Prec 1 R290 2 44 meg x z w Fixed Prec 1 R291 3 3 k l Vz W Fixed Comp 10 R300 200 k 2 W Fixed Prec 1 R301 47 k 1w Fixed Comp 10 R302 47 k 1w Fixed Comp 10 R303 700 k Vz w Fixed Prec 1 R304 433 k 2 w Fixed Prec 1 R305 68 k lv Fixed Com...

Page 30: ...stant Current Tube V213B J 12AT7 Multivibrator Reverting Cathode Follower V214A 6U8 Gate Output Cathode Follower V214B H6U8 Sweep Clamping Cathode Follower V215A J46AL5 DC Feedback Diode V21SB 6AL5 Sweep Clamping Diode V220 6AK6 Sweep Generator V221A 546BQ7 Sweep Out Cathode Follower V221B 546BQ7 Sweep Position Cathode Follower V222A 6BQ7 Driver Cathode Follower V222B y26BQ7 Sawtooth Out Cathode F...

Page 31: ...TIME BASE Figure ...

Page 32: ... Fixed C13 01 fif Cer Fixed C16 02 Cer Fixed C17 01 L tf Cer Fixed C25 01 Ilf Cer Fixed C26 01 Ilf Cer Fixed C27 01 iif Cer Fixed C101 3 12 fi if Cer Var R1 900 k 1w Fixed R2 111 k Vz w Fixed R3 990 k 1w Fixed R4 10 1 k Vz w Fixed R5 1meg Yz w Fixed R6 Unassigned R7 1 meg Vz w Fixed R10 100 O Vz w Fixed R ll 47 0 Vz w Fixed R12 47 0 Vz w Fixed R13 22 k 2 w Fixed R14 27 k 2 w Fixed R15 200 0 2 w Va...

Page 33: ... 0 Vz w Fixed R98 100 O 2 w Var R101 9 meg w Fixed Resistors Cont Prec 1 Comp 5 Comp 10 Comp 10 Comp 10 Comp 10 Comp 10 Comp 10 Comp 10 Comp 10 Comp 20 HUM BALANCE Comp 10 Vaccum Tubes VI 6BQ7 Input Cathode Follower V2A 46BQ 7 Amplifier V2B J 6BQ7 Output Cathode Follower Inductors LI 2 2 3 9 fih Var CV222 L2 19 35 ih Var CV193 Switches SW1 2 Wafer 7 Position Rotary AMPLITUDE TYPE 315 PREAMP PAGE 2...

Page 34: ... 1 0 0 V ON p o w en SUPPLY IWPUT TYPE 315 C A T H O D E R A Y OSCILLOSCOPE PR EAMP i is sa r H Figure 5 ...

Page 35: ...Fixed 450 v 20 50 C441 O lp i PT Fixed 400 v 20 C460 2x40 pi EMC Fixed 250 v 20 50 C461 01 pi PT Fixed 400 v 20 Resistors R401 39 k A w Fixed Comp 10 R402 47 k Vz w Fixed Comp 10 R403 12 k Vz w Fixed Comp 10 R404 1 meg Vz w Fixed Comp 10 R405 1 k Vz w Fixed Comp 10 R406 33 k Vz w Fixed Comp 10 R407 1meg Vz w Fixed Comp 10 R408 2k 20 w Fixed WW 5 R409 220 k y2 w Fixed Comp 10 R410 100 k 2 w Var Com...

Page 36: ...ches SW401 Single Pole Single Throw Toggle Vacuum Tubes V401 5651 Voltage Reference V402 6AU6 DC Amplifier 150v V403 12B4 Series Regulator 150v V404 12B4 Series Regulator 150v V421 6AU6 DC Amplifier f 100v V422 6AS5 Series Regulator 100v V441 6AU6 DC Amplifier 225v V442A 546080 Series Regulator 225v V442B 546080 Series Regulator 4 350v V461 6AU6 DC Amplifier 350v POW ER TYPE 315 POWER SUPPLY PAGE ...

Page 37: ...TYPE 315 CATHODE RAY OSCILLOSCOPE POWER SUPPLY Figure 8 POWER SUPPLY ...

Page 38: ... 20 C501 1 5 7 w f Cer Delay Line Capacitors Var 500 v CS02A E 5 25 f Cer Var 500 v C511A F 5 25 M pf Cer Var 500 v C521A F 5 25 m ii Cer Var 500 v C522 1 5 7 Cer Var 500 v L3 4 8 8 5 pih Var Inductors CV482 L4 28 50 ih Var CV283 L5 28 50 m h Var CV283 L6 50 96 M h Var CV513 L7 50 96 ih Var CV513 R34 100 k Vz w Fixed Resistors Comp 10 R35 47 0 Vz W Fixed Comp 10 R40 2 2 k 1w Fixed Comp 10 R41 47 0...

Page 39: ...mp 10 R82 47 0 Vz W Fixed Comp 10 R83 750 0 10 w Fixed WW 5 R84 2 5 k 10 w Fixed WW non inductive 5 R85 6 8 k 3 w Fixed Comp 10 R90 100 0 2 w Var Comp 20 SENSITIVITY ADJUST R91 10 0 3 w Fixed Comp 10 R92 27 0 w Fixed Comp 10 R93 27 0 W Fixed Comp 10 R94 10 0 3 2 w Fixed Comp 10 R95 47 0 3 2W Fixed Comp 10 R521 1 1 k 1w Fixed Prec 1 Switches SW2 1Wafer 4 Position Rotary M ULTIPLIER Vacuum Tubes V3 ...

Page 40: ...IB C5IIC J L c SIID _ C5IIE _ c 5 i p _ CB2IA _ L 5 2 5 5 2 5 5 2 5 5 2 5 5 2 5 5 2 5 5 2 5 5 2 5 6 2 5 5 2 5 5 2 5 5 25 T aswpj DELAY NETWORK IOOV OM POWER SUPPLY 2 2 5 V 225 V 2 2 5 V TY P E 315 C A T H O D E R A Y 0 5 C IL L 0 S C OPE VERTICAL AMPLIFIER Figure 6 VERTICAL ...

Page 41: ...omp 10 R201 1meg l A w Fixed Comp 10 R202 10k 1 10 w Var Comp 20 R203 50 k V 2 W Fixed Prec 1 R204 100 k V 2 W Fixed Prec 1 R208 4 7 k 1w Fixed Comp 10 R209 4 7 k 1w Fixed Comp 10 R210 18 k 2 w Fixed Comp 10 R211 47 k V 2 W Fixed Comp 10 R212 100 k 2 w Var Comp 20 TRIGGER AMPLITUDE DISCRIMINATOR R215 100 k V 2 w Fixed Comp 10 R216 560 k l A w Fixed Comp 10 R217 390 k w Fixed Comp 10 R220 2 2 k Vi ...

Page 42: ...s w e o ic s w e o io s w e o u s w e o ie s w e o ie V h s e l e c t o r A 1 A A TRIGGER ELECTOR TYPE 315 CATHODE RAY OSCILLOSCOPE SHAPER F i g u r e 2 ...

Page 43: ... 015 if PT Fixed 3000 v 20 C902 015 if PT Fixed 3000 v 20 R802 1meg l z w Fixed Resistors Comp 10 R803 47 k 2 w Fixed Comp 10 R804 1 5 k l A w Fixed Comp 10 R805 47 k V2 W Fixed Comp 10 R816 1 2 meg V2 W Fixed Comp 10 R817 2 meg 2 w Var Comp 20 H V ADJUST R901 27 k V2 W Fixed Comp 10 R902 1 5 meg l A w Fixed Comp 10 R903 2 meg V2 W Var Comp 20 FOCUS R904 3 9 meg 2 w Fixed Comp 10 R905 1 meg V2 w F...

Page 44: ... 350 V 330V 350V UNRE6 C802 001 TYPE 315 CATHODE RAY OSCILLOSCOPE ...

Page 45: ... 350 V HIGH VOLTAGE AND CRT CIRCUITS ...

Search results

Summary of Contents for 315D Series

Reviews:

Related manuals for 315D Series

Brands by name

Popular brands

Tektronix 315D Series, Instruction Manual

Search results

Summary of Contents for 315D Series

Reviews:

Related manuals for 315D Series

Brands by name

Popular brands