Tektronix DC508 Instruction Manual Download | Manualshive

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Summary of Contents for DC508

Page 1: ...STFIUCTION IVIANUAL Tektronix lnc P O Box 500 Beaverton Oregon 97077 070 2460 0 Serial Number Fnsl P inrinO MAF 1978 5 1 GHz OUNTER c c 0 a Scan by vintageTEK Your donations help support the museum vi...

Page 2: ...TY This Teklronix producl is warranled againsl deleclive materialsand wo manship under normal use for a period o one year rom dale of initial shipmenl Tektronix will repair or replace al its option lh...

Page 3: ...inary Procedure Preliminary Control Settings The following servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing other than that containe...

Page 4: ...uitry Leading Zero Blanking Display Timer Power Supplies Prescaler Un blank ing Section 7 OPTIONS OPTION 1 OPTION 7 Section 8 Section 9 Section l0 7 1 lntroduction lnstallation Sweeping Mode Operation...

Page 5: ...Refer to the manual Do Not Operale in an Explosive Atmosphere To avoid explosion do not operate th is instrument in an area where flammable gases or fumes are present Such operation could cause an exp...

Page 6: ...flOE a I I I ITPUT 7i r000MH 508 VqMS 2V lxl I A 25ot Ypp 300V VPl 400v stt MAiluAl DC 508 Th6 DC 5Og 1 cH2 Counr r 2460 1 ovtntLow MH kll GAlt rl f ts0tt uU I Xl00 xl r f trilr fl s0unct m IXPUI 1 t...

Page 7: ...ed in the lower left corner until the interconnecting iack disengages and the DC 508 slides out Conlrols and Conneclorc See Fig 1 2 for a description of lhe front panelcontrols and connectors caurror...

Page 8: ...lnslructions DC 508 Fig 1 1 Plug in module lnstsllatlon and removal POWER MODULE PLUG IN l 2464 2 Top Groove Bottom G oove Barrier 1 2 Scan by vintageTEK Your donations help support the museum vintag...

Page 9: ...hoa counlet unlL ar ln meglhgrlz TI PlJ OUT Of RAT6E I t PlrI l5 100BMH 50O V q115s 2 STAIOEY riss 0f rot RtsoLt ULT tti9 l M l lHr l0tl r2 NPUT OUT OF RAt cE lllumlnated when amplltude oa lrequency i...

Page 10: ...stated on the front panel See Fig 1 3 lor an explanation of terms and the Speciticalion section fot higher lrequency limits Dlrect lnput For input frequencies from 10 Hz to l00 l ilHz use the D IHECT...

Page 11: ...uency modulated Totalize Mode Place the RESOLUTION switch in the TOTALIZE mode Connect the events signal to be counted to the INPUT conneclor observing the same operating con ditions with respect to t...

Page 12: ...ge lnput Protection Voltage lnput OUT OF BANGE light PRESCALE INPUT Supplemenl al lnlormalion Prescale divides input frequency by 8 8 ms 80 ms 800 ms and 8 s 1 kHz 100 Hz 10 Hz and 1 Hz 50 O ac couple...

Page 13: ...ize 1 kHz 100 Hz 10 Hz 1 Hz and 1 Hz lnput is ac coupled On 50 Q range term ination is dc connected Approximately 1 MQ in parallel with approximately 25 pF Vel 400 V Ve p 300 V f rom dc to 0 75 l lHz...

Page 14: ...ous oPeration Short Term Stability Adjustment Range The overall DC 508 Counter accuracy is Accuracy o o ol reading a llime base accuracy l total displayed counts l X 100 Time base accuracy calibration...

Page 15: ...With the instrument operating the vibration frequency is swept from 10 to 55 to 10 Hz Vibrate 15 minules in each oI the three major axes at 0 015 total displacement Hold 10 minutes at any major reson...

Page 16: ...width Length Front Panel Fin ish Net Weight lnformation 4 969 inches 12 621 cm 2 638 inches 6 701 cm 12 088 inches 30 704 cm Anodized aluminum Standard lnstrument 2 lbs 2 oz 0 964 kg lnstrument with o...

Page 17: ...he discrepancy circuit troubleshooting is then indicated Also use this procedure to determine acceptability oI performance in an incoming inspection lacility Table 3 1 Description Sine wave generator...

Page 18: ...amplitude o 15 mV into 50 O c Check that the LOSS OF LOCK light is ofl for all Irequencies from 10 Hz to 25 kHz 4 Check Resolulion Mulliplicalion Faclor a Connectthe 10 Hzto25 k Hz sine wave generato...

Page 19: ...emperalure a Connect the 1 MHz lrequency standard to the DIFECT INPUT on the DC 508 c Leave this setup lor the nexl step 8 Check Oplional Time Base Warmup Time a Connect the 1 MHz troquency standard t...

Page 20: ...OR USE BY QUALIFIED PERSONNEL ONLY TO AVOID PERSONAL INJURY DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO I Scan by vintageTEK Your...

Page 21: ...ronix lnc provides complete instrument repair and adjuslment at local field service centers and at the Iactory service center Contact your local Tektronix field oftice or representative for turther in...

Page 22: ...pment to a suitable line voltage source Turn on all test equipment and the DC 508 allow at least 30 minutes for equipment warm up and stabilization Make adjustments at an ambient temperature rom 20 C...

Page 23: ...nnect the SG 504 output head to the bnc 5 X attenuator the bnc to GR adapter and to the GB power tee c Connect a 5 X altenuator lrom one side of the power tee through a GR to bnc connector to the PRES...

Page 24: ...le bracket to the top oI the plug in Then remove the recessed screw on the left side of the prescaler Next remove the screw attaching the lower rear mounting post for the prescaler board to the main b...

Page 25: ...n delays the data should be transferred to external memory on the Iollowing negative going edge This output data line will drive two TTL loads 3 2 mA Overllow Output contact 238 Contact 238 is normall...

Page 26: ...is low when the SOURCE switch is depressed lnternal for instruments without Option 7 This indicates that the instrument is in the count on command mode as explained in the Start Count description This...

Page 27: ...V to about 5 V The frequency ot this circuit varies from about 500 Hz to about 35 N Hz This is accomplished by varying the current th rough U41304 and consequently the charge time of C4130 The positi...

Page 28: ...l istoo low lf too low a lrequency ortoo little amplitude is applied to the prescale input the peak detector applies a high to the reset of the second divider U2345 to inhibit its output Transistor Q2...

Page 29: ...in 1 is the clock frequency divided by the selected divider ratio See Table 6 1 Pin 1 of U1280 connects to the D inputol U12708 The clock is inverted by Q1 182 and led to the clock input of U I2708 Pi...

Page 30: ...increases the duration of the clear pulse initiated by the manual reset When voltage is rirsl applied to the instrument C1 160 charges toward 5 V This causes 01160 to conduct lowering the voltage at...

Page 31: ...ght emitting diodes in lhe modules The respective digit line for the digit to be displayed D1 through D9 then goes low This action raises the collec tors of one of the nine transistors connected to th...

Page 32: ...es pass transistor in the mainframe This over current voltage is sensed at pins 2 and 3 of U15 10 Feedback input from 5 V for voltage regulation occurs at pin 4 Capacitor C1522 is used to lrequency co...

Page 33: ...module it can be field installed by ordering Field Modif ication Kit 040 0789 00 Connect the DC 508 input either direct or prescale INPUT to the signal source output with a coaxial cable standard acc...

Page 34: ...of U4240E This in tu rn causes lows on pin 3 of U4140A 12 oI U4340D and 9 ol U4340C The low on pin 3 ol U4140A ensu res a high on pin 14 ol U1280 The high on pin 10 of U 1532C ensures lows on pins I...

Page 35: ...change in part number Change inlormation if any is located at the rear of lhis rnanual SPECIAL NOTES AND SYMBOLS X000 Pan first added at this serial number 00X Parl removed alter this serial number I...

Page 36: ...S CORP SPECIAITY CONNECTOR CO INC NATIONA SE iICOI DUCTOR CORP HEWLEIT PACKARD CO CORPORAIE IIQ hEST CA ARIZONA BOURNS NC TRII IPOT PRODUCTS DIV COIORADO CRYSTAI CORPORATION 4OSTEK CORP MONSAIflIO CO...

Page 37: ...DI 24PF 5t 500V 29A2 729A2 729A2 729A2 72942 a oo 5lt9AAD 15 R47 2K aoo5E9AADW5R472I 8035D2AADClGI00K 8005D9AlgZ5gI0414 30J O00c0G0240J CAP EXD CER CA EXD CER CA P FXD CER CAP FXD CER CA FXD CER DI 3...

Page 38: ...c2250 c2322 c2324 283 0252 00 243 O324 OO 243 0252 OO 283 0324 00 281 0773 00 CAP FXD CER CA FXD CER CAP EXD CER CAP FXD CER DI 1000PF 10t 50V DI 0 01PF 2Ot 50v DI 1000PF 10t 50V DI 0 01PF 20 50V DI...

Page 39: ...D SElIICOND sEl ltcoND SEIIICOND DEVICE GERUANIUM 75V 5O lA DEVTCE sMCON 3 15018 DEVICE SIIICON 55V 200uA DEVICE SILICON 30V 150X4 DEVICE sILICoN 3Ov 150rrA cRI680 cRt7 r0 cRr720 cRrT 22 cRl790 152 01...

Page 40: ...0188 00 TR ANSISTOR S ILICON PNP TRANS ISTOR Sl IcoN NPN BANSISTORTSCR 30V 0 8A TRANSISTOR SILICoN NPN TRANSISTOR SILICoN NPN 04713 o4713 04713 01263 a7 263 2N2907A 2N2222A 2N5060 s040065 s040065 8000...

Page 41: ...25W Rl126 RI128 RI129 RII3l 8t132 315 0750 00 315 07s0 00 315 07 50 00 315 0102 00 315 0102 00 RES FXD CI PSN 75 RES FXD CMPSN i75 BXS BXD CIPSN 75 RES EXD CMPSN 1K RES F D CMPSN IK olrM 5t 0 25w oHM...

Page 42: ...42 R 445 315 O102 00 315 0393 00 307 0445 00 3I5 0470 00 307 0445 00 RES AXD C 4PSNr1K OBM 5t 0 25W RES FXD CMPSN 39K Orfi 5t 0 25W RES NTW FXD PI 4 7K OHM 20t C9 RES FI D CI4PSN 47 OHM 5t 0 2 5ltl RE...

Page 43: ...10K OH 1 5t 0 25W RES FXD CUPSN 5 IK OHM 5t O 25W RES r D CMPSN 5tO OHl l 5t 0 25t RES ExD CMPSN 24 olll 1 5t 0 251 01121 0l 121 01121 01121 01121 c84745 e1035 cB5l 25 e5115 c32405 c83005 G56I5 G3915...

Page 44: ...Or 5t 0 25W RrS F D CIPSN 390 O ilr 5t 0 25W RES P D CMPSN 51 OHI I 5t O 2 5W R l792 R l793 RL 94 Rl796 F2Lr5 315 O182 O0 315 058I OO 315 0272 00 305 0470 00 3L5 0103 00 RES F D CUPSN 1 8K Om 5i 0 25...

Page 45: ...317 0620 00 317 0f51 00 311 1227 00 EXD CIIIPSN 221 I OI M 5 O 25 l EI D CMPSN 27K OHM 5t 0 25li E D CMPSN 62 Orot 5t 0 I25W EXD Ci lPSN 150 OH 5t 0 l25w VAA NONWIR 5K OHM 20t 0 50W 315 05r3 00 315 0...

Page 46: ...0032 00 156 0079 00 UICROCIRCUIT LI I VOITAGE REGULATOR MICROCIRCUIT DI TREGULAaOR MICROCIRCUIT DI r SGI BCD AO 7 SEG DCDR DRVR MICROCIRCUIT DI 4 BIT B1NARY COUNTER UTCRmIRCTIIIT DI DECAD COUIflIER T...

Page 47: ...1t3 r52 02 9 00 lN963B fN962a Y1410r 158 0129 OO Y1430_ _ 119 0894 00 xaAl UNIT qTz LotlHz 0 0O1l PARAIIEL OSC ILLATOR RF loMltz 24VDC 33096 80009 PBt109 119 0894 00 loption 2option 1 MICROCIRCUIT DI...

Page 48: ...r vanabl oiodo signal or roctilier lndicating dovice lamP spark Gap Ferrilo bead Hoat dissipating dovice heat sink Connector stalronary portion lndu to ix6d or variabl connocror movabl6 porlion Transi...

Page 49: ...s021 F5020 t 1 16 A tuse J2440 c2356 input s0o 0 c21 cR2460 u2330 Blanking t I I I I I I t I T 15 5 2 J Prescaler Cavity utut s PRESCALER BLOCK DIAGRAM o2125 Bias o2135 Bias o2145 Bias o215s Bias 3 5d...

Page 50: ...9 lL o o o e 0zeru c ttt l 9allE 6Zrra 9Z9r I l I t aeL H E t H E _ gE q I I I I 0ztta a sNolrvco l sruvd oEvos Nlvur I I I I r 6lr l I rl 1 09t uco s d E Oo LEc zgr ll rzrrciF l rD IEE Trr rE 6 6 V e...

Page 51: ...20 Js Slope controlled by DlSpLAy TtME Time oul u1280 pin I Synchronizer onlput u12fo pin 8 Clr 1 MHz U1280 pin u1740 pln 2 u1740 pin 14 Gate u1760 ECL pin 15 2460 16 I z a I o 3 2460 17 Fig 9 2 Measu...

Page 52: ...itmmm l ll ll 1 l iil rlB rlrlr H UEHH I o p o ts o u o o z 9 l zo I l 1 ur r o o o o I 5 6 I I L I I 9 t sNollvJo I sluvd 3VSl OUVOA NIVW a o _a Scan by vintageTEK Your donations help support the mus...

Page 53: ...ime base accuracy adjustment Slep 2 ffigrrsl rs It r r r El6l T 2V ri rt A lEtgrsli EF q l l 2460 11 Hlf gH I1156 ltt n HlgElFrfl tilf 3rirj Ell q r a 7 lflo Elg lf ffit rrr _ lf HE r I FIE l rr r rtr...

Page 54: ...p pps q ol z er l Pr lseP u q r luo oouoc t tl ogltr o z l I afr rt EEI l 33 r l l l l l lsl 0 94 r r rzEr 51 ri 1 R lzz rru r0 l ir t8 I l o zrgc sNollv30l SIBVd ouvos ul l ldlr lnw Nolrnlos lu Scan...

Page 55: ...6A0 560 b8 5r7 90 c 59 a 5v 11588 8 O_ H Rt794 7 K Qr792 F1792 t aK ct59a ae 5 o5go Lt5 90 r5 H H 5V Rr793 6EO ct t9z TO e1370 o ae Q 5l 2 lo H Q1790 MODULE 56 ts 3 6 Rr573 a suB P2440 r9 C GRID LOC C...

Page 56: ...2237 9 ltF o t r E r8l 61 a r Y tel lsllE Flt 3 g9n cE233s I R5683 03 DC 503 rA ri x9 et l r lgl 3r mq HI IH E R areJ rrl EiE 1 tl BE B ir 781 20 10 2 9 F o J F e itt o tl o E DC 508 2100 PRESCALER BO...

Page 57: ...C8 zvz svl c21Za Ra33 7 AM 6 LZ2tO 2 51H R2120 r30 T t242 6 L2420 2 rsv Y Co243O R2425 39h 5 c5032 oot La45 z 5yF t2144 4 5 H H c2140 H 2vt 5v 3 c4344 H 5tx 3 9X R2334 27 t R2422 SX or H ue350 MCl697...

Page 58: ...PTroN I I IMEBASE Nc 5v F6 1D m lD rrl z m o I 6 6 rx orr oN z o le Q OR JI29O ARE AS FOLLOWSI 7 ra2 263 aL5 5V I t r3A E 2 IIMEgAS OUTPUT I H Rra2r r2v c a2 ta o lco MODULE cta2a cRld20 Qla 2o r3 8 S...

Page 59: ...O 300 Q1632 r 5r 30 5v UI 7OA E 82 gl r rro R1230 5v e ct 6a 5 rK Qll6O n 50 R l o l2x Ql 5 h l o tHz DTRECT RESOLU_nON TOTALIZE cc w PEESCALE RESOLIJTION Qr54 3 r5 Q s52 Qr553 R s t4B a rl ul532D sr3...

Page 60: ...ur330 L7 278 ar U orno Q ur360B I t 2 7421 a 5V TO MOOULE Rlr 2 IK 438 e5A 5 FRoM u1330 2 5 9u 5 nr24 5 ltlao l Qtz4Z 2 74 9 Qi 53 5 vt sv Fr253 2 7 t la 5 5 arz lo lt l 5 l I 2tg a oe rxr I llol loo...

Page 61: ...p aso I a R 44250 5 tK J42 u43400 U 340C u4330 I OPEN COLLEC OA a oP l l sEoBE I H OI T 7P rtlP4zso I 10 DIAG 4 p4taa e r gz I F LiGHT Hl 4l flnp4a50 trl tL i couNr I 9L zs oprz I Lt GArE I TO D lA6 o...

Page 62: ...the same indentaiion as the item it mounts while the detait parts are indented to the right lnc enled items are part or and inctuded with the next higher indentation The separation symbol indicates lh...

Page 63: ...TRI MENTS INC CONTROL PRODUCTS DIV CENIIRAL SCREII CO SEAI TCARO CORP P O BOX 5012 13500 N CENTRAL EXPRESSWAY 71 00 l PsoN Aw YOUK EXPRESSWAY 3560 MADISON A E 30 ROCXEFEII ER PI AZA PO BOX 85 OFF ROII...

Page 64: ...25 00 23 24 26 27 24 13r 0608 00 136 0252 O4 131 1425 00 333 2365 00 200 0935 00 352 015 00 386 3825 00 CKT SOA RD ASSY INCI UDES 15 CONTACT ELtrC 0 365 I X 0 25 PIt BRz COLD PL g SOCIGT PIN TERM 0 18...

Page 65: ...4 4O X 0 3f2 INCII PNH SaL PosT ELEc tlEcH O 25 L x 0 25 IlEx Al LINK tERll CoNM 0 086 DIA x 2 375 INCH SOCKXT PIN TEAI4 0 188 INCH IPNG CONNECTAR RCPT 50 OHM MAL SNAP ON SIiIE D EI EC CIRCUIT BOARD...

Page 66: ...CER PB SW CflARCOAr 0 33 INCH IpNG coNN RcPT ELEc SEE J1770 EPL SOCXET PIN TERI I o I88 INCH I oNG SWITCH PUSIIT SEE sI570 EPL SPITCER PB SW 0 133 INCH LONC SWITCH PUSH SEE 51320 EPr CoNIAqI Etlc 0 36...

Page 67: ...ONN BODY PL EL 2 WIll ORIANGE CONNECTOR TERM 0 48 1 22 26AWG WIRE WIRE SET EI EC CONN BoDY PIT EL 8 WIRE VIOLET CONN BoDY PL EL 10 WIRE BIACK CONNECToR TERM 0 48 L 22 26 AWG WIRE WIRE ELECTRICAI s WIR...

Page 68: ...I ro DO 7 9 f ffi ffi Bl ri t s Ar ofooldxs t ctj A f t t A 9 66 I fa t w o o o t Scan by vintageTEK Your donations help support the museum vintagetek org...

Page 69: ...umber Fig lndex No Tektronix Part No Serial lvlodel No Eff Dscont o o n o o 2 n 80009 070 2460 00 I l lAlilJAL TECE INS TRUCT ION I I I I I I I I t l o7a 2460 OA I t I t I I I I I DC 508 Scan by vinta...

Page 70: ...ied in the manual unlil all changes are permanenfly entered some duplication may occur lf no such change pages appear lollowing this page your manual is correct as printed SERVICE NOTE Because of the...

Page 71: ...to 0 1 ts Sinewave available to 50 10 and 5 ns Separate trigger Pulses trom 5 sec to 0 1 s Multiple time marks can be gene rated simultaneouslY PG 506 replaces 106 067 0502 01 SG 503 replaces 190 190A...

Page 72: ...DD 175 0250 00 162 053r 00 2r0 00s4 00 211 0008 00 3 5r CABLE SP ELEC 4 28 AWG SHTELDED 2 TNSUL SLVG ELEC TIEAT SHRrNK o 188 rD 5 8 l 2 WASHER LOCK 4 SPLrr 0 025 2 S CREW MACHINE 4 4 0 X 0 188 STL CD...

Page 73: ...CAP FxD CER DI 1000PF 102 50V 283 0252 00 CAP FxD CER DI 1000PF 102 50v L52 0524 00 SB tICoND DEVICE 100V 10oMA 108 0509 00 COIL RF 2 5UH 151 0188 00 TRANS ISTOR S ILICoN PNP 2N39 06 315 0331 00 RES F...

Page 74: ...y 25 pr P age 2 2 left co1um tenth row CHANGE TO READ Impedance dc coupled age 3 1 Table 3 1 second column first row second line CHANGE TO REA D MHz to 1cHz 20 mV Page 3 1 Table 3 1 second column seco...

Page 75: ...exists to drive U2350 properly A high Page 6 2 right column top of page Insert the following text under Prescaler bet een end of first paragraph and beginning of second paragraph The automatic gain co...

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