AMSTRAD PC-CD Service Manual Download | Manualshive

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Summary of Contents for PC-CD

Page 1: ...IBM PC1640 PERSONAL COMPUTER PC MD MONOCHROME DISPLAY PC CD COLOUR DISPLAY PC ECD ENHANCED COLOUR DISPLAY SERVICE MANUAL ...

Page 2: ...f three displays paper white mono colour enhanced colour with standard video connector ECD monitor has 31 mm pitch shadow mask CD monitor has 42mm pitch shadow mask Internal Graphics Adaptor provides Mono MD 80 column high resolution text with 9x14 dot characters EGA compatible Monochrome graphics 640 x 350 lines Colour CD for use with CGA and 200 line EGA software 40 80 column text with 8x8 dot c...

Page 3: ... are also produced with other diskettes unless obvious assembly trouble or damage are found in visual inspection 3 2 Soft Error Detection and Correction Soft errors are generally caused by the following 1 Dirty air between the R W Head and Disk Normally this dirt is cleaned out by the liner in the diskette 2 Random electrical noise less than several microseconds 3 Delicate track misalignment and w...

Page 4: ...he drive belt and the side of the spindle pulley and DC motor pulley Disconnect the connectors LED P C B Track 00 sensor DC Motor P C B Stepping Motor Head F P C Unfasten four printed circuit board fixing screws Remove the printed circuit board Remove the insulating sheet Fig 4 1 Printed Circuit Board Exchange 4 1 2 Printed Circuit Board Mounting and Adjustment a Install the insulating sheet b Fix...

Page 5: ...otor P C B b Fix the DC motor P C B with two screws c Reconnect the disconnected connectors Printed Circuit Board DC Motor Fig 4 2 DC Motor P C B Removal 4 3 Lever Exchange See Fig 4 3 4 3 1 Lever Removal a Set the lever horizontally b Unfasten the fixed screw of the lever c Pull the lever forward 4 3 2 Lever Mounting a Place the wide part of the clamp cam on the hub side and check that the lever ...

Page 6: ...zel Exchange 4 5 LED Assembly Exchange See Fig 4 5 4 5 1 LED Assembly Removal a Disconnect the connectors Index sensor W P sensor and Printed Circuit Board b Unfasten the LED Assembly fixing screw c Pull it back 4 5 2 LED Assembly Mounting and Adjustment a Install the LED Assembly by inserting the LED into the LED insertion hole on the bezel b Fix the LED Assembly with a screw c Reconnect the disc...

Page 7: ...4 6 Ejector Assembly Exchange 4 7 Lever Frame Assembly Exchange See Fig 4 7 4 7 1 Lever Frame Assembly Removal a Remove the lever as described in 4 3 1 b Remove the bezel as described in 4 4 1 c Remove the LED assembly as described in 4 5 1 d Remove the ejector assembly as described in 4 6 1 e Unfasten four lever frame fixing screws f Lift the lever frame assembly slightly making sure that the top...

Page 8: ...ard direction Head Assembly Mounting and Adjustment Insert the guide shaft into head assembly and mount on the chassis so that the follower pin of the head assembly fits into the screw of the screw shaft of the stepping motor assembly by sliding to the left Secure guide shaft keeper A and B with two screws Reconnect the disconnected connectors head F P C Mount the lever Frame assembly as described...

Page 9: ...Mount the head assembly as described in 4 8 2 d Mount the lever frame assembly as described in 4 7 2 e Mount the ejector assembly as described in 4 6 2 f Mount the LED assembly as described in 4 5 2 g Mount the bezel as described in 4 4 2 h Mount the lever as described in 4 3 2 i Adjust the radial track alignment 5 2 index burst time 5 5 trackOO sensor timing 5 3 head azimuth 5 4 resolution 5 7 an...

Page 10: ...ensor assembly fixing screws e Remove the trackOO sensor assembly 4 1 1 2 TrackOO Sensor Assembly Mounting and Adjustment a Mount the trackOO sensor assembly with a screw b Reconnect the disconnected connector trackOO sensor c Fix the cover with one short screw and two long screws short screw for inner hole d Adjust the trackOO sensor after mounting refer to 5 3 Fig 4 11 TrackOO Sensor Assy Exchan...

Page 11: ... DC motor board VR1 Fig 5 1 Spindle Speed Adjustment 5 2 a b c d Radial Track Adjustment See Fig 5 2 Insert and clamp a CE diskette Move the head to track 1 6 and check the cat s eye waveform of the top and bottom heads Adjust as follows if one of the top or bottom head is not more than 75 in an amplitude ratio of two waveform Slightly loosen the fixed screws of the stepping motor assembly and mov...

Page 12: ...l k b r Direction r The minimum access time between tracks a b 6ms track 3ms max 8ms max Fig 5 3 TrackOO Adjustment 5 4 Azimuth Check a Insert and clamp a CE diskette b Move the heads to track 34 and check with third waveform set if azimuth waveforms of top and bottom heads are as described in Fig 5 4 c Exchange the head assembly if the azimuth of one of the top or bottom head is not as shown in F...

Page 13: ...l H i jr ufD he T 200 200 is qA Fig 5 5 Index Burst Time Adjustment 5 6 Lever Check a Insert and clamp a blank diskette b Move the heads to track 39 and write 2F by the top and bottom heads c Check that the average output levels of the top and bottom head is more than 270mV Perform the following if the output level is below the required standard d Insert another blank diskette and reconfirm e Chec...

Page 14: ...y the top and bottom heads c Check the symmetry as described in Fig 5 8 d Exchange the head assembly if the symmetry is out of the range as described in Fig 5 8 on only one head side e Exchange the printed circuit board if symmetry is out of the range on both heads f If the symmetry is still out of the range exchange head assembly or printed circuit board that was not exchanged on the previous ste...

Page 15: ...not write YES Does it write if medium is changed Y NO Is write protect seal stuck on medium NO V YES Write protect sensor has failed Check write protect circuit and its periphery is head cord damaged or disconnected V NO Remove seal YES Exchange head Is write gate correctly opened YES NO Check circuit check system Is setting appropriate YES NO Drive NG stepping motor Check circuit 15 ...

Page 16: ... M Change head YES A Are errors caused on inner circumference of tracks NO Is index signal correctly sent Y ES I NO Is azimuth azimuth Tilting of guide shafts due to shock or heads are defective YES Is seek operation normal NO 5 Check step motor and driving mechanism YES Is time margin of inner circumference tracks sufficient YES A i NO YES y Change the printed circuit board Change the head if pro...

Page 17: ...C3470AP Change printer circuit board YES Are cords and wires correctly connected7 NO Correct incorrect wiring YES Over speeding Is index signal sent correctly NO V I YES _y_ Is TRKOO OK7 YES Check motor control printed circuit board Is servo cord disconnected from motor7 NO V NO YES 1 Is motor start time appropriate 7 V NO YES Read circuit may have problems Change MC3470AP Change printed circuit b...

Page 18: ...turn 8 Press return every time you are asked a question 9 With disc one still in drive A type FORMAT C S and press return 10 When formatting is finished replace disc one with disc four 1 1 Type CD SUPPLEME and press return 1 2 Type CONFIG and press return After typing CONFIG the machine will proceed to copy the four system discs to the hard disc After copying each disc you will prompted to insert ...

Page 19: ...ware In particular by the DISPLAY command which is installed on all Hard Disc PCs and Disc 2 of your system discs Many of the modes below have been given a name unique to the Amstrad PC1 640 in order to easily distinguish between them These names are accepted by the DISPLAY command which will switch to the requested mode or print an error message if it is not possible or advisable Mode Sw1 Sw2 Sw3...

Page 20: ...s card that can be fitted to any of the 1 640 expansion slots It comes supplied with an IC clip which is placed over IC108 Note that the pin on the clip with most wires attached connects to pin 10 of IC108 Also supplied are two loopback connectors one each for serial and parallel ports There is also a disc supplied with RP5 2 which will check the VDU It should be noted that RP5 2 will perform on a...

Page 21: ...NOTES mu 21 ...

Page 22: ...NOTES 4 22 ...

Page 23: ...KEYBOARD EXPLODED DIAGRAM 4gjj NOTE FOR PART NUMBERS REFER TO PAGE 27 23 ...

Page 24: ...GHT o END 3 PGDN DE1 F6 A D G L f INS F5 CTR1 s F h K CAPS LOOK X5 F4 Q F F HOME 9 PGUP F3 W R P ALT X3 X2 F2 t 3 5 pc SCROLL LOCK F10 F ESC 9 2 X NUM LOCK ENTER F9 Y2 Y3 Y5 YG YIQ H 1L H KEYBOARD S BC ESU 2435 AMS PI NC Z7G3C3 KEYBOARD CONTROL PCB LAYOUT 24 ...

Page 25: ...CS0 R 12C_ CURLl CA E P V t TERMINATION W KEYBOARD SCHEMATIC DIAGRAM 25 ...

Page 26: ...UPD8237AC 5 171397 X103 Crystal DSVT30032K 171374 IC132 IC AMSTRAD 40044 171578 X104 Crystal HC18RW24 0 171375 IC134 IC MC146818P 171399 X105 Crystal HC18RW28 636 171376 IC135 152 IC MN41256 15 171400 X801 Ceramic Resonator 171377 IC153 154 ICTMS4464 12 175005 KBR 6 0M 156 157 901 908 IC155 158 X901 Crystal KXO 01 1 16 257M 175025 IC MT4264 15 175006 P C B s A v IC171 IC AMS40096 PAL16L8A2NC 40096...

Page 27: ...1 CABINET DRAWING FOR PC1 640 SD DD HD20 ...

Page 28: ...late Shield Bottom 175018 15 F D Drive A B 171576 17 Knob Volume 171362 18 Speaker 171370 19 Fan HD Unit 96001 Spacer H D Fan 175036 21 Top Cabinet Keyboard 175039 22 Switch Key Board 171409 23 Keyboard PCB 171412 24 Cabinet Bottom Key Board Assy 171355 25 Stand Keyboard 171358 26 Washer 171659 27 Cord 6 Pin DIN Keyboard 171420 28 Cabinet Front Assy HD20 175032 29 HD20 Tandon 60001 29 HD20 ALPS 17...

Page 29: ...J0 i f i JD104 RSOt NR102 CPS01 5T IA CD10S DISK DRIVE IH 21 i F f Riao R177 f jf Sa i w K j 8 _ 1 I 4 i i o ao my R122 v y 78 S ft J sV S RM6 w 5 1 rMi j jUf Im la til ftl j i Bta LK4 640K 2 j V R196 12S v h I 1 I i IT I T I i s8Jrl C132 s 2 Hhj C131 1 2 be 1C1 3E 1 I ici a i R175 a 5 JJ M i I I I i i i i I i II Zti33SZ X V mSI CP4oY CSiOl C402 in f V t 7 t mm a SE cl07 Til xm v ij i i ml ICI48 H...

Page 30: ...ll i sgllr S l VI ii fJ J f f f f f fji f f f f f s i i t Jf f l i ia i b I fi l i RtIS yv TiiHi iipifi i i iiiiiiiiiiiiii l irini I M 1 1 li l l M j i if j r g j n iip og i p ___________ y I I K MMl iBxrans1 0n R1I7 ffiV fHfml __ __ _ IC119 NOP K2 R114 MUM IC9 2 PAL40097 tfti Hl Is M H _____ H wm l_3 H CD104 CDtOI ICI7t PAL40036 S r2 a J 270350 EP MC0Q40A T S ti 0 ...

Page 31: ...PC1640 SD DD HD20CPU F I Ife r i l j I I S S 13 j Y 9 f f S 1 0 f is H 3 j 1 u pr 1 li i ii a Id T w r b JMgi LE A2 grE ri e 1 k i Li Pit p l s J 8 S a i i J ii I a i a i y i f ...

Page 32: ...CPU P C BOARD BOTTOM VIEW 71 3 C c 1 _ 3 _ I 5 a J Xirx r i i x 29 ...

Page 33: ...PC1640 SD DD HD20 CHASS 30 ...

Page 34: ... DRIVE SELECT I MOTOR ON O 32 c 2 ICI IG LSI 4 ICI IE LSI 4 r NR102 WRITE DATA DIRECTION SIDE SElEC WRITE Gate STEF WRITE PROTECT I NOEr READY L 3V ICI 16 LSI 4 CD 102 DD 34 WA CON o ALL ODD P I NS I 33 SEPD SEPOJ VCC CDO ICI I I FDC9IC36 2j D ov FI2 CDIC DR I VE 2 POWEF CD I 04 DRIVE I PQWEC DRWE 3 ROWEF LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITF N UTILISER QUE CELLES D...

Page 35: ... RESET H MS I j API 2 _AD9_J ADS J H T24 00MHZ J 2 UH zLT X CI 17 I 8P NPO r NRQGFO 71 k M8HE 3 k MS2 k MSI 5S MSO 1 5V 23 42 1 64 34 KBDATA KBCLK NDACK3 MDACK2 WACKO rRO ADSTB MXMEMR MX OH MX10R HOLDA CK24 RESET CK8 READY NRG GTD NBHE NS2 NSI NSC 0125 AMS 3US GATE ARRAY ALE BALE ordy NMEMW NMEMR NIOW MIOR PC1 640 SD DD HD20 CHASSIS SCHEMATIC DIAGRAM ...

Page 36: ...G VSD5 v SD4 VS03 V5D2 NVRAS MVCAS NVMWE NVDfOE VSC MA7 MA6 VMA5 v MA4 VMA3 VMA2 VMA1 MAO J 4 40 39 9 2o 9 AMS VDU GATEARRAY IC126 40041 PSW M_PEN z z z 31 28 J CAUTION SINCE THESE PARTS MARKED BY ft ARE CRITICAL FOR SAFETY USE ONES DESCRIBED ON PARTS LIST ONLY ATTENTION ES PISCES REPAREES PAR UN A ETANT DANGEREUSES AN POINT DE VUE SECURITE N UTILISER QUE CELLES DECRITES DANS LA NOMENCLATURE DES P...

Page 37: ...CCDCDCDCI DDQQQQOD J feYY 4 25 i 117 1 Y 1 2 r 2 1 5 24 G 1 8 i i t L I m 04 _ n w 1 o 1 u z x z z 1 rnrrmiDmfn Tirr1 2 9 3lDJ2 UL 6 22 BADS BAD 15 IC109 8259A 2 P 1 1 1 1 1 o c tn ui ui r o to u j o la I IzUs Y X j 26 NINTA BAD8 BAD15 IC1 14 8253 5 p l 3 U1 ILi d _J o iu I lir u I 1 9 5 U h h 32 ...

Page 38: ... CHASSIS SCHEMATIC DIAGRAM ...

Page 39: ...132 IN JDSO POWER DiN 4 PIN SOCkEI TT 5 X o OWER LED DS03 LSI 34 3ZZ I 2 4 i0 9 uES PIECES REPAREES AR UN 4 ETANT DANGEREUSES AN POINT DE VUE SECURITE N UTILISER QUE CELlES DECR I TES DANS LA NOMENCLATURE DES PIECES CAUTION SINCE THESE PARTS MARKED BY A AR CRITICAL FOR SAFETY use ONES DESCRIBED ON PARTS LIST Oil ...

Page 40: ...S SCHEMATIC DIAGRAM PRINTER 25 AY D SUB 1 _ JP101 SERIAL FORT 25 AY D SUB CONN ED BY A ARE JSE ON S r ONLY THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE 33 ...

Page 41: ...1640 SD DD HD20 CHASSIS SCHEMAT 3 5 Wr IHWf 4 2 pj m m y I I ftr 800888 Sj J L as J tn m m h t 00 J bi It 8 1r 1r E I 3 It W m tr t 8 9 1 3 s a D tO V CM m h s 1 o f iojsfl g eT t tH ym r I 3 3 gs LP 8 34 ...

Page 42: ... hematic diagram ...

Page 43: ...PC1640 SD DD HD20 CHASSIS SCHEMATIC DIAGRAM ...

Page 44: ...esistors 1ohm y2 W R415 416 171594 lOohm AW R516 809256 39ohm V4W R414 432 171596 1 kohm AW R515 171597 Cement Resistor s 5 6ohm 5W R501 1422138 Description Circuit Ref Part No Ceramic Capacitors C539 C502 504 805 806 0516 520 527 C508 2200pF 4kV 0 0022uF 2kV 0 0056uF 500V 0 01uF 1kV Electrolytic Capacitors 4 7uF 25V C4118 22uF 160V C426 150uF 400V C505 330uF 63V C804 470uF 16V C522 1000uF 16V C51...

Page 45: ...42 53 Holder PCB L 171541 54 Cabinet Back 175042 55 CRT MN1404H31AU 175091 56 CRT Socket 171567 57 Metal Washer 171580 59 Stand Bottom 171461 60 Stand Top Spacer 171463 61 Holder Stand 171462 62 Frame Bottom 171543 63 Button Push 171469 64 Knob Volume 171462 65 D Sub Cord 175092 66 14 Pin DIN Cord 175142 c 36 ...

Page 46: ...PC MD CABINET EXPLODED VIEW ...

Page 47: ...PC MD MAIN CRT VOLL T 3 15A avo 0t9 OB 1 _ C rj L1K T i DS04 ...

Page 48: ...3 t SV SV C 12V C 12V N nSt5 T T T T i 1 1 111 fill 51 1 CPSQ4 JL icsos a Qj W I GS31 o 1 t s t_j 1 m r Rom icy tiEO CS14 V CD4Q4 pi CS24 DS18 eS27 a I asoe TT GH RSiT i 3 JR 5TM RSIO W icsdt ts J T iU t j I RSU3 g R5lj g l Ef r i C513 o m J J 37 ...

Page 49: ...p N AC DC 1 0 2 12 8 r 2 0 2 17 S 3 22 4 4 0 1 5 0 3 5 7 G 8 G 7 1 0 2 4 S 9 2 1 1 4 10 0 2 0 1 1 1 ii 7 1 1 4 13 0 2 0 1 IS 202 0 SO O CAUTION SINCE THESE PARTS MARKED BY A ARE CRITICAL FOR SAFETY USE ONES DESCRIBED ON PARTS LIST ONLY LES PIECES DANGEREUSE N UTILISER DANS LA NC 38 ...

Page 50: ...ES PIECES REPAREES PAR UN A ETANT DANGEREUSES AN POINT OE VUE SECURITE N UTILISER OLE CELLES DECRITES DANS LA NOMENCLATURE DES PIECES THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND 3JBJECT TO CHANGE WITHOUT NOTICE ...

Page 51: ...SES AN POINT DE VUE SECURITE N UTILISER QUE CELLES DECRITES DANS LA NOMENCLATURE DES PIECES THIS SCHEMATIC DIAGRAM IS THE LATEST AT OF PRINTING AND SUBJECT TO CHANGE IITHO j f CD201 JS8GS09001 K213I4EI6H9I9I INVERTER BUFFER IC201 SN74LS0G oj a o a NTT U CM CONTRAST VR20I SOOB 3212 M W r 0O4S S80 0 l D20I 1SS132 f 0201 2SA733Q t D202 j I ISS132 SjS 3QJ m m R40S M 3 9K H AFC OSC IC402 AN57S3 1 PHASE...

Page 52: ...SCHEMATIC DIAGRAM IONITOR 8 23V P P 10 4 0V P P u 1 1 230V P P 12 32V P P LATEST AT THE TIME NGE WITHOUT NOTICE J 39 ...

Page 53: ...disc in the system unit Set brightness and contrast pots to max ie VR405 VR201 turn centering magnet to adjust circle pattern in H position Adjust L403 to get border see Fig Then adjust 4 pole magnet to clear any corner distortion 1 Refer to Fig B 8 V size cont Screen on Observe screen Use the same test screen as 7 Adjust VR401 to make A C B D E F 1 74 2mm 1 Refer to Fig B 9 L V Linearity djustmen...

Page 54: ...D410 D Z MTZ1 1 BT 171623 D411 D BB4 FC 1422116 D50 1 504 D 20E10FFA13 A 170848 D506 603 D DFC15L KC5 171491 D507 509 604 D DFH10G KB4 171492 606 D508 602 D Z GZB9 1B 171493 D510 D 30DF6 FC 171494 D511 D Z SR 2M 1400122 D601 D Z GZB18B 171495 D607 D GZA18Y 171624 D611 D Z F5KQ60 171496 D612 D Z F10PO4Q 171497 D614 D Z MTZ5 1BT 77 171498 D615 D Z MTZ5 6BT 77 171499 Description Ref Part No Metal Oxi...

Page 55: ...35V C437 1422159 2200uF 35V C408 1422160 3300uF 16V C621 622 171654 3300uF 35V C618 171655 Mi t Polypropylene Capacitors 0 0082uF 1 6kV C430 171656 0 82uF 200V C433 171657 Ref Description Part No Metal Plastic Capacitors 0 1uF 250VAC C501 171658 Polypropylene Capacitors 0 1uF 200V C439 171609 Coils Transformers L401 Coil Linearity 171500 L402 Coil RX 9P 472K470uH 171501 L501 Coil Line Filter AC PL...

Page 56: ...ig A 2 Prevent short circuit when pulling the PCB forward 6 V size setting Load diagnostics in PC1640 Monitor screen Adjust VR404 to the border is 1 2mm 3mm all around 1 Set optimum brightness contrast setting 2 Refer to Fig 1 7 Sub contrast control Load diagnostics in PC1640 Monitor screen Select colour bar pattern set brightness pot VR1 02 2 to max S contrast pot VR102 1 to min Adjust VR1 03 so ...

Page 57: ... 2SC1815Y R603 i e RG02 VA 2 2K L uES PIECES REPAREES PAR UN T ETANT DANGEREUSES AN POINT DE VUE SECURITE N UTILISER QUE CELLES DECRITES DANS LA NOMENCLATURE DES PIECES AUTION SINCE THESE PARTS MARKED BY A ARE CRITICAL FOR SAFETY USE ONES DESCRIBED ON PARTS LIST ONLY 42 ...

Page 58: ...IIS SCHEMATIC DIAGRAM WER SUPPLY SV PROTECT 3610 2SC181SY V NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE ...

Page 59: ...SC BI5V CAUTION SINCE THESE PARTS MARKED BY A ARE CRITICAL FOR SAFETY USE ONES DESCRIBED ON PARTS LIST ONLY LES PIECES REPAREES PAR UN A ETANT DANGEREUSES AN POINT DE VUE SECURITE N UTILISER QUE CELLES DECRITES DANS LA NOMENCLATURE DES PIECES NOTE THIS SI CF PRII ...

Page 60: ...SCHEMATIC DIAGRAM IONIT0R J THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND 5UBJECT TO CHANGE WITHOUT NOTICE 43 ...

Page 61: ...L s_ Z 44 ...

Page 62: ...I H HCLCl 1 w VR402 h Sis I fj 3 24V NC IBOV Br COL fW NC HEATER o m f FfPl PTN0TZ70343 VR40I Mil PC CD CRT P C BOARD 3 g 6 j g VR805 j VR802 i _ _ _ T li E I x C802 vH801 T vHe04 RSQ3 C805 yB XPC FR 1 1 r C8QI IV R8CM IS If RSI2 C803 2 rt U rii 5 EN 8 uO ...

Page 63: ...d 171522 88 Fan Unit 96001 Frame PCB 171467 Bracket Switch 171468 PC CD CABINET PARTS LIST Description Part No Cabinet Front Assy 175044 32 Stand Bottom 171461 33 Stand Top 171463 34 Holder Stand 171462 35 Holder PCB R 171466 36 Holder PCB L 171465 37 Frame Button 171464 38 Button Push 171469 39 Knob Volume 171362 40 Cabinet Back 171474 41 CRT M34EAQ10X AT1 460 90 171534 42 Sheet CRT Spacer 43 Scr...

Page 64: ...C ECD CABINET EXPLODED VIEW 45 ...

Page 65: ... D501 504 D 20E10FA13 D506 603 D DFC15TL KC5 171491 D507 D DFH10TG KB4 171492 D508 D GZA9 1 B 171493 D509 604 606 D DFH10TG KB4 171492 D510 D 30DF6 FC 171494 D511 D Avalanch SR 2M 1400122 D601 D GZA18B 171495 D602 D BZA9 1 B 171493 D607 D Zener GZA18Y BT 171624 D611 D F5KQ60 171496 D612 D F10PO4Q 171497 D614 1 D MTZ5 1BT 77 171498 Ref Description Coils L401 Coil Linearity L402 Coil Width L501 Coil...

Page 66: ...ohm 2W R502 171077 4 7ohm 3W R456 171626 47ohm 1W R624 171628 56ohm 1W R637 171629 100ohm 2W R612 171631 15ohm 2W R511 513 171627 68ohm 2W R436 171630 82ohm 2W R507 175113 1kohm 1W R610 170406 2 2kohm 1W R613 171632 2 2kohm 2W R442 175114 3 7kohm 2W R452 175109 3 9kohm 1W R503 504 170407 4 7kohm 3W R499 175115 5 6kohm 2W R805 807 171635 22kohm 3W R609 171636 33kohm 2W R508 171637 82kohm 1W R607 17...

Page 67: ...ch pattern 15kHz Adjust VR408 VR403 so B D A C becomes 1 2mm 3mm respectively Select pattern as before 22kHz Adjust VR406 VR402 for similar measurements If in previous case B D do not become 1 2 3mm adjust L402 the setting will be for 1 5kHz 1 Set optimum brightness contrast setting 2 Refer to Fig 2 7 Sub contrast Sub brightness control Load EFG diag test card Monitor screen Primary colour pattern...

Page 68: ... 14 8ISI RIM R1S8 15 R1S3 NIC10I fU 02 R130 n Tn c 3cf V PC ECD CRT P C BOARD PC ECD RELAY P C BOARD BSOaLj I I m GN QB02 Qeos 3KTBO Z7Q3QS 9lg np R808 n aJ TF 1304 v Hi of i NC fiV R802 I 6ND HEATER SCREEf cd 2 T s 8 0 Ot CO frg f ii 0419 R492 R4S0 8 m CLTrT S o i ii D41 1 1 0405 1 BW 0408 PPMSS 10 sO I R438 a 408fn u sf r 48 ...

Page 69: ... yy m 3 Rf 44 yrm y zKwmwrim I O I T 0 I I F 1 J f l 30i MM if w K E3 r r 33 K sfi HEQ4 860 Os I i RBBl Ofe02 I or m 3D V i MS r to wSSSTmF l tij o O i el _ HfO l e 0 W yyyMMWM i y y yyMSSS BROWN mm L t R601 o 2 8 LjI i e J VRKK t r QE i a i j ...

Page 70: ...4 fr xrr i t i I t I i I I 11 R403 Ot C 401 fig h i 4e i R404 PJ43 J mix C403 HI S C42t r c BS3 wo I2pl C QE I f I i i r 5 2 _ 1 a 14Q I L a 6 wr i 1H CONII MS be RANK Y 4pS or k 0433 y o a 1 4so CSlf 01 Tip 11 I O I O JQ _ v II I P8401 pi Ml OK 4 13 6 6 6 v VB4Q1 _ _ PT NO Z70340 J 49 ...

Page 71: ...PC ECD CHASSIS SCHEfl TTL DECOD count oigithl tronsistor NOTE this schematic oibgrbm is the latest bt the time Of printing bno subject to chrngc without notice 50 ...

Page 72: ...ilS SCHEMATIC DIAGRAM 1 DECODER IC16B MLS 36 R115 1CH5 MLS35 Ly yi IC1M 74LS38 SljJ ...

Page 73: ...80K PO ER SWITH SIS I A ESB 90217S cro rCDSOI N 240V 50HZ 7FEET I20LS40COI F50I T 3 ISA ATTENTION LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N UTILISER QUE CELLES DECRITES DANS LA NOMENCLATURE DES PIECES SINCE THESE PARTS MARKED BY A ARE CRITICAL FOR SAFETY USE CNES DESCRIBED ON PARTS LIST ONLY ...

Page 74: ...2 BAG993 J 330 ICPS01 A PO ER 4 REGULATOR Zn ICS02 h IS I L78Mt2 ICPSC3 JT 7L 2 0 CONNECT PROTECT OGia 2SC18I5Y PCWER REGULATOR IC503 BA17SOS nrv 1 600V P P R513 15 2W I I 2 T in tn THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OP PRINTING AND SUBJECT TO CHANGE HITHOUT NOTICE 51 ...

Page 75: ...P P J 5 a VW 4 7K 3U 8T JS c I JfflT A VM1 M34JKO 7 x n D PCB003 MS0078A Tjf 1MUH C0801 24053002 cpmu J CQIt RT 01N 2 34 7 1 W LBil R8t3 IMUH Wf a M5tl rus iamzHzn iBfli tftl C R819 6 8K RM3 _wv A HPS il51 61 5ll in vw iS R4S wv 48 Wv 8 our 0414 ZSC1513 R474 X r La T 4 fS YjfTT O I cw 1GK ir R4 ...

Page 76: ... MO PCB001 MM0028B GNO BRIGHT 51 M Jpr PCB004 MSO075A W CDNTRBST URlli 1 site JU4 A U OUT ICAtl UPC137SH VtRTICPL DRIVE it 53 0 a K p A D c t c D R414 VW R U a Si M rr u ofl6l D41Z JSC1815 V BLRM D417 T T 0432 M M 52 ...

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