Philips 70DCC600 Service Manual Download Page 1

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Summary of Contents for 70DCC600

Page 1: ...ctrical measurements 41 42 Component layout 43 44 Front board Component layout 45 46 Circuit diagram 47 48 Supply board Circuit diagram 49 Component layout 49 ReadlWrite board Circuit diagram 50 52 Component layout 53 54 Loading assy Exploded view 55 56 Mechanical partslist 57 Tray indication board Circuit diagram 57 Component layout 57 Partslist 57 Tape deck Dismantling DCC head 58 Exploded view ...

Page 2: ... Frequency range Amplitude linearity Phase non linearity Channel unbalance Output resistance Outband attenuation Channel separation Muting search SNR THO noise 2Vrms 2dB OdB digital level 20Hz 14 5kHz at fs 32kHz 20Hz 20kHz at fs 44 1 kHz 20Hz 22kHz at fs 48kHz 0 5dB 2 max at 1kHz 0 5dB at 1kHz 200Q 60dB above 30kHz 80dB at 1kHz 70dB at 20Hz 20kHz 100dB 90dB I 93dBA typo 85dB at 1kHz 82dB at 20Hz ...

Page 3: ...splay 1400 11 PHONES 1311 ANALOG OUT 1306 3 MARK WRITE 1413 12 BALANCE 3311 B DIGITAL IN 1315 MARK ERASE 1417 13 REC PAUSE 1403 DIGITAL OUT 1315 RENUMBER 1412 APPEND 1406 C VOLTAGE SELECTOR 1203 DIG lANALOG 1409 REC MUTE 1407 D MAINS 1202 4 RECORDING LEVEL 3312 14 TEXT 1410 5 PREVIOUS 1415 TIME 1418 6 STOP 1404 COUNTER RESET 1411 7 PLAY 1402 15 DOLBY B C NR 1405 8 NEXT 1414 16 REPEAT 1420 9 BACKWA...

Page 4: ...raal Houd componenten en hulpmiddelen oak op ditzeltde potentiaal CJ AVVERTIMENTO Tutti Ie e parecchi semi conduttori sono sensibili aile scariche statiche ESD La loro longevita potrebbe essere fortemente ridatta in caso di non osservazione della piu grande cauzione alia loro manipolazione Durante Ie riparazioni occorre quindi essere collegato alia stesso potenziale che quello della massa dell app...

Page 5: ...DISMANTLING INSTRUCTIONS DEMOUNTING COVER B A 5 L HAS 109Q G E F 5 pes 60 389 ...

Page 6: ...T C If the tray does not move properly you can use a screw driver K M PULL ON BOTH SIDES pes 60 390 6 J PULL F C TURN GEARWHEEL BACKWARDS Et rJ G HAS I091 6 L PULL I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ...

Page 7: ...DEMOUNTING DIGITAL BOARD 7 A f t l i C D B ff Ti r I i I I K t f t i T I I I OUT F PUSH AND PULL HAS I09 8 pes 60 391 ...

Page 8: ...DEMOUNTING POWER SUPPLY MAIN PANEL TAPE DECK HAS I093 11111111111111111111111111111111111111111 888 __ I I 1 _ _ T _ J I I I J 1 r 1 _ 4 __ _ I II __ j _ I I 1 1 I I __ It I I B _ I A 9 10 pes 60 392 ...

Page 9: ...G AND CLOSING SERVICE COVER G A CUT OUT AND REMOVE SERVICE LOCK A CUT OUT AND REMOVE SERVICE LOCK A CUT OUT AND REMOVE SERVICE LOCK c B TURNAROUND 180 DEGREES TURNAROUND 180 DEGREES HAS 1094 11 12 pes 60 393 ...

Page 10: ... e S interlace SCL SWS FDA I CaPSta r 1605 1 L I A driver i motor yB u IIIIIillIIl e S interlace SCL SWS FDAC FDA l l I 0 S interlace SBCL CLAB SBWS MUTE 1 DATAO 7 EDO 7 FLAGt FLAG2 L 1 ADRSO 7 RASN WRN RDATAO RD Quick reverse If WDATA WCLOCK Peak Tape end 1706 1707 1708 1 0 TCHO 7 CHO 7 TAUX AUX detection detection sensor illJIJ 0 WCLOCK WDATA IR EYE fDl 1 S interlace SCL SWS SDA I Gl CLOCK DATA ...

Page 11: ...te DAC auxiliary channel output auxiliary envelope azimuth check control line control line control line control line control line channel n control line 15 8 address lines to DRAM to locate an address for writing data into or reading data from memory DAI input for serial data from AD convertor see also S DATA Serial data output source selection Analog signal left right channel playback analog comp...

Page 12: ...r symbol transfers between ERCO and DDSP FLAG2 DDSP acts as the master see also ED8 and ED9 DCC RESET Main P ADAS control line Reset output for Main P for digital board FLAGI DAI gnd error flag Error flag input Main P DAI FLAGO DAI n c error flag Error flag output Main P DDSP FRESET SBC SBF filter reset Reset output from SBC to cause a general reset for SBF DEEMDAC SBC H DAC deemphasize DAC Contro...

Page 13: ...T interface of the DAI in case LTEN on SBMCLK output The nominal frequency is 6 144 MHz LT DAI DAI 1 See also SBMCLK LTEN lP DDSP LTenable DDSP Activates the LT interface of the DDSP in case LTEN on IRQU DAI lP information request Control line to indicate the main microprocessor infor LT DDSP DDSP 1 microprocessor mation can be read LTENDEQ lP DEQ LTenable DEQ Activates the LT interface of the DEQ...

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Page 16: ... f read amp voltage input DEQ inputs via VIN time multiplexed data from read amplifier See also RDMUX VIRGIN DEQ DDSP Virgin detection Control output of DEQ to inform the microprocessor if a blank tape is inserted See also SEARCH WCLCK write amp f DDSP write clock Clock signal for the write amplifier as timing reference f 3 072MHz See also WCLOCK WCLOCK DDSP write amp write clock Write clock for w...

Page 17: ...eful for service purposes In the extended playback mode the error rates C1 error flags from DDSP are shown on the display Also the tape channel for the digital eye output olthe DEQ2 pin1 can be selected Display format DIG EYE CH x x indicates the tape channel selected for the digital eye output of the DEQ2 pinl 3 Press TEXT to increase no of tape channel Press TIME to exit selection Display format...

Page 18: ... m 3326 right Check level meter cassette main board shows 6dB RDMUX LEVEL Use 0 9 6kHz calibration check only 1 2Vpp 1 OOmV cassette read write board RECORDING CURRENT read write board PLL FREQUENCY Disconnect cable from digital in plug Use counter switch to 3550 adjust to 7 25MHz RECORD PAUSE O 15 0MHz digital source digital board Prerec DCC Atime Rtime TOC TNo TEXT Super user tape Atime Rtime TN...

Page 19: ...and the analog output may be affected Do not use a head demagnetizer etc WARNING DO NOT USE A DEMAGNETIZER CASSETTE Adjustment remark recording current For each head a recommended recording current exists individually 120 180mA If this value is not adjusted correctly the RDMUX value does not match between a self recorded tape and prerecorded tape Moreover if a recording is made at a deep layer wit...

Page 20: ...ING IlDUNTING A EXAIIPLES A PAIR IIrUI RS SWlER eO 5 0 8mm IJERI SOlIJERlNG TIlL SWlER 8 3 Slc id eO 5 0 8mm B J U c A SOlIJERl IRON ctEAltNG SOlDER W J r l WEllER r l solder tip PT H7 PRECAUTIONS S R flCE PA J AGE SOlDERING GJ d j CS 45 928 30 ...

Page 21: ...f RTRRCKS OF fLEI feB fReINe o I TOIIRNOSNfROIlIRlTf PCB 1701 I J7US BO07 B033 BODI r I 1 r j J 251 8 I rg 1 325 1 J322 J 111 1 1 1 1 L r PCB 3 J 324 1 1323 MAIN BOARD 1 ID02 1 L r h IN Uf i IC C __L 7 r I I 1 I II ISOS I 1501 1 I PCB 5 II 1 DIGITAL BOARD 100 1503 1 I 1 I 1 1 1 1502 1 I I 1 1 1 lSOI r L 1 I I I 1 1 1 BDRIIO TO 8DRI O CDNN CTDIIS I BODS I I I 1425 510 f J1 PCB 1426 CDfPflSJOC L _ B...

Page 22: ...3212 14 3213 3Z14 I 3115 El3 3211 14 3211 Ell 3219 3 3120 3 3nl 13 3121 13 3123 13 3114 1110 31Z5 110 3226 It 3127 15 32111 15 3230 IS 3231 15 323Z IS 3233 Olt 323 GIO 1 5 II 9 UIS 810 32 7 9 3UIS 8 9 JUD DID 32 1 DID Jl t2 DID 3243 f 7 3244 F 7 3245 F 7 32 5 F IS 3241 II lJ5ll 1I16 1351 Ill 13S2 IlH 1353 III IlSl 813 1155 C lJ61 B t 2362 I t l J63 3 236 I l161 8 3 2361 3 2311 81 2112 6 l Jlt 8 1 ...

Page 23: ... DUl 3353 3363 _ 2359 II DV r c t lD d_I8 j k OUI T 11 7315 7313 I I 10 DRHI ollTII OATil ROGllAn REWIND 0 127 3279 JV FAST 7364 I Uh X IO O 1 I j i4 4 J lr 7343 L 1 J 15 100t lU 111 _b I 3355 J MJp100t lU 12 7371 1 Be858 V B0848 3332 L I SILENCE 4 9Y 51LENF 3 nEnORY EnDRY IIINO 2 BV 128 I 131 iL 1 7363 1 3V 7 0 I X 97 106 104 O 3361 t 17 40 OV 2351 1 f I 58 1 r ftJ 3333 3331 J 309 J 87 i2J 3319 i...

Page 24: ...g I J I __ I __ II n_ 1 _ r S r ln N _ _ S I_ V O W J T j M eLK DRTRl 5 0 A 25Ii OR IITTDR L 35 SYNC RESI LD 1 Ir_ _ T CNrDTO FRon HERDa DRTAI A V 36 Cl OfEnDA 61 fRESET HODONE o 4 I _ 7 1_j LT ClK N HERID 7509 OR AO 37 NS 7503 FDIIf TIf 1 t ii fOIR 7502 T13a9 0 3518 9542 26 OIGOfF BOARD I HfRZO SAA2031 SCNrST2 J8 3503 3502 38 56FS SAA2021 TESTI I l 50 11 CRlE SAA2011 Tl4 2515 U 25 T ORIR 39 ROnD ...

Page 25: ...UT NOT RELIABLE AUX ENV LABEL I I pI IT In f I M IWI U I Ch l 0 5 VlDIV 50ms Ch 2 0 5 VlDIV 50 ms AUX ENV LABEL I I ll m 1 f III W 1 t 1IJ1I1nY a I IfI 1 1 I I I Ch l 0 5 VIDIV 50ms Ch 2 0 5 VlDIV 50 ms START MARKER CORRECT DETECTION IMPOSSIBLE AUX ENV LABEL I JIll1 1 11m h l III 1In NIL l III I I I I 1 Ch l 0 5 VlDIV 50 ms Ch 2 0 5 VlDIV 50ms TCHO TCHl TAUX I 11111 IIII I I i III I I 11 I I Tni l...

Page 26: ...Ch 3 0 5 VlOIV 200 s SET INH SET OAT I I I l I I r r Ch 1 1 VlOIV 500 ns Ch 2 1 V OIV 500 ns Ch 3 1 VlOIV 2 s Ch 2 1 VIDIV 2 s Ch l 1 VIDIV 2 s nn h n non w 1r Mn r Mr 11llV left right I M tflil 1 1 lC I lIf I 2 bit SWS FDA SCL Ch 3 1 VlOIV 10 SSWS 1 f Tl le hf L _ ri gth I L l Ch 2 OV IV SSOA iJl1rv w 1 8 bi j1 L l l l I CS 45 934 42 ...

Page 27: ...NECTED TO 50 1501 C 2 I 02 0 2 1503 F 2 1504 G 2 1505 H 3 1503 B 6 2504 B 5 2506 F 5 2508 G 5 2509 G 5 2510 F 4 2511 F 4 2514 0 4 2517 G 3 2523 C 5 2524 C 4 2525 0 6 526 E 6 2527 F 5 2529 0 4 2530 H 3 2531 E 4 2532 E 4 2534 0 4 2535 H 2 25 6 G 2 2537 G 2 2538 C 5 2539 C 4 2540 0 2 2544 G 6 2546 0 3 2550 F 4 2551 B 2 2552 B 2 2558 C 3 2559 8 4 2561 F 4 2564 E 2 2565 F 3 2566 F 3 2567 F 3 2568 E 3 2...

Page 28: ...8 E6 345 E6 112 1 9 1423 E3 3452 E e 409 1424 52 3453 E 511 m 1425 E 3454 E5 E 2431 C 3455 E5 e e 113 43 52 3456 0 e 51 e 2435 345 02 2438 3456 E 2437 3459 E5 55 2438 C 3460 52 2441 0 346 02 m 24 C15 3462 0 C13 3463 E6 4 C13 3464 D 5 AI2 540 C3 B15 B13 3104 11330321 B COMP C12 12 B15 92 B16 13 C13 3104 11330321 COMP 52 B15 9244 24 E 21 E3 2451 E6 22 E3 2452 09 53 09 02 52 2454 B 403 52 3400 05 E 1...

Page 29: ... 8DR1l01 dee 181 19 LIS 3446 I 4 HIS 3441 I 2 I I 3448 J 5 I 4 3449 J I I 1 3451 H 5 13 3419 n 1 3441 1 1 3442 NI1 3443 1 16 3444 nl6 3445 12 i 3436 3431 3438 3439 3440 33 1 5 31 3431 JI1 3432 L11 3433 1 11 3434 nl1 3435 J 1 U 32 29 H2O LZO H2O HI 3426 3421 3428 3429 3430 D I K21 HZI K20 H2O LZO 16 BIT NTERRUI Tr T L i1nER COtlNTEIl COItIIlDlLEII i1nER CDLIlTEIi f Zzz I 16 81T CLlX lTInl G CONTROL...

Page 30: ...8B 1 I 2N2 I G 1 3776 rio 3717 2773 I c J t 1 1 __ _ I 20 20 PROTEC TlON OR TO OJ I 1 VOLTRGE REFERENCE 19 19 6lR RQ R I I c I 18 I I N I r g 179I I l 3787 3788 I 17 MFRI 7104 IDA1316 rt M J 8K2 5702 J75I 11S r _rl ofc t 1 I r 2 r U 1 2 0 j l J l I 1 I w Im t5RIl 12 II 10 9 6 7 6 5 4 3 2 I 5704 r 1S r J h I r h I r22N 02 I I Il 59 I I I __J2 56 7711 1 1 60 I 3766 100 1 Mfll Jjl L RIlE EN Ronux USE...

Page 31: ...I 2754 F 3 2755 F 3 3759 R 2 2760 6 2 rsfEI 2762 F 2 3760 6 2 I I 2761 E 2 2763 F 2 3761 6 4 2765 F 4 2764 F 2 3762 B 4 I I 0 o 2769 o 3 2766 G 2 3772 C 2 l rs WJ 0 3701 A 2 2770 o 2 3773 C 2 3729 A 3 2771 o2 3774 C 2 3730 6 3 2772 E 4 3775 C 2 rm g gI 3739 R 4 2773 F 3 3776 o2 3740 6 2774 C 2 3777 C 2 3751 F 2775 F 4 3778 F 4 3756 F 2776 E 3 3779 F 3 I 3763 F 3 2777 C 3 3760 F 3 g rm g EJ E 3765 ...

Page 32: ...Exploded view L oadmg Assy 212 A 1 J I REO l I IS TAPE TRANSPORT 1 perate exploded vie I I I I I I I I I I 1 3 25 PLASTITE TORX I h _ I 3 12 PLASTITE TORXI2x CS 45 940 55 56 ...

Page 33: ...3 4822 466 93225 L1FTPLATE 214 4822 403 70849 HINGE FRONT 216 482240230169 CATCH LEVER ASSY 217 4822 492 33386 SPRING CATCH LEVER 218 4822 528 90639 ROLLER 219 4822 466 93226 STABILIZER 562 482250221281 SCREW CATCH LEVER 4822 502 21282 SCREW 2 x 5 PLASTITE 4822 502 13886 SCREW 2 x 6 PLASTITE 4822 502 21283 SCREW M 2 5 x 4 TRAY INDICATION BOARD 1325 __ Ii TRAY MOTOR 1435 TO 1423 FRONT BOARD 6 TRAYI...

Page 34: ...remove the DCC head 1 1 Remove bearing clamp pos 140 1 2 Insert mounting support 4822 403 70846 1 3 Turn DCC head to bring tooth segment lever pos 65 in correct position See fig 2 f fig 2 fig 3 3 1 Check if the tooth segment lever pos 65 is in the correct position 3 2 Insert DCC head so that ribs on the head align to the ribs of the tooth segment lever 4 1 Insert bearing clamp 4 2 Remove mounting ...

Page 35: ...OLLER RIGHT 16 4822 492 71106 SPRING PINCH ROLLER RIGHT 18 482253593315 TAPE GUIDE RIGHT 24 4822 403 20241 LEVER PINCH ROLLER LEFT 26 482249271107 SPRING PINCH ROLLER LEFT 28 482253593314 TAPE GUIDE LEFT 34 482235831241 DRIVING BELT 50 4822 528 70793 PINCH ROLLER 51 482252010747 COUNTER BEARING PLATE RIGHT 60 4822 528 70793 PINCH ROLLER 61 482252010747 COUNTER BEARING PLATE LEFT 70 482250230236 SC...

Page 36: ... DIAGRAM TAPE TRANSPORT from Solenoid polarity don t care 10 f J OR VIEW A Tape End Sensor to winding to capstan motor motor motor I VIEW A Winding motor Solenoid to read write board 1701 1702 CS 45 943 61 62 ...

Page 37: ... ASS 111 lOIl 108 CHllon HIGH I I INTtRCOIiN CnOIl aDARD 104 l l 1 I J108 1705 l I S EN I fOR SHIElOINCr SOlEIIO O ON IIIIID 1_ l_no N I I l i 1 I I 1102 1 4 L_ d C1 ll 1 r j IIJll liIT IW SlRN r _ PVC l A r 10 PCaIi I lIXC INI I 1 I l i I REDl DECK ELECTRONIC f 1 TAP COUIfTtR SENSOR 1 r i I OEII I 7703 I I Y 1f l I I _ _ i I I I I 1 I 1101 R 3 110 C 3 1105 C 5 1106 C 3 1701 5 1708 6 1115 R 2 3106...

Page 38: ...EXPLODED VIEW N pes 60 394 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I i i _ itA I J I I I I I I I I I I I I I I 66 HAS I095 AHT31 92 0000 ...

Page 39: ...RROD 251 254 482246241715 FOOT 255 258 482246241479 FELT 272 277 482250221287 P3 X 10 300 a 4822 321 10249 MAINS CORD only 100 301 a 4822 321 10719 MAINS CORD only 105 302 a 4822 321 10492 MAINS CORD only 106 302 a 4822 321 10788 MAINS CORD only 117 308 4822321 22832 SBC1072 309 4822321 22832 SBC1072 314 4822321 61452 365 4822 218 10492 RH6923 00 Not mentioned parts are only available during produ...

Page 40: ...1 42661 330nF 5 63V 68 PCS 60 396 2340 5322 121 42661 330nF 5 63V 2395 4822124 40246 4 71lF 20 63V 2341 532212232531 100pF 5 50V 2396 4822 122 32927 220nF 80 20 50V 2342 5322 122 32531 100pF 5 50V 2397 482212441583 O 681lF 20 25V SIP 2343 4822 126 10002 100nF 20 25V 2398 482212233177 10nF 20 50V 2344 4822 126 10002 100nF 20 25V 2399 4822 124 80409 2200llF 20 16V 2345 4822 122 32999 2 2nF 5 NPO 245...

Page 41: ...00k 5 O 1W 3235 4822051 20153 15k 5 O 1W 3290 4822 051 20104 100k 5 O 1W 70 pes 60 398 3291 4822 051 20759 7505 0 1W 3346 4822051 20222 2k2 5 O 1W 3292 4822 051 20228 2025 O 1W 3347 4822 051 20472 4k7 5 O 1W 3293 4822051 20228 2025 O 1W 3348 4822051 20473 47k 5 O 1W 3294 4822 051 20681 68005 O 1W 3349 4822051 20473 47k 5 O 1W 3295 4822051 20561 56005 O 1W 3350 4822051 10102 1k 2 O 25W 3296 4822051...

Page 42: ...051 10008 on 5 O 25W TRANSISTORS IC s 4157 4822051 10008 on 5 O 25W 4158 4822051 10008 on 5 0 25W 4159 4822 051 10008 on 5 0 25W 7200 482213042513 BC858C 4160 4822051 10008 on 5 0 25W 7201 532220960749 LM2931 Z 5 0 4162 4822 051 10008 on 5 O 25W 7202 4822 13042513 BC858C 7203 4822 130 40995 B0434 4163 4822 051 10008 on 5 O 25W 7204 532213042136 BC848C 4164 4822 051 10008 on 5 O 25W 4165 4822 051 1...

Page 43: ...2 4822 126 10002 100nF 20 25V 2595 5322 122 32531 100pF 5 50V 2596 5322 122 32531 100pF 5 50V 2597 5322 122 32531 100pF 5 50V 3538 4822051 20223 22k 5 0 1 W 2598 5322 12232531 100pF 5 50V 3539 4822051 20223 22k 5 0 1 W 2599 5322 122 32452 47pF 5 63V 3540 4822 051 10102 1k 2 0 25W 2601 5322 122 32452 47pF 5 63V 3541 4822 051 20472 4k7 5 0 1 W 2602 5322 122 32452 47pF 5 63V 3542 4822051 20104 100k 5...

Page 44: ...CT SWITCH 3421 4822051 20104 100k 5 0 1W 3422 4822051 20104 100k 5 0 1W 1409 482227613114 TACT SWITCH 1410 482227613114 TACT SWITCH 3423 4822 051 20563 56k 5 0 1W 1411 482227613114 TACT SWITCH 3424 4822 051 20563 56k 5 0 1W 1412 482227613114 TACT SWITCH 3425 4822051 20102 1k 5 0 1W 1413 482227613114 TACT SWITCH 3426 4822051 20102 1k 5 0 1W 3427 4822051 20121 120n 5 0 1W 1414 482227613114 TACT SWIT...

Page 45: ... 482213061207 BC848 7466 482213061207 BC848 7467 482213061207 BC848 7468 482213061207 BC848 7471 4822 209 32002 NJM5532MD POWER SUPPLY PANEL TRANSISTOR MISCELLANEOUS 7201 482213041324 BC327 40 1202 A 4822 265 31015 MAINSINLET 1202 A 4822 265 31016 MAINSINLET only 17 1203 A 4822 272 10269 VOLTAGE SELECTOR 1204 A 4822 276 13277 MAINSSWITCH 1205 A 4822071 51602 FUSE Tl 6A 1205 A 4822 253 50137 FUSE T...

Page 46: ...k behind the Philips logo CORRECTIONS TO THE SERVICE MANUAL Partslist of RED1 tape transport page 60 Service codenumber of capstan motor item 1023 should read 4822 361 21646 Partslist of digital board PCB5 page 76 Service codenumber of AID converter AK5339 item 7514 should read 4822 209 33849 SERVICE TOOLS Dolby testcassette MTI 150 is available under service codenumber 4822 397 30271 Dolby testca...

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