Philips CDR 785 Service Manual Download Page 38

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7-1

2A 125V

USA

120/2

USA

1000p/1k

USA

100k

USA

100k

USA

470k

USA

150/200

USA

2200pF

USA

D111

USA

D112

USA

470k

USA

Switched Mode Power Supply, EU+USA versions, 000330

(SSRA951UC combined)

2SC5241

USA

2SK2177

USA

ON3131 or PC817 or PS2501

USA

D111

AG01A

USA

D112

P6KE150 or Z2150U

USA

.......

USA

for USA version only

LEGEND

EU version

USA version

Switched Mode Power Supply /

EU + USA version (/00/17)

to Interface Board

1305

to CDR module

1501

30V

15V

6.8V

22V

150V

4,4/0V

0,25V

4,1

0,4V

loating

0,25V

+0,6

-1,2

-29,3

2,2V

-8,4

0,8V

typ.-25V

typ.-21V

300V

3,9V

4,9V

3,9V

2,4V

-31,5V

-29,5V

-30,2V

1,2V

4,4V

300V

0,1V

8,5V

-0,1V

-0,3V

4,8V

UNLESS STATED OTHERWISE

MAINS VOLTAGE 230V

. . . V

DC VOLTAGES MEASURED IN

STOP MODE

EVM

for orientation only

Summary of Contents for CDR 785

Page 1: ...AL12 ANALOG FINALIZE ALC TEXT TOTAL TRACK TIME TOTAL REM STEP DIGITAL CDRW CDRW COMPILE DISC ALL PROGRAM RECORD IN PROGRESS SHUFFLE REPEAT TRACK EDIT REC TRACK TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 12 OPTICAL12 ANALOG FINALIZE ALC TEXT TOTAL TRACK TIME TOTAL REM STEP DIGITAL CDRW CDRW COMPILE DISC ALL PROGRAM RECORD IN PROGRESS SHUFFLE REPEAT TRACK EDIT REC TRACK TIME 1 2 3 4 5 6...

Page 2: ...t 120Ω channel difference 3dB at 1 kHz channel crosstalk 50dB at 1kHz AUDIO PERFORMANCE 3CDC module To be measured on ANALOG OUT socket frequency response 20 20 000 Hz 0 6dB signal noise ratio 115dB 120dB A weighted distortion 88dB at 1 kHz 91dB typ channel difference 0 5dB at 1 kHz channel crosstalk 115dB at 1kHz 120dB typ de emphasis 0 or 15 50µs switched automatically by subcode on the disc las...

Page 3: ...6 49 YES 20 26 87 PLAY 20 26 53 2 9 20 26 33 20 26 32 STOP 20 26 54 5 20 26 50 6 20 26 52 PAUSE 20 26 48 SHUFFLE 20 26 28 REPEAT 20 26 29 CD1 20 20 55 CD2 20 20 56 CD3 20 20 57 CDR 26 26 63 RC5 code RC283505 130300 Remote Control RC5 commands RC283505 TECHNICAL SPECIFICATION L R LEVEL METER e g Sennheiser UPM550 with FF filter S N and distortion meter e g Sound Technology ST1700B DUT CD Use Audio ...

Page 4: ...F R O N T B O A R D I N T E R F A C E B O A R D H E A D P H O N E M I C B O A R D SWITCHED MODE POWER SUPPLY NTC loccation of pcb s 240200 KEY BOARD RIGHT KEY BOARD LEFT LOCATION OF PRINTED BOARDS picture 1 ...

Page 5: ... which are identical with those specified be used Safety components are marked by the symbol i Le norme di sicurezza estigono che l apparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambiago identici a quelli specificati Componenty di sicurezza sono marcati con ñ Veiligheidsbepalingen vereisen dat het apparaat in zijn oorspronkeliijke toestand wordt teruggebr...

Page 6: ...e your own high quality audio CDs subject only to legal restrictions on copying either by recording at normal or high speed from the Changer to the Recorder or by recording from an external source And naturally you can also play all pre recorded audio CDs using one or both decks individually This manual gives instructions for operating this CD recorder where the figures 1 throughout the text indic...

Page 7: ...K TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 12 OPTICAL12 ANALOG FINALIZE ALC TEXT TOTAL TRACK TIME TOTAL REM STEP DIGITAL CDRW CDRW COMPILE DISC ALL PROGRAM RECORD IN PROGRESS SHUFFLE REPEAT TRACK EDIT REC TRACK TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 12 OPTICAL12 ANALOG FINALIZE ALC 1 2 7 8 9 0 3 4 6 5 º ª For recording make sure to use special audio discs only These...

Page 8: ...RW disc CD R unfinalised CD R disc inserted CD RW unfinalised CD RW disc inserted 9 DIGITAL digital input selected for external recording OPTICAL optical input selected for external recording ANALOG analog input selected for external recording microphone input active 0 ALC Auto Level Control active FINALIZE lights up during finalizing a recording RECORD IN PROGRESS Lights during recording L R indi...

Page 9: ...ned Recording WAIT when STOP 9 is pressed during recording the first 4 seconds of a track UPDATE updating disc contents DISC FULL no more recording possible AUX DIGITAL digital coaxial input 1 selected AUX OPTICAL digital optical input selected AUX ANALOG analog input selected COPY PROTECT no digital recording can be made of the external source NOT FINALIZED when opening the tray with an unfinaliz...

Page 10: ...fers Please refer to the user manuals for your other audio equipment first Digital recordings optical or coaxial give the best performance in audio and usability e g auto track The digital optical connection is less sensitive to external disturbances If your equipment does not offer digital connections the high quality Analog Digital Convertor of your set will ensure very good audio performance wh...

Page 11: ...RD JOG CONTROL NO YES REC TYPE ERASE FINALIZE REC LEVEL BALANCE TEXT PROG TRACK EDIT OPEN CLOSE PHONES REPEAT CD TEXT SHUFFLE DISPLAY CD CHANGER AUDIO CD RECORDER 85 CD TEXT EDITING TEXT TOTAL TRACK TIME TOTAL REM STEP DIGITAL CDRW CDRW COMPILE DISC ALL PROGRAM RECORD IN PROGRESS SHUFFLE REPEAT TRACK EDIT REC TRACK TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 12 OPTICAL12 ANALOG FINALIZ...

Page 12: ...INALIZE ALC COMPILE CD TRACK PROG SHUFFLE REPEAT ALL EDIT CD 1 CD 2 CD 3 OPEN CLOSE PLAY PAUSE ON OFF REPEAT CD TEXT SHUFFLE DISPLAY CD CHANGE CD text PLAYING 17 English Note Only Audio CDs will be accepted in the CD changer deck If a non audio disc is inserted the display shows WRONG DISC 1 Press OPEN CLOSE to open the disc compartment OPEN CDC lights up 2 Insert CDs in the two outer disc trays l...

Page 13: ...DRW CDRW RECORD IN PROGRESS REC TRACK TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 OPTICAL ANALOG FINALIZE ALC COMPILE CD TRACK PROG SHUFFLE REPEAT ALL EDIT CDR AUX CD CD COMPILE CD RECORD JOG CONTROL NO YES REC TYPE ERASE FINALIZE REC LEVEL BALANCE TEXT PROG TRACK EDIT CD TEXT EDITING CD 1 CD 2 CD 3 OPEN CLOSE STOP ON OFF PLAY PAUSE REPEAT CD TEXT SHUFFLE DISPLAY CD CHANGE Programming ...

Page 14: ... Make sure that the CDR W is absolutely free of scratches and dust particles It is advisable to use a CDRW disc for your first try If the disc already contains recordings the CD recorder will automatically search for the end of the last track so that recording can start from there For recordings the minimum track length is 4 seconds You can record up to a maximum of 99 tracks on a disc The minimum...

Page 15: ... already contains a recording the ALC function will become active ALC then lights up on the display If required the recording level can be set first using the REC LEVEL key See Rec Level key under Recording General 1 Make sure that the CDR W is absolutely free of scratches and dust particles 2 Press CD CD to enter into the record mode Both decks will be selected in the display the arrow and the YE...

Page 16: ...tic track increment only works with consumer sources with a digital output signal according to the IEC 958 consumer part audio standard DAT DVD and DCC do not deliver this signal 1 2 3 4 5 6 MN DEF TRACK INCR OPQ GHI CD TEXT JKL ABC BRIGHTNESS Automatic track increment Recording modes CDR AUX CD CD COMPILE CD RECORD JOG CONTROL NO YES REC TYPE ERASE FINALIZE REC LEVEL BALANCE TEXT PROG TRACK EDIT ...

Page 17: ... 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 OPTICAL ANALOG FINALIZE ALC COMPILE CD TRACK PROG SHUFFLE REPEAT ALL EDIT CDR AUX CD CD COMPILE CD RECORD JOG CONTROL NO YES REC TYPE ERASE FINALIZE REC LEVEL BALANCE TEXT PROG TRACK EDIT EDITING TEXT TOTAL TRACK TIME TOTAL REM STEP DIGITAL CDRW CDRW RECORD IN PROGRESS REC TRACK TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 OPTICAL ANAL...

Page 18: ...IGITAL CDRW CDRW RECORD IN PROGRESS REC TRACK TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 12 OPTICAL12 ANALOG FINALIZE ALC COMPILE CD TRACK PROG SHUFFLE REPEAT ALL EDIT Erasing from a CDRW disc TEXT TOTAL TRACK TIME TOTAL REM STEP DIGITAL CDRW CDRW RECORD IN PROGRESS REC TRACK TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 12 OPTICAL12 ANALOG FINALIZE ALC COMPILE CD TRACK PROG...

Page 19: ...der 3 Press TEXT to enter into the text edit menu TEXT lights up and TEXT EDIT is displayed 4 Press YES to confirm 5 Rotate JOG CONTROL to select either ALBUM ARTIST ALBUM TITLE ARTIST TR 1 or 2 3 for editing the artist of track 1 or 2 3 TITLE TR 1 or 2 3 for editing the title of track 1 or 2 3 6 Press YES to confirm the selection 7 Rotate JOG CONTROL press the alphabet keys on the remote control ...

Page 20: ...blem by following these hints consult your dealer or service centre LASER SAFETY This unit employs a laser Only a qualified service person should remove the cover or attempt to service this device due to possible eye injury You can create a track by marking a passage of music within one track on the current disc This new track can be used for recording or playing The minimum track length is 4 seco...

Page 21: ...emove 9 screws as shown in picture 2 Raise top cover at the rear and pull it backwards Dismantling the Tray Cover picture 3 picture 4 bottom view To release the cover from the catch on the tray pull it frontwards on bottom side as shown in picture 4 Pull the cover up ...

Page 22: ...er first see description before Disconnect flexfoil cables to interface board and CDR module Release catches on top as shown in picture 5 and turn front cabinet away Take care of the flexfoil cables connecting the key boards Place front cabinet as shown in picture 6 Remove screw on front side first see pictures 7 picture 7 ...

Page 23: ...in picture 8 Put the tray back and move the complete module backwards to release catches on bottom cabinet for orientation see picture 9 and 10 picture 8 picture 9 picture 11 Pull the module on front side up and turn it out as shown in picture 10 Put the module to a proper service position see also chapter SERVICE HINTS To get the set operating mount front cabinet and connect flexfoil cables to fr...

Page 24: ...ule Remove 3 screws as as indicated in picture 12 Disconnect all cables Move the module backwards to release the catch on pos 205 see exploded view Raise the module on the rear and turn it out picture 12 picture 13 Fixation by a catch on right front side ...

Page 25: ...ews as as indicated in picture 14 Release the catches on the plastic supports Move the board backwards to release the catch on left front side Lift the module on the rear and turn it out remark space to CDR module will be very tight picture 14 picture 15 Fixation by a catch on left rear side ...

Page 26: ...295 50145 Audio signal disc SBC 429 4822 397 30184 Playability test disc SBC444 4822 397 30245 Test disc 5 disc without errors Test disc 5A disc with dropout errors black spots and fingerprints SBC 426 426A 4822 397 30096 Burn in test disc 65 min 1kHz signal at 30dB level without pause 4822 397 30155 HANDLING CHIP COMPONENTS ...

Page 27: ...or repairs on Front Board Power Board Interface Board Service position Key Boards After dismantling the front cabinet as described in chapter 4 2 the front unit can be placed on 3CDC and CDR module and be re connected again picture 16 picture 17 ...

Page 28: ...tle front cabinet as described in chapter 4 2 Dismantle Headphone Microphone Board and put it through the opening for the 3CDC tray in front cabinet Mount front cabinet provisional and re connect flexfoil cables to Front Board Dismantle the 3CDC module as described in chapter 4 2 to 4 3 and place it in the desired service position ...

Page 29: ...CD RW reflects much less light than an ordinary CD DA the gain of the HF amplifier stage and the sensitivity of the ADC inside the Signal Processor must be increased to find the focus point In normal play mode high low gain is switched automatically In Service Test Mode with the TRACK EDIT button the gain sensitivity can be toggled manually between high or low as soon as the SERVO test has been en...

Page 30: ...sert CD DA disc before starting the test MODULE INFORMATION MAIN BOARD DIAGNOSTIC CDR LOADER TEST DRAM TEST 7702 Display shows DTST1 CHECKSUM TEST 7703 Display shows DTST2 ERASE TEST 7208 Display shows DTST3 ADC DAC TEST 7406 Display shows DTST4 COMMUNICATION TEST DSA BUS Display shows DTST5 Display shows DERR n n number of failed test Display shows next error FFWD 6 button pressed N Y FFWD 6 butt...

Page 31: ...ROL turned cw Display shows for 2s table 2 1 If the ON OFF switch is in the position OFF all other keys are blocked and display will show 29 all time SERVICE TESTPROGRAM VARIOUS TESTS stands for Service mode stands for version number of the software used in the front µP JOG LEFT KEY JOG RIGHT DISPLAY button pressed STOP button pressed N N Y Y Y N Display shows all segments and flags for checking o...

Page 32: ...GND GND 12V 12V 12V 8V 5V AUDIO SIGNAL INTERFACE DIGITAL IN OUT CONTROL INTERFACE SUPPLY INTERFACE 5V 12V 8V 8V GND CD CHANGER MODULE for details see separate block diagram MAINS BOARD for details see separate block diagram CDR MODULE for details see separate block diagram HEADPHONE MICROPHONE BOARD LEFT RIGHT 5V 10V 3V DATA SICL SHR_STR SHR_CL SW_INFO SILD PORE KILL_L DQSY SRDT EBU_OUT uP_CLK KIL...

Page 33: ...ITOR DIODE TURNTABLE MOTOR DISC CD MECHANISM VAM2202 01 FOCUS MOTOR RADIAL MOTOR SLEDGE MOTOR MOTOR TURNTABLE PHOTODIODE HF AMPLIFIER LOADER CONTROL BOARD EN1 DATA STB SHR_CL SICL SILD PORE 7878 MC78L05ACP 7875 7801 3 3V LEFT 7810 7877 RIGHT Laser Control HF AMPLIFIER TZA1024 TZA1025 55 54 56 38 13 18 20 21 23 2 1 5 3 27 29 26 28 10 12 14 13 SWITCH INFO 17 5 9 7 16 15 16 42 40 39 5 17 21 52 57 59 ...

Page 34: ...00 DRIVE HALL FEEDBACK OFFTRACK LLP CDR60PLL ATIPSYNC A1 A2 CALF ALPHA0 TLN MIRN FEN REN RE CONTROL LINES EFM TIMING GENERATOR 1704 2 WIRES 2 WIRES FLASH ROM 7703 DRAM 7702 DSA CDR DATA BUS ADDRESS BUS SUBCODE BUS I2S BUS 1 DOBM CDR I2S BUS 2 4 L3 BUS CODEC UDA1341TS ADC DAC 7406 DIGITAL AUDIO SIGNAL PROCESSOR MACE2 SAA7399 BASIC ENGINE PROCESSOR MAD0 MAD7 MA8 MA17 7270 7701 ADDRESS BUS DATA BUS A...

Page 35: ...C102 switch on off regulation regulation IC251 D251 D252 Q152 R152 C105 C251 D201 D206 C206 CON1 CON2 1 11 7 1 ON OFF 5V EVER F1 F1 38V 5V 5V 5V 12V 12V 8V 8V Q251 Q202 T101 15V 12V overvoltage protection D203 C204 8V C202 D202 C201 5V 5V IC201 Q101 Q104 on off switching transistor reference PC101 Q103 R207 R209 D204 D205 C205 30V F F switching transistor reference Blockdiagram SMPS CDR785 080300 ...

Page 36: ...egulation IC251 D251 D252 Q152 R152 C105 C251 D201 D206 C206 CON1 CON2 1 11 7 1 ON OFF 5V EVER F1 F1 38V 5V 5V 5V 12V 12V 8V 8V Q251 Q202 22V 22V T101 15V 12V overvoltage protection D203 C204 8V C202 D202 C201 5V 5V IC201 Q101 switching transistor reference PC101 R209 D204 D205 C205 30V F F switching transistor sense reference S 3 4 6 2 Isense out on off Vcc GND feedback 5 8 7 1 R Q Vcc BUFFER OVE...

Page 37: ... 11p 8020 180mm 2p 6p 7p 2p 8015 130mm fixed to front chassis together with CDC module 8008 380mm Shielded to be tied together 4x 8010 90mm 7 1 FRONT KEY BOARD LEFT KEY 0 D_GND LED_CON_2 LED_CON_1 LED_CON_0 KEY_GND 1 9 FRONT KEY BOARD RIGHT 12 12 1p ON OFF 5VST 5V KEY 2 KEY 1 5V D_GND LED_CON_7 LED_CON_6 LED_CON_5 LED_CON_3 LED_CON_4 JOG_A JOG_B KEY_GND Componentside view Componentside view FFC 12...

Page 38: ...U USA USA for USA version only LEGEND EU version USA version Switched Mode Power Supply EU USA version 00 17 to Interface Board 1305 to CDR module 1501 30V 15V 6 8V 22V 150V 3V 4 4 0V 5 0 25V 4 1 0 4V floating 5 0 25V 12 0 6 1 2V 29 3 2 2V 8 4 0 8V typ 25V typ 21V 300V 300V 5V 5V 3 9V 4 9V 3 9V 2 4V 2 4V 31 5V 29 5V 30 2V 1 2V 0V 4 4V 300V 0 1V 0 1V 0 1V 8 5V 0 1V 0 1V 0 3V 0 3V 4 8V 6V UNLESS STA...

Page 39: ...t side view USA and European version POWER BOARD copper side view USA and European version C153 C201 R156 R155 R251 R212 R211 R205 R204 R203 R202 R115 R114 J9 R158 R151 R153 R256 R104 R106 R253 R254 R112 R252 R255 C152 for orientation only ...

Page 40: ...Out Osc GND Feed back Osc on off Isense 1 8 4 4 0V 5 0 25V 4 1 0 4V floating 5 0 25V 12 0 6 1 2V 29 3 2 2V 8 4 0 8V typ 25V typ 21V 300V 140V 300V 140V 300V 140V 5V 5V 3 9V 4 9V 3 9V 2 4V 2 4V 31 5V 29 5V 30 2V 0V 4 4V 0 2V 2V 0 2V 2V 8 5V 8V 0 1V 0 2V 0 1V 15V 2V 3 4V 1V 1V 1 4V 1 6V 3 9V 1 5V 3 8V 4 8V UNLESS STATED OTHERWISE MAINS VOLTAGE 230V 110V V DC VOLTAGES MEASURED IN STOP MODE EVM V for ...

Page 41: ...POWER BOARD copper side view WorldWide version C153 C207 R156 R155 R251 R212 C213 R213 R205 R204 R203 R210 R202 C108 C113 R113 R115 R120 R117 C106 R116 R118 R131 R132 R158 R257 R151 R153 R157 R256 R253 R254 C214 R252 R255 C214 C215 C152 J3 for orientation only ...

Page 42: ...13 P12 P11 P10 P9 P8 P7 KEY2 P4 P3 P2 P1 G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G130 G140 G150 P27 P26 P25 P24 P23 I2C_CLK 5V yP C KEY1 LED_CON7 LED_CON6 LED_CON5 LED_CON4 LED_CON3 5V FAN F CWReset ON_OFF LED_CON0 LED_CON1 LED_CON2 KEY0 LED_CON7 LED_CON6 P1 I2C_DATA AnaSw0 AnaSw2 SPLY_ON2 SPLY_ON1 SPLY_ON2 5VST 5V yP C I2CW_DATA I2CW_CLK MUTE AnaSw1 DigSw2 DigSw1 G7 G3 G15 G14 G13 G1 G5 G6 SPLY_ON...

Page 43: ...R785 stage 5 220200 1406 D yP 30V 1 5V 5Vst TEXT TOTAL TRACK TIME TOTAL REM STEP CDRW CDRW COMPILE CD TRACK PROG RECORD IN PROGRESS SHUFFLE REPEAT ALL EDIT REC TRACK TIME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ANALOG FINALIZE ALC DIGITAL OPTICAL 12 12 g a d B9 B16 31 30 B1 2 optical 1 optical 2 digital 1 digital 29 28 b c e B10 B11 B13 B14 B15 right left right left 14 13 12 2 2 5h DISP...

Page 44: ...5 1467 E5 1468 F5 1469 E5 1470 G5 1480 A1 1481 E2 2490 G4 3589 D2 3590 A4 3591 B4 3592 B4 3593 C4 3594 D4 3595 D4 3596 E4 3597 E4 3598 F4 3599 G4 6426 B3 6427 B3 6428 B3 6429 D2 6430 B3 6431 B3 6432 B3 6433 D2 F460 A5 F461 B5 F462 C5 F463 C5 F464 D5 F465 D5 F466 E5 F467 F5 F468 F5 F469 G5 F470 A2 F471 A2 F472 A2 F473 A2 F474 B2 F475 B2 F476 B2 F477 C2 F478 C1 F479 D1 F480 E1 2V 0 6V LEDS on off no...

Page 45: ...5 390R 3621 150R 3614 150R 3618 1449 5V 220R 3629 D 2483 10n F493 10K 3634 F490 F501 F489 1455 KEY 1456 10n 2482 1454 10K 3635 3K9 3626 F514 6435 6436 6423 6425 2480 6424 820R 100p 1N4148 1446 3623 1443 6418 5V 1448 5V 6420 F486 F488 1451 F500 1450 F495 F494 220R 220R 3613 220R 3611 3612 1453 6421 KEY F511 1442 3625 1K8 6417 1N4148 F499 F491 F498 820R 3636 F510 1445 100p 2481 1444 3628 150R 270R 3...

Page 46: ...u 2664 F605 F621 F606 2665 390p 3685 2K2 MIC 3664 22R 3687 100R 3675 1K 3688 100R F610 F633 3670 6R8 F634 MIC F612 5 4 6 2697 100n 2667 47u 3695 B 10K 3661 A 10K 2 1 3 8V 12V HP_L MIC_L MIC_R HP_R 2671 470p 8V 12V 8V 12V Headphone Microphone board CDR785 100300 1491 A1 1492 D1 1690 A10 2661 C3 2662 B3 2663 C3 2664 A3 2665 C4 2666 B4 2667 A4 2668 B4 2671 C5 2672 A5 2673 C6 2674 A6 2680 B10 2681 G2 ...

Page 47: ...0300 MIC AMP HEADPHONE AMP 2682 3682 3681 2681 4603 4605 4604 3689 3677 2661 3663 3664 3678 2662 3675 3672 3671 3674 2680 4601 3684 3683 3686 2686 2688 2685 2687 7680 7650 3688 3690 3685 3687 3665 3666 3676 3673 2666 2672 2697 3668 2671 2665 3667 4606 2661 A5 2662 A6 2665 B8 2666 A8 2671 B8 2672 A8 2680 A10 2681 B1 2682 A1 2685 A5 2686 A4 2687 B4 2688 A5 2697 A10 3663 B5 3664 B5 3665 A5 3666 B6 36...

Page 48: ... F359 F355 F363 F366 F368 F369 DIG F370 F367 ANA1 EBU2 7 14 8 DIG EBU2 DIG 7301 D 74LVU04D 9 DIG DIG DIG DIG DIG DIG DIG 3312 39R DIG DIG 220R 3303 1 2 3 4 6 3306 470R 3311 2K2 5301 6RG 4 5 6 47R 3317 1 7 14 2 EH B 1307 1 2 3 74LVU04D 7301 A 10 3308 7301 E 74LVU04D 11 7 14 5 7 14 6 3K3 2 1 3 3310 100K 74LVU04D 7301 C 3304 1K GP1F32R 6304 9 VDD 16 7 VEE 8 VSS 2311 100n HEF4052B 7302 1 10 11 12 13 1...

Page 49: ... 2366 D10 2367 D10 2368 D9 2373 B11 2374 A14 2375 B14 2376 A13 2377 A14 2378 A13 2379 B12 2380 B13 2385 A16 2386 B15 2388 D14 2396 C15 2397 D16 2398 C14 2399 C15 3300 C2 3301 B3 3302 B3 3303 B3 3304 A4 3305 C2 3306 B2 3307 D3 3308 D1 3309 D1 3310 A3 3311 D3 3312 D4 3313 A12 3314 A15 3315 A16 3316 B9 3318 C2 3319 A12 3320 A12 3321 D16 3322 C16 3323 C15 3324 C15 3325 D15 3326 C13 3327 D15 3328 C14 3...

Page 50: ... F372 3354 1K 3361 ANA1 3394 8K2 ANA1 2K2 3348 100n 2373 2388 100p 8K2 3327 6371 1N4148 3337 1M 2334 3n3 BC817 25 7326 4 5 6 9 16 VDD 7 VEE 8 VSS 1 10 11 12 13 14 15 2 3 4 ANA1 ANA1 ANA1 7321 HEF4052B F382 LM833D 7335 B 5 6 7 8 ANA1 ANA1 10K 3375 1K 3387 ANA1 ANA1 ANA1 F381 F380 F379 10K 3386 ANA1 ANA1 680R 1M 3338 100n 2380 2374 7336 A LM833D 3 2 1 8 4 8K2 3395 F386 F376 3391 1M ANA1 2365 330p AN...

Page 51: ... Diagram part2 8 7 Exploded View 8 8 to 8 9 Mechanical Partslist 8 9 Electrical Partslist 10 15 3CDC99 DS Module 3 Disc Carousel Changer Dismantling Hints A C B B D E Dismantling of Drawer A Pull drawer outwards B Unlock drawer with screwdriver C Lift drawer to demount from chassis Dismantling of Flex Plate D Lift plate to unlock pin from bottom plate E Move plate inwards to demount from bottom pl...

Page 52: ...drive support pos 95 B 6 Replace CD drive pos 100 The wire tree of JST connector has to be desoldered and resoldered on the new CD drive again Service Hints A B Mounting of Carousel 1 Turn gearwheel pos 42 of disc change mechanism by finger until CD drive is in play position 2 Mount carousel pos 115 so that disc is positioned right on turntable Carousel position number doesn t matter Lubrication I...

Page 53: ...5 Connect flexfoil cable to new CD drive 6 Position new CD drive on its studs 7 Remove soldered short circuit from Laserunit see below CHARGED CAPACITORS ON THE SERVO BOARD MAY DAMAGE THE CD DRIVE ELECTRONICS WHEN CONNECTING A NEW CD MECHANISM THAT S WHY BESIDES THE SAFETY MEASURES LIKE SWITCH OFF POWER SUPPLY ESD PROTECTION ADDITIONAL ACTIONS MUST BE TAKEN BY THE REPAIR TECHNICIAN WARNING fig 1 A...

Page 54: ...ODE TURNTABLE MOTOR DISC CD MECHANISM FOCUS MOTOR RADIAL MOTOR SLEDGE MOTOR MOTOR TURNTABLE PHOTODIODE HF AMPLIFIER LOADER CONTROL PCB EN1 DATA STB SHR_CL SICL SILD PORE 7878 MC78L05ACP 7875 7801 3 3V CD LEFT 7810 7877 CD RIGHT Laser Control HF AMPLIFIER TZA1024 TZA1025 55 54 56 38 13 18 20 21 23 2 1 5 3 27 29 26 28 10 12 14 13 SWITCH INFO 17 5 9 7 16 15 16 42 40 39 5 17 21 52 57 59 60 64 1 13 5V ...

Page 55: ...120R 2838 10u 2856 27p 3857 2823 47p 2842 2n2 33R 470R 3853 47u 2839 2844 270p 3866 10K 3 3V 470R 3873 3848 3800 56K 100K 2869 47n 5V MON 4 PWRON 7 RFEQO 10 RFFB 9 RGADJ 14 VCC2 13 VCCL 2 TZA1024 7801 CDRW 11 CFIL 3 CMFB 8 DIN 5 EQSEL 12 6 GND LD 1 22K 3826 3728 10n 2859 1K 3825 4K7 22K 2807 330p 3709 3 3V 3846 33K 10V 3 3V 3806 10K 100R 3897 22K 3828 2892 4n7 180p 2855 470p 2802 3844 4K7 47u 3 3V...

Page 56: ... 3715 H3 3716 A2 3718 C5 3728 B5 3730 B5 3731 C5 3760 B3 3761 B3 3762 B3 3763 C4 3764 C2 3766 B3 3768 J4 3769 J4 3800 D2 3801 D2 3802 D3 3803 D2 3805 D2 3806 D2 3807 D2 3808 D2 3809 D5 3811 D2 3812 G4 3814 D2 3815 D1 3816 E5 3817 E4 3819 B5 3820 E2 3821 E2 3822 E3 3823 F1 3824 F1 3825 G3 3826 E4 3827 E3 3828 F4 3831 C2 3832 A2 3833 F2 3834 F2 3835 H4 3837 E5 3838 D5 3839 E5 3840 E5 3841 E5 3842 E5...

Page 57: ...2 20 21 22 23 3 4 5 6 7 8 1805 1 10 11 12 13 14 15 16 GNDA 22u 2858 10K 470R 3893 10K 3714 3888 22u 2860 3 3V 22n 2875 470R 3706 4U7 5805 2830 10n 2872 47n 1K 3761 1 2 DIPMATE 1878 1 2 1876 DIPMATE 2863 220u 7878 47n 2876 3 3V GNDA 9 Os 10 STR 1 VDD 16 VSS 8 7873 CP 3 D 2 15 O0 4 5 O1 O2 6 O3 7 O4 14 13 O5 O6 12 O7 11 GNDA HEF4094BP 22u 3875 10K 2861 3872 3700 10K 1 EXCK GND 7 MCK 5 SBSO 2 SCLK SC...

Page 58: ... 97 98 97 98 96 98 96 108 106 107 105 23 123 24 21 54 60 25 115 22 100 95 6x 61 82 80 73 74 70 81 83 84 POS 60 48 39 35 38 45 43 50 51 42 52 44 53 40 41 47 46 26 POS 25 EXPLODED VIEW 3CDC99 DS Drawer bottom view ...

Page 59: ...7 PULLEY 0044 4822 522 10493 IDLER WHEEL 0045 4822 358 10115 BELT 0046 4822 466 10735 ECCENTRIC GEAR WHEEL 0050 4822 532 12364 WASHER 0051 4822 532 12364 WASHER 0052 4822 532 12364 WASHER 0053 4822 532 12364 WASHER 0073 4822 502 12548 SCREW M2 6X3 5 0074 4822 502 12548 SCREW M2 6X3 5 0080 4822 528 10937 PULLEY 0081 4822 522 10494 GEAR DRAWER 0082 4822 358 10115 BELT 0083 4822 532 12364 WASHER 0084...

Page 60: ...LAP CDR champagne 9 3103 307 97770 DISPLAY WINDOW PRINTED 10 3103 301 45120 SPRING CDR FLAP 22 4822 462 42159 FOOT silver 22 3104 124 06310 FOOT champagne 23 4822 462 42158 FOOT black 208 4822 459 10887 WORDMARK PHILIPS 212 3103 304 67690 KNOB JOG black 212 3103 304 69130 KNOB JOG champagne 214 3103 304 67670 BUTTON ON OFF black 214 3103 307 98860 BUTTON ON OFF champagne 215 3103 304 67680 KNOB VO...

Page 61: ...482 4822 051 20101 100Ω 5 0 1W 3483 4822 051 10102 1kΩ 2 0 25W 3485 4822 051 10102 1kΩ 2 0 25W 3486 4822 051 20471 470Ω 5 0 1W 3487 4822 051 10102 1kΩ 2 0 25W 3488 4822 051 10102 1kΩ 2 0 25W 3489 4822 051 20471 470Ω 5 0 1W RESISTORS 3491 4822 050 11002 1kΩ 5 0 2W 3492 4822 051 10102 1kΩ 2 0 25W 3493 4822 051 10102 1kΩ 2 0 25W 3494 4822 051 10102 1kΩ 2 0 25W 3495 4822 051 10102 1kΩ 2 0 25W 3497 482...

Page 62: ...TCH 1449 4822 276 13775 TACT SWITCH 1450 4822 276 13775 TACT SWITCH 1451 4822 276 13775 TACT SWITCH 1452 4822 276 13775 TACT SWITCH 1453 4822 276 13775 TACT SWITCH 1454 4822 276 13775 TACT SWITCH 1455 4822 276 13775 TACT SWITCH 1456 4822 276 13775 TACT SWITCH 1457 8203 303 84420 JOG ENCODER CAPACITORS 2480 5322 122 32531 100pF 5 50V 2481 5322 122 32531 100pF 5 50V 2482 4822 122 33177 10nF 20 50V 2...

Page 63: ...20229 22Ω 5 0 1W 3664 4822 051 20229 22Ω 5 0 1W 3665 4822 051 20101 100Ω 5 0 1W 3666 4822 051 20101 100Ω 5 0 1W 3667 4822 117 10833 10kΩ 1 0 1W 3668 4822 117 10833 10kΩ 1 0 1W 3669 4822 052 10109 10Ω 5 NFR 3670 4822 052 10688 6 8Ω 5 0 33W 3671 4822 051 20472 4 7kΩ 5 0 1W 3672 4822 051 20472 4 7kΩ 5 0 1W 3673 4822 117 10833 10kΩ 1 0 1W 3674 4822 117 10833 10kΩ 1 0 1W 3675 4822 051 10102 1kΩ 2 0 25W...

Page 64: ...6V 2392 4822 124 80791 470µF 20 16V 2396 5322 116 80853 560pF 5 63V 2397 4822 122 33575 220pF 5 50V 2398 4822 122 33575 220pF 5 50V CAPACITORS 2399 5322 116 80853 560pF 5 63V 2400 4822 124 40207 100µF 20 25V 2401 4822 124 40207 100µF 20 25V RESISTORS 2374 4822 117 10361 680Ω 1 0 1W 3300 4822 117 10833 10kΩ 1 0 1W 3301 4822 051 10102 1kΩ 2 0 25W 3302 4822 051 10102 1kΩ 2 0 25W 3303 4822 117 11503 2...

Page 65: ...PER 0805 4309 4822 051 20008 CHIP JUMPER 0805 4310 4822 051 20008 CHIP JUMPER 0805 4311 4822 051 20008 CHIP JUMPER 0805 4312 4822 051 20008 CHIP JUMPER 0805 4314 4822 051 20008 CHIP JUMPER 0805 4316 4822 051 20008 CHIP JUMPER 0805 4317 4822 051 20008 CHIP JUMPER 0805 4318 4822 051 20008 CHIP JUMPER 0805 4319 4822 051 20008 CHIP JUMPER 0805 4321 4822 051 20008 CHIP JUMPER 0805 4323 4822 051 20008 C...

Page 66: ...20 50V 2861 4822 124 41596 22µF 20 50V 2862 4822 124 11912 220µF 20 6 3V CAPACITORS 2863 4822 124 11912 220µF 20 6 3V 2865 4822 126 12882 100nF 20 50V 2869 4822 126 12785 47nF 20 50V 2872 4822 126 12785 47nF 20 50V 2873 4822 124 12233 47µF 20 25V 2875 4822 126 11585 22nF 20 50V 2876 4822 126 12785 47nF 20 50V 2877 4822 122 33848 47pF 5 50V 2878 4822 122 10466 220pF 10 50V 2879 4822 126 12785 47nF ...

Page 67: ... 050 21003 10kΩ 2 0 25W 3872 4822 050 21003 10kΩ 2 0 25W 3873 4822 116 83883 470Ω 5 0 16W 3874 4822 050 21003 10kΩ 2 0 25W 3875 4822 050 21003 10kΩ 2 0 25W 3876 4822 116 52234 100kΩ 5 0 5W 3877 4822 050 21003 10kΩ 2 0 25W 3878 4822 050 21003 10kΩ 2 0 25W 3879 4822 050 21003 10kΩ 2 0 25W 3880 4822 116 52219 330Ω 5 0 5W 3881 4822 050 21003 10kΩ 2 0 25W 3882 4822 116 83884 47kΩ 5 0 16W 3883 4822 116 ...

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Summary of Contents for CDR 785

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Philips CDR 785, Service Manual, Page: 38 / 67

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Summary of Contents for CDR 785

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