Philips FW-V795/21M Service Manual Download Page 13

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FRONT CONTROL BOARD

TABLE OF CONTENTS

Front Control Board - Component & Chip layout ............ 5-2

Front Control Board - Circuit diagram ............................. 5-3

IR-Eye Part - Layout & Circuit diagram ........................... 5-3

Key-CDC Part - Layout & Circuit diagram ....................... 5-4

VU Meter Part - Layout & Circuit diagram ....................... 5-4

Karaoke Part - Layout & Circuit diagram ........................ 5-5

Electrical parts list ............................................................ 5-5

5-1

REMARKS :

Summary of Contents for FW-V795/21M

Page 1: ...ard Systems Non Cenelec 7A VCD MPEG 01B Module 8 ETF7 ND Tape Module 9 3CDC LC VCD Module 10 P2002 100W VCD Module 11 AF10 Board 12 VCD GND Isolator Board 13 Set Mechanical Exploded view parts list 14 Copyright 2002 Philips Consumer Electronics B V Eindhoven The Netherlands All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or ...

Page 2: ...LOCATIONOFPRINTEDCIRCUITBOARDS 21M Aux in CDR in x Line Out Surround Out Subwoofer Out Digital Out Video Out x Booster Out x Matrix Surround CD Text Dolby B RDS News Dolby Pro Logic DPL Incredible Surround x Karaoke Features x Voltage Selector x ECO Power Standby Clock Display Off x ECO6 Tuner Board Systems Non Cenelec x ECO6 Tuner Board Systems Cenelec Center Surround Channel Power Booster PWB V7...

Page 3: ...OX Level 1 2 3 OFF Digital Sound Control DSC Digital Rock Pop Newage Classic Electric Virtual Ambience Control VAC Hall Concert Cinema Disco Arcade Cyber Input sensitivity Aux in 500mV 3dB at 1kHz CDR in 1V 3dB at 1kHz Microphone 3 5mV at 600Ω Output sensitivity Booster out Classic Mode 900mVat22kΩ Vol Max Headphone output at 32Ω 700mV 1dB Vol Max CASSETTE RECORDER Number of track 2 x 2 stereo Tap...

Page 4: ...15kHz e g 7122 707 48001 LF Voltmeter e g PM2534 DUT S N and distortion meter e g Sound Technology ST1700B Frame aerial e g 7122 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250Hz to eliminate hum 50Hz 100Hz RF Generator e g PM5326 Ri 50Ω Bandpass 250Hz 15kHz e g 7...

Page 5: ...822 397 30155 SBC429 Audio Signals disc 4822 397 30184 Dolby Pro logic Test Disc 4822 395 10216 ESD Equipment Anti static table mat large 1200x650x1 25mm 4822 466 10953 Anti static table mat small 600x650x1 25mm 4822 466 10958 Anti static wristband 4822 395 10223 Connector box 1MΩ 4822 320 11307 Extension cable to connect wristband to conn box 4822 320 11305 Connecting cable to connect table mat t...

Page 6: ...servazione della più grande cauzione alla loro manipolazione Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dell apparecchio tramite un braccialetto a resistenza Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale Pour votre sécurité ces documents doivent être utilisés par des spécia listes agré...

Page 7: ...ve Cassette Cover Dismantling of the CDC Module and Front Panel Assembly Remove CDC Module 4 Remove the Cover Tray VCD pos 106 as indicated Front View CDC Remove Cover Tray VCD Dismantling of the CDC Module and Front Panel Assembly Sliding out the CDC Tray 5 Loosen 2 screws A and 2 screws B to remove the CDC Module pos 1105 as indicated 6 Remove 2 screws pos 226 at the bottom to separate the Front...

Page 8: ...he VU Meter Board pos 1107 C 1 The Knob Volume Gloss Black pos 117 can be remove by inserting a strong string into the slot and pull it out in the direction as indicated See picture 1 2 The Knob Jog Rotary pos 140 can be remove by inserting a strong string into the slot and pull it out in the direction as indicated See picture 2 Picture 1 Picture 2 Repair Hints 1 Remove 2 screws J and uncatch M1 a...

Page 9: ...of the set 4 Due to the short flex cable wires in the ETF Module the pc board should be disconnected and reconnected on the reverse side of the tape mechanism to keep it electrically connected during repair See picture 3 Note The flex cables are very fragile care should be taken not to damage them during repair After repair be very sure that the flex cables are inserted properly into the flex sock...

Page 10: ...shows 12M Output at Front Display Board pin 19 of uP 2 929 6875Hz Display shows 32K Output at Front Display Board pin 19 of uP 2048Hz QUARTZ TEST TUNER Button pressed Disconnect Mains cord Y N N Y Display Tuner Version ccc Service frequencies are copied to the RAM see Table 1 Tuner works normally except PROGRAM button Service Mode left TUNER TEST TUNER Button pressed N PRESET 1 2 3 4 5 6 7 8 9 10 ...

Page 11: ...OUT DPL DPL D Mute_SW_FR H P Amp 2 50V 85dBA 3dB Vkk M D REG 12V_A CMOS 125mV 26mV 125mV CMOS SUBWOOFER CCT A A A MIC A AUX Line Out LEVELS AT MAX VOL COAX1 FROM CDC DIG D FIS or D 9V1 A 8 5 dB A IS Interface Audio Mute Blue Strip wOOx BassTreble NOTE MAIN SIGNAL PATH MEASUREMENTS ARE IN AUX MODE XX mV YY dBA ZZ dB OUT SIS Filter TAPE 650mV 78dBA 3 2dB 1 25V 86dBA 3 5dBA A A M Attn Mute2 Vkk TUNER...

Page 12: ...TR SHR_DATA DSA_DATA NTC DPL_DATA GND_D_DPL L_PWR_CTRL 1 GND_A GND_D_CDTEXT 1 1 CD_SH_DATA 1701 SICL 1 8 PWR_DN GND_D GND_B A2 DPL_CLK GND_D 1 GND_A SUBWOOFER CD_Left GND_D_CD CD_Right 5V_CD DSA_STR SHR_DATA DSA_DATA GND_D B2 GND_D_COAX SHIELD GND_D_I2C I2C_DATA 1 DPL AMP_ON 19 15 11V_A 11 SICL CD_SH_DATA SILD GND_D_VCD LS GND 11V_A DPL_STR DPL_VOL_CLK HP_RIGHT DPL_VOL_CLK TU_STEREO GND_M GND_A_CD...

Page 13: ...onent Chip layout 5 2 Front Control Board Circuit diagram 5 3 IR Eye Part Layout Circuit diagram 5 3 Key CDC Part Layout Circuit diagram 5 4 VU Meter Part Layout Circuit diagram 5 4 Karaoke Part Layout Circuit diagram 5 5 Electrical parts list 5 5 5 1 5 1 REMARKS ...

Page 14: ...all possible versions For components used in a specific version see schematic diagram and respective parts list 3139 113 3446 pt2 dd wk0116 This assembly drawing shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139 113 3446 pt2 dd wk0116 ...

Page 15: ... GND B 1664 GND B Gnd 3618 GND B 220R 3631 GND B 2 3 MT1 4 MT2 5 GND B 6605 4606 1656 GND B GND B 6606 2604 1663 150R 3630 GND B GND B 3610 3612 270R 3644 GND B 1658 1670 180R 9610 560R 3634 4600 270R 3653 1601 FE ST VK N 1 2 3 4 5 6 7 8 3648 10K 2620 10u GND B 10K 3604 Gnd Gnd 390R 3613 220p 2624 1667 3643 180R 120R 3621 3614 120R 3622 560R 220p 2603 6620 1K8 3617 Gnd 1657 2622 1651 100n 6612 GND...

Page 16: ...A1 3802 A2 3803 A1 3804 A1 3805 A2 3806 A2 3807 A2 6802 A1 6803 A1 6804 A2 6804 GND B 1 2 3 1 3801 220R 6803 6802 3802 220R 3800 220R 1803 270R 3805 GND B GND B GND B GND B 1 2 3 4 5 6 GND B GND B FE ST VK N 1800 1804 1805 390R 3804 560R 3803 150R 3807 100p 2800 1801 220R GND 1802 3806 3139 118 54530 for 89610 3446 pt2 dd wk0116 Note Some values may varies see respective parts list for correct val...

Page 17: ...13775 Tact Switch 1674 4822 276 13775 Tact Switch 1675 4822 276 13775 Tact Switch 1690 2422 129 16385 Rotary Encoder 12P 1691 2422 129 16386 Rotary Encoder 12P 1700 4822 265 11529 Microphone Socket 1701 4822 267 10733 Flex Connector 4P 1702 4822 267 10954 Flex Connector 5P 1800 4822 265 11207 Flex Connector 6P 1801 4822 276 13775 Tact Switch 1802 4822 276 13775 Tact Switch 1803 4822 276 13775 Tact...

Page 18: ...008 0R Jumper 0603 4628 4822 051 30008 0R Jumper 0603 4700 4822 051 30008 0R Jumper 0603 4704 4822 051 30008 0R Jumper 0603 4705 4822 051 30008 0R Jumper 0603 4707 4822 051 30008 0R Jumper 0603 4708 4822 051 30008 0R Jumper 0603 4709 4822 051 30008 0R Jumper 0603 4710 4822 051 30008 0R Jumper 0603 4711 4822 051 30008 0R Jumper 0603 4713 4822 051 30008 0R Jumper 0603 4714 4822 051 30008 0R Jumper 0...

Page 19: ...f m g c e r n d 4G a h j p k b f m g c e r n d 5G a h j p k b f m g c e r n d 6G a h j p k b f m g c e r n d 7G a h j p k b f m g c e r n d 8G a h j p k b f m g c e r n d col Dp 9G a h j p k b f m g c e r n d 10G a h j p k b f m g c e r n d 12G S1 S2 S3 S4 13G 11G S1 B1 B2 B3 B4 B5 B6 a g m d b c e FTD DISPLAY PIN CONNECTIONS CLASSIC POP DIGITAL ELECTRIC NEWAGE ROCK ARCADE CINEMA HALL CYBER DISCO ...

Page 20: ...PLAY BOARD CHIP LAYOUT 6 2 6 2 This assembly drawing shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139 113 3447 pt2 dd wk0119 ...

Page 21: ...Y BOARD COMPONENT LAYOUT 6 3 6 3 This assembly drawing shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139 113 3447 pt2 dd wk0119 ...

Page 22: ...10K 3502 10R 3536 FE ST VK N 1400 1 220p 100n 3582 1K 2517 2578 100n 10K 5402 3537 120R 2u2 5405 220K 3515 10p 2550 13 14 FE ST VK N 1406 1 10 11 12 1K 470R 2544 100n 2506 100p 1N4148 6400 2K7 3505 470R 2K2 3516 3595 470R 3415 GND B 32K768 5403 6403 1N4148 4401 3464 470R 3526 15K 220n 2588 2586 220p 220p 2585 3407 10R 10K 3575 82K 3501 1 2 3 4 5 6 7 220p 2547 100p 2583 FE ST VK N 1407 2589 1u 2587...

Page 23: ...1 4822 126 13883 220pF 5 50V 2542 4822 126 13883 220pF 5 50V 2543 2238 586 59812 100nF 50V 2544 2238 586 59812 100nF 50V 2545 4822 126 13879 220nF 80 20 16V 2546 4822 126 13883 220pF 5 50V 2547 4822 126 13883 220pF 5 50V 2548 4822 126 13883 220pF 5 50V 2549 4822 122 33741 10pF 10 50V 2550 4822 122 33741 10pF 10 50V 2551 4822 122 33777 47pF 5 63V 2552 4822 122 33777 47pF 5 63V 2553 4822 122 33777 4...

Page 24: ...558 4822 051 30221 220R 5 0 062W 3559 4822 051 30221 220R 5 0 062W 3560 4822 116 52175 100R 5 0 5W 3561 4822 116 52175 100R 5 0 5W 3562 4822 051 30103 10k 5 0 062W 3563 4822 051 30103 10k 5 0 062W 3564 4822 051 30221 220R 5 0 062W 3565 4822 051 30221 220R 5 0 062W 3570 4822 051 20478 4R7 5 0 1W 3571 4822 051 20478 4R7 5 0 1W 3572 4822 051 30222 2k2 5 0 062W 3573 4822 051 30103 10k 5 0 062W 3574 48...

Page 25: ... 6 5 43 C D 450kHz 450kHz 450kHz 20 75kHz VStabA VStabB VStabB VStabA VStabB 10 7 MHz 10 7 MHz 35 9 Vdd Vcc1 7 23 VStabA VStabB 38 34 22 Vcc2 8 ECO6 Systems 140499 LF filter RDS MPX RDS MPX stereo clock data enable Version 1120 1 8 FM Frontend AM Frontend AM FRAME AERIAL B 1103 1101 1102 A FM MPX buffer ampl 5 Discriminator 10 7 MHz Vdd Vcc1 Vcc Vcc2 AM RF AM Osc FM Osc FM RF FM IF 1 FM IF 2 AM IF...

Page 26: ...1n 3134 22K 6105 2 HN1V02H 100n 2163 T141 7KL 1K 3144 5102 3157 100K T109 470R 3153 2130 22n 220R 3105 3142 100K 3167 120R 33p 2149 2K2 3145 1132 C PAD T103 T111 2164 470n T102 2140 15p 2139 2138 2u2 82p 2133 1u 3103 8K2 T120 4p7 2154 3156 1101USA YKD21 100K 2161 100n 5119 2119 10p T142 5123 11p 2106 3172 6106 BAS216 100n 2165 5K6 3154 3155 220R 330R 2124 33K 3176 22n WRITE EN 5114 7P MUTE P0 P1 P...

Page 27: ...riginal frame antenna has to be used 2 RC network serves for damping the IF filter while adjusting the other one 4 MW has to be aligned before LW Waverange Input frequency Input Tuned to Adjust Output Scope Voltmeter FM 87 5 108MHz 65 81 74 87 5 108MHz FM MW version 9kHz grid 531 1602kHz as low as possible ECO6 System non Cenelec stage 3 120900 TUNER BOARD ECO6 Systems non Cenelec componentside vi...

Page 28: ...10 63V RDS only RESISTORS 3101 4822 051 20333 33kΩ 5 0 1W 3102 4822 117 10837 100kΩ 1 0 1W 3103 4822 051 20822 8 2kΩ 5 0 1W 3104 4822 117 13577 330Ω 1 0 1W 3105 4822 117 11503 220Ω 5 0 1W 3132 4822 051 20479 47Ω 5 0 1W 3134 4822 051 20223 22kΩ 5 0 1W 3141 4822 117 11148 56kΩ 1 0 1W 3142 4822 100 12159 TRIMPOT 100kΩ RESISTORS 3143 4822 051 20223 22kΩ 5 0 1W RDS only 3144 4822 051 10102 1kΩ 2 0 25W ...

Page 29: ... Block diagram 8 3 Internal Block diagram IC7212 8 3 ES3880 pins assignment 8 4 ES3883 pins assignment 8 5 MPEG 01B Board layout 8 6 ES3880 Circuit diagram 8 7 ES3883 Circuit diagram 8 8 Audio Circuit diagram 8 9 Electrical parts list 8 10 8 1 8 1 EXPLODED VIEW OF MODULE D3 x 10 D3 x 16 3CDC LC VCD Module Plate Insulation CDC LC Shield MPEG 01B MPEG 01B Board Flex Cable 22pin 3139 110 35290 ...

Page 30: ...llows resulting in the OSD display on the TV set connected to the Video out socket 4 When play button is activated the I2 S signal IIS_SCLK IIS_WCLK and IIS_DATA from the CD Board will enter IC7201 ES3880 which will work closely with the Eprom IC7202 and Dram IC7203 Inverter IC7205 74HC04D serves to reconstruct the Digital signal level required by IC7201 ES3880 5 Digital Audio information AUDIOCLK...

Page 31: ...1603 Conn 1601 Conn 1601 From SAA7324H on Servo Board DRST Conn 1601 5V CPU 8 Bit Microcontroller IC 7212 DSA_A DSA_D DSA_S To From SAA7324H on Servo Board MIC_IN MIC_DET Video out 8 BIT MICROCONTROLLER IC 7212 INTERNAL BLOCK 8 3 P0 0 P0 1 P0 2 P0 3 P0 4 P0 5 P0 6 P0 7 5 7 8 9 10 11 12 13 18 19 20 21 22 23 24 25 P0 P1 P3 P2 37 36 35 34 33 32 31 30 P1 0 P1 1 P1 2 P1 3 P1 4 P1 5 P1 6 P1 7 P2 0 P2 1 ...

Page 32: ...ins SEL_PLL 1 0 select phase lock loop PLL clock frequency CPUCLK for the Visba See the SEL_PLL0 pin above for the settings DA9 DOE 92 O Dual purpose pin DRAM output enable active low DRAM multiplexed row and column address bus AIN 93 I Audio interface serial data input ARCLK 94 I Audio receive bit clock ARFS 95 I Audio interface receive frame sync TDMCLK 96 I TDM interface serial clock TDMDR 97 I...

Page 33: ...Ground VCM 42 I ADC Common Mode Reference CMR buffer output CMR is approximately 2 25 V Bypass to analog ground with 47 m F electrolytic in parallel with 0 1 m F VREFP 43 I DAC and ADC maximum reference Bypass to VCMR with 10 m F in parallel with 0 1 m F VCCAA 44 I Analog VCC 5 V AOR AOR 45 46 O Right channel output AOL AOL 47 48 O Left channel output MIC1 49 I Microphone input 1 MIC2 50 I Microph...

Page 34: ...3139 113 3448 pt2 dd wk0141 3139 113 3448 pt2 dd wk0141 8 6 8 6 MPEG 01B BOARD LAYOUT ...

Page 35: ...WE_ 13 10 I O9 31 LCAS_ 29 NC1 11 NC2 12 NC3 15 30 NC4 27 OE_ RAS_ 14 UCAS_ 28 VCC1 1 VCC2 6 VCC3 20 VSS1 21 35 VSS2 25 A8 26 I O1 2 I O10 32 I O11 33 I O12 34 36 I O13 37 I O14 I O15 38 I O16 39 I O2 3 I O3 4 I O4 5 I O5 7 8 I O6 9 I O7 I O8 7203 MSM514265E A0 16 A1 17 A2 18 19 A3 A4 22 23 A5 A6 24 A7 VCC7 3273 220R 7205 B 74HC04D 3 7 14 4 100R 3270 2210 100n 13 7 14 12 5205 100n 2206 74HC04D 720...

Page 36: ...D 75R 3248 4K7 3287 4K7 3238 4K7 3232 2 VCC3 VCC3 100p 2261 1603 EH B 1 3224 220R 2219 47u 2253 100u VCC3 3237 4K7 BAT85 BAT85 6204 4001 6205 VAV AGND 1 2 3 VCC3 3288 47R 1602 EH B 100R 3212 2265 100p 2254 10u 22K 3241 VAV 5V VAA 7206 BC847B 4K7 3229 2u7 VAA 5215 5203 4K7 3243 77 78 79 8 80 81 82 83 84 85 86 87 88 89 9 90 91 92 93 94 95 96 97 98 99 48 49 5 50 51 52 53 54 55 56 57 58 59 6 60 61 62 ...

Page 37: ...X79 B4V7 6208 47R 3220 3215 47R 4u7 2260 VA AGND 4u7 2245 22n 2237 7207 B NJM4560M 5 6 7 8 4 100u 2204 100n 2275 470p 2212 100u AGND AGND 3256 3K9 1n 2257 LF35 7211 GND IN OUT AGND 1n 2250 2209 100u 5211 100u 2221 5217 2240 100n 10K 100R 3286 10K 3279 3277 22K 3278 10K 3216 3260 1M 12M CST 5202 AGND 3259 10K AGND 5209 AGND 100u AGND 3266 4K7 4K7 3262 2243 3269 22R 10K 3264 3222 10K 470p 2274 100n ...

Page 38: ...227 4822 051 30101 100R 5 0 062W 3228 4822 051 30472 4k7 5 0 062W 3229 4822 051 30472 4k7 5 0 062W 3230 4822 051 30101 100R 5 0 062W 3231 4822 051 30472 4k7 5 0 062W 3232 4822 051 30472 4k7 5 0 062W 3233 4822 051 30101 100R 5 0 062W 3234 4822 051 30102 1k 5 0 062W 3235 4822 051 30103 10k 5 0 062W 3236 4822 051 30101 100R 5 0 062W 3237 4822 051 30472 4k7 5 0 062W 3238 4822 051 30472 4k7 5 0 062W 32...

Page 39: ...ouble deck H L CRO2 Mechanism B Mechanism A Not for Ferro version Chrome Ferro Chrome Ferro Ferro 2624 100nF 2701 2702 150pF 270pF 270pF 2703 2704 100pF 220pF 220pF 2717 2718 10nF 15nF 15nF 2721 2722 6 8nF 6 8nF 2727 2728 470pF 1nF 1nF 3616 10k 1k 1k 3618 6k8 3620 10k trimmer 3622 10k trimmer 10k trimmer 3672 4k7 3676 47k 3687 220R 220R 3688 680R 3723 3724 15k 18k 18k 3725 3726 10R 10R 3727 3728 5...

Page 40: ...952BT 1A0 1A1 1A2 Rec current ATTEN ALC PLAYBACK EQUALISATION PB EON SW HEF4952BT 2A0 2A1 2A2 MPX 1A0 1A1 PB A ADJ PB B ADJ Rec In PB In 2A2 DOLBY B NR CXA1101M REC Out PB Out REC ADJ SHIFT REGISTER HEF4094BT 3A0 3A1 3A2 HS REC CRB DOLBY NOM HI SPEED REC EON 3A0 NS 2A2 MUTE For Dolby version only PB Out ATTEN 4794 9792 CLK DATA STROBE For Non dolby version only Only 1 channel is presented NOTE Mic...

Page 41: ...iable resistor 3773 for adjusting the optimal level of the bias current for Ferro or Chrome 11 Bias Symm For Dolby B NR version only Bias Symm making use of the Variable resistor 3785 to adjust the bias current for the left and the right channel to be equal 12 PB Switch Playback Switch which consists of the FETs 7785 For Dolby B NR version only 7786 J111 is for the purpose of providing a virtual g...

Page 42: ... for motor 13 CrO2 A Chrome tape detection switch deck A open Cr close Fe 14 H H pin for motor CONNECTORS ASSIGNMENTS CONNECTOR 1701 INTERCONNECTION TO AF BOARD 1 REC L Record input left 2 REC R Record input right 3 GND A AF Ground 4 TAPE L Playback output left 5 12V D C supply 12V for AF electronics 6 TAPE R Playback output right 7 CMOS Negative d c supply 9V for CMOS ICs CONNECTOR 1703 INTERCONN...

Page 43: ...ure 1 f Hz level dB 8dB 6dB 12 5k 4k 250 80 8dB f Hz level dB 8dB 10dB HSD 6dB 10k 4k 250 100 8dB 10dB HSD figure 2 check SBC419A 4822 397 30069 SBC420 4822 397 30071 SBC420 3150Hz SBC420 10kHz SBC420 DECK A B SBC419A SBC420 SBC419A or SBC420 SBC419A or SBC420 1 B Rec Switch REV Rec R CrO2 CrO2 Rec F Solenoid B Mode A Mode Solenoid Motor R1 680R R2 680R A Photo Sensor B Photo Sensor 2 B CrO2 Switc...

Page 44: ...LAYOUT CHIP LAYOUT 3139 113 3409 pt2 dd wk0042 3 4 2 1 6 5 3139 113 3409 pt2 dd wk0042 Some location on this board is prepared for both 0603 0805 SMDs footprint in such locations 0603 SMDs may be substituted 3 4 2 1 6 5 ...

Page 45: ...QUALISATION 1 1 REC R S4 PLAYBACK 0 1 S1 ANALOG CCTRY 1 1 0 S2 S1 S3 AN7323S 0 1 1 BIAS 4n7 2726 7784 BC857B 1M 3787 100n 2746 A0 7 A1 9 A2 10 VDD HEF4952B 7730 7782 220R 3701 C B4 A 3789 47K A A 2784 15n 1N4148 6778 7792 BC847B P 2706 220p 2A0 33n 2719 3736 22K 3760 120R A A 1N4148 6776 P 3K3 7786 J111 470p 2727 3K9 3722 2742 1K2 1M 3780 47u 2763 100p 2711 100n 2741 15K 3723 3703 220R 6K8 3769 37...

Page 46: ...10K mode_B Vcc CrO2_B 10K 47K 3676 7618 BC847B 100n 2626 M 5 1A0 1703 1 1N4003 6611 100n 2624 100K 3628 3679 47K 120K 3610 PMBT2907 7613 CRB 100K 3685 P 7610 HEF4094BT M 100K 3686 2A1 3601 2K2 680R 3688 3608 MOTOR M L CLK L 1 VDD 16 8 VSS CP 3 D 2 E0 15 4 O0 5 O1 O2 6 7 O3 14 O4 13 O5 12 O6 11 O7 Os 9 Os 10 STR MOTOR 56K 3612 7619 BC847B 5 6K8 3618 1702 3604 56K 5 3623 100K CRA 3613 27K 3622 BC857...

Page 47: ...normal service spare parts TAPE MODULE EXPLODED VIEW 1 3139 118 77130 Autoreverse Mech CWE44FR01 1 3139 118 77140 Non Autoreverse Mech CWE44FF02 Chrome Ferro 1 3139 118 77950 Non Autoreverse Mech CWE44FF05 Ferro 3 Screw D3 x 10 6 Screw M2 x 16 7 3139 110 34080 Flex Cable 14 pin 7 5 cm Note Only the parts mentioned in this list are normal service spare parts ...

Page 48: ... Arm Assembly R 23 9965 000 02314 Coil Assembly 25 9965 000 06443 Cam Gear 32 4822 528 11209 Flywheel Assembly RV 42 9965 000 02315 Belt AF Autoreverse deck 42 9965 000 02718 Belt AF Non autoreverse deck 69 4822 492 11761 Spring 102 4822 532 12931 Washer 103 4822 532 12932 Washer 104 4822 532 12933 Washer Note Only the parts mentioned in the list are normal service spare parts ...

Page 49: ...00 06443 Cam Gear 32 4822 528 11209 Flywheel Assembly RV 44 2 9965 000 02317 Flex Socket 14 Pin 44 3 9965 000 02320 Photo Interrupter 44 4 4822 050 16801 680R 1 0 4W 44 6 9965 000 02318 Leaf Switch 44 7 9965 000 02319 Mode Switch 59 9965 000 02719 Belt BF Large 69 4822 492 11761 Spring 102 4822 532 12931 Washer 103 4822 532 12932 Washer 104 4822 532 12933 Washer Note Only the parts mentioned in th...

Page 50: ...02320 Photo Interrupter 44 4 4822 050 16801 680R 1 0 4W 44 6 9965 000 02318 Leaf Switch 44 7 9965 000 02319 Mode Switch 45 9965 000 02323 Rec Pb Head Assembly 50 4822 402 10973 Pinch Arm Assembly L 54 9965 000 02324 Flywheel Assembly L 69 4822 492 11761 Spring 73 4822 492 11762 Spring 101 9965 000 02325 Washer 102 4822 532 12931 Washer 103 4822 532 12932 Washer 104 4822 532 12933 Washer 107 9965 0...

Page 51: ...se 3678 482211710834 47k 1 0 1W 3679 482211710834 47k 1 0 1W 3680 482211710834 47k 1 0 1W 3685 482211652234 100k 5 0 5W 3686 482211710837 100k 1 0 1W 3687 482211711503 220R 1 0 1W not for Ferro 3688 482211710361 680R 1 0 1W Autoreverse 3701 482211711503 220R 1 0 1W 3702 482211711503 220R 1 0 1W 3703 482211711503 220R 1 0 1W 3704 482211711503 220R 1 0 1W 3705 482211711503 220R 1 0 1W 3706 482211711...

Page 52: ... Jumper 0805 4745 482205120008 0R Jumper 0805 4746 482205120008 0R Jumper 0805 4748 482205120008 0R Jumper 0805 4785 482205120008 0R Jumper 0805 only for Ferro 4790 482205120008 0R Jumper 0805 4794 482205120008 0R Jumper 0805 4795 482205120008 0R Jumper 0805 COILS FILTERS 5701 482215711477 Coil 2 2µH 5 5703 482215620946 Osc Coil 100kHz DIODES 6611 482213031878 1N4003G 6612 482213031878 1N4003G 661...

Page 53: ...2 TABLE OF CONTENTS Service Hints 10 2 Wiring 10 4 Blockdiagram 10 5 Component Layout Main Board 10 6 Circuit Diagram part 1 10 7 Component Layout Main Board 10 8 Circuit Diagram part 2 10 9 Circuit Diagram part 3 10 10 Exploded View 10 10 Partslist 10 12 ...

Page 54: ...VE 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 fig 1 Attention The laser diode of this CD drive is protected against ESD by a solder joint which short circuits the laserdiode to ground For proper functionality of the CD drive this solder joint must be remo...

Page 55: ...f Tray Service hints 1 Open the tray 2 Release 2x catch as shown in fig 2 and Detail A 3 Pull tray out fig 2 Assembling of Tray 1 Turn Cam pos 48 clockwise to end position 2 If necessary move Guiding pos 49 to the right end position 3 Insert the Tray 8002 ...

Page 56: ...10 4 Wiring Disc Motor Inner switch Slide Motor Service Position 8005 ...

Page 57: ...Open if carousel is in a valid Play Position Closed if the tray is in one endposition Open during movement Open if the drive is in one endposition Closed during movement VDD pin 16 EN1 pin 15 Power on FOCUS MOTOR RADIAL MOTOR SLEDGE MOTOR MOTOR TURNTABLE 55 54 56 59 19 15 34 3 7803 M63000 TTM TTM SLEDGEB SLEDGEB RADB RADB FOCB FOCB CD Text LC89170M EXCK SBSO SCOR WFCK MCK SRDT DQSY SCLK 7816 DQSY ...

Page 58: ...3829 F4 3830 F4 3831 F2 3832 C3 3833 E4 3834 F4 3836 E3 3837 D2 3838 D2 3839 E2 3840 C3 3841 E1 3842 D2 3843 E2 3844 F1 3845 D2 3846 E2 3847 E1 3848 D3 3849 C3 3850 E1 3851 E4 3852 F1 3853 E4 3854 E2 3855 E3 3856 E4 3857 E4 3858 C2 3859 C2 3860 C2 3861 C2 3862 C4 3863 D2 3864 E4 3865 C4 3866 F3 3867 E4 3868 E4 3869 E4 3870 F1 3871 E2 3872 E3 3878 C3 3881 C3 4700 B2 4701 B2 4702 B2 4703 B2 4704 B1 ...

Page 59: ... 10V 10V 33R 3863 from part 2 5V 5V 10V 10V VrefCD10 VrefCD10 1 6V 1 6V 3 3V 3 3V 3 2V 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 7 8 9 10 A B C D E E F G H 1 2 3 4 5 6 F G H A B C D I I 7806 BC847B 3794 82K 3872 4k7 EQSEL from part2 7800 pin62 3835 1R 6810 1N4003 3874 1R 3873 1R 5V 1 9V 1 6V 1V 0 8V 4 7V 0 2V 0 9V 1 6V 1 7V 2 9V 2 1V 3 0V U 400mV Laser damaged Focus search Service step 2 2V 1s ...

Page 60: ...3829 F4 3830 F4 3831 F2 3832 C3 3833 E4 3834 F4 3836 E3 3837 D2 3838 D2 3839 E2 3840 C3 3841 E1 3842 D2 3843 E2 3844 F1 3845 D2 3846 E2 3847 E1 3848 D3 3849 C3 3850 E1 3851 E4 3852 F1 3853 E4 3854 E2 3855 E3 3856 E4 3857 E4 3858 C2 3859 C2 3860 C2 3861 C2 3862 C4 3863 D2 3864 E4 3865 C4 3866 F3 3867 E4 3868 E4 3869 E4 3870 F1 3871 E2 3872 E3 3878 C3 3881 C3 4700 B2 4701 B2 4702 B2 4703 B2 4704 B1 ...

Page 61: ... 6V 1 6V 1 6V 1 6V 3 2V 0 8V 3 2V TB 0 5µs div 800mVpp EYE PATTERN RW DA to part1 7801 pin11 10K 3849 3813 3814 3858 3861 3717 1R 3759 470R 3716 100R 3712 10R EBU marked components only forseen 6812 BAS316 3 3V A B C D E 12 13 14 1 2 3 4 5 6 7 8 C D E F G H I 9 10 11 12 13 14 F G B A 1 2 3 4 5 6 7 8 9 10 11 H I 3 3V 4 1V V DC voltages measured in PLAY MODE with following conditions 10V 10V 5V 5V E...

Page 62: ...tor Driver TDA7073A 7814 3738 270R 3745 10K 3748 10K 47K 3747 22n 2888 12 1 2 5 3 4 8 14 15 10 11 6 7 16 13 9 3719 3K9 3752 100K 3753 100K 47K 3736 10u 2860 3R3 3775 2873 47u 10V 1875 F3 1875 E5 1875 B3 1875 A2 1876 A1 1876 B3 1876 F3 1876 E5 1877 F1 1878 F1 1880 B2 1881 B2 1882 B2 1882 E4 1883 B2 1883 E4 2860 D2 2872 A3 2873 E1 2877 C6 2878 C6 2881 A5 2883 C6 2888 D2 3713 A5 3714 A5 3715 B5 3719 ...

Page 63: ...6980 NAIL FIXATION 46 3103 304 06880 GEAR 2 47 3103 304 66530 BRACKET LOAD 48 3103 304 06910 CAM 49 3103 304 66510 GUIDING 51 3103 304 06900 GEAR 4 52 3103 304 06870 GEAR 1 53 3103 304 06960 PULLEY FRAME 54 3103 304 66910 DRIVING BELT DRAWER 55 4822 361 10753 TRAY MOTOR 56 4822 502 12548 SCREW M2 6X3 5 57 3103 304 68890 COVER VAM 59 4822 466 12146 RUBBER 60 3103 301 72260 RUBBER MECHANICAL PARTS D...

Page 64: ... 0 06W 3811 4822 051 20273 27kΩ 5 0 1W 3812 4822 051 20471 470Ω 5 0 1W 3813 4822 051 20471 470Ω 5 0 1W 3814 4822 051 20471 470Ω 5 0 1W 3815 4822 052 10478 4 7Ω 5 NFR25 3816 4822 051 20471 470Ω 5 0 1W 3817 4822 051 30471 470Ω 5 0 06W 3818 4822 051 30101 100Ω 5 0 06W 3818 4822 051 30471 470Ω 5 0 06W 3819 4822 051 20471 470Ω 5 0 1W 3820 4822 051 30472 4 7kΩ 5 0 06W 3821 4822 051 20472 4 7kΩ 5 0 1W 38...

Page 65: ...822 051 20008 CHIP JUMPER 0805 4896 4822 051 20008 CHIP JUMPER 0805 4897 4822 051 20008 CHIP JUMPER 0805 4898 4822 051 20008 CHIP JUMPER 0805 COILS 1810 4822 242 10849 CRYSTAL 8 46MHz 5802 2422 536 00019 TRANSFORMER DIGITAL OUT DIODES 6801 4822 130 11397 BAS316 6802 4822 130 11397 BAS316 6803 4822 130 11397 BAS316 6804 4822 130 11397 BAS316 6805 4822 130 11383 BZX284 C5V1 6807 4822 130 11366 BZX28...

Page 66: ... 1250 1251 A2 A2 FAN 1 MAINS A1 B1 GND_D GND_D B2 5V_CDR 1250 1913 EH B 2P GND or CDR_ON GND_D 1 1 GND_D 1300 1259 FFC BD 11P 12P NTC LPC 8901_A F1 1 8240 heatsink FFC BD 7P EH B 3P GND_D GND_D B2 D2 5V_CDR F1 11V_A GND_A 8902_A GND 1 To CDR 1 1 1263 PD CLIP AMP ON 8902_B LSTBY LPS FFC BD 7P To CS_DPL board D GND D2 N D EH B 6P EH B 9P 1 A1 B1 1 1262 8906 8909 1251 1912 1330 F2 1264 GND_M For MTRX...

Page 67: ...ed in a specific version see schematic diagram and respective parts list 3139 113 3433 pt7 dd wk0139 L N 9902 B2 9901 A2 For 22 For 21 8902_A A2 1 2 1 2 A B A B 1901 B1 5900 A2 5901 A2 8901_A B2 9901 1901 1 2 1 2 4 3 8902_A 5901 8901_A 3 9902 5900 1 2 4 3139 118 53730 for 88330 3433 pt7 dd wk0139 Note Some values may varies see respective parts list for correct value MAINS BOARD COMPONENT VIEW 11 ...

Page 68: ...922 A6 9923 B6 ON 12V ON 50V 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 A B C D E F A B 4 5 6 7 2998 9903 5906 2912 2948 2m2 2 5 1 4 3 6 4m7 25V 4m7 2946 2925 47n 1N4148 6915 220R 3954 3942 0R33 2927 6902 10K gnd_s gnd_s 2922 2923 47n 2926 1924 2949 1N4003 6908 GND 6930 BZX79 C5V1 1921 T5A GBU6D 6921 2997 6906 1N4148 6m8 gnd_s 1902 SDKGA T5A 9907 6925 3922 gnd_s 2911 gnd_s 100u 2928 GND 2930 2931 2...

Page 69: ...ng shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139 113 3434 pt4 dd wk0139 11 4 11 4 LEFT RIGHT AMPLIFIER SUPPLY BOARD COMPONENT VIEW ...

Page 70: ... 7256 BC547B 7263 BC547B GND T1A 1280 GND_D 3270 1K 6261 1N4148 BC547B 10K 3279 7250 3262 100R GND_M 6251 BZX79 B10 3K9 3278 10K GND 2262 100n 3292 2K7 1K 3295 1323_A GND GND 9960 gnd_f 680R 3283 GND 7259 BC337 25 10u 2256 2260 10n 3286 1K 1K 6258 BZX79 B5V6 1262 EH B 1322_A GND BC547B 7262 6265 BZX79 C5V1 3304 GND 3256 120R GND 9251 470R 9252 3306 3254 3259 180R 3255 470K 3287 47u 2265 GND gnd_ar...

Page 71: ... gnd_pa 3353 0R33 100p 2325 47p EH B 1330 1 2 3 220p 2336 1321 A 2 1 3363 820R gnd_pa 100K 3321 7325 BC547B 100R 3395 5300 56K 3336 47K 3366 gnd_pa 820R 3354 22p 2375 2322 100n 9333 100n 2366 220n 2365 100n 2361 0R33 3361 gnd_pa 3374 4R7 3344 22R 220p 2335 3n3 2333 3328 1K 3342 56K 3368 2344 22u 3379 GND_AL 100n 2369 1322_B 100n 2368 1K 2367 100n 1N4148 9356 7320 6320 4R7 3372 100p 2339 22u 2334 4...

Page 72: ...03 33k 1 0 6W 3941 4822 117 11342 0R33 5 2W 3942 4822 117 11342 0R33 5 2W 3951 4822 052 10479 47R 5 0 33W 3952 4822 116 83961 6k8 5 3953 4822 116 83961 6k8 5 3954 4822 116 83881 390R 5 0 5W 3955 4822 050 11002 1k 1 0 4W COILS FILTERS 5901 4822 157 11628 Mains Choke 5903 3103 308 30600 Standby Transformer 5905 4822 280 10382 Relay 6901 5322 130 81917 SB140 6902 5322 130 81917 SB140 6903 5322 130 81...

Page 73: ... 6W 3381 4822 116 83884 47k 5 0 5W 3382 4822 116 83884 47k 5 0 5W 3404 4822 116 52291 56k 5 0 5W COILS FILTERS 5300 4822 157 70599 IND FXD BEAD EMI 5301 4822 157 70599 IND FXD BEAD EMI DIODES 6250 4822 130 34281 BZX79 C15 6251 4822 130 61219 BZX79 B10 6252 4822 130 34174 BZX79 B4V7 6256 4822 130 30621 1N4148 6257 4822 130 30621 1N4148 6258 4822 130 34173 BZX79 B5V6 6259 4822 130 34278 BZX79 C6V8 6...

Page 74: ...RO LOGIC DPL INTERFACE The AF10 Board has provisions which can be configured to cater for DPL d LINE OUT Line out cinch socket for connection to external amplifier e SUB WOOFER OUT Sub woofer out cinch socket for connection to active sub woofer speaker f INCREDIBLE SURROUND Incredible surround effect using transistor circuit to create phase shifting and spatial effect g HEADPHONE AMPLIFIER Headpho...

Page 75: ... schematic diagram and respective parts list 3139 113 3475 pt1 dd wk0210 4205 3730 4202 4206 2669 3503 3507 4209 2501 3504 3502 3501 3506 3723 2671 4922 3724 4212 3728 3727 2956 3725 3726 2672 3505 4210 4146 4208 4204 4211 3721 3722 2653 4207 4201 4203 4102 5915 4915 5907 4907 AF10 BOARD CHIP LAYOUT 12 2 12 2 ...

Page 76: ...embly drawing shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139 113 3475 pt1 dd wk0210 12 3 12 3 AF10 BOARD COMPONENT LAYOUT ...

Page 77: ...K N 1 2 3 4 2592 GND_A 1691 YKC21 3416 1 3 2 GND_A 3541 1K 2698 1n 2641 3593 5K6 A_Aux A_Mic 100n 4u7 2536 8K2 3572 A_Tp 100p 2502 5K6 3554 GND_A 3521 1K GND_A 2503 1u 5K6 3594 3501 4K7 2696 22u MUTE_SW_FR 8K2 3555 GND_A GND_A 2534 470n 2593 A_Aux 4K7 3437 100p A_DPL 2522 100n 470R 3665 2553 3n3 GND_A GND_A GND_EMC GND_A BC847B 7586 15K 3506 100p 2524 GND_A 470n 2594 2555 470p 3550 5K6 GND_A 100p ...

Page 78: ...408 10K 5V 3675 3K3 GND_A 7604 BC817 25 GND_D 4M7 3639 8 4 6401 1N4148 MUTE_SW_FR 1 2 3 4 7601 B NJM4556AM 5 6 7 GND_D 1603 FE BT VK N D2 7 D3 9 D4 10 D5 11 D6 12 D7 8 GND 2 SCL 3 SDA 1 SO 13 VDD 100p 2922 M62320FP 7403 CS0 16 15 CS1 14 CS2 4 D0 D1 5 6 3674 27K 3608 6K8 47K 3672 27K 3610 6771 1N4148 22u 2611 aa 4922 1K 9401 A_HP 3620 3 4 5 6 VC_OUT_LEFT FE BT VK N 1602 1 2 7653 BC817 25 BC817 25 7...

Page 79: ...D_D TU_Right 47p 2810 GND_D GND_D DPL_Vol_Clk 220R DSA_STB BZX79 C10 6205 4909 GND_D F1 aa 2520 10n AmOn GND_M A_CD 12V_M DVD_ON 9484 9 Vkk NTC A_DPL 3809 47R 8 9 NTC Vkk 5801 AMP_CS_DC 4915 GND_D 2901 Pw_Dn Clipping 4911 5V 9486 GND_A SS_R Low_Pw_Ctrl 220n 2208 12V_M SILD DSA_STB GND_EMC 470R 3801 4914 GND_D 5V6 14 1205 1 10 11 12 13 AMP_LEFT 1n 5662 GND_D 7202 MC78L05 GND 4904 I2C_Clk CD_Right D...

Page 80: ...0 552 94427 100pF 5 50V 2531 4822 124 40769 4 7uF 20 100V 2532 4822 124 40769 4 7uF 20 100V 2533 2020 552 94427 100pF 5 50V 2534 2020 552 94427 100pF 5 50V 2535 4822 124 40769 4 7uF 20 100V 2536 4822 124 40769 4 7uF 20 100V 2541 4822 124 41407 0 47uF 20 63V 2542 4822 124 41407 0 47uF 20 63V 2543 5322 126 11583 10nF 10 50V 2544 5322 126 11583 10nF 10 50V 2546 4822 121 43856 4 7nF 5 250V 2547 5322 1...

Page 81: ...00 4822 051 30008 0R Jumper 0603 4101 4822 051 30008 0R Jumper 0603 4104 4822 051 30008 0R Jumper 0603 4108 4822 051 30008 0R Jumper 0603 4110 4822 051 30008 0R Jumper 0603 4111 4822 051 30008 0R Jumper 0603 4112 4822 051 30008 0R Jumper 0603 4113 4822 051 30008 0R Jumper 0603 4114 4822 051 30008 0R Jumper 0603 4115 4822 051 30008 0R Jumper 0603 4116 4822 051 30008 0R Jumper 0603 4119 4822 051 300...

Page 82: ...ws a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139 113 3468 pt1 dd wk0119 This assembly drawing shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list VCDGNDISOLATORBOARD COMPONENTLAYOUT VCD GND ISOLATOR BOARD CHIP LAYOUT ...

Page 83: ... 0R Jumper 0603 4703 4822 051 30008 0R Jumper 0603 4704 4822 051 30008 0R Jumper 0603 TRANSISTORS INTEGRATED CIRCUITS 7704 4822 130 60511 BC847B 7705 4822 130 60511 BC847B 7710 4822 209 31378 NJM4556AM Note Only the parts mentioned in this list are normal service spare parts ELECTRICAL PARTS LIST VCD GND ISOLATOR BOARD 4 5 6 7 8 9 A B C D A B C D 48 B9 1705 A1 2709 B1 2710 B2 2711 B2 2712 B3 2713 ...

Page 84: ...Exploded_View_3139 119 34390 dd wk0209 14 1 14 1 SET MECHANICAL EXPLODED VIEW ...

Page 85: ...14 72470 Frame Button Set Woox 0144 3139 118 14790 Knob Rotary Woox Chrome 0145 3139 114 72500 Guide Rotary Woox 0148 3139 118 17250 Cover Orn Control 0149 3139 118 17260 Cover Control Woox 0150 3139 118 15580 Knob Karaoke 0151 3139 118 16800 Cover Cassette Left 0152 3139 118 16810 Cover Cassette Right 0153 3139 114 74910 Lens Cassette Left 0154 3139 114 74920 Lens Cassette Right 0197 3139 114 686...

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Summary of Contents for FW-V795/21M

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Philips FW-V795/21M, Service Manual, Page: 13 / 85

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Summary of Contents for FW-V795/21M

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