Sony HCD-VX550 Service Manual Download Page 8

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SECTION 3

DISASSEMBLY

Note :

Follow the disassembly procedure in the numerical order given.

3-1. COVER

3-2. LOADING PANEL ASS’Y

two screws
(case 3TP2) (3

screw
(case 3TP2) (3

12)

three screws
(BVTP3

cover

screw
(case 3TP2) (3

12)

two screws
(case 3TP2) (3

loading panel ass’y

Pull-out
the disc tray.

Turn the cam-in the
direction of the arrow

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Summary of Contents for HCD-VX550

Page 1: ...C 1 2 phone jack sensitivity 1 mV impedance 10 kΩ Outputs MD OUT phono jacks voltage 250 mV impedance 1 kΩ VIDEO OUT phono jack max output level 1Vp p unbalanced Sync negative load impedance 75 Ω S VIDEO OUT 4 pin mini DIN jack Y 1Vp p unbalanced Sync negative C 0 286Vp p load impedance 75 Ω PHONES stereo phone jack accepts headphones of 8 Ω or more SPEAKER accepts impedance of 8 to 16 Ω SUPER WOO...

Page 2: ...ion 18 AUDIO VIDEO CD Section 19 TAPE DECK Section 20 MAIN Section 21 DISPLAY KEY CONTROL POWER SUPPLY Section 22 7 2 Circuit Board Location 23 7 3 Printed Wiring Board BD Board 24 7 4 Schematic Diagram BD Board 25 7 5 Schematic Diagram VIDEO Board 1 2 26 7 6 Schematic Diagram VIDEO Board 2 2 27 7 7 Printed Wiring Board VIDEO Board 28 7 8 Printed Wiring Boards CD MOTOR Section 30 7 9 Schematic Dia...

Page 3: ...ent Notice that the minus side of a tantalum capacitor may be dam aged by heat Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur ing repairing Do not touch the soldering iron on the same conductor of the circuit board within 3 times Be careful not to apply force on the conductor when soldering or unsoldering NOTES ON HANDLING THE OPTICAL PICK UP BLOCK OR ...

Page 4: ...n A Note When attaching the Base unit Insert the section A into the groove of BU cam Note When attaching the BU cam engage the Rotary encoder switch as shown in the figure www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 5: ... 6 4 2 qd qf qh qj qk ql w wa ws wd wf wg wh wj wk wl e ea es ed ef qg qk REC PAUSE START button and indicator ql HI DUB button w CD SYNC button wa PHONE jack ws VOLUME knob wd button and indicator wf JOG dial and indicator wg 0 button and indicator wh CD FLASH button wj CD LOOP button wk MIC 2 jack wl MIC 1 jack e MIC LEVEL knob ea ECHO LEVEL knob es FUNCTION button ed SYNC EQ indicator ef EFFECT...

Page 6: ...td tf tg th rh SYNC BASS L indicator rj SYNC EQ button rk SYNC BASS button rl CINEMA SPACE SURROUND button t DBFB button ta ENTER NEXT button and indicator ts GROOVE button and indicator td SPECTRUM ANALYZER button tf TIMER SELECT button and indicator tg CLOCK TIMER SET button th DISPLAY button www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q ...

Page 7: ...ction manual www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 8: ...TP3 8 6 cover 2 screw case 3TP2 3 12 3 two screws case 3TP2 3 8 5 4 4 3 loading panel ass y 2 Pull out the disc tray 1 Turn the cam in the direction of the arrow A A www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 9: ... 10 7 two screws BVTP3 8 5 chassis 4 screw BVTP3 8 9 two connectors CN392 393 2 two screws BVTP3 8 6 screw BVTP3 10 8 Remove the CD mechanism deck CDM38LH 5BD36L in the direction of arrows A B B A 1 wire flat type 15 core 17 cm CN502 1 wire flat type 25 core 18 cm CN501 2 screw BVTP3 8 3 VIDEO board www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3...

Page 10: ...e screws BVTP3 8 4 two screws BVTP3 8 7 connector CN403 3 two screws BVTP3 8 2 connector CN953 2 connector CN952 6 Remove the MAIN board in the direction of the arrow 1 wire flat type 15 core 15 cm CN371 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoy...

Page 11: ...over CD Delivery Mode This mode moves the optical pick up to the position durable to vibration Use this mode when returning the set to the customer after repair Procedure 1 Press the 1 u button to turn the power ON 2 Press the CD LOOP and 1 u buttons simultaneously 3 A message LOCK is displayed on the fluorescent indicator tube and the CD delivery mode is set LED and Fluorescent Indicator Tube All...

Page 12: ... Cold Reset 1 Display at the Aging Mode Display operating state of tape deck section alternately If an error occurred stop display 2 Tape Deck Section The sequence during the aging mode is following as below If an error occurred stop display that step Aging mode sequence Tape deck section Rewind the tape A and B TAPE A AG 1 Shut off FWD play the tape A TAPE A AG 2 2 minutes Fast forward the tape A...

Page 13: ...O MD AUDIO OUT using an oscilloscope Procedure 1 Short the both ends of the land of SL503 of the VIDEO board 2 Turn the power on Press the FUNCTION button to select CD 3 The color bars appears when the CD is in stop status and it disappears when the CD goes in play status 4 After measuring remove the lead wire connected VIDEO board SIDE B IC505 CN501 CN502 SL501 SL503 100 81 1 30 31 50 51 80 SL502...

Page 14: ...layback FWD Tape Signal Used for P 4 A100 10 kHz 10 dB Azimuth Adjustment WS 48B 3 kHz 0 dB Tape Speed Adjustment P 4 L300 315 Hz 0 dB Level Adjustment Precaution 1 Clean the following parts with a denatured alcohol moistened swab record playback heads pinch rollers erase head rubber belts capstan idlers 2 Demagnetize the record playback head with a head demagnetizer 3 Do not use a magnetized scre...

Page 15: ...SW board do that frequency counter reads 6 000 180 Hz 5 Press the HI DUB button Then back to NORMAL speed mode 6 Adjust RV1002 on the LEAF SW board so that frequency counter reads 3 000 90 Hz Adjustment Location LEAF SW board Sample value of Wow and Flutter 0 3 or less W RMS JIS WS 48B Playback level Adjustment DECK A DECK B Procedure Mode Playback Deck A is RV311 L CH and RV411 R CH Deck B is RV3...

Page 16: ... 53 0 mV 24 3 to 23 3 dB Adjustment Location MAIN board MAIN BOARD Conductor Side AUDIO BOARD Component Side LEAF SW BOARD Component Side attenuator set MAIN board VIDEO AUDIO IN jack J101 L CH R CH 1 315 Hz 2 10 kHz 50 mV 23 8 dB 600 Ω blank tape CN 123 AF OSC set recorded portion MAIN board MD OUT jack J101 L CH R CH level meter set MAIN board VIDEO AUDIO IN jack J101 L CH R CH 315 Hz 50 mV 23 8...

Page 17: ...nal waveform means that the shape can be clearly distinguished at the center of the waveform CD SECTION BD board TP FE TP VC oscilloscope A B symmetry within 4 1 Vp p BD board TP RF TP VC oscilloscope VOLT DIV 200 mV TIME DIV 500 ns level 1 45 0 3 Vp p E F Balance 1 Track Jump Check Procedure 1 Connect oscilloscpe to TP TE and TP VC 2 Turn the power ON 3 Load a disc YEDS 18 and playback the number...

Page 18: ...PU INTERFACE FOK MIRR DFCT M101 SPINDLE MOTOR DRIVE XRST LDON DSP MUTE MOTOR DRIVE COIL DRIVE COIL DRIVE M M M102 SLED 16 FOCUS TRACKING COIL DRIVE SPINDLE SLED MOTOR DRIVE IC102 2 AXIS DEVICE TRACKING FOCUS DIGITAL SERVO PROCESSOR IC101 2 2 OPTICAL PICK UP KSS 213D Q NP LDON 21 HOLD SW PD Page 19 SIGNAL PATH CD PLAY DIGITAL OUT I V AMP 12 11 13 14 CTRL1 CTRL2 CTL1 LPH SUBQ DATA SUBQ CLK SCOR MCLK...

Page 19: ...L E Page 21 C Page 18 C Y DIGITAL FILTER NOISE SHAPER CIRCUIT 21 24 27 32 20 A0 A10 12 5 27 26 23 A11 A17 A11 A17 25 4 28 29 3 2 30 D0 D7 O0 O7 A0 A10 DQ0 DQ15 ADDRESS BUS DATA BUS D RAM IC507 A0 A10 BA 13 15 17 21 2 3 5 6 8 9 11 12 39 40 42 43 45 46 48 49 54 58 60 64 68 72 74 78 76 73 70 66 62 59 56 53 142 143 145 148 150 152 154 155 WE 22 CE RAS CAS 18 CS 90 RESET INT 8830 RESET CL680 HINT 93 NT...

Page 20: ... NR AMP ALC AMS IC301 AIN L BIN L MAOUT PB OUT L EQ OUT L MSIN MSOUT BIAS ON OFF 70 120 BIAS N BIAS C BIAS M S1004 A 120 70 B NORM CROM ALC ON OFF PB A B NORM HIGH NR ON OFF RM ON OFF REC PB PASS LM ON OFF DECK A 120 70 88 S1003 DECK A HALF S1001 DECK A PLAY S1002 DECK B PLAY S1008 DECK B 120 70 27 REC OUT L ROUT L RIN L ALC L EQ IN L ALC IN L 44 38 100 AMS IN 91 A SHUT ROTATION DETECT SENSOR DECK...

Page 21: ...2 REC L D191 REC B2 SIGNAL PATH CD PLAY TAPE PLAY RECORD TUNER FM AM MIC INPUT TH831 5V R CH R CH R CH M501 FAN R CH 1 2 MUTING Q191 MUTING Q411 471 FAN MOTOR DRIVE Q401 402 PROTECT SWITCH Q192 R CH R CH OVER LOAD DETECT SWITCH Q432 PROTECT SWITCH Q439 PROTECT SWITCH Q435 436 OVER LOAD DETECT SWITCH Q437 STANDBY SWITCH Q803 804 881 MUTING CONTROL SWITCH Q508 509 MUTING CONTROL SWITCH Q412 J701 PHO...

Page 22: ... XOUT XIN B SWITCH Q601 602 LED DRIVE Q606 KEY0 KEY3 BPF1 F01 F04 F05 F06 F02 G1 Page 21 Page 21 H Page 19 D D611 624 D627 631 D751 753 SPEANA L SEL 7 TIMER LED 26 LED DATA 5 LED SCK 3 LED LAT DATA CLK 4 13 14 15 45 I2C DATA DATA CLK I2C CLK IIC DATA IIC CLK RESET RESET 17 79 78 29 WAKE UP WAKE UP 22 18 30 CD POWER 5 POWER 2 73 16 14 13 12 L R 11 16 17 4 6 11 14 S1 S22 46 67 G13 G18 32 27 G2 G12 4...

Page 23: ...taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F TUNER FM AM E PLAYBACK DECK A d PLAYBACK DECK B G RECORD L CD PLAY VIDEO J CD PLAY AUDIO c DIGITAL OUT N MIC INPUT THIS NOTE IS COMMON...

Page 24: ...ards Location Page 28 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 25: ... CD STOP CD PLAY The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified Page 26 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiao...

Page 26: ...oltages and waveforms are dc with respect to ground under no signal conditions no mark VIDEO CD PLAY Page 25 Page 36 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 27: ...g Board Voltages and waveforms are dc with respect to ground under no signal conditions no mark VIDEO CD PLAY Impossible to measure IC504 3 3V REG w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoy...

Page 28: ... Location D502 I 11 IC503 H 3 IC504 E 8 IC505 H 11 IC506 E 4 IC507 C 6 IC508 C 8 IC509 H 6 IC510 H 5 IC511 C 2 IC514 E 11 IC515 I 16 Semiconductor Location w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http ...

Page 29: ... 0 Vp p 16 7 ms 5 0 Vp p H 36 nsec 2 0 Vp p H H 1 8 Vp p 4 6 Vp p 30 nsec 4 2 Vp p 4 8 Vp p BD SECTION VIDEO SECTION 1 IC101 wg MDP 6 IC101 yg LRCK 7 IC101 yj BCLK 8 IC101 ua XTAI 9 IC103 qh RFO CD Play mode 3 IC101 ra TE CD Play mode 4 IC101 rd RFDC CD Play mode 5 IC101 t RFAC CD Play mode 2 IC101 el FE CD Play mode 2 6 Vp p 7 5 µs 0 2 Vp p 0 5 Vp p 1 3 Vp p 1 3 Vp p 4 5 Vp p 22 7 µs 4 5 Vp p 4 3...

Page 30: ...ISC TRAY ADDRESS DETECT DISC TRAY TURN 1 658 577 C Page 35 Page 35 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 31: ... SLIDE CLOSE OPEN B DISC TRAY SLIDE DISC IN DETECT SENSOR DISC TRAY SENSOR DISC TRAY TURN DISC TRAY TURN MOTOR DRIVER LEVEL SHIFT C 16 Page 36 Page 36 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www x...

Page 32: ...rds Location 16 D Page 35 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 33: ...8 PLAYBACK D 16 Page 38 7 11 SCHEMATIC DIAGRAM AUDIO BOARD Refer to page 48 for IC Block Diagram The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL...

Page 34: ...9 H 3 D921 H 4 D922 G 4 D923 G 4 D924 F 2 IC101 C 10 IC301 B 3 IC381 A 12 IC501 D 5 IC502 D 7 IC801 H 10 IC901 G 6 IC902 G 4 IC903 H 4 IC904 H 3 Q111 D 10 Q112 D 10 Q113 E 9 Q161 C 9 Q162 C 9 Q163 E 9 Q191 D 12 Q192 E 10 Q201 D 9 Q251 C 9 Q331 C 1 Q332 C 2 Q333 C 2 Q334 C 2 Q335 D 1 Q336 F 1 Q337 F 1 Q338 F 1 Q339 F 1 Q340 E 1 Q341 E 1 Q342 F 1 Q343 E 1 Q401 F 12 Q402 E 12 Q411 G 1 Q412 G 1 Q431 G...

Page 35: ...42 Page 43 Page 40 Page 34 Page 32 Page 30 Page 30 Page 28 Page 44 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 36: ...tages are dc with respect to ground under no signal detuned conditions no mark TUNER FM AM CD PLAY w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 37: ... Page 36 D3001 11ES2 D3002 11ES2 The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http ...

Page 38: ...D PLAY PLAYBACK DECK A PLAYBACK DECK B RECORD CN371 15P 16 Page 34 Page 39 Page 41 Page 43 Page 39 Page 37 Page 36 Page 33 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 39: ...er to page 35 for Printed Wiring Board Refer to page 49 for IC Pin Function Description CD POWER D 5V GND VDD L Page 38 Page 42 Page 37 Page 36 Page 38 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www ...

Page 40: ...627 E 7 D628 E 4 D629 D 5 D630 F 7 D631 F 4 D632 F 8 D701 C 9 IC601 B 5 IC602 B 10 IC603 B 7 IC604 C 3 IC711 C 9 IC712 F 8 Q601 C 2 Q602 C 1 Q603 C 1 Q604 A 3 Q605 A 2 Q606 B 3 Q607 A 9 Q608 A 9 Q609 A 9 Q610 B 9 Q611 B 8 Q612 B 8 Q613 B 8 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376...

Page 41: ...re dc with respect to ground under no signal detuned conditions no mark TUNER FM AM 16 Page 38 Page 42 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 42: ...V POWER BOARD 16 27 Page 40 Page 35 16 Page 41 Page 39 7 3 4 7 7 3 5 0 9 3 8 1 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 43: ... Location D971 A 2 D972 A 1 D973 A 1 Q971 A 1 27 16 Page 35 Page 35 16 Page 38 Page 37 The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 139422965...

Page 44: ...ges and waveforms are dc with respect to ground under no signal detuned conditions no mark TUNER FM AM 16 Page 35 16 Page 36 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 45: ... RFAC ASYI ASYO BIAS AVDD1 PCO FILI FILO CLTV V16M VCTL VPCO 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 OPERATIONAL AMPLIFIER ANALOG SWITCH A D CONVERTER FOCUS PWM GENERATOR TRACKING PWM GENERATOR SLED PWM GENERATOR...

Page 46: ... 16 17 18 19 20 21 22 23 24 VCC MOTOR TURN BOARD IC701 M54641L REG CONTROL INPUT AMP INPUT AMP 1 2 3 4 5 6 7 8 POWER AMP POWER AMP VCC OUT1 IN2 REFERENCE GND IN1 OUT2 VCC MOTOR SLIDE BOARD IC801 BA6286N POWER SAVE CONTROL LOGIC TSD 1 2 3 4 5 6 7 8 9 10 GND RIN VREF OUT2 RNF GND OUT1 VM VCC FIN www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q T...

Page 47: ...SV SCKO3 ML MC MC RSTB VOUTR AGND VCA ZERO BCK DATA LRCK SCKO2 SCKO1 VDD DGND XT2 384fs 15 14 VOUTL CAP L R L DELAY L R LOW PASS FILTER VIRTUAL ADM ADM CONT S RAM OSC VSS SW1 SW2 LPF1 LPF2 LS CUT R PS IN VCC L PS IN RS OUT L IN R IN LC INE LC INB VDD A D NS D A DC CUT AGND VREF EF VOL L OUT R OUT 24 23 22 21 20 19 18 17 16 15 14 13 11 12 4 3 2 1 5 6 7 8 9 10 R DELAY www xiaoyu163 com QQ376315150 9...

Page 48: ...L CIRCUIT 20 21 19 23 24 22 18 17 16 15 14 13 4 3 2 1 6 P7 P8 P9 P10 P11 VSS P12 P13 P14 P15 P16 7 SO 8 9 10 11 12 5 VDD P6 P5 P4 P3 P2 VSS P1 CLR STB CLK DATA IC711 M65850FP OSCILLATOR 1 2 VCC AUTO RESET LPF1 MAIN CONTROL A D 20KBIT SRAM LPF2 D A 1 2 3 4 5 6 7 8 9 10 14 13 12 11 CLOCK RESET MO MI D1 DO0 DO1 VCC CLOCK REF OP2IN OP2OUT LPF2IN LPF2OUT LPF1IN LPF1OUT OP1OUT OP1IN CC1 CC2 GND www xiao...

Page 49: ...ed fixed at L 21 RDS DATA I Serial data input terminal Not used fixed at L 22 AC CUT I AC off detection signal input from the reset signal generator IC502 L AC cut checked 23 PL CLK O Serial data transfer clock signal output to the pro logic circuit Not used open 24 PL DATA O Serial data output to the pro logic circuit Not used open 25 PL LAT O Serial data latch pulse output to the pro logic circu...

Page 50: ... L reset 60 DISC SENS I Disc status detection signal input from the disc sensor IC703 61 TBL SENS I Disc tray status detection signal input from the disc tray sensor IC702 62 VCC Power supply terminal 5V 63 TBL L O Motor drive signal output to the disc tray turn motor driver IC701 L active 1 64 VSS Ground terminal 65 TBL R O Motor drive signal output to the disc tray turn motor driver IC701 L acti...

Page 51: ... limiter on 86 B PLAY SW I Detection input from the deck B play detect switch S1002 H deck B play 87 A PLAY SW I Detection input from the deck A play detect switch S1001 H deck A play 88 A HALF I Detection input from the deck A cassette detect switch S1003 L cassette in H no cassette 89 B HALF I Detection input from the deck B half detect switch S1006 90 B SHUT I Shut off detection signal input fr...

Page 52: ...utput 22 DF LATCH O Serial data latch pulse output to the D A converter IC509 L active 23 Not used 24 8830 RESET Reset signal output to the MPEG video audio decoder IC506 L reset 25 JOG1 I Rotary encoder jog dial pulse input terminal Not used fixed at H 26 JOG2 I Rotary encoder jog dial pulse input terminal Not used fixed at H 27 28 Chip select signal of D A converter IC511 29 30 I2C and serial da...

Page 53: ... terminal for the test mode 1 for VCD check Normally fixed at H L test mode 75 TEST2 I Setting terminal for the test mode 2 for SERVO check Normally fixed at H L test mode 76 TEST3 I Setting terminal for the test mode 3 Normally fixed at H L test mode Not used fixed at H 77 DEVICE RESET O System reset signal output to the CXD3008Q IC101 BA5974FP IC102 and D A converter IC509 L reset 78 STANDBY O S...

Page 54: ...high for 10 ns before tristate Host interrupt Open drain signal must be pulled up to 3 3 volts Driven high for 10 ns before tristate 3 3 V supply voltage for core logic and I O signals Ground for core logic and I O signals 3 3 V supply voltage for core logic and I O signals Ground for core logic and I O signals 3 3 V supply voltage for core logic and I O signals Ground for core logic and I O signa...

Page 55: ...Memory address Ground for core logic and I O signals Memory address 3 3 V supply voltage for core logic and I O signals Memory address Ground for core logic and I O signals Memory address 3 3 V supply voltage for core logic and I O signals Memory address Ground for core logic and I O signals Memory address 3 3 V supply voltage for core logic and I O signals Memory address Ground for core logic and...

Page 56: ...r the falling edge of VSYNC VSYNC can accept vertical synchronization or top bottom field notification from an external source VSYNC HIGH bottom field VSYNC LOW Top field 3 3 V supply voltage for core logic and I O signals Serial audio samples relative to DA BCK clock Ground for core logic and I O signals PCM left right colck Identifies the channel for each audio sample the polarity is programmabl...

Page 57: ...t Host asserts CS to select the decoder for a read or write operation The falling edge of this signal triggers the read of write operation Read write strobe in M mode Write strobe in I mode Host asserts R W LOW to select write and LOW to select Read Read strobe in I mode Must be held HIGH in M Mode Pin Name PIO 10 0 VDD VSS VDD VSS HADDR 2 0 CS R W RD www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 ...

Page 58: ...FREQ BPF0 I Spectrum analyzer drive super low frequency signal input from the spectrum analyzer band pass filter IC603 for 40 Hz 17 BPF1 I Spectrum analyzer drive low frequency signal input from the spectrum analyzer band pass filter IC603 for 100 Hz 18 BPF2 I Spectrum analyzer drive low and middle frequency signal input from the spectrum analyzer band pass filter IC603 for 400 Hz 19 BPF3 I Spectr...

Page 59: ...sed fixed at L 76 TEST I Connected to ground 77 GRAD R1 O Not used open 78 I2C DATA I O Communication data bus with the system controller IC501 and CD mechanism controller IC502 79 I2C CLK I O Communication data reading clock signal input or transfer clock signal output with the system controller IC501 and CD mechanism controller IC502 80 GRAD R2 O Not used open www xiaoyu163 com QQ376315150 9 9 2...

Page 60: ...NCE WHITE RED Parts of Color Cabinet s Color Ref No Part No Description Remarks Ref No Part No Description Remarks 1 COVER SECTION TCM 230AWR2 not supplied not supplied 5 3 3 3 4 4 front panel section not supplied 5 6 7 7 8 9 8 1 10 10 2 3 11 4 5 5 4 6 1 1 X 4950 832 2 HOLDER R ASSY CASSETTE 2 X 4951 067 1 HOLDER L ASSY CASSETTE 3 X 4952 096 1 PANEL ASSY LOADING 4 3 363 099 11 SCREW CASE 3 TP2 5 3...

Page 61: ...11 CATCHER B PUSH 56 4 214 760 11 CATCHER A PUSH 57 4 214 384 11 KNOB VOL 58 4 214 383 11 KNOB JOG 59 4 996 716 01 HOLDER CDM 60 4 951 620 01 SCREW 2 6 8 BVTP 61 4 214 385 11 KNOB MIC 62 A 4426 761 A PANEL BOARD COMPLETE 63 A 4426 760 A SW BOARD COMPLETE 64 1 773 188 11 WIRE FLAT TYPE 23 CORE 65 1 674 232 11 PWB PUSH CATCH STOP www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 ...

Page 62: ...MPLETE 114 A 4724 927 A VIDEO BOARD COMPLETE 115 1 775 229 11 WIRE FLAT TYPE 25 CORE 116 1 675 906 11 5V POWER BOARD M501 1 763 072 11 FAN DC T951 1 433 565 31 TRANSFORMER POWER The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified 111 101 110 102 104 105 107 not supplied T951 10 10 9 2 2 2 2 2 2 3 2 2 2 M501 2 2 2 2 2 CDM38L 5BD...

Page 63: ...205 4 977 956 01 WHEEL WORM 206 1 658 577 11 MOTOR TURN BOARD 207 4 988 162 01 ROLLER 208 4 977 941 01 BEARING WORM 209 1 658 576 11 SENSOR BOARD 210 4 934 376 01 SHAFT ROLLER 211 4 981 187 01 COLLAR WORM 212 4 977 944 01 TRAY SLIDE M701 A 4672 004 A MOTOR ASSY DISC TRAY SLIDE www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ...

Page 64: ...CONNECTOR BOARD 260 X 4947 846 1 CHASSIS CDM ASSY 261 4 985 672 01 SCREW PTPWHM2 6 FLOATING 262 1 658 578 11 MOTOR SLIDE BOARD 263 4 982 447 01 SPRING BU COMPRESSION 264 4 951 620 41 SCREW 2 6 BVTP 265 X 4949 570 1 HOLDER BU ASSY 266 4 989 494 01 SCREW SLIDER STEP 267 4 989 492 11 SLIDER 38 268 4 989 819 02 SPRING TENSION 269 4 989 491 01 COVER LENS 270 4 993 142 03 PULLEY L PRESS M801 A 4672 569 ...

Page 65: ...564 01 GEAR P FLATNESS 307 A 4724 925 A BDBOARD COMPLETE 308 4 951 620 01 SCREW 2 6 8 BVTP 309 3 713 786 51 SCREW P 2 3 M101 X 4917 523 4 MOTOR ASSY SPINDLE M102 X 4917 504 1 MOTOR ASSY SLED The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 ...

Page 66: ...6 3 016 564 01 BASE PINCH LEVER FWD 407 3 016 565 01 BASE PINCH LEVER REV 408 3 026 892 01 SPRING CASSETTE LEAF 409 A 2007 731 A AUDIO BOARD COMPLETE 410 3 032 809 02 SPRING L TORSION 411 3 016 572 01 LEVER EJECT PREVENTION L 412 3 032 810 02 SPRING R TORSION 413 3 016 573 03 LEVER EJECT PREVENTION R HP101 A 2056 681 B DECK A ASSY HEAD HRPE101A 2056 682 B DECK B ASSY HEAD www xiaoyu163 com QQ37631...

Page 67: ...5 1 FLYWHEEL REV ASSY 457 X 3374 238 1 PULLEY ASSY TENSION 458 3 024 405 01 BELT FR2 459 A 2004 629 A MECHANICAL BLOCK ASSY 460 3 016 566 01 SLIDER REVERSE 461 A 2007 732 A LEAF SW BOARD COMPLETE 462 3 016 575 11 SPRING TORSION 463 3 019 208 01 WASHER STOPPER 464 3 027 453 01 SPRING GROUND TENSION 465 3 030 823 01 SCREW BVTT 2 3 5 M1 A 2004 628 A MOTOR ASSY CAPSTAN www xiaoyu163 com QQ376315150 9 ...

Page 68: ...10uF 20 16V C612 1 104 396 11 ELECT 10uF 20 16V C621 1 137 150 11 FILM 0 01uF 5 100V C622 1 126 961 11 ELECT 2 2uF 20 50V C623 1 136 155 00 FILM 0 015uF 5 50V C624 1 130 481 00 MYLAR 0 0068uF 5 50V C625 1 130 481 00 MYLAR 0 0068uF 5 50V C627 1 124 903 11 ELECT 1uF 20 50V C628 1 136 153 00 FILM 0 01uF 5 50V C642 1 104 664 11 ELECT 47uF 20 16V CONNECTOR CN601 1 568 834 11 SOCKET CONNECTOR 15P IC IC6...

Page 69: ...CHIP 0 022uF 10 25V C186 1 128 065 11 ELECT CHIP 68uF 20 10V C187 1 163 038 91 CERAMIC CHIP 0 1uF 25V CONNECTOR CN101 1 770 708 11 CONNECTOR FFC FPC 25P CN102 1 777 937 11 CONNECTOR FFC FPC 16P IC IC101 8 752 397 42 IC CXD3008Q IC102 8 759 640 22 IC BA5982FM IC103 8 752 085 51 IC CXA2568M T6 IC104 8 759 398 25 IC TC7SH04F TE85L COIL L101 1 414 234 22 INDUCTOR CHIP 0uH L102 1 410 377 31 INDUCTOR CH...

Page 70: ...EYBOARD POWER S752 1 762 875 21 SWITCH KEYBOARD STANDBY DEMO S753 1 762 875 21 SWITCH KEYBOARD DISC1 S754 1 762 875 21 SWITCH KEYBOARD DISC2 S755 1 762 875 21 SWITCH KEYBOARD DISC3 S756 1 762 875 21 SWITCH KEYBOARD DISC SKIP EX CHANGE S757 1 762 875 21 SWITCH KEYBOARD EJECT 1 658 575 11 CONNECTOR BOARD CONNECTOR CN701 1 568 946 11 PIN CONNECTOR 8P CN702 1 785 550 11 CONNECTOR FFC FPC 8P TRANSISTOR...

Page 71: ... 50V C316 1 104 665 11 ELECT 100uF 20 10V C317 1 104 665 11 ELECT 100uF 20 10V C320 1 162 290 31 CERAMIC 470PF 10 50V C333 1 162 600 11 CERAMIC 0 0047uF 30 16V C334 1 162 600 11 CERAMIC 0 0047uF 30 16V C351 1 126 960 11 ELECT 1uF 20 50V C352 1 130 479 00 MYLAR 0 0047uF 5 50V C353 1 136 165 00 MYLAR 0 1uF 5 50V C354 1 136 165 00 MYLAR 0 1uF 5 50V C355 1 126 964 11 ELECT 10uF 20 50V C356 1 126 960 1...

Page 72: ...11 19 DIODE 1SS119 25 D331 8 719 911 19 DIODE 1SS119 25 D333 8 719 911 19 DIODE 1SS119 25 D334 8 719 911 19 DIODE 1SS119 25 D335 8 719 911 19 DIODE 1SS119 25 D401 8 719 911 19 DIODE 1SS119 25 D403 8 719 911 19 DIODE 1SS119 25 D405 8 719 024 99 DIODE 11ES2 NTA2B D406 8 719 024 99 DIODE 11ES2 NTA2B D407 8 719 024 99 DIODE 11ES2 NTA2B D411 8 719 911 19 DIODE 1SS119 25 D501 8 719 024 99 DIODE 11ES2 NT...

Page 73: ...8 729 900 36 TRANSISTOR DTC124ES Q905 8 729 040 20 TRANSISTOR RT1P137L TP Q909 8 729 026 68 TRANSISTOR 2SD2525 TP Q911 8 729 141 83 TRANSISTOR 2SB1094 LK Q912 8 729 900 36 TRANSISTOR DTC124ES Q913 8 729 119 78 TRANSISTOR 2SC2785 HFE Q914 8 729 119 77 TRANSISTOR 2SA1175 FEK Q923 8 729 900 36 TRANSISTOR DTC124ES Q951 8 729 141 83 TRANSISTOR 2SB1094 LK Q952 8 729 119 77 TRANSISTOR 2SA1175 FEK RESISTO...

Page 74: ...260 076 11 CARBON 10 5 1 2W R406 1 249 437 11 CARBON 47K 5 1 4W R407 1 249 437 11 CARBON 47K 5 1 4W R408 1 249 437 11 CARBON 47K 5 1 4W F R409 1 249 430 11 CARBON 12K 5 1 4W R410 1 249 421 11 CARBON 2 2K 5 1 4W F R411 1 215 894 11 METAL OXIDE 2 2K 5 2W F R413 1 249 402 11 CARBON 56 5 1 4W F R414 1 249 417 11 CARBON 1K 5 1 4W F R415 1 249 429 11 CARBON 10K 5 1 4W R416 1 249 437 11 CARBON 47K 5 1 4W...

Page 75: ... 433 11 CARBON 22K 5 1 4W R816 1 249 429 11 CARBON 10K 5 1 4W R817 1 249 421 11 CARBON 2 2K 5 1 4W F R818 1 249 435 11 CARBON 33K 5 1 4W R819 1 249 439 11 CARBON 68K 5 1 4W R831 1 249 441 11 CARBON 100K 5 1 4W R832 1 249 441 11 CARBON 100K 5 1 4W R833 1 249 437 11 CARBON 47K 5 1 4W R842 1 249 441 11 CARBON 100K 5 1 4W R851 1 249 417 11 CARBON 1K 5 1 4W F R852 1 249 438 11 CARBON 56K 5 1 4W R853 1 ...

Page 76: ...1 1 162 282 31 CERAMIC 100PF 10 50V C652 1 162 282 31 CERAMIC 100PF 10 50V C653 1 162 282 31 CERAMIC 100PF 10 50V C654 1 162 282 31 CERAMIC 100PF 10 50V C655 1 162 282 31 CERAMIC 100PF 10 50V C656 1 162 282 31 CERAMIC 100PF 10 50V C657 1 162 282 31 CERAMIC 100PF 10 50V C658 1 162 282 31 CERAMIC 100PF 10 50V C659 1 162 282 31 CERAMIC 100PF 10 50V C660 1 162 282 31 CERAMIC 100PF 10 50V C661 1 162 28...

Page 77: ... 118 00 TRANSISTOR 2SB1116 L Q603 8 729 119 78 TRANSISTOR 2SC2785 HFE Q604 8 729 422 57 TRANSISTOR UN4111 Q605 8 729 422 57 TRANSISTOR UN4111 Q606 8 729 900 80 TRANSISTOR DTC114ES Q607 8 729 900 74 TRANSISTOR DTC143TS Q608 8 729 900 74 TRANSISTOR DTC143TS Q609 8 729 900 74 TRANSISTOR DTC143TS Q610 8 729 900 74 TRANSISTOR DTC143TS Q611 8 729 900 74 TRANSISTOR DTC143TS Q612 8 729 900 74 TRANSISTOR D...

Page 78: ...BON 22K 5 1 4W R712 1 249 433 11 CARBON 22K 5 1 4W R713 1 249 433 11 CARBON 22K 5 1 4W R714 1 249 437 11 CARBON 47K 5 1 4W R715 1 249 433 11 CARBON 22K 5 1 4W R716 1 249 431 11 CARBON 15K 5 1 4W R717 1 249 433 11 CARBON 22K 5 1 4W R718 1 249 433 11 CARBON 22K 5 1 4W R719 1 247 881 00 CARBON 120K 5 1 4W R721 1 249 429 11 CARBON 10K 5 1 4W R722 1 249 417 11 CARBON 1K 5 1 4W F R723 1 249 441 11 CARBO...

Page 79: ...964 11 ELECT 10uF 20 50V C1220 1 126 964 11 ELECT 10uF 20 50V C1221 1 162 216 31 CERAMIC 51PF 5 50V CONNECTOR CN1201 1 564 788 11 PIN CONNECTOR 8P IC IC1201 8 759 579 61 IC LV1150 COIL L1201 1 410 509 11 INDUCTOR 10uH RESISTOR R1203 1 249 441 11 CARBON 100K 5 1 4W R1204 1 249 441 11 CARBON 100K 5 1 4W R1205 1 249 417 11 CARBON 1K 5 1 4W F R1206 1 249 441 11 CARBON 100K 5 1 4W R1207 1 249 441 11 CA...

Page 80: ...1uF 50V C546 1 124 778 00 ELECT CHIP 22uF 20 6 3V C547 1 165 319 11 CERAMIC CHIP 0 1uF 50V C548 1 165 319 11 CERAMIC CHIP 0 1uF 50V C549 1 126 206 11 ELECT CHIP 100uF 20 6 3V C550 1 165 319 11 CERAMIC CHIP 0 1uF 50V C551 1 126 206 11 ELECT CHIP 100uF 20 6 3V C552 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C554 1 104 527 11 FILM CHIP 100PF 5 50V C555 1 126 206 11 ELECT CHIP 100uF 20 6 3V C556 1 104 527...

Page 81: ... 1 216 073 00 METAL CHIP 10K 5 1 10W R520 1 216 073 00 METAL CHIP 10K 5 1 10W R521 1 216 073 00 METAL CHIP 10K 5 1 10W R522 1 216 025 91 RES CHIP 100 5 1 10W R524 1 216 025 91 RES CHIP 100 5 1 10W R525 1 216 057 00 METAL CHIP 2 2K 5 1 10W R530 1 216 073 00 METAL CHIP 10K 5 1 10W R531 1 216 073 00 METAL CHIP 10K 5 1 10W R532 1 216 065 91 RES CHIP 4 7K 5 1 10W R533 1 216 073 00 METAL CHIP 10K 5 1 10...

Page 82: ...395 11 SWITCH SLIDE SYSTEM SELECT VIBRATOR X501 1 767 510 11 VIBRATOR CERAMIC 10MHz X503 1 767 519 11 VIBRATOR CRYSTAL 27MHz 1 675 906 11 5V POWER BOARD 3 349 019 71 HEAT SINK CAPACITOR C101 1 104 664 11 ELECT 47uF 20 25V C102 1 126 964 11 ELECT 10uF 20 50V C103 1 126 916 11 ELECT 1000uF 20 6 3V CONNECTOR CN101 1 564 507 11 PLUG CONNECTOR 4P DIODE D101 8 719 110 12 DIODE RD9 1ESB1 IC IC101 8 759 4...

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Sony HCD-VX550, Service Manual, Page: 8 / 82

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