Page 1
HCD-V808 3 7 63 1515 0 SERVICE MANUAL E Model Chinese Model HCD-V808 is the tuner, deck, Video CD and amplifier section in MHC-V808. * Dolby noise reduction manufactured Model Name Using Similar Mechanism HCD-V4500 under license from Dolby Laboratories...
Page 2
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
http://www.xiaoyu163.com 3 7 63 1515 0 TABLE OF CONTENTS SERVICING NOTES GENERAL ............... NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT DISASSEMBLY ............The laser diode in the optical pick-up block may suffer electro- static break-down because of the potential difference generated TEST MODE ............
http://www.xiaoyu163.com SECTION 2 DISASSEMBLY 3 7 63 1515 0 • This set can be disassembled in the order shown below. CASE (Page 8) OPTICAL PICK-UP CD MECHANISM DECK SECTION FRONT PANEL SECTION CLEANING (CDM38L-5BD21AL) (Page 12) (Page 8) (Page 9) BASE UNIT TRAY SECTION MAIN BOARD...
Page 8
http://www.xiaoyu163.com 3 7 63 1515 0 Note: Follow the disassembly procedure in the numerical order given. CASE 3 three screws (BVTT 3 × 8) 2 screw (case 3 TP2) (3 × 10) 4 Remove the case to direction of the arrow. 2 screw 1 two screws (case 3 TP2)
Page 9
http://www.xiaoyu163.com 3 7 63 1515 0 CD MECHANISM DECK SECTION (CDM38L-5BD21AL) 1 Turn the cam to direction 8 Removal the CD mechanism deck section of the arrow A . (CDM38L-5BD21AL) to direction of the ar- row B . 9 flat wire (29 core) 3 loading panel (CN101) 7 two screws...
Page 11
http://www.xiaoyu163.com 3 7 63 1515 0 TRAY SECTION claw A claw B 3 flat wire (8 core) (CN702) flat wire Note: When installing the tray, pull around the flat wire 4 two claws to pass through the claw A and claw B, as shown in the figure.
Page 12
http://www.xiaoyu163.com 3 7 63 1515 0 FRONT PANEL SECTION 1 Turn the cam to direction of the arrow A . 3 loading panel 5 screw (BVTP 3 × 10) 5 screw (BVTP 3 × 10) 2 Pull the tray 4 flat wire (21 core) 8 front panel section (CN205) 4 flat wire (17 core)
Page 13
http://www.xiaoyu163.com 3 7 63 1515 0 CAPSTAN MOTOR (M1) 1 connector (CN651) 2 four screws (BTP 2.6 × 4) 3 Removal the AUDIO board to direction of the arrow A . L 13942296513 5 two screws (BTP 2.6 × 8) 7 Removal the capstan motor (M1) to direction of the arrow B .
Page 14
http://www.xiaoyu163.com 3 7 63 1515 0 BELT capstan motor 1 belt (FR) 2 belt A 3 belt B 4 belt (FR) L 13942296513 SLIDER (HEAD) ASS’Y 3 tension spring 2 pinch lever (REV) ass’y 1 claw 1 claw 2 pinch lever (FWD) ass’y u163 4 two clips 5 Break the soldering of...
Page 15
http://www.xiaoyu163.com 3 7 63 1515 0 MAGNETIC HEAD 2 Removal the slider (REV slider) to direction of the arrow. 1 tension spring (1) 4 magnetic head 6 azimuth adjustment spring 3 two screws (P 2 × 6) 5 two azimuth adjustment screws L 13942296513 MAIN BOARD 3 four screws...
http://www.xiaoyu163.com SECTION 3 3 7 63 1515 0 TEST MODE MC COLD RESET CHANGE-OVER OF AM TUNER STEP BETWEEN 9 kHz • The cold reset clears all data including preset data stored in the AND 10 kHz RAM to initial conditions. Execute this mode when returning the •...
Page 17
http://www.xiaoyu163.com 3 7 63 1515 0 AGING MODE 7. In the aging mode, the aging is executed in a sequence given in “2-2. Operation during Aging Mode”. This mode can be used for operation check of CD section and tape The aging continues unless an alarm occurred.
Page 18
http://www.xiaoyu163.com 3 7 63 1515 0 E-F BALANCE MODE VIDEO CD COLOR BAR MODE Refer to the SECTION 6 ELECTRICAL ADJUSTMENTS page On this mode, the data of the color bar signal as a picture signal and the 1 kHz sine wave signal as a sound signal are output by the Procedure: mechanism controller (IC701) for the video CD signal check.
http://www.xiaoyu163.com SECTION 4 SECTION 5 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS 3 7 63 1515 0 PRECAUTION DECK SECTION 0 dB=0.775 V 1. Clean the following parts with a denatured-alcohol-moistened 1. Demagnetize the record/playback head with a head demagne- swab: tizer. (Do not bring the head demagnetizer close to the erase record/playback head pinch roller head.)
Page 20
http://www.xiaoyu163.com 3 7 63 1515 0 2. Turn the adjustment screw and check output peaks. If the peaks Tape Speed Adjustment DECK A do not match for L-CH and R-CH, turn the adjustment screw so Note: Start the Tape Speed adjustment as below after setting to that outputs match within 1 dB of peak.
Page 21
http://www.xiaoyu163.com 3 7 63 1515 0 Adjustment and Connection Location: Record bias Current Adjustment DECK B Procedure: [AUDIO BOARD] (Conductor Side) 1. Mode: Record RECORD pin 6 (L-CH) of IC1501 on the MAIN board. TAPE SPEED BAIS pin #¶ (R-CH) of IC1501 on the MAIN board. ...
http://www.xiaoyu163.com 3 7 63 1515 0 RF signal waveform CD SECTION VOLT/DIV: 200 mV TIME/DIV: 500 ns Notes: (with the 10: 1 probe 1. CD block basically constructed to operate without adjustment. in use) Therefore, check each item in order given. 2.
http://www.xiaoyu163.com 3 7 63 1515 0 When a general remote commander is not used (1 Track Jump VIDEO SECTION Check): Frequency Adjustment Procedure: Connection: 1. Connect the oscilloscope to TP (TE) and TP (VC) on BD board. 2. Turned power switch on. frequency counter 3.
http://www.xiaoyu163.com SECTION 6 DIAGRAMS 3 7 63 1515 0 6-1. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC301 µPD780016YGF-015-3BA (MASTER CONTROLLER) Pin No. Pin Name Function TA-MUTE Line mute control signal output terminal “L”: mute on DBFB-H/L DBFB normal/high selection signal output terminal “L”: DBFB high, “H”: DBFB low 427-LAT Serial data latch pulse output to the electrical volume (IC201) K-CON-LAT...
Page 25
http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function Serial data transfer clock signal output to the electrical volume (IC201), DJ effect controller COM-CLK (IC401), and key control (IC1401) CD-POWER Power on/off selection signal output for the CD circuit “H”: power on CD-DATA Serial data output terminal Not used (open) CD-CLK...
Page 26
http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function CAP-M-ON/OFF Capstan motor on/off control signal output terminal “L”: capstan motor on PB-A/B Deck-A/B selection signal output to the HA12203NT (IC1501) “L”: deck-A, “H”: deck-B Normal/high speed selection signal output to the HA12203NT (IC1501) EQ-H/N “L”: normal speed, “H”: high speed Recording bias on/off selection signal output to the HA12203NT (IC1501)
Page 27
http://www.xiaoyu163.com 3 7 63 1515 0 • PANEL BOARD IC601 TMP87CM75-6564 (FLUORESCENT INDICATOR TUBE DRIVER, KEY CONTROL, LED DRIVER) Pin No. Pin Name Function SEG-35 Segment drive signal output to the fluorescent indicator tube (FL601) V-LOAD — Power supply terminal (–30 V) (for fluorescent indicator tube drive) LED1 LED drive signal output terminal (deck-A ·...
Page 29
http://www.xiaoyu163.com 3 7 63 1515 0 • VIDEO BOARD IC701 HD6433032SK12F (CD MECHANISM CONTROLLER) Pin No. Pin Name Function CMD0 CMD1 Two-way data bus with the IIC interface controller (IC901) CMD2 CMD3 SACK Data acknowledge output to the IIC interface controller (IC901) QINT Interrupt status output to the IIC interface controller (IC901) VDAC-XLAT...
Page 30
http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function STBY Hardware standby signal input terminal (fixed at “H”) RESET Reset signal input from the IIC interface controller (IC901) “L”: reset Non-maskable interrupt input terminal (fixed at “H”) — Ground terminal EXTAL System clock output terminal (10 MHz)
Page 31
http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 • VIDEO BOARD IC901 µPD780016YGF-012-3BA (IIC INTERFACE CONTROLLER) Pin No. Pin Name Function Pin No. Pin Name Function NR-XCS Chip select signal output to the video noise reduction (IC301) 1 to 8 P80 to P87 Not used (fixed at “L”) Not used (fixed at “L”)
Page 32
http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
Page 33
http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3...
Page 34
http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
Page 35
http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3...
Page 36
http://www.xiaoyu163.com 3 7 63 1515 0 • Circuit Boards Location TRANS board ENCAPSULATED COMPONENT DECO board (FM/AM TUNER UNIT) CD SW board PANEL board KEYCON board HP/MIC board DJ board MAIN board L 13942296513 TC SW board AMP board SENSOR board MOTOR (TURN) board CONNECTOR board VIDEO board...
Page 37
http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
http://www.xiaoyu163.com SECTION 7 EXPLODED VIEWS 3 7 63 1515 0 NOTE: The components identified by mark • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they ! or dotted line with mark ! are may have some difference from the original are seldom required for routine service.
Page 56
http://www.xiaoyu163.com 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-989-904-01 SPRING (B DECK) 4-990-129-01 SPRING (OPEN A) X-4948-117-1 LID (B) ASSY, CASSETTE (MY) 4-951-620-01 SCREW (2.6X8), +BVTP X-4948-119-1 LID (B) ASSY, CASSETTE (EXCEPT MY) 3-363-099-01 SCREW (CASE 3 TP2) (3X8) X-4948-116-1 LID (A) ASSY, CASSETTE (MY) 3-363-099-41 SCREW (CASE 3 TP2) (3X10)
Page 57
http://www.xiaoyu163.com 3 7 63 1515 0 (2) FRONT PANEL SECTION not supplied L 13942296513 supplied not supplied supplied with S602 u163 – 92 – http://www.xiaoyu163.com...
Page 62
http://www.xiaoyu163.com 3 7 63 1515 0 (5) CD MECHANISM DECK SECTION-2 (CDM38L-5BD21AL) M801 L 13942296513 BU-5BD21AL S811 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 262 1-658-578-11 MOTOR (SLIDE) BOARD 4-917-583-71 BRACKET, YOKE 4-977-954-01 PULLEY (SL) 4-982-447-01 SPRING (BU), COMPRESSION 4-977-953-01 GEAR (SL-A) 4-951-620-41 SCREW (2.6), +BVTP...
Page 63
http://www.xiaoyu163.com 3 7 63 1515 0 (6) BASE UNIT SECTION (BU-5BD21AL) L 13942296513 M101 M102 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref.
Page 64
http://www.xiaoyu163.com 3 7 63 1515 0 (7) TAPE MECHANISM DECK SECTION-1 (TCM-220WR2) (including r C) HP101 (including r A) not supplied not supplied not supplied HRPE101 L 13942296513 (including r B) not supplied not supplied not supplied not supplied Ref. No. Part No.
Page 65
http://www.xiaoyu163.com 3 7 63 1515 0 (8) TAPE MECHANISM DECK SECTION-2 (TCM-220WR2) r C: MOTOR board L 13942296513 supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-908-597-01 CAM (A) X-3370-171-1 FLYWHEEL (BR) ASSY 3-908-608-11 SCREW, STEP 3-908-600-01 LEVER (REV-B) X-3372-930-1 ARM (A) ASSY, FR * 416...
http://www.xiaoyu163.com SECTION 8 3 7 63 1515 0 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark parts list may be different from the parts speci- are seldom required for routine service.
Page 82
http://www.xiaoyu163.com VIDEO 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R217 1-216-073-00 METAL CHIP 1/10W R457 1-216-635-11 METAL CHIP 0.5% 1/10W R218 1-216-073-00 METAL CHIP 1/10W R458 1-216-295-00 CONDUCTOR, CHIP (2012) R219 1-216-073-00 METAL CHIP 1/10W...
Page 83
http://www.xiaoyu163.com VIDEO VIDEO OUT VIDEO POWER 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R905 1-216-073-00 METAL CHIP 1/10W < SWITCH > R906 1-216-073-00 METAL CHIP 1/10W R907 1-216-085-00 METAL CHIP 1/10W S9001 1-571-589-11 SWITCH, SLIDE (SYSTEM SELECT)