Pioneer DV-646A Service Manual
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Pioneer DV-646A Service Manual

Pioneer DV-646A Service Manual

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DVD PLAYER

DV-646A
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
DV-646A
WYXJ
CONTENTS
1. SAFETY INFORMATION ....................................... 2
4. PCB CONNECTION DIAGRAM ........................... 39
5. PCB PARTS LIST ................................................ 51
6. ADJUSTMENT ..................................................... 55
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
c
PIONEER CORPORATION 2001
STANDBY/ON
Power Requirement
AC220-240V
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
AUDIO/VIDEO
LEGATO
7
3
0
4 1
¡ ¢
8
PRO
FL DIMMER
Î
FL OFF
Region No.
2
7. GENERAL INFORMATION ................................ 61
7.1 DIAGNOSIS .................................................. 61
PICKUP DEFECTIVE ........................... 63
7.1.3 TEST POINTS LOCATION ................... 64
7.1.5 TROUBLE SHOOTING ........................ 70
7.1.6 ERROR CODE ..................................... 71
7.1.7 DISASSEMBLY .................................... 75
7.2 IC .................................................................. 80
ORDER NO.
RRV2453
Remarks
T - ZZE JUNE 2001 Printed in Japan

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  • Page 1: Table Of Contents

    PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2001 T –...

  • Page 2: Safety Information

    DV-646A 1. SAFETY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.

  • Page 3: Exploded Views And Parts List

    DV-646A 2. EXPLODED VIEWS AND PARTS LIST • NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. • mark found on some component parts indicates the importance of the safety factor of the part.
  • Page 4 DV-646A 2.2 EXTERIOR SECTION Refer to "2.3 LOADING MECHANISM ASSY".
  • Page 5 VNL1927 Insulator VXA2424 DVD-A/V Plate VAM1118 Sub Plate VEC2205 FL Lens VEC2211 FL Filter VEC2213 Tray Panel VNK4819 Front Panel Assy VXA2447 Pioneer Name Plate VAM1109 Label VRW1872 ID Label VRW1877 Screw BBZ30P060FMC Screw BBZ30P080FZK Screw BBZ30P180FMC Screw BCZ40P060FZK Screw...
  • Page 6 DV-646A 2.3 LOADING MECHANISM ASSY Note : Refer to " Apply Position of Lubricant". Refer to "2.4 TRAVERSE MECHANISM ASSY-S". Daifree GEM1036 To DVDM CN101 Lubricating Oil GYA1001 Lubricating Oil GYA1001 • LOADING MECHANISM ASSY PARTS LIST Mark No. Description Part No.
  • Page 7 DV-646A Apply Position of Lubricant Lubricating Oil GYA1001 Around the shaft No. 11 Loading Base Lubricating Oil GYA1001 Lubricating Oil GYA1001 No. 13 Lubricating Oil Drive Cam GYA1001 No. 13 Top View Drive Cam Rear View Inner side of a ditch...
  • Page 8 DV-646A 2.4 TRAVERSE MECHANISM ASSY-S 17 (Torque : 0.12 ± 0.01 N•m) Silicone Adhesive GEM1037 Silicone Adhesive GEM1037 4 (Adjustment Screw) (Torque : 0.12 ± 0.01 N•m) 4 (Adjustment Screw) Screw Tight GYL1001 Silicone Adhesive GEM1037 17 (Torque : 0.12 ± 0.01 N•m) •...
  • Page 9 DV-646A...

  • Page 10: Block Diagram And Schematic Diagram

    DV-646A 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM 3.1.1 SIGNAL ROUTE DVDM ASSY RD1-RD8 CN101 (24P) (24P) 149,150, BD0-BD7 57-60 IC701 152-155, Spindle DSP RF 63-66 ROMXA OEIC IC101 158,159 PE5220A Motor CDDATA LA9701M DVD DECODER BY CHIP...

  • Page 11: Scrb Assy

    DV-646A IC491 IC401 TC74VHC153FT CN302 TC7SH04FU CN401 (40P) (40P) JA401 22/24M Q391 DOUT0 IC801 DOUT COAXIAL DOUT1 M65774BFP DIGITAL AUDIO OUT IC904 MPEG2 DACCLK OPTICAL DACCLK LC89051V IC906 DECODER IC441 TC74VHC157FT IC331 AV-1 CS4392-KS JA501 PD0274A 95-98, DATA0 100-103 IC442-1/2...
  • Page 12 DV-646A 3.1.2 AUDIO DATA STREAM (ANALOG OUTPUT)
  • Page 13 DV-646A 3.1.3 AUDIO DATA STREAM (COAXIAL/OPTICAL OUTPUT)

  • Page 14: Power Supply Block

    DV-646A 3.1.4 POWER SUPPLY BLOCK 2.5V REG. V+3V V+2R5V IC301 BA25BCOFP DV-646A/WYXJ: GND EXCEPT DV-646A/WYXJ: SW+3.3V CN101 CN303 EXCEPT (14P) (14P) DV-646A R439 V+5V V+5A /WYXJ LIVE DV-646A AC IN SW+3.3V R440 /WYXJ ONLY NEUTRAL SW+5V SW+12V R794 R790 V+12V...
  • Page 15 DV-646A...

  • Page 16: Loab Assy And Overall Wiring Diagram

    DV-646A 3.2 LOAB ASSY and OVERALL WIRING DIAGRAM Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". 1/3- AVJB ASSY (VWV1866) SCRB ASSY FLIR ASSY (VWV1850) (VWG2297) POWER SUPPLY UNIT...
  • Page 17 DV-646A (RF) : RF SIGNAL ROUTE : FOCUS SERVO LOOP LINE : TRACKING SERVO LOOP LINE : SLIDER SERVO LOOP LINE PICKUP ASSY-S (OXX8003) (RF) (RF) (RF) 1/4- SPINDLE DVDM ASSY (VWS1470) MOTOR : VXX1088 LOAB ASSY (VWG2279) LOADING MOTOR...
  • Page 18 DV-646A 3.3 DVDM ASSY (1/4) DVDM ASSY (VWS1470) (RF) RF IC CN101 (RF) FTS DRIVER CN103 CN105 CN601 (F) (F) CN104...
  • Page 19 DV-646A : The power supply is shown with the marked box. (RF) : RF SIGNAL ROUTE : RF (VIDEO) SIGNAL ROUTE : RF (AUDIO) SIGNAL ROUTE (AD) : AUDIO DATA SIGNAL ROUTE : FOCUS SERVO LOOP LINE : TRACKING SERVO LOOP LINE...
  • Page 20 DV-646A 3.4 DVDM ASSY (2/4) DVDM ASSY (VWS1470) PGM FLASH MEMORY VYW1835...
  • Page 21 DV-646A : The power supply is shown with the marked box. CN501 CLOCK GENERATOR 2/4, 4/4 (VD) (VD) CN601 3.3 → 5V CONVERTOR CN401 5 → 3.3V CONVERTOR CN302 (VD) : VIDEO DATA SIGNAL ROUTE : AUDIO (DIGITAL) SIGNAL ROUTE...
  • Page 22 DV-646A 3.5 DVDM ASSY (3/4) DVDM ASSY (VWS1470) 2/4, 4/4 64M DRAM (VD) (VD) SCRUT...
  • Page 23 DV-646A : RF (VIDEO) SIGNAL ROUTE (VD) : VIDEO DATA SIGNAL ROUTE (AD) : AUDIO DATASIGNAL ROUTE : AUDIO SIGNAL ROUTE : AUDIO (DIGITAL) SIGNAL ROUTE (VD) (VD) (VD) AV-1 2/4, 4/4...
  • Page 24 DV-646A 3.6 DVDM ASSY (4/4) DVDM ASSY (VWS1470) DVD-AUDIO DSP...
  • Page 25 DV-646A : The power supply is shown with the marked box. : AUDIO (DIGITAL) SIGNAL ROUTE 1.8V REGULATOR...
  • Page 26 DV-646A 3.7 AVJB ASSY (1/3) AVJB ASSY (VWV1866) CN101 CN401 CN101...
  • Page 27 DV-646A : The power supply is shown with the marked box. R1041 R1046 R1051 R1042 R1047 R1052 R1043 R1048 R1053 : AUDIO (DIGITAL) SIGNAL ROUTE R1044 R1049 R1054 : AUDIO SIGNAL ROUTE R1045 R1050 R1055 GNDD GNDD GNDD GNDD GNDD GNDD...
  • Page 28 DV-646A 3.8 AVJB ASSY (2/3) AVJB ASSY (VWV1866) CN601 (VD) VIDEO ENCODER (VD)
  • Page 29 DV-646A (VD) : V SIGNAL ROUTE : VIDEO DATA SIGNAL ROUTE : Y SIGNAL ROUTE : R SIGNAL ROUTE : C SIGNAL ROUTE : G SIGNAL ROUTE : B SIGNAL ROUTE Q601 2SA1037K Q604 2SA1037K Q602 2SA1037K Q605 2SA1037K Q603...
  • Page 30 DV-646A 3.9 AVJB ASSY (3/3) AVJB ASSY (VWV1866) Q701 2SA1037K Q702 2SA1037K Q703 2SA1037K Q774 2SA1037K 6dB, 75Ω DRIVER Q771 2SA1037K 6dB, 75Ω DRIVER Q768 2SA1037K...
  • Page 31 DV-646A (Y/V) : V SIGNAL ROUTE : Y/V SIGNAL ROUTE (R/C) : Y SIGNAL ROUTE : R/C SIGNAL ROUTE : C SIGNAL ROUTE : R SIGNAL ROUTE : AUDIO SIGNAL ROUTE : G SIGNAL ROUTE : B SIGNAL ROUTE 3 IN 6 OUT VIDEO AMP.
  • Page 32 DV-646A 3.10 SCRB ASSY SCRB ASSY (VWV1850) Q403 2SA1037K Q401 2SC2412K CN101 Q403 2SA1037K Q401 2SC2412K (Y/V) CN702 (R/C) (R/C) Q401 2SC2412K Q401 2SC2412K (Y/V) Q401 2SC2412K (Y/V) Q401 2SC2412K...
  • Page 33 DV-646A (Y/V) : V SIGNAL ROUTE : Y/V SIGNAL ROUTE (R/C) : The power supply is shown with the marked box. : Y SIGNAL ROUTE : R/C SIGNAL ROUTE : AUDIO SIGNAL ROUTE : G SIGNAL ROUTE : B SIGNAL ROUTE...
  • Page 34 DV-646A 3.11 FLIR, PWSB and KEYB ASSYS FLIR ASSY (VWG2297) FL CONTROL MICROCOMPUTER...
  • Page 35 DV-646A : The power supply is shown with the marked box. KEYB ASSY (VWG2306) CN103 CN251 PWSB ASSY (VWG2307) CN102 CN201 CN101 KEYB ASSY S251 : 0 (OPEN/CLOSE) S252 : 3 (PLAY) CN301 S253 : 4 1 S254 : 4 1...
  • Page 36 DV-646A 3.12 POWER SUPPLY UNIT (VWR1340)

  • Page 37: Dvdm Assy

    DV-646A WAVEFORMS Note : The encircled numbers denote measuring point in the schematic diagram. DVDM ASSY AVJB ASSY Measurement condition : No. 1 to 4 and 6 to 11 : MJK1, Title 1-chp 1 Measurement condition : No. 1 to 3 : MJK1, Title 1-chp 4 No.
  • Page 38 DV-646A...

  • Page 39: Pcb Connection Diagram

    DV-646A 4. PCB CONNECTION DIAGRAM NOTE FOR PCB DIAGRAMS : 1. Part numbers in PCB diagrams match those in the schematic 3. The parts mounted on this PCB include all necessary parts for diagrams. several destinations. 2. A comparison between the main parts of PCB and schematic For further information for respective destinations, be sure to diagrams is shown below.
  • Page 40 DV-646A 4.2 DVDM ASSY DVDM ASSY SIDE A (VNP1825-A) IC401 IC911 IC912 IC901 Q101 Q118 IC281 Q543 IC351 IC532 IC211 IC261 Q102 Q116 Q107 Q542 Q112 Q571 IC210 IC702 Q115 Q117 Q291 Q292 IC291 IC201 IC491 IC601 Q111 Q141 Q241...
  • Page 41 DV-646A SIDE B DVDM ASSY STEPPING SPINDLE PICKUP MOTOR CN601 MOTOR ASSY (CARRIAGE) (VNP1825-A) IC251 Q103 IC271 Q109 Q108 Q130 IC903 IC909 IC910 IC608 Q271 Q281 IC101 Q142 Q161 IC913 IC701 IC902 IC612 IC905 Q113 IC907 Q601 IC299 IC801 IC306...
  • Page 42 DV-646A 4.3 AVJB ASSY AVJB ASSY CN101 CN401 CN101 IC391 Q391 Q421 Q554 Q558 Q504 Q508 Q452 Q449 Q444 Q447 IC421 IC422 Q552 Q556 Q502 Q506 Q442 Q446 IC311 IC312 IC353 IC552 IC352 IC502 Q441 IC442 Q445 IC313 IC314 IC361...
  • Page 43 DV-646A CN101 SIDE A CN501 (VNP1839-A) VR602 VR601 VR951 Q791 IC701 Q704 IC702 Q1002 Q1001 IC791 Q701 Q702 Q703 Q705 Q601 Q602 Q603 Q604 Q605 IC710 IC708 IC706 IC707 IC705 IC704 IC703 Q983 IC601 Q601 IC901 IC709 Q982 IC905 IC902...
  • Page 44 DV-646A SIDE B (VNP1839-A) Q708 Q707 Q706 Q768 Q771 Q774 Q450 IC921...
  • Page 45 DV-646A AVJB ASSY Q450 Q457 Q451 Q448 Q456 Q507 Q505 Q501 Q503 Q557 Q555 Q551 Q553 IC331 IC301...
  • Page 46 DV-646A 4.4 SCRB ASSY SCRB ASSY SIDE A (VNP1838-A)
  • Page 47 DV-646A SCRB ASSY SIDE B Q212 Q211 Q231 Q231 Q313 Q311 Q312 Q401 Q403 (VNP1838-A)
  • Page 48 DV-646A 4.5 FLIR ASSY IC103 Q101 IC111 CN301 SIDE A FLIR ASSY (VNP1839-A) SIDE B IC101...
  • Page 49 DV-646A 4.6 PWSB and KEYB ASSYS SIDE A PWSB ASSY (VNP1839-A) SIDE B SIDE A KEYB ASSY (VNP1839-A) SIDE B...

  • Page 50: Power Supply Unit

    DV-646A 4.7 POWER SUPPLY UNIT AC IN POWER SUPPLY UNIT IC201 IC103 Q401 IC102 CN303 Q402 Q410 Q412 Q411 SIDE A...

  • Page 51: Pcb Parts List

    DV-646A Mark No. Description Part No. Mark No. Description Part No. 5. PCB PARTS LIST • NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. • mark found on some component parts indicates the importance of the safety factor of the part.
  • Page 52 DV-646A Mark No. Description Part No. Mark No. Description Part No. C368, C369, C401, C407, C413 CEV101M16 R873 RAB4C220J C944 CEV101M16 R123 RAB4C470J C113, C139 CEV220M16 R202, R341 RS1/10S101J C147, C405, C410, C452, C620 CEV221M4 R126–R129, R176–R179 RS1/10S220J C623, C701, C702, C710, C803...
  • Page 53 DV-646A Mark No. Description Part No. Mark No. Description Part No. R533, R534, R536, R581 RN1/16SE3301D CAPACITORS R583, R584, R586 RN1/16SE3301D C477, C497, C532, C533, C579 CCSRCH101J50 R666, R667, R726–R728 RS1/16S1201F C581 CCSRCH101J50 R655 RS1/16S1502F C462, C465, C482, C485, C512...

  • Page 54: Power Supply Unit

    DV-646A Mark No. Description Part No. Mark No. Description Part No. FLIR ASSY POWER SUPPLY UNIT SEMICONDUCTORS OTHERS IC101 PE5251A P101 PROTECTOR (800mA) AEK7063 IC103 PST3242 P102 PROTECTOR (1.6A) AEK7066 IC111 TSOP1840XG1 FU1 FUSE (2.5A) REK1102 D101 SLR-56VC(NPQ) COILS AND FILTERS...

  • Page 55: Adjustment

    DV-646A 6. ADJUSTMENT 6.1 ADJUSTMENT ITEMS AND 6.2 JIGS AND MEASURING LOCATION INSTRUMENTS Adjustment Items [Mechanism Part] Tangential and Radial Height Coarse Adjustment DVD Jitter Adjustment Initialize the Focus Sweep Setting [Electrical Part] Screwdriver (large) Screwdriver (medium) Electrical adjustments are not required.

  • Page 56: Necessary Adjustment Points

    DV-646A 6.3 NECESSARY ADJUSTMENT POINTS When Adjustment Points Exchange Parts of Mechanism Assy ∗ After adjustment, screw locks Mechanical ~, Ÿ, ! Exchange the Pickup point with the Screw tight. Electric point Mechanical Exchange the Traverse Mechanism point Electric point ∗...

  • Page 57: Test Mode

    DV-646A 6.4 TEST MODE TEST MODE: ON TEST POWER GGF1067 Test mode remote control unit TEST MODE: DISC SET CHECK <TRAY OPEN> DVD, CD OPEN/CLOSE OPEN/CLOSE DVD disc (Player or Remote (Player or Remote Control Unit) Control Unit) &&& DSC - TEST MODE: PLAY <PLAY>...

  • Page 58: Mechanism Adjustment

    DV-646A 6.5 MECHANISM ADJUSTMENT Tangential and Radial Height Coarse Adjustment START Cautions: • Remove the servo mechanism. Because there is not a Spacer for height adjustment in • Remove a Spacer for height adjustment adjustment after the second time, will keep it at need.

  • Page 59: Dvd Jitter Adjustment

    DV-646A DVD Jitter Adjustment • Playback method of inner and outer address for the purpose is refererd to "6.3 TEST MODE". Use disc: GGV1025 • Jitter indication of the monitor is refererd to "7.1.3 TEST MODE SCREEN DISPLAY". START Mechanism Assy •...
  • Page 60 DV-646A Initialize the Focus Sweep Setting Purpose: To set the sweep which was correct with the individual Traverse mechanism. Turn on the Player POWER CLEAR Note: Be sure to perform this step when replaced the Pickup or Traverse mechanism.

  • Page 61: General Information

    DV-646A 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 ID NUMBER AND ID DATA SETTING Entering the ID Number and ID Data for Players with DVD-Audio Compatibility It is necessary with a player with DVD-audio compatibility to set an individual number (ID number) and ID data. If the number and data are not set correctly with the following procedure, operations in the future may not be guaranteed.
  • Page 62 DV-646A When the ID data have been read, the data are written to the When the ID data have been written to the FLASH-ROM, the FLASH-ROM. message "Rom Write OK" is displayed on the screen. (The FL display indicates "WR ID DATA.") (The FL display indicates "ID DATA OK.")

  • Page 63: Self-Diagnostic Function Of Pickup Defective

    DV-646A 7.1.2 SELF-DIAGNOSTIC FUNCTION OF PICKUP DEFECTIVE This unit can confirm the laser diode current value (DVD: 650nm, CD: 780nm) of pickup on the Test Mode screen. (Press the ESC → TEST keys in order on the test mode remote control unit (GGF1067) to enter the test mode.) It's effective in case of the following condition.

  • Page 64: Test Points Location

    DV-646A 7.1.3 TEST POINTS LOCATION This model has not test terminal. Please use following points on the DVDM Assy when checking RF, FE and TE, etc.. DVDM ASSY SIDE A Vref...
  • Page 65 DV-646A DVDM ASSY SIDE B...

  • Page 66: Test Mode Screen Display

    DV-646A 7.1.4 TEST MODE SCREEN DISPLAY TEST MODE SCREEN DISPLAY When the test mode is entered, press the ESC button and the TEST button in order of the test mode remote control unit (GGF1067). Consecutive double-OSD display is supported during test mode. The screen is composed 10 lines with a maximum of 32 characters per line.
  • Page 67 DV-646A (10) Output video system [V – ∗ ∗ ∗ ∗] (20) 1 Version of the flash ROM [V : ∗ . ∗ ∗ ∗] 2 Flash ROM size [FLSH = ∗] NTSC system [NTSC] PAL system [PAL ] (21) Revision of the system controller [S : ∗ . ∗ ∗ ∗ / ∗ . ∗ ∗ ]...

  • Page 68: Screen Layout

    DV-646A DEBUGGING SCREEN SPECIFICATION FOR THE MECHANISM CONTROLLER • This specifications is subject to change without notice. 1 Indication Method of The Mechanism Controller Debugging Screen A debugging screen of the mechanism controller is indicated when pressing the test mode remote control unit [GGF1067] in order of the buttons.
  • Page 69 DV-646A 15. Disc distinction threshold value (CD and unrecorded 27. It indicates the frequency that entered the internal disc) circumference plunging into backup of the sled Threshold value of the disc distinction. Distinguish it from Hexadecimal number indication. Counter does not reset till CD if bigger than this value, and distinguish it from an turns the power off after turning it on.

  • Page 70: Trouble Shooting

    DV-646A 7.1.5 TROUBLE SHOOTING • No Power ON • FL is not turned ON • FL indication is unusual START Power ON • Blow out fuse of the primary side • Blow out micro-fuse on the POWER SUPPLY Unit. (Check the each voltage.) (P101 and P102) •...

  • Page 71: Error Code

    DV-646A 7.1.6 ERROR CODE Error codes that are displayed on the FL display without using the remote control unit FL Display Possible causes Operation of the unit The sound may not out AV1 VER AV-1 chip is not a match with the program of system controller with the specific audio.
  • Page 72 DV-646A Description Operation Causes if with a DVD Causes if with a CD of Error of the Unit Adjusts focus at the innermost circumference and tries to return to its position where the error 33 No FOK pulse during was generated (for 3 When the focus was deviated continuously 20 times.
  • Page 73 DV-646A Description Operation Causes if with a DVD Causes if with a CD of Error of the Unit Auto sequence ABUSY did not return within 200 mS after the timeout of Stop ADJMIR (modulation factor measurement) modulation factor command was sent.
  • Page 74 DV-646A Description Causes if with a DVD Causes if with a CD Operation of the Unit of Error The tray switch that had been Open mode was forcibly changed to a mode other than F5 Tray being pushed Closes Open by an external force.

  • Page 75: Disassembly

    DV-646A 7.1.7 DISASSEMBLY DIAGNOSIS OF PCBs Note When diagnosing the unit, be sure to use two connection cables for service. (Part No. : GGD1271) Bonnet and Tray Panel Front Panel Assy Remove the Bonnet (Screws × 7) Unhook (×6) Power ON...
  • Page 76 DV-646A Styling of the Connection Cables Diagnosis (2) Remove the Rear Panel (Screws × 15) Connect two Connection Cables for Service (GGD1271) between DVDM Assy and AVJB Assy. Remove the PCBs (Screws × 14) Remove two screws. Arrange the Loading Mechanism Assy and the PCBs like the figure below.
  • Page 77 DV-646A Disassembly of the Traverse Mechanism Assy and the Pickup Assy Remove the DVDM Assy (Screws ×2). Remove the Bonnet and Tray Panel. Remove the Front Panel. Remove a screw. Remove the Loading Mechanism Assy (Screws ×4). Cautions: Screw is locked with Silicone adhesive.
  • Page 78 DV-646A When Removing The Pickup Assy Remove two screws. Remove the Pickup Flexible Cable. Cautions: Screw is locked with Silicone adhesive. Please lock it with Silicone adhesive when installs it. Silicone Adhesive GEM1037 Slider Hold Spring Traverse Mechanism Assy Pickup Assy...
  • Page 79 DV-646A Styling the Pickup Flexible Cable Fold a edge of lining part of the Pickup Flexible Cable. Insert the Pickup Flexible Cable in connector, and lock it surely. Pickup Assy Bottom View Conducting plane FFC Holder Caution: Move the Pickup to the innermost of the disc.
  • Page 80 DV-646A 7.2 IC • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. • List of IC LA9701M, LC78652W, BA6664FM, PD6345A, M65774BFP, XCA5636PV150, ADV7190KST, PE5251A LA9701M (DVDM ASSY : IC101) •...
  • Page 81 DV-646A LC78652W (DVDM ASSY : IC201) • Servo DSP IC • Block Diagram SLDO Servo TILTE 8bit 8bit SPDO Processor RF_PH (16×16+32→32) TBAL RF_BH TILTDO AUXO JITT HFLIO Track Counter FAST PP2/EVENT Event Counter DVDSYEQ FG Counter SLCIST1,2 34,35 EFMIN...
  • Page 82 DV-646A • Pin Function t f i − − l l i t t i y t i t l i − − − − a i l t l i −...
  • Page 83 DV-646A r r i t i r − − − − l a i t f i − − l l i l i f − t l i f t l i f t l i f − −...
  • Page 84 DV-646A BA6664FM (DVDM ASSY : IC251) • Three-phase Motor Driver • Block Diagram A3 2 DRIVER A2 4 GAIN GAIN SWITCH CONTROL A1 7 CURRENT SENSE AMP HALL AMP TORQUE GND 8 SENSE AMP H1+ 9 H1- 10 H2+ 11...
  • Page 85 DV-646A PD6345A (DVDM ASSY : IC601) • FR CPU • Pin Function − − − − − −...
  • Page 86 DV-646A t i s t i s − − − − d i l t i s l l o l l o − − " r " L " : " L − L " : " t s i L "...
  • Page 87 DV-646A − − − i t l c t i − c t i − − " " L " ) " l a i l a i l a i − c t i − − l a i l e l −...
  • Page 88 DV-646A − − − − x i f − − x i f − − − ←...

  • Page 89: Block Diagram

    DV-646A M65774BFP (DVDM ASSY : IC801) • MPEG2 Decoder IC • Block Diagram 16M bit SDRAM SDRAM Bit Streem Descrambler Controller Bit Streem Input Interface Video Decoder Sub-picture Decoder Internal Display Processor Special Playback 16M DRAM Processor Host Host CPU...
  • Page 90 DV-646A − y l l n i l − n i l − n i l n i l...
  • Page 91 DV-646A n i l n i l n i l n i l n i l n i l n i l n i l n i l n i l n i l n i l n i l...
  • Page 92 DV-646A XCA56367PV150 (DVDM ASSY : IC901) • DVD-Audio decoder • Pin Arrangement SCK/SCL SS#/HA2 HREQ# SDO0/SDO0_1 SDO1/SDO1_1 GNDD SDO2/SDI3/SDO2_1/SDI3_1 VCCD SDO3/SDI2/SDO3_1/SDI2_1 VCCS GNDS SDO4/SDI1 SDO5/SDI0 GNDA SCKT VCCQH SCKR HCKT HCKR VCCQL VCCQL GNDQ GNDQ VCCQH HDS/HWR HRW/HRD GNDA HACK/HRRQ...
  • Page 93 DV-646A • Pin Function Ι − − − − − − c i t − − i l l v i t...
  • Page 94 DV-646A − − − t i c t l i f − − − − − − − − l a i − −...
  • Page 95 DV-646A − − − − − − − − − − − −...
  • Page 96 DV-646A − − − − − − − − l a i l a i...
  • Page 97 DV-646A ADV7190KST (AVJB ASSY : IC601) • Video Encoder IC • Pin Arrangement 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 SET1 PIN 1 IDENTIFIER COMP 1 DAC A DAC B ADV7190/ADV7191...
  • Page 98 DV-646A • Pin Function Input / Mnemonic Output Function 1–16 P0–P15 8-Bit or 16-Bit 4:2:2 Multiplexed YCrCb Pixel Port. The LSB of the input data is set up on Pin P0. 17, 25, 29, Analog Power Supply (3.3 V to 5 V).
  • Page 99 DV-646A PE5251A (FLIR ASSY : IC101) • Mode Control IC • Pin Function Pin Name Pin Function − VDD1 Positive power supply (excepting port, analog and FIP controller/driver section) − VSS1 Ground (excepting port and analog) Connect a crystal for main system clock oscillation −...
  • Page 100 DV-646A Pin Name Pin Function 41 P45 Port 4 8-bit high proof pressure input/output ports of P-ch open drain 42 P44 43 P43/FIP35 44 P42/FIP34 Port 4 8-bit high proof pressure input/output ports of P-ch open drain / High proof presure large current output...

  • Page 101: Panel Facilities And Specifications

    DV-646A 8. PANEL FACILITIES AND SPECIFICATIONS 8.1 PANEL FACILITIES 8.1.1 Front Panel...
  • Page 102 DV-646A 8.1.2 Remote Control...
  • Page 103 DV-646A 8.1.3 Display Window...
  • Page 104 DV-646A...

  • Page 105: Specifications

    DV-646A 8.2 SPECIFICATIONS Accessories Audio Cable (L=1.5m): VDE1052 White Video Cable (L=1.5m): VDE1053 Yellow Power Cable : ADG1154 Remote Control Unit : VXX2627 Dry Cell Battery (R6P,AA) • Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories.

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