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Pioneer DV-2850S Service Manual

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DVD PLAYER

DV-2850-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
DV-2850-S
WYXTL
DV-2850-S
WVXTL
For details, refer to "
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) 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 2005
Power Requirement
AC220-240V
AC220-240V
Important Check Points for Good Servicing
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
O E / L SE
TA DB /ON
DV-2850-S
Region No.
" .
ORDER NO.
DV-2850
DVD PLAYER
OP
ENU
M NU
RRV3123
E
ME U
E UR
Remarks
2
2
T-ZZR MAR. 2005 printed in Japan

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  • Page 1: Dvd Player

    PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) 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 2005 T-ZZR MAR.

  • Page 2: Safety Information

    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. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
  • Page 3 [Important Check Points for Good Servicing] In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures. 1. Product safety Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual.

  • Page 4: Table Of Contents

    CONTENTS SAFETY INFORMATION ............................. 2 1. SPECIFICATIONS ............................5 2. EXPLODED VIEWS AND PARTS LIST ......................6 2.1 PACKING SECTION ..........................6 2.2 EXTERIOR SECTION..........................8 2.3 05 DVD MECHA SECTION........................10 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..................12 3.1 BLOCK DIAGRAM ...........................

  • Page 5: Specifications

    Published by Pioneer Corporation. (color) - Output level ..0.7 Vp-p (75 Ω) Copyright © 2005 Pioneer Corporation. All rights reserved ......RCA...

  • Page 6: Exploded Views And Parts List

    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. Therefore, when replacing, be sure to use parts of identical designation.
  • Page 7 PACKING SECTION parts List Mark No. Description Part No. Mark No. Description Part No. Package, Pad 792WHA0604 > Cord Set AC See Contrast table (2) Polyethylene Bag See Contrast table (2) Cord, RCA Pin 06CPBA2006 Gift Sheet 791WHA0108 Remote Control VXX2914 Package See Contrast table (2)

  • Page 8: Exterior Section

    2.2 EXTERIOR SECTION NON-CONTACT SIDE CONTACT SIDE Refer to "2.3 05 DVD MECHA ASSY". PCB240 (POWER PCB ASS'Y) PCBDF0 (OPERATION 3 PCB ASS'Y) PCB280 (OPERATION 2 PCB ASS'Y) PCB130 101K (DVD PCB ASS'Y) 101E 101C 101N 101G 101D 101B 101H PCB270 (OPERATION PCB ASS'Y) 101L...
  • Page 9 EXTERIOR SECTION parts List Mark No. Description Part No. DVD MT PCB Assy A2G502A130 OPERATION PCB Assy A2G501A270 OPERATION 2 PCB Assy A2G501A280 > POWER PCB Assy A2G502A240 > DVD MECHA ASSY A2F101A650 Shield,21Pin 761WSA0237 PLATE, FIP 752WSA0466 Plate,Bottom 702WSA0243 >...

  • Page 10: Dvd Mecha Section

    2.3 05 DVD MECHA SECTION Cannot supply separately. If the repair is needed, replace the Lubricating Oil LOADER SUB ASS'Y. GYA1001 Daifree GEM1036 Lubricating Oil GYA1001 CD2001 PCB610 (LOADING MOTOR PCB ASS'Y) CD2302 Do not replace the parts. Because, minute adjustments are needed if this condition is disassembled further more.
  • Page 11 05 DVD MECHA SECTION parts List Mark No. Description Part No. Loading Motor PCB Assy A2F101A610 Gear,Middle 92P100117A > Loading Motor 1515S98004 Pulley,Motor 92P100097A > FEED Motor 1515S98004 Cord Jumper (24P)(CD2001) 122H0O2305 Cord Jumper (CD2302) 122H051602 Insulator (F) 92P200013A Belt,Loading 92P200015A Insulator (R) 92P200016A...

  • Page 12: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM DVD MT PCB ASSY IC4004 IC4005 IC4001 DVD MECHA 16Mbit Flash 64Mbit SDRAM EEPROM ASSY CP2301 ASPDIF ASDAT0 PICKUP IC4002 MPEG / MICON T– / RF-AMP F– IC2301 R/CR Motor Drive B/CB CVBS SW PCB ASSY...

  • Page 13: Power Pcb Assy

    J8004 DIGITAL OUT COAXIAL IC8004 IC8003 Audio DAC Audio LPF J8003 2 ch & AMP V-OUT L AUDIO OUT V-OUT R J8002 S_Y OUT S VIDEO OUT S_C OUT R/CR out J8001 G/Y out B/CB out VIDEO V out POWER PCB ASSY CVBS IC8002 Video Driver...

  • Page 14: Overall Wiring Connection Diagram

    3.2 OVERALL WIRING CONNECTION DIAGRAM DVD MECHA ASSY (A2F101A650) CP2301 FOCS RTN FOCS DRV TRKG RIN TRKG DRV GND(CD) VOL(DVD) LD_DVD(650) GND(DVD) PD/GND LD(DVD) LD_CD(780) GND(DVD) OPTICAL PICKUP VOL(CD) VR780(CD) MON(COM) VRCOM MON(DVD) VR650(DVD) VRF(RF_OUT) SW1(DVD/CD) DVD/CD(SW) VREF SW PCB ASSY (A2F101A640) CD2301 CP2303...
  • Page 15 ÷ When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". ÷ The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. ÷...

  • Page 16: Dvd Mt Pcb (1/5) Assy

    3.3 DVD MT PCB (1/5) ASSY DVD MT PCB ASSY (A2G502A130) MPEG/MICON/RF-AMP BLOCK C4047 390P CH X4001 V+3R F 00BT02701 C4104 27MHz R4024 C4033 R4025 750K 0. 001 B 100K FROM/TO LOADER/MOTOR DRV A{3} B{3} (RF) C{3} D{3} E{3} F { 3} MDI1 { 3} LDO1 { 3} LDO2 { 3}...
  • Page 17 FROM/TOVIDEO/AUDIO R4064 1 50 + - 1% VSEL1 {4} TP4060 R4065 1 50 + - 1% TP4066 LETTER {4} R4066 1 50 + - 1% TP4061 SQUEEZE {4} R4067 1 50 + - 1% TP4067 I/XP{4} R4068 1 50 + - 1% TP4062 (R/CR) R4069...

  • Page 18: Dvd Mt Pcb (2/5) Assy

    3.4 DVD MT PCB (2/5) ASSY DVD MT PCB ASSY (A2G502A130) MEMORY BLOCK FROM/TOMPEG/MICON/DSP DQ0 { 1} DQ1 { 1} DQ 2 { 1} DQ 3 { 1} DQ 4 { 1} DQ 5 { 1} DQ 6 { 1} DQ 7 { 1} DQ 8 { 1} DQ 9 { 1}...
  • Page 19 64Mbit SDRAM IC4005 K4S641632H-UC75 C 4088 16Mbit FLASH 0. 1B IC4004 S29AL016D DQ15 1. 2 1. 7 DQ15 3. 3 1. 0 VSSQ VCCQ BYTE# DQ14 0. 8 VQ14 DQ13 0. 7 1. 5 DQ13 D 15 1. 9 2. 5 VCCQ VSSQ DQ12...

  • Page 20: Dvd Mt Pcb (3/5) Assy

    3.5 DVD MT PCB (3/5) ASSY DVD MT PCB ASSY (A2G502A130) LOADER/MOTOR DRV BLOCK C2303 0 . 1B TP2301 DEICG V+5S CP2301 C2301 0 . 1 B 09-5000-024-001-001 JG001 TP2304 TP2305 JG002 TP2306 R2307 JG003 TP2307 JG004 TP2308 Q2307 100K 2SK3018T106 TP2309 SW1(DVD/CD)
  • Page 21 (RF) : RF SIGNAL ROUTE FROM/TO MPEG/MICON/RF-AMP (RF) RF {1} DEICG {1} V20 {1} A { 1} B { 1} RF33 JG010 C { 1} TP2332 D { 1} JG008 W819 V+3F E { 1} TP2341 F { 1} MDI1 {1} LDO2 {1} 3.

  • Page 22: Dvd Mt Pcb (4/5) Assy

    3.6 DVD MT PCB (4/5) ASSY DVD MT PCB ASSY (A2G502A130) AUDIO/VIDEO JACK BLOCK CD8001 CP8001 2H0C3001 IMSA-9604S-12C G/Y_OUT FROM/TO MPEG/MICON/DSP DAC_XCS0 {1} B/U_OUT LETTER {1} B/CB SQUEEZE {1} XAMUTE {1} R/V_OUT ACLK {1} R/CR (DA) ASPDIF {1} RGB-H SCK {1} SD {1} CP503 VSEL1 {1}...
  • Page 23 NOTE : THE DC VOLTAGE EACH PART WAS MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK. R8070 B8003 MMZ1608R102CT AUDIO DAC 2CH IC8004 PCM1742KEG/2K BCKIN MCLK DATA R8035 (DA) 2.2K LRCKIM JACK MUTE CTL Q8014 KTA1504S_Y_RTK C8068 C8036 0. 1 B ZERO L MUTE CTL R8065...

  • Page 24: Dvd Mt Pcb (5/5) Assy

    3.7 DVD MT PCB (5/5) ASSY DVD MT PCB ASSY (A2G502A130) POWER PORT BLOCK IC4006 SIP1117L-ADJ-TP REG+1.8V IC VOUT W853 R4037 R4039 68 + - 1% CP4003 A2001WV2-14P P.CON+12V AT+12V for MUTE P.CON+5V C4109 P.CON+6V 0. 1 B GND(M) P.CON+3.3V(AT) AT+3.3V STBY L GND(D)
  • Page 25 FROM/TO AUDIO/VIDEO V+3A {1,4} W847 V+5A (AUDIO DAC) V+5A {4} W848 V+5V (VIDEO/OPT/COAX) V+5V {4} (AUDIO MUTE) V+12AT V+12AT {4} B4002 V+12 (AUDIO AMP) V+12 {4} MMZ1608R102CT (MOTOR) V+6A D_GND {1,2,3,4} B4001 (OPU) V+5S MMZ1608R102CT FROM/TO LOADER/MOTOR DRV V+6A {3} V+5S {3} V+3F (F/E)

  • Page 26: Operation, Operation 2 And Operation 3 Pcb Assys

    3.8 OPERATION, OPERATION 2 and OPERATION 3 PCB ASSYS OPERATION PCB ASSY (A2G501A270) OPERATION PCB ASSY SW652 : DOWN SW653 : ENTER SW654 : RIGHT SW655 : RETURN SW656 : MENU SW657 : UP D652 1SS133 D655 1SS133 SW658 : TOPMENU D657 1SS133 SW659 : LEFT...
  • Page 27 V651 HNV-08SS44T CD TRACK REPEAT A FLDC- W805 FLDC+ D659 1SS133 -28V -6.0 -13.0 -12.6 -9.5 -13.0 -9.5 -19.0 -19.0 -15.6 -12.0 -6.0 -18.0 R651 -18.0 FP SCK R652 -18.0 B651 IC651 FP DI PT6315 MMZ1608R102CT -18.0 FP DO FIP DRIVER IC R654 -18.0 R662...

  • Page 28: Power Pcb (1/2) Assy

    3.9 POWER PCB (1/2) ASSY POWER PCB ASSY (A2G502A240) POWER BLOCK D 505 1N4005-EIC D502 1N4005-EIC D503 51MS016L 1N4005-EIC F501 T1.6A_L_250V D506 BLUE L501 1N4005-EIC SS11V-03550-CH BROWN FH501 FH502 EYF-52BCY EYF 52BCY AC230-240V_50Hz 1.6A 250V 81291294 T501 C514 500V 470PB PHOTO D513 R505...
  • Page 29 Q510 IC503 PQ070XF01SZH KTA1281_Y REG P.CON+12V SW 6V REG (DVD MOTOR) W817 D512 RGP15J Q509 Q511 R545 R546 KTC3875S_Y_RTK KTC3875S_Y_RTK 22K + - 1% 3. 3K +-1% D534 P.CON SW 1SS133 Q505 KRC102SRTK C501 0.01 F D532 R525 R519 Q515 2SD1207 11EQS04N 1/4W...

  • Page 30: Power Pcb (2/2) Assy

    3.10 POWER PCB (2/2) ASSY POWER PCB ASSY (A2G502A240) 21PIN/D/DIGTAL AUDIO BLOCK FROM/TOPOWER AT+3.3V {1} R8120 P.CON+12V{1} 1 1/4W P-H/I-L_RGB-H{1} ASP/FS{1} AMP_A_OUT_R {1} AMP_A_OUT_L {1} DAC_A[G]Y_VIDEO{1} DAC_C[B]U_VIDEO{1} DAC_B[R]V_VIDEO{1} 21PIN_CVBS_VIDEO{1} A_GND{1} Q8102 Q8101 21PIN CTL DRV R8105 21PIN CTL IN KTA1504S_Y_RTK KTC3875S_Y_RTK 1/4W R8101...
  • Page 31 : VIDEO SIGNAL ROUTE : VIDEO SIGNAL ROUTE (R ch) : VIDEO SIGNAL ROUTE (G ch) : VIDEO SIGNAL ROUTE (B ch) : AUDIO SIGNAL ROUTE (L ch) J8101 MRC-021V-07_A R 8114 21PIN_R 220 + - 1% R 8115 21PIN_L 220 + - 1% L8101 21PIN_CTL...

  • Page 32: Waveforms

    3.11 WAVEFORMS Note : The encircled numbers denote measuring point in the schematic diagram. Measurement condition : No. 1 to 2 and 9 to 14 : reference A1 (DVD), T2-chp 19, Color-bar No. 3 to 8 : reference A1 (DVD), T2-chp 1 DVD MT PCB ASSY Foot of C626 [RF](IC4002 - pin 6) Foot of R8070 (IC8004 - pin 16)
  • Page 33 DVD MT PCB ASSY Foot of R4026(IC2301 - pin 1) [TROPEN] Foot of R4002(IC2301 - pin 2 [TRCLOSE] [Tray is Open] [Tray is closing] V: 1V/div. H: 5µsec/div. V: 1V/div. H: 5µsec/div. Foot of R618 (IC4002 - pin 37) [DMSO] [DMSO_OPEN] [DMSO_PLAY] [DMS~3]...
  • Page 34 DV-2850-S...

  • Page 35: Pcb Connection Diagram

    4. PCB CONNECTION DIAGRAM 4.1 LOADING and SW PCB ASSYS 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.

  • Page 36: Dvd Mt Pcb Assy

    4.2 DVD MT PCB ASSY SIDE A CD2301 PICKUP DVD MT PCB ASSY CP2303 CP2301 IC2301 Q2302 Q2307 Q2306 Q2303 IC4004 Q2303 Q2301 Q2304 Q2305 IC4005 IC4002 DV-2850-S...
  • Page 37 SIDE A CP502 CP503 CP4003 CP8001 6 Q2303 IC4006 Q8010 Q8016 Q8013 Q2301 IC8004 IC8003 Q8014 Q8018-Q8021 C4002 IC8001 Q8005 IC8002 DV-2850-S...
  • Page 38 SIDE B CP8001 CP4003 DV-2850-S...
  • Page 39 SIDE B DVD MT PCB ASSY CP2301 CP2303 DV-2850-S...

  • Page 40: Operation, Operation 2 And Operation 3 Pcb Assys

    4.3 OPERATION, OPERATION 2 and OPERATION 3 PCB ASSYS SIDE A OPERATION 3 PCB ASSY DEE0 CP603 POWER SW667 CP603 CP602 OPERATION PCB ASSY CP601 DOWN SW652 SW661 RETURN SW655 HOMEMENU SW653 SW654 SW659 TOPMENU SW657 MENU SW656 SW658 CP601 CP400 OPERATION 2 PCB ASSY SW662...
  • Page 41 SIDE A NTSC C674 OS651 DEE039A R666 CP604 CP604 CP605 DEE028A CP601 CP602 D651 D652 D654 W805 D655 D656 D657 D658 D659 V651 CP601 CP602 CP4002 CP603 SW660 SW665 SW663 NTSC STOP PAUSE B C G DV-2850-S...
  • Page 42 SIDE B OPERATION 3 PCB ASSY CP604 OPERATION PCB ASSY CP602 OPERATION 2 PCB ASSY B C G DV-2850-S...
  • Page 43 SIDE B CP603 IC651 CP601 CP605 B C G DV-2850-S...

  • Page 44: Power Pcb Assy

    4.4 POWER PCB ASSY SIDE A AC IN POWER PCB ASSY J501 J8101 R8103 R8105 W032 W031 W030 D534 W024 L501 L505 W018 R503 W013 D535 W008 W007 D519 IC502 W011 D515 B501 W003 C513 D523 D520 D513 W006 C515_1 R530 W005 R512_1...
  • Page 45 SIDE B POWER PCB ASSY DV-2850-S...

  • Page 46: Pcb Parts List

    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. Therefore, when replacing, be sure to use parts of identical designation. When ordering resistors, first convert resistance values into code form as shown in the following examples.
  • Page 47 Mark No. Description Part No. Mark No. Description Part No. C4034 CC 22 PF 50V CH CS0PCH4H1J C8001 CC 0.1 UF 25V B CS0PB0315K C4035 CC 0.1 UF 25V B CS0PB0315K C8002 CC 1 UF 10V B CS0PB0N16K C4039 CC 1 UF 10V B CS0PB0N16K C8003 CC 1 UF 10V B CS0PB0N16K...
  • Page 48 Mark No. Description Part No. Mark No. Description Part No. R2323 RC 4.7 OHM 1/16W R803R94R7J R4084 RC 1K OHM 1/16W R803R9102J R2325 RC 15K OHM 1/16W R803R9153F R4087 RC 10K OHM 1/16W R803R9103J R2326 RC 4.7K OHM 1/16W R803R9472J R8014 RC 3.9K OHM 1/16W R803R9392J R2327 RC 4.7K OHM 1/16W...
  • Page 49 Mark No. Description Part No. Mark No. Description Part No. SW659 SWITCH TACT 0504R01T38 W13832 RC 0 OHM 1/16W R803R9000J SW661 SWITCH TACT 0504R01T38 W13833 RC 0 OHM 1/16W R803R9000J SW666 SWITCH TACT 0504R01T38 W13834 RC 0 OHM 1/16W R803R9000J W13847 RC 0 OHM 1/16W R803R9000J CAPACITORS...
  • Page 50 Mark No. Description Part No. Mark No. Description Part No. C506 CE 2.2 UF 50V E50HU52R2M IC503 IC PQ070XF01SZH I0GA9XF010 IC504 PS2561AL1-1-V(W) 000220002W C507 CC 0.01 UF 50V F CS0PF0414Z Q501 KTC3875S_Y_RTK TCAA3875SY C508 CC 680 PF 50V CH CS0PCH4U2J C509 CE 10 UF 50V E02LU5100M Q502 KTC3209_Y_AT...
  • Page 51 Mark No. Description Part No. Mark No. Description Part No. R528 RC 22K OHM 1/4W R002T4223J W24024 JUMPER IN PCB 1230T10001 R529 R,METAL OXIDE 220 OHM 1W R3X181221J W24025 JUMPER IN PCB 1230T07501 R530 RC 560 OHM 1/4W R002T4561J W24026 JUMPER IN PCB 1230T05001 W24027 JUMPER IN PCB 1230T05001...

  • Page 52: Adjustment

    6. ADJUSTMENT 6.1 WHEN REPLACING DVD DECK WHEN REPLACING DVD DECK [ Removing the DVD Deck ] Before removing Pick Up PCB and DVD PCB connector, short circuit the position shown in Fig. 1 using a soldering iron. If you remove the DVD Deck with no soldering, the Laser may be damaged. [ Installing the DVD Deck ] Remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector.

  • Page 53: Test Mode

    6.2 TEST MODE POWER ON POWER DVD test disc Test mode remote control (GGV1025) unit (GGF1381) DISC SET <TRAY OPEN> <TRAY CLOSE> OPEN/CLOSE OPEN/CLOSE DVD disc (Player) (Player) TEST MODE: PLAY CHECK An address is displayed <PLAY> DVD, CD TEST Press the play key ) of the normal remote control unit.

  • Page 54: Disc Removal Method

    6.3 DISC REMOVAL METHOD DISC REMOVAL METHOD AT NO POWER SUPPLY Remove the Top Cabinet and Front Cabinet. (Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.) Rotate the Main Gear in the direction of the arrow by hand. (Refer to Fig. 1) Draw the Tray.

  • Page 55: General Information

    7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 TEST MODE IN Test Mode Functional Specification 1 Test mode entry In the power ON state, press the [ESC] (A8-5F) key and [TEST / RANDOM] (A8-5E) key in order of the Test mode remote control unit.

  • Page 56: Display Specification Of The Test Mode

    7.1.2 DISPLAY SPECIFICATION OF THE TEST MODE Character in bold : Item name : Information display 0 Disc sensing [DSC – ∗ ∗ ∗] 1 Address indication The address being traced is displayed in number. The type of discs loaded is displayed. (as for the DVD, indication of decimal number is possible.) [DVD], [CD ], [VCD], [ DVD : ID indication (hexadecimal number, 8 digits)

  • Page 57: Functional Specification Of The Shortcut Key

    7.1.3 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY Only during normal playback, the following shortcut keys can be assigned by pressing a required key after pressing the ESC key of the remote control unit. To quit, press the ESC key Remote Control Remote Command Contents Conditions...

  • Page 58: Specification Of Model Information Display

    7.1.4 SPECIFICATION OF MODEL INFORMATION DISPLAY To display model information : Press the ESC key then the CHAP key. To close the model information display : Press the ESC key. • Display contents AREA : WY REGION : 2 ROM NUMBER YAD5215B Don't care.

  • Page 59: Functional Specification Of The Service Mode

    7.1.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE • Display during Service Mode To enter Service Mode, press the CHP/TIM key while holding the ESC key pressed. To quit, press the ESC key. Service mode display 1 ID Address 2 Error rate (always displayed), in exponential notation ERROR RATE : ∗...

  • Page 60: Method For Diagnosing Degradation Of The Lds On The Pickup Assy

    7.1.6 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY Case when this diagnosis is required : When playback of any disc, including a test disc (DVD: GGV1025, CD: STD-905), cannot be performed How to diagnose In the case mentioned above, degradation of the laser diodes (LDs) mounted on the PICKUP Assy is suspected. Measure the voltage between the two ends of one of the resistors mentioned below.

  • Page 61: Trouble Shooting

    7.1.7 TROUBLE SHOOTING Symptoms Diagnosis Contents Possible Defective Points The power is not turned on. Check the voltage of AT+3.3V, –28V and FLDC on the POWER POWER PCB ASSY SUPPLY Unit. Are wires of output connector (POWER PCB ASSY) and CP4003 Connector / cable (DVDM Assy) disconnected or damaged ? OPERATION 2 Assy...
  • Page 62 Symptoms Diagnosis Contents Possible Defective Points Does the voltage of CP2302-pin 3 and pin 1 on the DVD MT Assy A tray cannot be opened. Tray SW change normally ? (An opening screen is Pin 5 (SW2(TRIN)): Tray is fully closed: "L" displayed on the monitor) Pin 3 (SW1(TROUT)): Tray is fully opened: "L"...

  • Page 63: Disassembly

    7.2 DISASSEMBLY REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS 1-3: DVD DECK (Refer to Fig. 1-3) Short circuit the position shown in Fig. 1-3 using a soldering iron. If you remove the DVD Deck with no 1-1: TOP CABINET/FRONT CABINET/OPERATION soldering, the Laser may be damaged.

  • Page 64: Removal Of Dvd Deck Parts

    REMOVAL OF DVD DECK PARTS NOTE In case of the Traverse Ass'y, install it from (1) to (4) in NOTE order. (Refer to Fig. 2-2-B) 1. Do not disassemble the DVD DECK PARTS except In case of the Traverse Ass'y installation, hook the wire listed parts here.
  • Page 65 NOTE 2-4: RACK LOADING/MAIN GEAR/PULLEY GEAR (Refer to Fig. 2-4-A) In case of the Pulley Motor installation, check if the value Unlock the support 1 and remove the Gear Pulley. of the Fig. 2-3-B is correct. When installing the wire of the Loading Motor PCB Ass'y, Remove the Gear Main.
  • Page 66 NOTE 1. In case of the Clamper Ass'y installation, install Feed Motor correctly as Fig. 2-5-B. Gear Motor Plate Clamper Check Lock Clamper Traverse Ass'y Gear Feed Fig. 2-5-B 2-6: HOLDER TRAVERSE/INSULATOR (F)/INSULATOR (R) (Refer to Fig. 2-6-A) Rack Feed Ass'y Gear Middle Remove the Holder Traverse.
  • Page 67 Switch PCB Ass'y ~ FEED MOTOR ~ WHITE (4) BROWN (3) • Install wire from(1) to (4) in order. ~ SPINDLE MOTOR ~ YELLOW (2) GREEN (1) Fig. 2-7-D Check Hook Traverse Ass'y Check Hook Check Hook Check Hook • Loosen the wirein the direction of the arrows. Fig.

  • Page 68: Ic Information

    7.3 IC INFORMATION • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. List of IC MT1389FE, LA6565, PT6315 MT1389FE (DVD MT ASSY: IC4002) • MPEG / MICON / RF-AMP Pin Arrangement (Top view) AGND DVDA...
  • Page 69 • MPEG / MICON / RF-AMP Microcomputer Block Diagram Debug CVBS, Y/C 108Mhz Port Component TV Encoder Module Videop RF Amplifier Video DAC Servo IO Servo Motor Processor Video Drive Processor interlacer Spindle Control FLASH MPEG-1/2 Audio JPEG Memory Video Decoder Controller DRAM System...
  • Page 70 MT1389FE/C2-L (DVD MT ASSY : IC4002) • MPEG/MICON/RF-AMP CPU Pin Function Pin Name Pin Function Pin Name Pin Function Serial interface port 3 data-out AGND – Analog ground Version AD input port 4 DVDA AC coupled input path A GPIO Serial interface port 3 data-in DVDB AC coupled input path B...
  • Page 71 Pin Name Pin Function Pin Name Pin Function 91 AD7 Microcontroller address/data 7 137 DQM1 Data mask 1 92 A17 Flash address 17 138 RWE# DRAM Write enable, active low 93 IOA0 Microcontroller address 0/IO 139 CAS# DRAM column address strobe, active low 94 DVSS –...
  • Page 72 Pin Name Pin Function Pin Name Pin Function 189 DACVDDC – 3.3V power pin for VIDEO DAC circuitry Audio left/right channel clock 213 ALRCK Trap value in power-on reset: 190 VREF – Bandgap reference voltage 1:use external 373 191 FS –...
  • Page 73 Pin Name Pin Function Pin Name Pin Function 239 ADCVDD3 – Analog 3.3V Power for ADC 249 RFGND – Analog Power 240 NC – – – – 250 NC 241 ADCVSS – Analog ground for ADC 251 NC – – –...
  • Page 74 LA6565 (DVD MT : IC2301) • MOTOR DRIIVE Internal Block Diagram Signal system ground SGND Thermal shutdown circuit (Load output voltage setting) VCONT MUTE VCCP2 MUTE1 Turns the corresponding channal on/off. High : output on, Low : output off VLO– CH2,3,4 MUTE234 44kΩ...

  • Page 75: Pin Functions

    Pin Functions Pin No. Pin Name Pin Descriptions Loading output direction switching (FWD). Loading system logic input. Loading output direction switching (REV). Loading system logic input. V CC 2 Channels 3, 4, and loading power stage power supply VLO – Loading output (–) VLO + Loading output (+)
  • Page 76 PT6315 (OPERATION 1 ASSY : IC651) • FIP DRIIVE IC Block Diagram SG1/KS1 SG2/KS2 SG3/KS3 SG4/KS4 Control SG5/KS5 SG6/KS6 DOUT Serial SG7/KS7 Data SG8/KS8 Interlace Segment Display Memory SG9/KS9 Driver/ (24bits x 12 Words) SG10/KS10 Grid SG11/KS11 Driver/ SG12/KS12 Key Scan Output SG13/KS13 Tlming Generator...
  • Page 77 Pin Description Pin Name Description Pin No. LED1 to LED4 LED Output Pin 1 to 4 Oscillator Input Pin A resistor is connected to this pin to determine the oscillation frequency Data Output Pin (N-Channel, Open-Drain) This pin outputs serial data at the falling DOUT edge of the shift clock (starting from the lower bit).

  • Page 78: Disc / Content Format Playback Compatibility

    7.4 DISC / CONTENT FORMAT PLAYBACK COMPATIBILITY File structure (may differ): Up to 299 folders on a disc; up to 648 folders and files (combined) within each folder. DV-2850-S...
  • Page 79 DV-2850-S...

  • Page 80: Panel Facilities

    8. PANEL FACILITIES 8.1 FRONT PANEL SECTION Front panel OPEN/CLOSE TOP MENU MENU STANDBY/ON HOME MENU RETURN 11 10 DV-2850 STANDBY/ON 9 Display Description of the display. Press to switch the player on or into standby. Disc tray OPEN/CLOSE Press to open or close the disc tray. 3 TOP MENU Press to display the top menu of a DVD disc.

  • Page 81: Display

    8.2 DISPLAY Display 8 and 3 REMAIN Indicates whether a disc is playing or paused. Indicates that the character display is showing the disc or title/chapter/track remain time. Indicates that the character display is showing a DVD chapter number. Character display TITLE Indicates that the character display is showing a DVD title number.

  • Page 82: Remote Control

    8.3 REMOTE CONTROL Remote control Press to switch the player on or into standby. AUDIO Press to select the audio channel or language. SUBTITLE Press to select a subtitle display. Number buttons TOP MENU Press to display the top menu of a DVD disc. ENTER &...
  • Page 83 Remote control 2 13 SURROUND 19 RETURN Press to activate/switch off V/SRS TruSurround. Press to return to a previous menu screen. Use for forward slow motion playback, frame Press to open or close the disc tray. advance and forward scanning. 15 ANGLE Press to change the camera angle during Press to jump to the next chapter or track.

  • Page 84: Jigs List

    7 Jigs list Remote control Name Jig No. Remarks Service Remote Control Unit GGF1381 diagnosis DVD Test Disc (DVD-Video) GGV1025 Check of DVD-Video Press to switch the player on or into standby. CD Test Disc STD-905 Check of CD AUDIO Press to select the audio channel or language.

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