Philips DVP2851/55 Service Manual
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Philips DVP2851/55 Service Manual

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DVD Player

Service
Service Manual
Specification............................................................................1-2
Safety Instruction,Warning & Notes........................................1-3
Mechanical and Dismantling Instruction..................................2-1
Software Upgrades..................................................................3-1
Trouble Shooting ....................................................................4-1
Wiring Diagram........................................................................5-1
Electrical Diagram and Print-layout.........................................6-1
Mechanical Exploded View.....................................................7-1
Revision List............................................................................8-1
©
Copyright 2011 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No part of this publication may be reproduced, stored in aretrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of Philips.
Published by Arya - 1252 BU AVM Printed in The Netherlands Subject to modification
Version 1.0

TABLE OF CONTENTS

DVP2851/55
Page
CLASS 1
LASER PRODUCT
GB
3141 785 39350
PHILIPS

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Summary of Contents for Philips DVP2851/55

  • Page 1: Table Of Contents

    Mechanical Exploded View.............7-1 Revision List................8-1 © Copyright 2011 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in aretrieval system or CLASS 1 transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise LASER PRODUCT without the prior permission of Philips.

  • Page 2: Specification

    Specifications WMA: 44.1 kHz, 48 kHz Constant bit rate: MP3: 8 kbps - 320 kbps WMA: 32 kbps - 192 kbps Note Main unit Dimensions (W x H x D): 270 x 37.5 x 209 (mm) Net Weight: 1.0 kg Region code Power This player can play discs with the following...

  • Page 3: Safety Instruction,Warning & Notes

    Safety instruction, Warning & Notes Safety instruction 1. General safety 2.Laser safety Safety regulations require that during a repair: This unit employs a laser. Only qualified service personnel . Connect the unit to the mains via an isolation transformer. may remove the cover, or attempt to service this device .
  • Page 4 Warning 1.General 2. Laser . All ICs and many other semiconductors are susceptible to . The use of optical instruments with this product, will electrostatic discharges (ESD). Careless handing during increase eye hazard. repair can reduce life drastically. Make sure that, during .
  • Page 5 Solder Joint...
  • Page 6 - lead free BGA-ICs will be delivered in so-called respected by the workshop during a repair: ‘dry-packaging’ (sealed pack including a silica gel Use only lead-free solder alloy Philips SAC305 with pack) to protect the IC against moisture. After order code 0622 149 00106. If lead-free solder-paste is...
  • Page 7 1.0 SAFTETY INSTRUCTIONS WAARSCHUWING WARNING Alle IC’s en vele andere halfgeleiders zijn All ICs and many other semi-conductors are gevoelig voor electrostatische ontladingen susceptible to electrostatic discharges (ESD). (ESD). Careless handling during repair can reduce life Onzorgvuldig behandelen tijdens reparatie kan drastically.

  • Page 8: Preparation Of Servicing

    1.1 ESD PROTECTION When the power supply is being turned on, you may not remove this laser cautions label. If it removes, radiation of laser may be received.1 PREPARATION OF SERVICING Pickup Head consists of a laser diode that is very susceptible to external static electrocity. Although it operates properly after replacement, if it was subject to electrostatic discharge during replacement, its life might be shortened.
  • Page 9 SAFTY NOTICE SAFTY PRECAUTIONS LEAKAGE CURRENT CHECK Plug the AC line cord directly into a 120V AC outlet (do Measure the AC voltage across the 1500 resistor. not use an isolation transformer for this check). Use an The test must be conducted with the AC switch on and AC voltmeter, having 5000 per volt or more sensitivity.
  • Page 10 1-10 PCB BOARD LOCATION: MAIN BOARD LOADER POWER &FRONT CONTROL BOARD VERSION VARIATIONS Type / Versions DVP2851 Service Policy Board in used MAIN BOARD POWER & FRONT BOARD LOADER C -- Component Lever Repair Tips： ＊ M -- Module Lever Repair X -- Used...

  • Page 11: Mechanical And Dismantling Instruction

    Mechanical and Dismantling Instructions Dismantling Instruction Detailed information please refer to the model set. The following guidelines show how to dismantle the player. Step1: Remove 5 screws around the Top Cover, and then remove the Top Cover (Figure 1). Figure 1 Step2: If it is necessary to dismantle Loader or Front Panel, the Front door should be removed first.

  • Page 12: Mechanical And Dismantling Instructions

    Mechanical and Dismantling Instructions Detailed information please refer to the model set. Dismantling Instruction Step3: If the tray can’t open in normal way, you can make it through the instruction as below (Figure 3). Note: Make sure to operate gently otherwise the guider would be damaged. Figure 3 Step4: Dismantling Front Panel, need release 2 snaps of Front Panel &...
  • Page 13 Mechanical and Dismantling Instructions Dismantling Instruction Detailed information please refer to the model set. Step5: Dismantling Loader, disconnect the 3 connectors (XP5, XP8, XP9) aiming in the below figure, and remove 1 screw that connects the loader and the bottom cabinet. (Figure 5) Step6: Dismantling Power &...

  • Page 14: Software Upgrades

    Software upgrade Preparation to upgrade software 1) Start the CD Burning software and create a new CD project (Data Disc) with the following setting: B. Read out the software versions to confirm upgrading Label: DVP2XXX (No need the label name) File Name: DVPXXXX_XX.BIN 1) Power on the set and press <Setup>...

  • Page 15: Trouble Shooting

    Trouble shooting chart Spindle motor does not move Motor no move Check connection Correct connection between 24PIN and the loader. Check whether “M5V” Check the M5V power supply (+5V) voltage is normal. 1.Whether the R12 is eroded or badly soldered. Check/Replace the loader,or the bad part.
  • Page 16 Trouble shooting chart The power can not be on or off The power can’t be on or off Check the power supply Repair the power board on the power board is normal. Check if the XS2 on Check/Correct the front board to connection XP1on the decoder board is in good...
  • Page 17 Trouble shooting chart All output voltages on the power board is 0V or deviated. All output voltages on the power board is 0V or deviated Check whether Replace F501 F501 is blown Replace C501&C502 if D501, D502, Check whetherthere is D503, D504 are normal.
  • Page 18 Trouble shooting chart Disc cannot be read . Disc cannot be read. Check the FFC connection Check the loaded circuit between 24P and the loader. Check whether the current of Replace the Loader R12 is Less than 60mA for DVD and 65mA for CD. Check whether the components between ,and...
  • Page 19 Trouble shooting chart Only DVD discor only disc except DVD can be played Only DVD disc, or only disc except DVD can be Played. Check Check the loaded circuit connection between 24pin and the loader. Check whether the current of R12 is Less than 60mA Replace loader for DVD and 65mA Check whether thecomponents...
  • Page 20 Trouble shooting chart No display on LED, and buttons do not work No display on LED, and buttons do not work Check whether there is correct contact Correct connection between XS2 and XP1 Check VCC(M5V) Fix power supply board top voltage on the power a power supply for should and front board...
  • Page 21 Trouble shooting chart Distorted audio and loud noise Distorted audio and loud noise Checkthe power supply voltages Check Q753 operation amplifying Q753 is normal. Check whether the muting Replace R133 resistance R133 is normal Check whether the muting resistance R132 is normal Replace R132 Checking...
  • Page 22 Trouble shooting chart Abnormal color of video picture Abnormal color of video picture Check whether the 27MHz Check X3, R79,R6 ,C26 and C27 output signal normal. Check whether the 3.3V Check other of power supply electric and 1.2V power supply circuit voltages on the decoder board are normal.
  • Page 23 Trouble shooting chart Remote reception is insensitive or fails. Remote reception is insensitive or fails. Check if the remote Check battery control works properly. Check power Check R96、C93 supply voltage to the remote censor is normal Use an oscilloscope to check if there is output waveform from the first pin IR REM1(PIN1 - RCwaveform) remote...
  • Page 24 Trouble shooting chart 4-10 No video picture, no sound. No video picture, no sound. Check the cable if that is Replace the cable used to connect TV and DVD Player, is normal Check whether voltages from the power Check the power board board to the decoder board are normal.
  • Page 25 Wiring and Block Diagram for DVP2851: 1389W 2CH+CVBS COAX CVBS AUDIO/VIDEO AMP&LPF 1389W HOMESW FLASH (1606) OUTSW 2PIN*2.0 4PIN*2.0 14PIN*2.0 MAIN BOARD XS301 POWER 14PIN*2.0 SUPPLY USB+LED Light Front panel...
  • Page 26 Power & Front Control Board Circuit Diagram for DVP2851/55:Power Supply * CAUTION : THE PARTS MARKED WITH ARE IMPORTANT PARTS ON THE SAFETY. PLEASE USE THE PARTS HAVING THE DESIGNATED PARTS NUMBER WITHOUT FAIL. L501 L501 680uH/300mA 680uH/300mA F501 F501...
  • Page 27 Power & Front Control Board Circuit Diagram for DVP2851/55:Front&USB&KOK Board R329 R329 R326 R326 R314 R314 4.7K 4.7K 4.7k 4.7k GND_POWER Power_KO POWER POWER C309 C309 C310 C310 PLAYER/PAUSE PLAYER/PAUSE 0.1u 0.1u 0.1u 0.1u 14PIN/2.0mm 14PIN/2.0mm OPEN/CLOSE OPEN/CLOSE Power_KO USB5V...
  • Page 28 Main Board Circuit Diagram for DVP2851/55:Power TP17 TP17 R757 R757 TO POWER BOARD R761 R761 Inor=150mA 1.8/2W 1.8/2W Imax=800mA Istandby:8mA R762 R762 Q753 Q753 PNP_3CA8550D PNP_3CA8550D 10/1W 10/1W C753 C753 0.1uF/16V/Y5V 0.1uF/16V/Y5V ADJ_12 TP13 TP13 R753 R753 Q762 Q762 DV12...
  • Page 29 Main Board Circuit Diagram for DVP2851/55:1389W LQFP 108&FLASH&OPU OFF-PAGE CONNECTION SERVO RF DeCAP. Crystal TP20 TP20 DV33 100K 100K DV12 CVBS_OUT DV33 ADACVDD CVBS_OUT RFV12-1 RFVDD3 DACVDD3 DACVDD3 XI XI XI XI 33pF/50V/NP0 33pF/50V/NP0 27MHz/30PPM 27MHz/30PPM 33pF/50V/NP0 33pF/50V/NP0 0.1uF/25V/Y5V 0.1uF/25V/Y5V 0.1uF/25V/Y5V...
  • Page 30 Main Board Circuit Diagram for DVP2851/55:AUDIO I/F RCA/4h RCA/4h RCA2-6-3 RCA2-6-3 R113 R113 CVBS_O COAXIAL COAXIAL CVBS_O 100pf 100pf R126 R126 100k 100k C102 C102 U927 U927 TP10 TP10 1000pF/50V/X7R 1000pF/50V/X7R P441 P441 CE364 CE364 10uF/16V 10uF/16V R109 R109 5.1k 5.1k...
  • Page 31 Main Board Circuit Diagram for DVP2851/55:VIDEO I/F V_CVBS 01UVIDEOO-101 CVBS_OUT V_G/Y V_B/U V_R/V CVBS_O CVBS_O P442 P442 VIDEO I/F V_R/V R/V_O 0/1.8uH/25mA 0/1.8uH/25mA COAXIAL R881 R881 R/V_O B/U_O 75/1% 75/1% G/Y_O COAXIAL COAXIAL CVBS_O RCA/7h RCA/7h AUDIO I/F RCA/VIDEO OUT...
  • Page 32 Main Board Circuit Diagram for DVP2851/55:USB I/F TP14 TP14 TP15 TP15 AKIN1 R477 R477 1uF/16V/Y5V 1uF/16V/Y5V 3300pF/50V/X7R 3300pF/50V/X7R C479 C479 USB_DMO USB_DMO USB_DPO USB_DPO F221 F221 VCC_USB Q221 Q221 PNP_PBSS5320T PNP_PBSS5320T PTC/1.5A/6V PTC/1.5A/6V USB_DP USB_DP C221 C221 USB_DM USB_DM R221...
  • Page 33 Power & Front Control Board print-layout(bottom side) for DVP2851/55:...
  • Page 34 Main Board print-layout(bottom side) for DVP2851/55:...
  • Page 35 6-10 6-10 Main Board print-layout(top side) for DVP2851/55:...
  • Page 36 Exploded View for DVP2851:...

  • Page 37: Revision List

    8 - 1 Revision List Version 1.0 Initial Release for DVP2851/55:...

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