Philips DCP-851 Service Manual
DVD Portable Player DCP851
All version
Service Manual
©Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No part of this publication may by reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronics,
mechanical, photocopying, or otherwise without the prior permission of Philips
TABLE OF CONTENTS
Chapter
Technical Specification & Service Tips…………..……….. 1
Safety Instructions…………………………………………….. 2
Instruction for Use……………………………………………… 3
Mechanical Instructions………………………………………. 4
Troubleshooting …………………………………………………5
Overall Block Diagram…………………………………………. 6
Electrical Diagram……………………………………………… 7
Service Part List………………………………...………………. 8
Revision List……………………………………………………. 9
3141 785 32601
Version 1.1
1.0 TECHNICAL SPECIFICATION
General
Dimensions (W x H x D): 210 x 39 x 178 mm
Bear Unit Weight: 1.1 kg +/- 5%
Power supply:
Supply voltage Input: 100~240V + / - 10%
Supply Power
consumption (AC adaptor
100/240VAC)
Operating Temperature -10 ~ 50degC
Video System NTSC
Frequency response 20-20kHz +/-1dB
THD 20-20kHz (%): </=3%
Dynamic range 1kHz >/=80dB
Signal/Noise ratio: >/=80dB
Channel Separation 1kHz >=60dB
Channel Balance 1kHz <3dB
Current consumption
Playback time
Capacity--- Refer to battery
spec
Battery discharge cut-off
current
Max.battery charge
current(continue charge) of
DCP850 & DCP750
Charging time 5 +/- 0.5H
Headphone out (headphone output load 2x16 ohm)
Maximum output power:
Frequency response:
SNR (A-wght):
THD (0.2-20kHz):
Left-Right Channel
Separation:
Left-Right Channel
Balance:
Supported disc type
Video Playback
Formats:
Audio Playback
Formats:
50/60Hz 0.3A
Output: DC 9V 1A
9W + 10%
2400mAH
40mA
450mA
1.5mW
+/-3dB
>65dB
3%
>/=50dB
</=1dB
Playback disc type: DVD, Picture-CD,
Video Playback Format: DVD / VCD / SVCD / CD
Audio Playback Format: CD/MP3, MP3-DVD,
Card slot: SD / MMC (memory up
Disc Diameter 12cm
Pixel specification
Max. 0 bright-dot & max. 3 dark-dots
Factory Service Mode (FSM)
SVCD, Video CD, MP3CD, CD-R/CD-RW,
WMA-CD, DVD-R, DVDRW, DVD+R, DVD+RW
/ JPEG / Divx
DVD, Divx
to 1GB)
To check the software version and change
region code of your DVD Portable
1. Power ON the DVD player and open the DVD
door
2. Press the “SETUP” button on remote control,
then select the “Preference MENU”
3. Press the remote button in the sequence as
9 -> 6 -> 5 -> 3
4. The LCD display showed the existing region
code. Press (navigation up) or
(navigation down) repeatedly to select the
number from 0 to 6.
5.
Refer below table for your region code setting
Select “0” setting = Region Free (confidential)
1.0 TECHNICAL SPECIFICATION
Procedure on how to upgrade the software of
the DVD Portable
For the best performance of your DVD Portable.
Check www.philips.com/support for latest
software upgrades available.
A) By CD-ROM
1. Download the “PHILIPS.BIN” file from the Philips
support site
2. Unzip the file and then burn it into a CD-ROM to
make a disc for upgrade
3. CD-ROM disc name must be “PHILIPS”
(otherwise it will not be recognized as a disc for
upgrade)
4. Power on the Portable DVD Player with AC/DC
adaptor
5. Play CD-ROM for firmware upgrade
Warning: Do not unplug the AC adaptor during
firmware upgrade to prevent flash corrupt of the
set!!
6. Once upgrade is completed, the player will restart
automatically and observed PHILIPS LOGO on the
screen.
7. Open the DVD door to remove the disc
B) By SD Card
1. Download the “PHILIPS.BIN” file from the Philips
support site
2. Unzip the file and then copy and paste it into a
blank SD card
3. Power on the Portable DVD Player with AC/DC
adaptor
4. Read the SD card via SD Card slot for firmware
upgrade
Warning: Do not unplug the AC adaptor during
firmware upgrade to prevent flash corrupt of the
set!!
5. Once upgrade is completed, the player will restart
automatically and observed PHILIPS LOGO on the
screen.
1.0 TECHNICAL SPECIFICATION
Service Policy on PCBA of DCP851
Type /05 /12 /37 /98
Main PCBA MLR MLR MLR MLR
TFT PCBA MLR MLR MLR MLR
KEY PCBA MLR MLR MLR MLR
BATTERY PCBA MLR MLR MLR MLR
IPOD PCBA MLR MLR MLR MLR
MLR = module swap
3.0 INSTRUCTION FOR USE
3.0 INSTRUCTION FOR USE
4.0 MECHANICAL INSTRUCTION
Disassembly Procedure
1. Remove 7pcs of screws on the side of bottom
cabinet.
2. Open the bottom cabinet. Carefully unplug the
housing which is connected with main board
and TFT board.
3. Open the bottom cabinet.
First, unplug all the housing which are connected
the main board with battery board, key board and
IPOD board. (include 2pcs housing and the FFC
for the DVD louder)
Second, unplug all the housing which are
connected with main board and TFT board (then
you can separate TFT board and main board)
Remove all the screws on the main board (4pcs),
take out the main board from bottom cabinet.
4.0 MECHANICAL INSTRUCTION
4. Unplug the FFC and remove 3pcs screws from
DVD louder, then you can take out the DVD
louder.
5. From this location (between the buttons and
battery) you can take out the key board easily.
6. Remove 2pcs of screws on the battery board.
You can’t take out the battery together with the
battery board yet. Due to the battery was fixed
by the IPOD plastic docking cover and the
press IPOD-lock metal piece.
If you want to take out the battery, you must
remove the IPOD plastic docking cover and the
press IPOD-lock metal piece first.
Remove 4pcs screws from the cover (shown the
left photo), after that remove these 2pcs screws
(as shown the above photo).
Note: the battery was fixed by 2pcs two side
adhesive tape!
4.0 MECHANICAL INSTRUCTION
After done above, you can take out the IPOD
plastic docking cover and IPOD docking.
7. Unplug all the housing which are connected
with main board and TFT board (don’t forget to
unplug the Panel FFC from TFT board behind
the black
flannel)
.
8. Remove 6pcs screws on the TFT board, de-
soldering the wire connected between panel and
TFT board (don’t forget to
de-soldering the black
ground wire). Then take out the TFT board
from display frame.
Remove 4pcs screws which are to fix the panel on
the display frame to take out the panel from
display frame.
To take out the IPOD board.
Remove 2pcs black screws from the bottom of
IPOD
docking(as the photo shown)
4.0 MECHANICAL INSTRUCTION
5.0 TROUBLESHOOTING
SYMPTOM: BATTERY NO POWER
BATTERY CAN＇T
Power ON
Start
Check Battery capacity?
Yes
Check the Power-ON
button and cable OK?
NO
Replace Button or
Cable
Yes
no
Check charging
function OK?
No
Replace Main Board
Yes
No
Check adaptor
power-ON OK?
yes
SET OK?
No Defect, return
set to Customer
5.0 TROUBLESHOOTING
SYMPTOM: NO IMAGE / NO SOUND
SYMPTOM: NO IMAGE OUTPUT ( THE PANEL SHOW BLUE PICTURE)
Start
NOTE: AV Cable TYPE from outside to
Inside L-Audio, R-Audio, Video, Ground
SYMPTOM: NO SOUND COMES FROM SPEAKER
yes
Check the external AV
Cable TYPE
connection is OK?
Replace Main Board
yes
note
and
Start
no
no
Replace DVD DriveCheck DVD Drive work?
Exchange AV cable
Check the Connection OK? Reinsertion
yes
Check speaker OK?
yes
Replace Main Board
no
no
Change the speaker
5.0 TROUBLESHOOTING
SYMPTOM: THE DVD DRIVE DOES NOT WORK
SYMPTOM: THE DVD DRIVE DOESN＇T WORK
Start
Check DVD-Loader
connection OK?
Yes
Check the DVD-Loader
OK?
Yes
Replace main board
NO
Cable ReinsertionNO
Replace DVD-
Loader
5.0 TROUBLESHOOTING
SYMPTOM: ADAPTOR CANNOT POWER ON
Adaptor can not Power ON
Start
Check Adaptor OK?
Yes
Check the Power-ON
button and cable OK?
NO
Replace Button or
Cable
NO
Change adaptor SET OK?
YES
Replace Main Board
OK
Yes
No
Return set to
Customer
5.0 TROUBLESHOOTING
SYMPTOM: REMOTE CONTROL CANNOT WORK
SYMPTOM: THE REMOTE CONTROL CAN NOT
WORK
Start
Check CABLE form
bottom board to top board
connection OK?
Yes
Check TOP-board OK?
Cable ReinsertionNO
Replace IR receiver
Replace top boardNONO
Yes
Replace main board
OK
OK
OK
Return to custormer
5.0 TROUBLESHOOTING
SYMPTOM: NO SOUND FROM HEADPHONE
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