Philips PET-831 Service Manual
DVD Portable Player PET831
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
Exploded View Diagram & Service Part List………………. 8
Revision List……………………………………………………. 9
3141 785 32291
Version 1.1
1.0 TECHNICAL SPECIFICATION
General
Dimensions (W x H x D): 255 x 170 x 31 mm
Weight: 0.97kg
Power supply: 100 – 240V (AC adaptor)
Power consumption: 24W
Operating temp. & RH: 0 – 45 degC / 30 – 90% RH
Audio System
Output voltage 1kHz: 1.2Vrms typical
THD 20-20kHz (%): 0.03% typical
Dynamic range: >80dB
Signal/Noise ratio: >80dB
Frequency response (2020kHz):
Channel Separation 1kHz >=85dB
Channel Balance 1kHz 1dB
Current consumption
DC-IN SUPPLY (9V)
Standby Power off 5mA
Voltage 7.4V
Capacity 2600mAH
Battery playtime 3 hour
Charging time <4.0 hour
Standby Power off <300uA
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:
DC 12V (Battery)
+1dB/-0.5
BATT. SUPPLY
10mW
+/-3dB
>80dB
0.2% typical
>55dB
<1dB
Playback disc type: DVD, Picture-CD,
Video Playback Format: DVD / VCD / JPEG /
Audio Playback Format: CD/MP3, MP3-DVD,
Disc Diameter 12cm
SVCD, Video CD, MP3CD, CD-R/CD-RW,
WMA-CD, DVD-R, DVDRW, DVD+R, DVD+RW
MPEG4 / DIVX3,4,5,6
WMA
Pixel specification
Zero bright-dot & max. 3 dark-dots
Factory Service Mode (FSM)
To check the software version and change
region code of your DVD Portable.
1. Press “
2. Press “ ” (PLAY/PAUSE) on the main se
3. Press “1” -> “4” -> “0” -> “0” by remote control
” (STOP/EJECT) on the main set
4. The screen is under “FSM MENU”
5. Press “
” to select “VERSION”,
“REGION”, “AGING” and “FUNCTION”
6.
Refer below table for your region code setting
Audio Playback
Formats:
7. Press “ ” to save your setting
8. Press “SETUP” to exit
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) PANEL firmware upgrade
1. Unzip the WDR831.ROM
2. Drag-n-drop to USB drive
3. Power on the player with AC/DC adaptor
4. Insert USB drive to the USB port of the main set
5. The set will detect the updated firmware
6. Press “OK” to confirm and proceed
Warning: Do not unplug the AC adaptor during
firmware upgrade to prevent flash corrupt of the
set!!
B) DVD firmware upgrade
7. Unzip the WDR831.ROM (different file from step 1)
8. Drag-n-drop to USB drive
9. Power on the player with AC/DC adaptor
10. Insert USB drive to the USB port of the main set
11. The set will detect the updated firmware
12. Press “OK” to confirm and proceed
Warning: Do not unplug the AC adaptor during
firmware upgrade to prevent flash corrupt of the
set!!
1.0 TECHNICAL SPECIFICATION
Symptom:
Pop up screen "FSM AGING FAIL INFO" after replacing the mainboard
Cure:
After replacing the mainboard or LCD, power on the set with below error message:
It could be resolved by the following procedure:
1. Press "SETUP" key on the remote control
2. Press "RETURN" key on the remote control to enter the FSM meun
3. Go to aging with the "NAVIGATION" key on the set ("PLAY/PAUSE" key)
4. Change FSM aging to "FINAL" and then press "OK" key to confirm phase changed
5. Exit the menu by pressing the "SETUP" key
(It could be found by S/C # PI-07/031 on service support site.)
2.0 SAFTETY INSTRUCTIONS
WARNING
GB
All ICs and many other semi-conductors are
susceptible to electrostatic discharges (ESD).
Careless handling during repair can reduce life
drastically.
When repairing, make sure that you are
connected with the same potential as the mass
of the set via a wrist wrap with resistance.
Keep components and tools also at this
potential.
F
ATTENTION
Tous les IC et beaucoup d’autres
semi-conducteurs sont sensibles aux
décharges statiques (ESD).
Leur longévité pourrait être considérablement
écourtée par le fait qu’aucune précaution n’est
prise à leur manipulation.
Lors de réparations, s’assurer de bien être relié
au même potentiel que la masse de l’appareil et
enfiler le bracelet serti d’une résistance de
sécurité.
Veiller à ce que les composants ainsi que les
outils que l’on utilise soient également à ce
potentiel.
ESD
D
WARNUNG
Alle ICs und viele andere Halbleiter sind
empfindlich gegenüber elektrostatischen
Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kan
die Lebensdauer drastisch reduzieren.
Veranlassen Sie, dass Sie im Reparaturfall über
ein Pulsarmband mit Widerstand verbunden
sind mit dem gleichen Potential wie die Masse
des Gerätes.
Bauteile und Hilfsmittel auch auf dieses gleiche
Potential halten.
WAARSCHUWING
NL
Alle IC’s en vele andere halfgeleiders zijn
gevoelig voor electrostatische ontladingen
(ESD).
Onzorgvuldig behandelen tijdens reparatie kan
de levensduur drastisch doen verminderen.
Zorg ervoor dat u tijdens reparatie via een
polsband met weerstand verbonden bent met
hetzelfde potentiaal als de massa van het
apparaat.
Houd componenten en hulpmiddelen ook op
ditzelfde potentiaal.
I
AVVERTIMENTO
Tutti IC e parecchi semi-conduttori sono
sensibili alle scariche statiche (ESD).
La loro longevità potrebbe essere fortemente
ridatta in caso di non osservazione della più
grande cauzione alla loro manipolazione.
Durante le riparazioni occorre quindi essere
collegato allo stesso potenziale che quello della
massa dell’apparecchio tramite un braccialetto
a resistenza.
Assicurarsi che i componenti e anche gli utensili
con quali si lavora siano anche a questo
potenziale.
GB
Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified,
be used.
NL
Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,
identiek aan de gespecificeerde, worden toegepast.
F
Les normes de sécurité exigent que l’appareil soit remis à l’état
d’origine et que soient utiliséés les piéces de rechange identiques
à celles spécifiées.
D
Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu
beachten. Der Original zustand des Geräts darf nicht verändert werden;
für Reparaturen sind Original-Ersatzteile zu verwenden.
I
Le norme di sicurezza esigono che l’apparecchio venga rimesso
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.
“Pour votre sécurité, ces documents
doivent être utilisés par des spécialistes agréés, seuls habilités à réparer
votre appareil en panne”.
CLASS 1
LASER PRODUCT
GB
Warning !
Invisible laser radiation when open.
Avoid direct exposure to beam.
S
Varning !
Osynlig laserstrålning när apparaten är öppnad och spärren
är urkopplad. Betrakta ej strålen.
Varoitus !
SF
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen!
3122 110 03420
"After servicing and before returning set to customer perform a
leakage current measurement test from all exposed metal parts to
earth ground to assure no shock hazard exist. The leakage current
must not exceed 0.5mA."
DK Advarse !
Usynlig laserstråling ved åbning når sikkerhedsafbrydere er
ude af funktion. Undgå udsaettelse for stråling.
2.1 ESD PROTECTION
Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflaser
maybereceived.
PREPARATIONOFSERVICING
PickupHeadconsistsofalaserdiodethatisverysusceptibletoexternalstaticelectrocity.
Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,
itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.to
protectthelaserdiodeformdamagebystaticelectricity.
Andalso,theLSIandICaresameasabove.
Groundconductive
wriststrapforbody.
Solderingiron
withgroundwire
orceramictype
1M
Conductivemat
Thegroundresistance
betweenthegroundline
andthegroundislessthan10
SAFTY NOTICE
LEAKAGE CURRENT CHECK
SAFTY PRECAUTIONS
Plug the AC line cord directly into a 120V AC outlet (do
not use an isolation transformer for this check). Use an
AC voltmeter, having 5000 per volt or more sensitivity.
Connect a 1500 10W resistor,paralleled by a 0.15uF
150V AC capacitor between a knomn good earth ground
(water pipe, conduit, etc.) and all exposed metal parts of
cabinet (antennas, handle bracket, metal cabinet
screwheads, metal overlays, control shafts, etc.).
READING SHOULD NOT EXCEED 0.3V
DVD VIDEO PLAYER
Measure the AC voltage across the 1500 resistor.
The test must be conducted with the AC switch on and
then repeated with the AC switch off. The AC voltage
indicated by the meter may not exceed 0.3V.A reading
exceeding 0.3V indicates that a dangerous potential
exists, the fault must be located and corrected.
Repeat the above test with the DVD VIDEO PLAYER
power plug reversed.
NEVER RETURN A DVD VIDEO PLAYER TO THE
CUSTOMER WITHOUT TAKING NECESSARY
CORRECTIVE ACTION.
AC VOLTMETER
(5000 per volt
or more sensitivity)
Good earth ground
1500
10W
such as a water pipe,
conduit, etc.
AC OUTLET
0.15uF 150V AC
Test all exposed metal.
Voltmeter Hook-up for Leakage Current Check
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated "dangerous voltage" within the
product's enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the appliance.
2.2 SAFETY INSTRUCTIONS
Battery Handling Guideline
Since the battery is packed in soft package, to ensure its better performance, it’s very important to carefully handle
the battery
2.2.1 Soft Aluminium foil
The soft aluminum packing foil is very easily damaged by sharp edge parts such as Ni-tabs, pins and needles.
• Don’t strike battery with any sharp edge parts
• Trim your nail or wear glove before taking battery
• Clean worktable to make sure no any sharp particl e
2.2.2 Sealed edge
Sealing edge is very flimsy
• Don’t bend or fold sealing edge
2.2.3 Folding edge
The folding edge is form in battery process and passed all hermetic test.
• Don’t open or deform folding edge
2.2.4 Tabs
The battery tabs are not so stubborn especially for aluminum tab.
• Don’t bend tab
2.2.5 Mechanical shock
• Don’t Fall, hit, bend battery body
2.2.6 Short
Short terminals of battery is strictly prohibited, it may damage battery.
3.0 INSTRUCTION FOR USE
4.0 MECHANICAL INSTRUCTION
Disassembly Procedure Spare Parts
1 Remove five screws on
back cabinet to separate
top cabinet and back
cabinet.
2 Generally open the front
cabinet.
(5pcs)
3 Disassemble FPC from
turn board on top cabinet.
4 Disassemble connecter of
speaker from main board.
4.0 MECHANICAL INSTRUCTION
5 After 3 and 4 procedures,
we will get top cabinet
assembly and back
cabinet assembly.
Remove three conductive
6
fabrics.
7 Disassemble FPC of TFT-
LCD from turn board.
(3pcs)
4.0 MECHANICAL INSTRUCTION
8 Remove six screws on
turn board and jogging
board. Disassemble
connecter of TFT-LCD
from turn board.
(6pcs)
9 Remove two screws on
eject board.
10 Remove all PCB boards
on top cabinet. Remove
six screws on speaker,
and then remove
speaker.
(2pcs)
(6pcs)
4.0 MECHANICAL INSTRUCTION
11 Remove six screws and
sponges on TFT-LCD.
(6pcs)
12 Remove TFT-LCD and
disassembly of top
cabinet is ok.
13 Remove four screws o n
driver and FFC of driver
from main board.
(6pcs)
(4pcs)
14 Remove top keypad
board from back cabinet,
and disassemble FFC
from main board.
4.0 MECHANICAL INSTRUCTION
15 Remove four screws o n
main board.
(4pcs)
16 Remove six screws on
plate metal EMI.
17 Remove two screws on
PCB of battery.
(6pcs)
(2pcs)
18 Use tool to remove
battery from back cabinet.
4.0 MECHANICAL INSTRUCTION
19 Finally, we will get the
back cabinet.
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
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