Philips PET-730, PET-732, PET-738, PET-735 Service manual

DVD Portable Player PET730/PET732/PET735/PET738

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 Overall Wiring Diagram…………………………………………7 Electrical Diagram……………………………………………… 8 Component Layout……………………………………………. 9 Service Part List………………………………………………… 10 Revision List……………………………………………………. 11

3141 785 31597

Version 1.7

1.0 TECHNICAL SPECIFICATION

General

Dimensions (W x H x D): 293 x 170 x 33 mm Weight: 0.85kg Power supply: DC 9V 1.8A Power consumption: 20W Operating temp. & RH: 0 - 50 degC / 30 – 90% RH Laser wavelength: 650nm Video system NTSC / PAL / AUTO

Output voltage 1kHz: 1.5V typical THD 20-20kHz (%): 0.03% typical Dynamic range: >/=80dB Signal/Noise ratio: >/=85dB Frequency response 0.220kHz): Channel Separation 1kHz >/=85dB Channel Balance 1kHz 1dB

Current consumption

DC-IN SUPPLY (9V)

Battery Charging Current 1.2A typical

BATT. SUPPLY (7.2V) Power Off 0A Playback with TFT on <1.2A typical Playback without TFT on <600mA Battery time (playback) >2.5 hour

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:

+/-1dB

>10mW 20Hz – 20kHz 80dB typical <1% 32dB

1dB

Playback disc type: DVD, Picture-CD,

SVCD, Video CD, MP3CD, CD-R/CD-RW, WMA-CD, DVD-R, DVDRW, DVD+R, DVD+RW

Video Playback Format: DVD / VCD / JPEG Audio Playback Format: CD/MP3, MP3-DVD,

WMA

Disc Diameter 12cm

Pixel specification

Zero bright-dot & max. 3 dark-dots

1.0 TECHNICAL SPECIFICATION

Factory Service Mode (FSM)

Procedure to check the software version of your portable DVD Player

1. Press [SETUP] to enter the setup Meun

2. Press [RETURN] and then press “1” -> ”2” -> ”3”

by remote control

3. The display will show the software version as the

date of which the software was built on the bottom of the screen.

Procedure to upgrade the software of your portable DVD Portable

For the best performance of your DVD Portable. Check www.philips.com/support for latest software upgrades available.

1. Download the latest software from the Philips

support site

2. Unzip the files and then burn it into a CD-ROM to

make a disc for upgrade

3. Power on the Portable DVD Player with AC/DC

adaptor

4. Play CD-ROM 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 is reset

automatically

6. Open the DVD door to remove the disc

Procedure to change region code of your portable DVD player

1. Power on player and open the DVD door

2. Press [SETUP] by remote control.

3. In Set Up Menu, select <Audio> and press [OK]

4. Press [2], [1], [2], [2], [2], [5], [<], [v]

5. Display will show the Region Code

6. Press Number Key button by remote control to select the region code

Refer below table for your region code setting

Region code “0” can be used for all regions!

8. Press

9. Power off and power on again to verify if region

Remarks:

[SETUP] to save and exit your setting

code change is done

1. Password is CONFIDENTIAL

2. Region code is printed on product type

plate. Due to DVD legislation region codes different to assigned region may not be released

2.0 SAFTETY INSTRUCTIONS

WARNING

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.

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.

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.

WARNUNG

ESD

WAARSCHUWING

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.

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.

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used.

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast.

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.

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.

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

Warning !

Invisible laser radiation when open. Avoid direct exposure to beam.

Varning !

Osynlig laserstrålning när apparaten är öppnad och spärren är urkopplad. Betrakta ej strålen.

Varoitus !

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

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.

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.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.to

protectthelaserdiodeformdamagebystaticelectricity.

Andalso,theLSIandICaresameasabove.

Groundconductive wriststrapforbody.

Solderingiron withgroundwire orceramictype

Conductivemat

Thegroundresistance betweenthegroundline andthegroundislessthan10

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.

3.0 INSTRUCTIONS FOR USE

OPEN

Opens disc door to insert or remove disc Confirms selection

POWER

Switches the player on / off

Press once to stop playback and store the stop position. Press twice to stop playback completely.

Start / pause / resume playback

Search backward ( ) or search forward ( ).

- VOL +

Volume control.

OPTION

Access additional functions.

Display MUNE page.

,,,

Up / down / left / right cursor

Confirm seletion

POWER/IR/CHR

Power /remote sensor /charging indicator.

PHONES 1 & 2

Headphones jack

A/V OUT

Audio/video output jack

A/V IN

Audio/video input jack

USB

USB connector

COAXIAL

Digital Audio output jack

DC IN 9V

Power supply socket

RESET

Reset the player when it is hanged up.

Car mounting screw hole

DVD PLAYER LAYOUT

10 11 12 13 14

3 4 5

CAUTION

Use of controls or adjustments or performance of procedures other than herein may result in hazardous radiation exposure or other unsafe operation.

REMOTE CONTROL

Display MENU page.

,,,

Up / down / left / right navigation key.

Confirm seletion.

VOL +/-

Volume control.

DISPLAY

Adjust the display value of the system.

Skip to previous chapter, track or title.

Start / pause / resume playback

Access additional functions.

0 - 9

Numeric keypad.

SUBTITLE

Subtitle language selector.

RETURN

For VCD menu page.

A - B

To repeat or loop a sequence in a title.

SETUP

Enter SETUP menu.

OPTION

Access additional functions.

Skip to next chapter, track or title.

Mute player volume

AUDIO

Audio language selector.

ZOOM

Enlarge video image.

8 9

15 16

4.0 MECHNICAL INSTRUCTIONS

1. Back side of the set as shown in Fig.1 Remove the screws on the base cover.

Fig.1

2. Soldered short pattern for laser diode as shown in Fig.2

5. Remove speaker grill and screw cushion on display frame as shown in Fig.5

Fig.5

6. Remove the screws on display frame as shown in Fig.6.

soldered

Fig.2

Disconnect the flex from TFT LCD. Remove the screws on button PCB board as shown in Fig.3

Fig.3

Disconnect the flex from DVD loader & PCB boards.

Then it will able to remove DVD loader and main PCB and Lithium battery as shown in Fig.4

Fig.6

Remove the screws on IF board as shown in Fig.7.

Fig.7

8. Disconnect the flex between IF board, power board and TFT LCD. Remove the screws on IF board, power board and TFT LCD. As shown in Fig.8.

Fig.4

Fig.8

5.0 TROUBLESHOOTING

SYMPTOM: NO POWER, NO GREEN LED

start

Check if the power cable

and

AC adapter

OK?

yes

replace cable/

adapter

set OK?

No defect, return

yes

set to customer

Check if the

power and play

button OK?

yes

replace MAIN

BOARD

replace connector

and switch unit

go to other SYMPTOM

SYMPTOM: NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL OUTPUT

start

Check

operation of the DVD drive. Does the DVD

drive work?

replace DVD drive

yes

Replace the main

board or the

connector

5.0 TROUBLESHOOTING

SYMPTOM: THE INITIAL SCREEN IS NOT DISPLAYED ON THE LCD

Refer to the

start

symptom NO POWER, NO GREEN LED

Check if the LED on the

front lights up?

yes

Check if the backlight is

OK?

yes

Check if the

lighting of the

LCD is OK?

yes

Replace LCD unit

or main board

Open the top and bottom assembly

to check the

connector harness

Open the top and bottom assembly

to check the

connector to the

main board

Replace broken

harness

yes

Is the

connector

harness broken?

Is the

connector

broken?

yes

Replace LCD

harness or main

board

Connect the LCD

harness to the

LCD unit

Remove the LCD cover and plate of

the LCD unit to

connector of the

check the

FL harness

Repair connector

Is the

connector OK?

yes

Replace FL

inverter or LCD

Remove the LCD

cover and plate of

the LCD unit to

check the

connection of the

harness to the

LCD unit

Is the

connection

OK?

SYMPTOM: NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL INPUT

start

Replace the main

board or the

connector

yes

Replace LCD unit

or main board

5.0 TROUBLESHOOTING

SYMPTOM: THE DVD DRIVE DOES NOT WORK

Press the DISC cover switch at the center of the DVD player and turn on the power. Then check whether or not the optical pick-

start

up lens of the DVD drive lights. CAUTION: Visible laser radiation when open and interlock defeated. Do not stare into Laser beam.

yes

Pick up lens light up OK

DVD drive does not work

Check the

optical pick up

lens?

Pick up lens does not light up at all

Check the

connectors of

the DVD drive

and main

board?

Not OK

Secure the

connection of the

DVD drive and

main board

Insert a DVD disc

and turn on the

power

What is the

reaction of the

DVD drive?

Pick up lens light up dim

The DVD drive works but the initializing operation of the optical pick-up lens does not start (the optical pick-up lens operates twice), or abnormal noise sound

Replace DVD

drive

Replace DVD

drive or main

board

The operation of the DVD player stops at initializing display.

Is there any

oading?displayed　

Nothing on display

yes

message shown on

display

Does the

image output

stop during the

operation?

Check the DVD

HECK DISK?displayed　

DVD disc OK DVD disc dirty

disc for fingerprints, dirt,

Is the DVD

disc OK?

No defect, return

set to customer

5.0 TROUBLESHOOTING

SYMPTOM: THE DVD DRIVE DOES NOT OPERATE WITH BATTERY

start

Install a good battery does the LED lights up orange while the AC adapter is connected and does the DVD drive operate OK?

NOTE:

- For this check, use a battery which is not fully charged (because the LED does not light when the battery is fully charged.)

- Before this check, make sure other function work correctly.

Replace batteryyes

Is the

connection of

the battery OK

inside the DVD

player?

yes

Replace main

board

Secure the

connection of the

battery harness

inside the DVD

SYMPTOM: NO SOUND COMES FROM THE HEADPHONES

start

player

Insert a good

headphones and check if

the problem persist?

yes

Replace main

board

Customer　

headphones

defective

6.0 OVERALL BLOCK DIAGRAM (for PET730/732)

DV23FB

PU mechanism

DRIVER (SA5954)

110~240V 50/60Hz

AC Adapter

TC7W53

FlashROM

KH29LU60CBTC-70G

64M SDRAM

HY57V641620ETP-H

RF AMP & SERVO & DVD PROCESSOR MPEG-2 DECODER & VIDEO ENCODER MT1389DE/H-L

+5V

DRIVER +5V

+3.3V +1.8V

74HCU04

+3.3V +5V +16V -13V

AUDIO +5V

27MHz

TFT POWER

27MHz

MX88V462UCG

AUDIO D/A (AK4388)

TFT MONITOR

VIDEO IN

VIDEO OUT

AUDIO AMP (AZ4558)

COAXIAL OUT

AUDIO OUT

DC IN +9V

DC / DC

(BQ24103)

(TPC8212)

(S-8232)

AUDIO +/-5V

BATTERY

TC74HC4052AFT

HWD4863

AUDIO IN

PHONE OUT

SPEAKER LOUT

SPEAKER ROUT

+ 32 hidden pages