Philips-PET-1046-Service-Manual(1) 电路图 维修手册.pdf
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1、DVD Portable Player PET1046 All version 3141 785 33270 Version 1.0 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, me
2、chanical, photocopying, or otherwise without the prior permission of Philips Published by FK 0851 AVM Printed in the Netherlands Subject to Modification TABLE OF CONTENTS Chapter Technical Specification & Service Tips. 1 Safety Instructions. 2 Instruction for Use 3 Mechanical Instructions. 4 Trouble
3、shooting 5 Overall Block Diagram. 6 Overall Wiring Diagram7 Electrical Diagram 8 Component Layout. 9 Service Part List 10 Revision List. 11 Service Manual RadioFans.CN 收音机爱 好者资料库 1.0 TECHNICAL SPECIFICATION General Dimensions (W x H x D): 270 x 190 x 38 mm Weight: 1.5kg Power supply: Input 100-240V,
4、 50/60Hz Output DC 9V-12V, 1.8-2.2A Power consumption: 20W Operating temp. & RH: 0 - 50 degC / 30 90% RH Laser wavelength: 650nm Video system NTSC / PAL / AUTO Dynamic range: /=80dB Signal/Noise ratio: /=85dB Frequency response 20Hz-20kHz +/-1dB Channel Separation 1kHz /=85dB Channel Balance 1kHz 1d
5、B Audio out (analog audio) Output level: 2V +/- 10% Load impedance: 10Kohm Video out Output level 1Vp p +/- 20% Load impedance 75ohm Current consumption DC-IN SUPPLY (9V) Battery Charging Current 2.2A typical BATT. SUPPLY (7.2V) Power Off 0A Playback with TFT on 2.2A typical Playback without TFT on
6、2.5 hour Headphone out (headphone output load 2x16 ohm) Maximum output power: 10mW Frequency response: 20Hz 20kHz SNR (A-wght): 80dB typical THD (0.2-20kHz): ”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 scr
7、een. Procedure to upgrade the software of your portable DVD Portable For the best performance of your DVD Portable. Check 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
8、 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 Proce
9、dure 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 and press OK 4. Press 2, 1, 2, 2, 2, 5, Component TV Radio USB AV-in 18 TELETEXT Activate TELETEXT. Volume control. SUBTITLE Subtitle language s
10、elector. AUDIO Audio language selector. 21 22 A - B To repeat or loop a sequence in a title. To adjust the screen of 16:9 or 4:3. 17 16 5 6 SETUP Enter SETUP menu. 9+ CH - Channel control. 10 MUTE Muting player volume. OK or play / pause. 3 2 / / 4.0 MECHNICAL INSTRUCTIONS Fig.1 1. Side view as Fig.
11、1 Remove base cover adorn discreteness as Fig.1. 2. Remove screws of the base cover as Fig.2. 6. Broken connection of DVD driver to remove DVD driver , then soldered short pattern for laser diode as Fig.6. 3. Fig.2 Remove screws of the base cover as Fig.3 Fig.3 Fig.4 4. Open the door and remove scre
12、ws to remove door & middle cabinet discreteness as Fig.4. 5. Rotate the top and remove screws to break the top and the base away as Fig.5. Fig.5 7. Fig.6 Remove screws to remove lithium battery as Fig.7. 8. Remove screws to remove mian board and powerkey board as Fig.8. Fig.7 Fig.8 soldered 4.0 MECH
13、NICAL INSTRUCTIONS Fig.9 9. Remove speaker grill as Fig.9. 10. Remove screws to remove top cover disc- reteness and hinge as Fig.10. Fig.10 11. Remove screws and broken connection to remove IF board as Fig.11. 12. Fig.11 Remove the screw to remove LED backlight board as Fig.12. 13. Remove LCD TFT ,
14、function board and speakers as Fig.13. Fig.12 Fig.13 5.0 TROUBLESHOOTING & SERVICE TIPS no replace cable/ adapter SYMPTOM: NO POWER, NO GREEN LED Check if the power cable and AC adapter OK? No defect, return set to customer yes start set OK? Check if the power and play button OK? replace connector a
15、nd switch unit replace MAIN BOARD go to other SYMPTOM no yes yes no replace DVD drive SYMPTOM: NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL OUTPUT start Check operation of the DVD drive. Does the DVD drive work? yes no Replace the main board or the connector 5.0 TROUBLESHOOTING & SERVICE TIPS no SY
16、MPTOM: THE INITIAL SCREEN IS NOT DISPLAYED ON THE LCD Check if the LED on the front lights up? start Check if the backlight is OK? Check if the lighting of the LCD is OK? Open the top and bottom assembly to check the connector harness Open the top and bottom assembly to check the connector to the ma
17、in board yes yes no no yes Refer to the symptom NO POWER, NO GREEN LED Is the connector harness broken? Replace broken harness yes Remove the LCD cover and plate of the LCD unit to check the connector of the FL harness Is the connector OK? no Repair connector Replace FL inverter or LCD no yes Is the
18、 connector broken? Replace LCD harness or main board yes Remove the LCD cover and plate of the LCD unit to check the connection of the harness to the LCD unit no Is the connection OK? Connect the LCD harness to the LCD unit no Replace LCD unit or main board yes Replace LCD unit or main board SYMPTOM
19、: NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL INPUT start Replace the main board or the connector 5.0 TROUBLESHOOTING & SERVICE TIPS SYMPTOM: THE DVD DRIVE DOES NOT WORK start Check the optical pick up lens? yes Pick up lens does not light up at all Press the DISC cover switch at the center of the
20、 DVD player and turn on the power. Then check whether or not the optical pick- up lens of the DVD drive lights. CAUTION: Visible laser radiation when open and interlock defeated. Do not stare into Laser beam. Replace DVD drive Pick up lens light up dim Check the connectors of the DVD drive and main
21、board? OK Secure the connection of the DVD drive and main board Not OK Pick up lens light up OK Insert a DVD disc and turn on the power What is the reaction of the DVD drive? The DVD drive works but the initializing operation of the optical pick-up lens does not start (the optical pick-up lens opera
22、tes twice), or abnormal noise sound Replace DVD drive or main board DVD drive does not work The operation of the DVD player stops at initializing display. Is there any message shown on display oading?displayed Nothing on display Check the DVD disc for fingerprints, dirt, HECK DISK?displayed Is the D
23、VD disc OK? DVD disc OKDVD disc dirty No defect, return set to customer Does the image output stop during the operation? yes no 5.0 TROUBLESHOOTING & SERVICE TIPS Secure the connection of the battery harness inside the DVD player SYMPTOM: THE DVD DRIVE DOES NOT OPERATE WITH BATTERY start Is the conn
24、ection of the battery OK inside the DVD player? yes no Replace main board Replace batteryyes 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 doe
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