All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by Liu BZH 0272 Service BPAVC...
Safety Instructions, Warnings, Notes, and Service Hints 2. Safety Instructions, Warnings, Notes, and Service Hints Safety Instructions Warnings 2.1.1 General Safety 2.2.1 General Safety regulations require that during a repair: All ICs and many other semiconductors are susceptible to Connect the unit to the mains via an isolation transformer. electrostatic discharges (ESD, ).
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: 1.1 Issue Date : March, 2003 Revision Information 1. Update so that DVD625/781/782/785 and DVD625K/131/692 covered. 2. Add trouble shooting and test instructions 3. Correct the mapping in layout Mpeg board components side 4. Correct the wiring diagram. 5. Update the schematics Mpeg...
5. Diagnostic Software, Trouble Shooting and Test Instructions Diagnostic Software reserved. It will be prepared later. 5.1 System working procedure for MediaTeK DVD-Player (MT1379 + MT1366) Power on 1. Initialize related registers (servo, DSP, RISC) 2. Move code related with RISC to SDRAM 3.
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5.2 Maintenance Flow chart Start Replace extainal Confirm if AC is compatible with PSU or a the DVD-Player require transform need Power on Voltages 1. Check Cable in all pins of item 1601 are 2. Replace PSU if Mono PWB is not short, otherwise find out normal? where short first Check regulator LD1117 (item7601) and diode 1N4002 (item6604)
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If will the tray Signal Check the position-switch close automatically when TROUT and TRIN is in LOADER it is open correct? Signal Check the circuit between TRCLOSE & TROPEN MT1336 and driver IC correct? (item7603) Signal Check Motor driver IC LOAD+ &...
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Check the peripheral Signal circuit of MT1366 When read disc, LDO1 and LDO2 is Check the peripheral Laser ON OK? normal? circuit of two transistor (item 7620 & 7621) Voltage of Check the peripheral TP22 &TP24 circuit of two transistor (item 7620 &...
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Signal TEO Check MT1336 and its (pin21 of MT1336) Track on OK? peripheral circuit. normal? Signa TRSO Check the TRSO connection (pin13 of MT1379) between MT1379 (pin13) and normal? MT1336 (pin26) Signa l Check MT1336 and its T+ & T- peripheral circuit.
PWB overview and mapping information are given. Add trouble shooting and test instructions. Add the spare parts list DVD625/781/782/785, DVD625K/692/131. 11.2 Manual 3122 785 12822 This version covers DVD627K/781/782/785 also. The cover has update accordingly. and add the spare parts list DVD627K/781/782/785.
3141 018 04012 3141 018 04301 retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by Liu BZH 0364 Service BPAVC Printed in the Netherlands Subject to modification...
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Electrical Diagrams MPEG Board FR1 MPEG Board: INDEX 1601 C2 T1 B3 1610 C2 T2 B3 2601 D5 T3 B3 INDEX NAME TYPE DEVICE 2603 D2 T4 B3 2605 E7 T5 B3 Digital 5V SUPPLY 2606 D9 TP23 E3 RVCC Servo 5V MT1336E AVCC...