Philips-HTS-3378-Service-Manual(1) 电路图 维修手册.pdf

Copyright 2009 Philips Consumer Electronics B.V. Eindhoven, The Netherlands 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 SL0910 Service AudioPrinted in The Netherlands Subject to modification Version 1.2 TABLE OF CONTENTS Location of PCB Boards . 1-2 Versions Variation . 1-2 Measurement Setup . 1-4 Specifications . 1-3 Service Aids . 1-5 ESD & Safety Instruction . 1-6 Lead-free soldering Information . 1-7 Setting procedure & Repair Instructions. 2 Disassembly Instructions & Service positions . 3 Block & Wiring Diagram . 4 DISP+LED+VOL Board. 5 MAIN+Y.U.V Board. 6 Power Board . 7 Service Manual MP3 IN+MIC Board. 8 Mechanical Exploded View & Part List. 9 Revision List . 10 GB Chapter 3141 785 33482 HTS3371/98DVD Home Theater System Service HTS3378/98/93 RadioFans.CN 收音机爱 好者资料库 1 - 2 LOCATION OF PCB BOARDS VERSION VARIATION: Type/Versions Features HTS3371 Output Power - 1000W Voltage (110127V) Voltage (220240V) MAIN+Y.U.V Board DISP+LED+VOL Board MP3 IN&MIC Board Type/Versions Board in used HTS3371 C/M C/M C /98 SERVICE SCENARIO MATRIX: /98 x x *C = Component Level Repair M = Module Level Repair MP3 IN & MIC PCB POWER PCB MAIN PCB Y.U.V PCB LED PCB DISPLAY PCB VOLUME PCB Power Board C/M HTS3378 /93/98 C/M C/M C C/M HTS3378 /93/98 x x RadioFans.CN 收音机爱 好者资料库 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? RadioFans.CN 收音机爱 好者资料库 ? L E V E L ME TE R e.g. Sennheiser UPM550 w ith F F -f ilter S/N and distortion meter e.g. Sound Technology ST1700B L R DUT CD Use Audio Signal Disc ( rep laces test disc 3) SBC429 4822 397 30184 Bandp ass 250Hz-15kHz e.g. 7122 707 48001 L F V oltmeter e.g. PM2534 DUT R F G enerator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Use a bandp ass f ilter to eliminate hum ( 50Hz, 100Hz) and disturbance f rom the p ilottone ( 19kHz, 38kHz) . R i= 50 Tuner FM MEASUREMENT SETUP ? Service Tools: Universal Torx driver holder .4822 395 91019 Torx bit T10 150mm .4822 395 50456 Torx driver set T6-T20 .4822 395 50145 Torx driver T10 extended .4822 395 50423 Compact Disc: SBC426/426A Test disc 5 + 5A .4822 397 30096 SBC442 Audio Burn-in test disc 1kHz .4822 397 30155 SBC429 Audio Signals disc .4822 397 30184 Dolby Pro-logic Test Disc .4822 395 10216 SERVICE AIDS HANDLING CHIP COMPONENTS ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? CAUTION! T? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 3 - 13 - 1 DISASSEMBLY INSTRUCTIONS 3) Loosen 6 screws and remove the Top Cover by lifting the rear portion upwards before sliding it out towards the rear. - 1 screw “A” each on the left & right side as shown in fi gure 4. - 4 screws “B” at the back panel as shown in fi gure 5. 4) Loosen 5 screws “C“ at the front panel bracket as in fi gure 6 to remove the front panel. 24mm mm2 Figure 2 Dismantling of the Front Panel Assemble 1) Open the DVD Tray by using the Open/Close Button while the Set is ON and disconnect the mains supply after removing the Tray Cover. Note: If this is not possible, the DVD Tray has to be open manually. Take a mini screw driver about 2mm diameter and make a marking 24mm from the tip as shown in fi gure 2 . Place the set on its side, insert the mini screw driver till the marking and slide it towards the left as shown in fi gure 1 until the Tray moves out of the Front Panel. 2) Return the set to its upright position and remove the Tray Cover as shown in Figure 3 and close the tray manually by pushing it back in. Figure 1 ? Figure 3 Figure 4 A Figure 5 Figure 6 C Dismantling of the DVD Module 1) Loosen 4 screws “ D “ at the DVD Module as shown in fi gure 7. Figure 7 D B 3 - 23 - 2 SERVICE POSITIONS Service position A Note:In some service positions the components or copper patterns of one board may risk touching its neighbouring pc boards or metallic parts. To prevent such short-circuit use a piece of hard paper or other insulating material between them. Dismantling of the MAIN+SCART Board 1) Loosen 4 screws “G” on the top of Main Board as shown in fi gure 11. 2) Loosen 11 screws at the back panel as shown in fi gure 12. Figure 9 Dismantling of the DISP+LED+VOL&MP3 IN Board 1) Loosen 10 screws “E” on the top of DISP+LED+VOL&MP3 IN Board as shown in fi gure 8. Figure 8 E Dismantling of the Power Board 1) Loosen 4 screws “F” on the top of Power Board as shown in fi gure 9. 2) With a pincers to nip this space as shown in fi gurer 10 and to take up the power board. F Figure 11 G Figure 12 Figure 10 H 4 - 14 - 1 BLOCK DIAGRAM MT1389S TQFP256 IC V5888 Loader motor driver ASA DVD Loader IC TC4051 SWIT CH AUX- IN A/D IC WM8782 TV-I N Tuner module Karaoke IN MP3 Direct IC 4558 OPEN VIDE O FI LTER Y. U.V OUT SCAR T OUT OPEN VI DEO SWITCH TAS5508 D-AMP PWM Controlle r Auto Power detect or control IC 4558 Scart audio IN from TV C SPK SR SPK SL SPK SUB SPK FL SPK +- FR SPK +-+-+-+-+- TAS5352A POWE R AMP CV BS-V IDEO SDAR M 4Mx16 IC AT24C16 SERI AL EEPROM USB 2.0 WM8805 SPDIF IN IC MX 29LV320B TC 4Mx8bit FLASH IC 74F244x1 INPUT PIN EXPA ND VF D Display VFD DRIV ER KE YPT6311 HDMI CEC MC U RDSCL RDSDA RDSDAV N Tun L Tun R Tun L Tun R TV L TV R AUX L AUX R MP3 L MP3 RMP3 R MP3 L MIC L MIC R MIC R MIC L L R BCL K LRCL K MCLK P-BCL K P-LRCL K P-DOUT P-MCLK USB DP USB DM V-DAT A V-CLK V-CS IR IR IR KEY control SDASDA SCL Scart audio IN (option) CV BS Video ( L C ) Scart audioScart audio BCL K LR CL K DOUT MCLK +5V B+5V 3.3V +12V -12V +12V -12V +12V -12V +12V -12V x 2 pcs +9V -3.3V +3.3V +3.3V +3.3V +3.3V +3.3V +3.3V +1.8V+3.3V +VCC IC 74F244x1 INPUT PIN EXPA ND +3.3V DOUT +5V VI DEO VI DEO Transistor 2SB772 Transistor 2SB772 +1.8V +3.3V +36V +12V -12V B+5V 600W power supply unit +5V DAO 2 DAO 1 DAO 0 DAO 2 DAO 1 DAO 0 +12V Fan control FULL SOUND OPEN Sanyo / Sony pick up SMT32F101Cx 48Pin 64K from speaker outpu t from speaker outpu t HDMI OUT 1080P MT1389S HDM I Video ou t ESD REJECT OR 12pcs -27V TAS5352A POWE R AMP +VCC HDMI out H