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

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1、 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 o

2、f 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 Inform

3、ation . 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 7

4、85 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

5、 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 ? ? ? ? ? ? ? ? ? ? ?

6、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 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

7、 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 ST17

8、00B 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 T1

9、0 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 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

10、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 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 &

11、 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

12、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

13、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

14、 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 metal

15、lic 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

16、 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 t

17、o 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 T

18、AS5508 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

19、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

20、(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

21、 +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