Philips-HTS-3021-Service-Manual(1) 电路图 维修手册.pdf
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1、 1 - 1 DVD Home Theater System Service HTS3021/98/94 TABLE OF CONTENTS Chapter LASER BEAM SAFETY PRECAUTIONS.1-2 STANDARD NOTES FOR SERVICING.1-3 SAFETY AND IMPORTANT NOTICE.1-7 LOCATION OF PCB BOARDSVERSION VARIATION .2-1 REMOTE CONTROL.2-2 OPERATING CONTROLS AND FUNCTIONS .2-3 SPECIFICATIONS .3-1
2、MEASUREMENT SETUP. 3-2 . SYSTEM,REGION CODE,ETC.SETTING PRODURE.3-3 RETURN UNIT TEST FLOW.3-4 MAIN UNIT REPAIR CHART.3-5 DISASSEMBLY INSTRUCTIONS .4 BLOCK WIRING DIAGRAM.5 AMPLIFIER BOARDLED + KEY BOARD DECODE BOARDPOWER BOARD.6 MECHANICAL EXPLODE VIEWPART LIST.10 REVISION LIST.11 Copyright 2009 Phi
3、lips 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. Publishe
4、d by LM0909 Service Audio Printed in The Netherlands Subject to modification Version 1.0 GB 3139 785 3483 0 Service Manual . . RadioFans.CN 收音机爱好者资料库 LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or
5、allow it to strike against your skin. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on. Do not look directly at the laser beam. CAUTION: Use of controls and a
6、djustments, or doing procedures other than those specified herein, may result in hazardous radiation exposure. CAUTION LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM. Location: Top of DVD mechanism. Page 1 of 51 1 - 2 RadioFans.CN 收音机爱好者资料库 STANDARD NOTES FOR SERVICING Circuit Board Indications 1
7、. The output pin of the 3 pin Reg u lato r ICs i s indicated a s shown. 2. For othe r ICs, pin 1 a n d every fifth pin are indicated a s shown. 3. The 1st pin of every male con n ec tor i s indicated a s shown. Instructions for Connectors 1. When you connect or disconnect the FFC (Flexible Foil Conn
8、ector) cable, be sure to first disconnect the AC cord. 2. FFC (Flexible Foil Connector) cable should be inserted parallel into the connector, not at an angle. Pb (Lead) Free Solder When soldering, be sure to use the Pb free solder. IDENTIFICATION: Regardless of special logo (not always indicated) On
9、e must treat all sets from 1.1.2005 onwards, according next rules. Important note: In fact also products a little older can also be treated in this way as long as you avoid mixing solder-alloys (leaded/ lead-free). So best to always use SAC305 and the higher temperatures belong to this. Due to lead-
10、free technology some rules have to be respected by the workshop during a repair: Use only lead-free solder alloy Philips SAC305 with order code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your solder-equipment. In general use of solder paste within works
11、hops should be avoided because paste is not easy to store and to handle. Use only adequate solder tools applicable for leadfree solder alloy. The solder tool must be able To reach at least a solder-temperature of 400C, To stabilize the adjusted temperature at the solder-tip To exchange solder-tips f
12、or different applications. Adjust your solder tool so that a temperature around 360C - 380C is reached and stabilized at the solder joint. Heating-time of the solder-joint should not exceed 4 sec. Avoid temperatures above 400C otherwise wear-out of tips will rise drastically and flux-fluid will be d
13、estroyed. To avoid wear-out of tips switch off un-used equipment, or reduce heat. Mix of lead-free solder alloy / parts with leaded solder alloy / parts is possible but PHILIPS recommends strongly to avoid mixed solder alloy types (leaded and lead-free). If one cannot avoid, clean carefully the sold
14、er-joint from old solder alloy and re-solder with new solder alloy (SAC305). Use only original spare-parts listed in the Service-Manuals. Not listed standard-material (commodities) has to be purchased at external companies. Special information for BGA-ICs: - always use the 12nc-recognizable solderin
15、g temperature profile of the specific BGA (for desoldering always use highest lead-free Page 3 of 51 1 - 3 RadioFans.CN 收音机爱好者资料库 temperature profile, in case of doubt) - lead free BGA-ICs will be delivered in so-called dry-packaging (sealed pack including a silica gel pack) to protect the IC agains
16、t moisture. After opening, dependent of MSL-level seen on indicatorlabel in the bag, the BGA-IC possibly still has to be baked dry. This will be communicated via AYS-website. Do not re-use BGAs at all. For sets produced before 1.1.2005, containing leaded soldering-tin and components, all needed spar
17、e-parts will be available till the end of the service-period. For repair of such sets nothing changes. On our website www.atyourservice.ce.P you find more information to: BGA-de-/soldering (+ baking instructions) Heating-profiles of BGAs and other ICs used in Philips-sets. You will find this and mor
18、e technical information within the “magazine”, chapter “workshop news”. For additional questions please contact your local repair-helpdesk. How to Remove / Install Flat Pack-IC 1. Removal With Hot-Air Flat Pack-IC Desoldering Machine: 1. Prepare the hot-air flat pack-IC desoldering machine, then app
19、ly hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. S-1-1) 2. Remove the flat pack-IC with tweezers while applying the hot air. 3. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat u
20、p. Then remove (glue will be melted). (Fig. S-1-6) 4. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) CAUTION: 1. The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC. 2. Do not suppl
21、y hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. S-1-2) 3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break or damage the f
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