Philips-PET-835-Service-Manual(1) 电路图 维修手册.pdf
《Philips-PET-835-Service-Manual(1) 电路图 维修手册.pdf》由会员分享,可在线阅读,更多相关《Philips-PET-835-Service-Manual(1) 电路图 维修手册.pdf(65页珍藏版)》请在收音机爱好者资料库上搜索。
1、DVD Portable Player PET830/PET835 All version 3141 785 31575 Version 1.5 TABLE OF CONTENTS Chapter Technical Specification fr Reparaturen sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi d
2、i ricambio identici a quelli specificati. After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110 03420 GBWa
3、rning ! Invisible laser radiation when open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! D
4、KAdvarse ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. When?the?power?supply?is?being?turned?on,?you?may?not?remove?this?laser?cautions?label.?If?it?removes,?radiation?of?laser may?be?received. 2.1 ESD PROTECTION PREPARATION?OF?SERVICING Pi
5、ckup?Head?consists?of?a?laser?diode?that?is?very?susceptible?to?external?static?electrocity. Although?it?operates?properly?after?replacement,?if?it?was?subject?to?electrostatic?discharge?during?replacement, its?life?might?be?shortened.?When?replacing,?use?a?conductive?mat,?soldering?iron?with?ground
6、?wire,etc.?to protect?the?laser?diode?form?damage?by?static?electricity. And?also,?the?LSI?and?IC?are?same?as?above. Soldering?iron with?ground?wire or?ceramic?type Ground?conductive wrist?strap?for?body. Conductive?mat The?ground?resistance between?the?ground?line and?the?ground?is?less?than?10 1M
7、SAFTY NOTICE Plug the AC line cord directly into a 120V AC outlet (do not use an isolation transformer for this check). Use an AC voltmeter, having 5000 per volt or more sensitivity. Connect a 1500 10W resistor,paralleled by a 0.15uF 150V AC capacitor between a knomn good earth ground (water pipe, c
8、onduit, etc.) and all exposed metal parts of cabinet (antennas, handle bracket, metal cabinet screwheads, metal overlays, control shafts, etc.). SAFTY PRECAUTIONS LEAKAGE CURRENT CHECK Measure the AC voltage across the 1500 resistor. The test must be conducted with the AC switch on and then repeated
9、 with the AC switch off. The AC voltage indicated by the meter may not exceed 0.3V.A reading exceeding 0.3V indicates that a dangerous potential exists, the fault must be located and corrected. Repeat the above test with the DVD VIDEO PLAYER power plug reversed. NEVER RETURN A DVD VIDEO PLAYER TO TH
10、E CUSTOMER WITHOUT TAKING NECESSARY CORRECTIVE ACTION. READING SHOULD NOT EXCEED 0.3V DVD VIDEO PLAYER AC OUTLET AC VOLTMETER Test all exposed metal. Voltmeter Hook-up for Leakage Current Check 0.15uF 150V AC 1500 10W (5000 per volt or more sensitivity) Good earth ground such as a water pipe, condui
11、t, etc. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point
12、 within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 3.0 INSTRUCTION FOR USE PET830 3.0 INSTRUCTION FOR USE PET835 4.0 MECHANICAL INSTRUCTION Disassembly Procedure o
13、n PET830 Spare Parts 1 Remove five screws on back cabinet to separate top cabinet and back cabinet. (5pcs) 2 Generally open the front cabinet. 3 Disassemble FPC from turn board on top cabinet. 4 Disassemble connecter of speaker from main board. 4.0 MECHANICAL INSTRUCTION 5 After 3 and 4 procedures,
14、we will get top cabinet assembly and back cabinet assembly. 6 Remove three conductive fabrics. (3pcs) 7 Disassemble FPC of TFT- LCD from turn board. 4.0 MECHANICAL INSTRUCTION 8 Remove six screws on turn board and jogging board. Disassemble connecter of TFT-LCD from turn board. (6pcs) 9 Remove two s
15、crews on eject board. (2pcs) 10 Remove all PCB boards on top cabinet. Remove six screws on speaker, and then remove speaker. (6pcs) 4.0 MECHANICAL INSTRUCTION 11 Remove six screws and sponges on TFT-LCD. (6pcs) (6pcs) 12 Remove TFT-LCD and disassembly of top cabinet is ok. 13 Remove four screws on d
16、river and FFC of driver from main board. (4pcs) 14 Remove top keypad board from back cabinet, and disassemble FFC from main board. 4.0 MECHANICAL INSTRUCTION 15 Remove four screws on main board. (4pcs) 16 Remove six screws on plate metal EMI. (6pcs) 17 Remove two screws on PCB of battery. (2pcs) 18
17、Use tool to remove battery from back cabinet. 4.0 MECHANICAL INSTRUCTION 19 Finally, we will get the back cabinet. 5.0 TROUBLESHOOTING SYMPTOM: BATTERY NO POWER Start Check Battery capacity ? BATTERY CANT Power ON Check charging function OK? SET OK? No Defect, return set to Customer Check adaptor po
18、wer-ON OK? no Check the Power-ON button and cable OK? Replace Main Board Replace Button or Cable yes Yes NO No Yes Yes No 5.0 TROUBLESHOOTING SYMPTOM: NO IMAGE / NO SOUND SYMPTOM: NO IMAGE OUTPUT ( THE PANEL SHOW BLUE PICTURE ) Start Check the external AV Cable TYPEnote and connection is OK? Replace
19、 DVD DriveCheck DVD Drive work ? Replace Main Board Exchange AV cable NOTE: AV Cable TYPE from outside to Inside L-Audio, R-Audio, Video, Ground no yes no yes SYMPTOM: NO SOUND COMES FROM SPEAKER Start Check the Connection OK?Reinsertion Check speaker OK? Replace Main Board Change the speaker no yes
20、 no yes 5.0 TROUBLESHOOTING SYMPTOM: THE DVD DRIVE DOES NOT WORK SYMPTOM: THE DVD DRIVE DOESN T WORK Start Replace DVD- Loader Check the DVD-Loader OK? Replace main board NO Yes Yes Cable ReinsertionNO Check DVD-Loader connection OK? 5.0 TROUBLESHOOTING SYMPTOM: ADAPTOR CANNOT POWER ON Start Check A
21、daptor OK? Adaptor can not Power ON Change adaptorSET OK? Return set to Customer NO Check the Power-ON button and cable OK? Replace Main Board Replace Button or Cable Yes NO Yes No YES OK 5.0 TROUBLESHOOTING SYMPTOM: REMOTE CONTROL CANNOT WORK SYMPTOM: THE REMOTE CONTROL CAN NOT WORK Start Check TOP
22、-board OK? Replace main board Yes Yes Cable ReinsertionNO Check CABLE form bottom board to top board connection OK? Replace IR receiver Return to custormer OK OK Replace top boardNONO OK 5.0 TROUBLESHOOTING SYMPTOM: USB CANNOT WORK SYMPTOM: THE USB DOESN T WORK Start Add external adaptor on USB Or C
23、hange another USB Check the external USB power consumption ? Replace main board Over spec Yes Yes USB ReinsertionNO Check USB INSERTION OK? PET830 USB current limit Is 500mA SYMPTOM: NO SOUND FROM HEADPHONE 5.0 TROUBLESHOOTING SYMPTOM: LED DISPLAY FAILURE SYMPTOM: LED Display Fail Start Check TOP-bo
24、ard OK? Replace main board NO Yes Yes Cable ReinsertionNO Check CABLE form Main board to top board connection OK? Replace LED Return to custormerOK Replace top boardNO OK OK 5.0 TROUBLESHOOTING SYMPTOM: KEY & BOTTON FAILURE SYMPTOM: Key & Botton Fail Start Check KEY board OK ? Replace main board NO
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Philips-PET-835-Service-Manual1 电路图 维修手册 Philips PET 835 Service Manual 维修 手册
收音机爱好者资料库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。



Marshall-9100-62-02-Schematic电路原理图.pdf


