Philips-PET-7432-Service-Manual(1) 电路图 维修手册.pdf
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1、DVD Portable Player PET7432/05/12 Published by BG AVM BL Printed in the Netherlands Subject to modification 3141 785 33731 Version 1.1 TABLE OF CONTENTS Chapter Technical Specification fr Reparaturen sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimes
2、so nelle condizioni originali e che siano utilizzati i pezzi di 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 mu
3、st not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110 03420 GBWarning ! 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
4、 olet alttiina nkymttmlle laseristeilylle. l katso steeseen! DKAdvarse ! 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 m
5、ay?be?received. 2.1 ESD PROTECTION PREPARATION?OF?SERVICING Pickup?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.?Wh
6、en?replacing,?use?a?conductive?mat,?soldering?iron?with?ground?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?resista
7、nce between?the?ground?line and?the?ground?is?less?than?10 1M 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
8、 AC capacitor between a knomn good earth ground (water pipe, conduit, 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
9、test must be conducted with the AC switch on and then repeated 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 PLA
10、YER power plug reversed. NEVER RETURN A DVD VIDEO PLAYER TO THE 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 mo
11、re sensitivity) Good earth ground such as a water pipe, conduit, 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 constit
12、ute a risk of electric shock to persons. The exclamation point 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 Disassembly Procedure on P
13、ET7432 Remove seven screws on back cabinet to separate top cabinet and back cabinet. screws 7pcs Generally open the front cabinet. screws 3pcs 4.0 MECHANICAL INSTRUCTION Remove three screws and disassemble the connecter on the Main board and DVD loader. Remove two screws on the battery and battery b
14、oard. Remove the 7pcs screws on top cover . Remove the 4pcs screws and connecter on the TFT and IR board. 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 DVD DriveCheck D
15、VD 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 no yes 5.0 TROUBL
16、ESHOOTING SYMPTOM: THE DVD DRIVE DOES NOT WORK SYMPTOM: THE DVD DRIVE DOESNT 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 Adaptor OK? Adaptor
17、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: KEY & BOTTON FAILURE SYMPTOM: Key & Botton Fail Start Check KEY board OK? Replace main board NO Yes Ye
18、s Cable ReinsertionNO Check CABLE form board to board connection OK? Return to custormerOK Replace KEY board OK 5 5 4 4 3 3 2 2 1 1 DD CC BB AA EE 2N3906 1 2 B C 2N3904 B C 31 2 3 3 2 E 22 1B33 2CC 1 2N3904 13 BAV992N3906 BE1 CIRCUIT OF VIDEO&AUDIO AOUT_L AC +Vcc AOUT_R AV-OUT-L CVBS AV-OUT-R AOUT_R
19、 AOUT_L AV-OUT-R AV-OUT-L CVBS DC_IN VCC9 AC L_HP_IN R_HP_IN VCC9 R_HP_IN A_R_SPEAKER L_HP_IN A_L_SPEAKER SPL A_R_SPEAKER A_L_SPEAKER +Vcc SPR SPL SPR AOUT_R2 AOUT_L2 CVBS2 DC_IN1 SPR2 SPL2 VER VER DC_IN C111 820p C0402 R129 100K R0402 VJ1 VOLUME 10K VRS 1 2 3 4 5 1 2 3 4 5 C120 150P C0402 C114 0.1u
20、F/0603 C0603 C102100pF C0402 R12233K R0402 C115 150P C0402 R109 5.1K R0402 R123100K R0402 + EC34 EC100uF/16V 6.3/5 + EC33 EC10uF/16V 4/5 R121100K R0402 C122 0.1uF/0603 C0603 + EC25EC10uF/16V 4/5 C105 820p C0402 L30FB2K2/0603 R0603 R120 NC R0402 R130200R/0603 R0603 C118 0.1uF C0402 L29FB600R/0805 L-0
21、805 JACK1AV/OUT-JACK AV-JACK1 6 7 1 2 3 45 6 7 + EC30 EC22uF/25V 4/5 R131 10K R0402 C104 1000pF C0402 R10733K R0402 C117 0.1uF/0603 C0603 R1282R/0805 R0805 C113 0.1uF C0402 R135 10K R0402 L31FB2K2/0603 L-0603 R110360R R0402 R118360R R0402 VER1 earphone EARPHONE 1 2 34 5 6 7 8 9 10 11 R117 5.1KR0402
22、R11124K R0402 + EC28 EC22uF/25V 4/5 R136 4.7R R0402 R11924K R0402 L24 FB2K2/0603 L-0603 R1272R/0805 R0805 C106100pF C0402 R134 200R/0603 R0603 R13356K R0402 C116 0.1uF/0603 C0603 U9 APA2822 SOP8 1 2 3 4 5 6 7 8 + EC35 EC10uF/16V 4/5 + EC26 EC100uF/16V 6.3/5 R10810K R0402 C110 1000pF C0402 R13256K R0
23、402 +EC37 EC100uF/16V 6.3/5 C1091uF/0603 C0603 R125100K R0402 C112 0.1uF/0603 C0603 C119 0.1uF C0402 L32FB2K2/0603 L-0603 R115 75R 1% R0402 + EC36EC100uF/16V 6.3/5 R11433K R0402 + - U8A NJM4558-SOP-8 SOP8 3 2 1 84 C1031uF/0603 C0603 C107 100pF C0402 + EC31 EC100uF/16V 6.3/5 C121 0.1uF/0603 C0603 C10
24、8 100pF C0402 R124 39K R0402 + - U8B NJM4558-SOP-8 SOP8 5 6 7 84 L27FB2K2 R0402 R11610K R0402 R112 NC R0402 D11 IN4148 1N4148/SMD +EC29 EC47uF/16V 5/5 R113100K R0402 R137 4.7R R0402 R126 43K R0402 + EC32 EC100uF/16V 6.3/5 L28FB2K2 R0402 + EC27EC10uF/16V 4/5 L261.8uH/0805 L-0805 L25FB2K2 R0402 Q18230
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