Philips-PET-702-Service-Manual(1) 电路图 维修手册.pdf
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1、DVD Portable Player PET702 All version 3141 785 32054 Version 1.4 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 di ricam
2、bio 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 GBWarning !
3、 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! DKAdvars
4、e ! 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 Pickup?He
5、ad?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?wire,e
6、tc.?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 SAFTY N
7、OTICE 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, conduit,
8、 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 with t
9、he 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 THE CUSTO
10、MER 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, conduit, etc.
11、 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 within
12、 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 4.0 MECHANICAL INSTRUCTION 1. Remove 8pcs of screws on the side of bottom cabinet. 2. up-plug a
13、ll the wire connecter from main board, The wire connectors are for: DVD loader, battery board and TFT driver board, and speaker. 3. up-plug the FFC from DVD driver, then you can take out the DVD Driver. Remove all the screws on the main board, then take the main board from bottom cabinet. 4. Remove
14、the flex cable on the bottom side. 5. Remove all the screws on the buttery board, then take out the buttery with buttery board. 4.0 MECHANICAL INSTRUCTION 6. Remove 6pcs screws from key board. 7. Remove 6pcs of screws on the display frame. Carefully open the display frame with the catches by screwdr
15、iver.( There are six catches as shown in the pictures) Then you can see next picture. 8. To remove the TFT, de-soldering the wire connected between TFT and TFT board first. (Please note the wire location as shown in picture during re-assembly) And up pulg wire connecter from TFT board and TFT driver
16、. Take out the TFT board from cabinet using eradicator. 9. To remove the hinge, remove the screws on the hinge. 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 power-
17、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 DVD
18、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 no ye
19、s 5.0 TROUBLESHOOTING 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
20、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-board
21、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: NO SOUND FROM HEADPHONE 5.0 TROUBLESHOOTING SYMPTOM: LED DISPLAY FAILURE SYMPTOM: LED Displ
22、ay Fail Start Check TOP-board 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 O
23、K? Replace main board NO Yes Yes Cable ReinsertionNO Check CABLE form board to board connection OK? Return to custormerOK Replace KEY board OK 6.0 BLOCK DIAGRAM 5 5 4 4 3 3 2 2 1 1 DD CC BB AA 请尽量将Convertor电路远离主电源和VCOM电路请尽量将Convertor电路远离主电源和VCOM电路 +15V -12V Panel Gate Driver Power Vdc Vdc BJT Amplif
24、ier for T-CON I/F Vdc 89P VCOM DAC OUTPUT VCOM DAC OP POWER 25 6 23 GND STHL 10 GND SOE VGH MOD GOE 9 CPH2 CLK VCOM 19 3 20 VR 11 4 26 U/D STVR 22 24 1 L/R 16 VGL 7 17 AVDD 13 STVL Bottom Socket 8 VB 21 LG&PHILIPS LT070W02 STHR 15 AVSS VG CPH1 2 14 18 7 PANEL CPH3 5 VCOM 12 VCC VCC D 11Monday, May 0
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