Philips-LX-7000-SA-Service-Manual电路原理图.pdf

GBCLASS 1LASER PRODUCTCOMPACTDIGITAL AUDIOService ManualServiceServiceServiceLX7000SA/22S für Reparaturen sind Original-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.“After servicing and before returning set to customer perform aleakage current measurement test from all exposed metal parts toearth ground to assure no shock hazard exist. The leakage currentmust not exceed 0.5mA.“CLASS 1LASER PRODUCT3122 110 03420GB Warning !Invisible laser radiation when open.Avoid direct exposure to beam.S Varning !Osynlig laserstrålning när apparaten är öppnad och spärrenär urkopplad. Betrakta ej strålen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinanäkymättömälle laserisäteilylle. Älä katso säteeseen!DK Advarse !Usynlig laserstråling ved åbning når sikkerhedsafbrydere erude af funktion. Undgå udsaettelse for stråling.1-6DISMANTLING INSTRUCTIONSDismantling of the Tuner Board and Main Board and AVC BoardFigure 31) Loosen 6 screws A to remove the Cover Top (pos 260).- 2 screws each on the left & right side (see Figure 1)- 2 screws on the rear (see Figure 2)- See Service position A2-1 2-1Figure 4Figure 2Figure 13) Remove the Bracket PCB Mains (pos 259) by pressingthe catch C1 inward and slide it up in the direction asshown in Figure 3.Dismantling of the Tuner Board and Main Board and AVC Board5) Remove 2 screws G (see Figure 4) to loosen the BracketAV PCB (pos 255).4) Remove 1 screw C (see Figure 2) and uncatch 2 catchesC2 (see Figure 4) to loosen the Main Board (pos 1104-B).- See Service position B6) Remove 6 screws E and 2 screws F (see Figure 2) toloosen the Plate Rear (pos 251) and AVC Board (pos1102).- See Service position D2) Remove 3 screws B and uncatch 2 catches B1 (see Figure2) to loosen the Tuner Board (pos 1101).2-2 2-21) Use a Flat Head screw driver to give a push in thedirection as shown in Figure 9 to unlock the DVD Traybefore sliding it out.DISMANTLING INSTRUCTIONSDismantling of the Supply Board and Power Amplifier Board2) Slide out the DVD Tray and remove the Cover Tray DVD(pos 105) as shown in Figure 10.3) Slide out the DVD Tray fully and remove 6 screws J (seeFigure 11) to loosen the DVD Module (pos 1109).- See Service position E1) Remove 7 screws D to loosen the Supply Board (pos1104-A) and Power Amplifier Board (pos 1103).- 2 screws on the Plate Rear (see Figure 2)- 5 screws on the Plate Bottom (see Figure 5, 6, 7 & 8)- See Service position CFigure 6Figure 8Figure 7Figure 9Figure 10Figure 11Dismantling of the DVD ModuleFigure 52-3 2-3Repair Hints1) Remove 7 screws H (see Figure 12 and Figure 13) anduncatch 2 catches H1 (see Figure 13) to loosen the FrontPanel Assembly from the set.- 4 screws on top of the Front Panel Assembly- 3 screws and 2 catches H1 at the bottom of the FrontPanel Assembly- See Service position FDISMANTLING INSTRUCTIONSDismantling of the Key & Control Boards2) Make sure to unplug the cable (if obstructed) beforeseparate the Front Panel Assembly from the set (seeFigure 14).Figure 12Figure 13Figure 141) During repair it is possible to disconnect the ECO6 TunerBoard completely unless the fault is suspected to be inthat area. This will not affect the performance of the restof the set.Dismantling of the Front Panel AssemblyFigure 15Figure 161) Remove 1 screw K (see Figure 15) to loosen theHeadphone Board (pos 1105-D).2) Remove 6 screws L (see Figure 15) to loosen theVolume& IR Board (pos 1105-C).3) Remove 2 screws M (see Figure 16) to loosen the PowerOn/Off Board (pos 1105-A).4) Remove 2 screws N (see Figure 16) to loosen theBracket LED SACD (pos 109) and SACD LED Board(pos 1105-B).5) Remove 3 screws P (for LX8000SA 2 screws only) anduncatch 2 catches P1 (see Figure 16) to loosen the TopKey Board (pos 1105-E).2) The flex cables are very fragile, care should be taken notto damage them during repair. After repair, be very surethat the flex cables are inserted properly into the flexsockets before encasing, otherwise faults may occurs.2-4 2-4Service position AService position CService position BUse a insulation sheet toprevent any damaged orshort-circuit of the boards.Service position DService position FService position EUse a insulation sheet toprevent any damaged orshort-circuit of the boards.DISMANTLING INSTRUCTIONS