Philips-FWM-777-Service-Manual电路原理图.pdf

GBCLASS 1LASER PRODUCTCOMPACTDIGITAL AUDIOService ManualServiceServiceServiceFW-M777/21/22TABLE OF CONTENTSPageLocation of pc boards für Reparaturen sind Original-Ersatzteile zu verwenden.Sicherheitsbauteile sind durch das Symbol !markiert.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.Componenty di sicurezza sono marcati con !GBAfter servicing and before returning set to customer perform a leakagecurrent measurement test from all exposed metal parts to earth ground toassure no shock hazard exist. The leakage current must not exceed0.5mA.DISMANTLING INSTRUCTIONSDismantling of the 5DTC Module1) Loosen 4 screws to remove the Cover Top (pos 255) bysliding it out towards the rear before lifting up.- 2 screws on the rear- 1 screw each on the left & right side2) Loosen 3 screws each to remove the Panel Left (pos 253)and Panel Right (pos 254). The Panels are removed bysliding it towards the rear and outwards.- 2 screws on the rear- 1 screw on the side1) Remove 2 screws B (pos 226) as shown in Figure 5 fromthe bottom of the Cabinet Front (pos 101).Detaching the Front Panel assembly from the Bottom/Rear assembly2-1 2-1Figure 1Figure 3Figure 2Figure 43) To loosen the Panel Front Display (pos 120), you have topress in the correct direction and position as shown inFigure 1 and Figure 2. Once the Panel Front Display isloosen, remove it out in the direction as shown in Figure 3.4) Loosen 4 screws A (see Figure 4 and Figure 16) to removethe 5DTC Module (pos 1105).- 2 screws on the front- 2 screws on the rearNote : For information on the 'Emergency opening of thetrays' of the 5DTC Module, refer to Chapter 10(Page 10-7).Figure 52) Release the fixation of the AF Board (pos1102-A) toBracket CDC Right (pos 186) by releasing the 2 catchesC1 (see Figure 7) and pulling the AF Board outwards asshown in Figure 6.3) Uncatch 2 catches C2 (see Figure 7) on the left & rightsides of the Cabinet Front (pos 101) and slides the FrontPanel assembly out towards the front.Figure 6Figure 72-2 2-2Dismantling of the Front Control Board and Front Display Board1) The Knob Volume Rotary (pos 164) can be remove bypulling it out in the direction as shown in Figure 8.2) The Knob Game Sound Control (pos 176) can be removeby pulling it out in the direction as shown in Figure 9.DISMANTLING INSTRUCTIONS3) Loosen 4 screws D (see Figure 11) to remove the BracketPCB Front Display (pos 183) and Front Display Board(pos 1101-A).4) Loosen 1 screw E (see Figure 12) to remove the IR EyeBoard (pos 1107-H).5) Loosen 2 screws F (see Figure 12) to remove the ECOPower Board (pos 1107-E).6) Loosen 3 screws G (see Figure 12) to remove theBracket VU Meter 2 (pos 136) and loosen 2 screws H toremove the VU Meter Right Board (pos 1107-D) from theBracket VU Meter 2.7) Loosen 3 screws J (see Figure 12) to remove the BracketVU Meter 1 (pos 129) and loosen 2 screws K to removethe VU Meter Left Board (pos 1107-C) from the BracketVU Meter 1.8) Loosen 2 screws L (see Figure 13) to remove the USB PCLINK Board (pos 1104).9) Loosen 9 screws M (see Figure 13) and loosen the 2 nuts(see Figure 10) to remove the Front Control Board (pos1107-A).10)Loosen 1 screw N (see Figure 13) to remove theHeadphone Board (pos 1107-B).Dismantling of the Front Control Board and Front Display Board11) Loosen 3 screws P (see Figure 14) to remove the GamePort Board (pos 1107-G).12)Loosen 2 screws Q (see Figure 15) to remove the USBLED Board (pos 1107-F).Figure 10Figure 9Figure 8Figure 11 Figure 15Figure 14Figure 13Figure 122-3 2-3Repair Hints1) During repair it is possible to disconnect the ECO6 Tunerboard and/or 5DTC Module completely unless the fault issuspected to be in that area. This will not affect theperformance of the rest of the set.Dismantling of the Rear Panel assembly1) Loosen 3 screws S and 2 catches C4 (see Figure 16) toremove the Tuner Board assembly.2) Loosen 2 screws T (see Figure 16) to free the AF Board(pos 1102-A).3) Loosen 1 screw U (see Figure 16) to remove the VideoCinch Out Board (pos 1102-B).4) Loosen 1 screw V (see Figure 16) to free the MainsSocket Board (pos 1106-1001-B).DISMANTLING INSTRUCTIONSNote: The flex cables are very fragile, care should be takennot to damage them during repair. After repair, bevery sure that the flex cables are inserted properlyinto the flex sockets before encasing, otherwise faultsmay occurs.5) Loosen 4 screws W (see Figure 16) and 2 catches C3(see Figure 7) to remove the Panel Rear (pos 256) bysliding it out towards the rear (see Figure 19).Note : Tuner Board assembly and Mains Socket Boardcan also be remove together with the Panel Rear.6) Loosen 2 screws Y (see Figure 17) and 2 catches C5 (seeFigure 16) to remove the Bracket Fan (pos 266).7) Loosen 4 screws Z (see Figure 18) to remove the Fan(pos 1121) from the Bracket Fan (pos 266).Figure 16Figure 17Dismantling of the Rear Panel assemblyFigure 18Figure 19Service position A Service position BService position C2-4 2-4DISMANTLING INSTRUCTIONS