Philips-LX-8500-W-Service-Manual电路原理图.pdf

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1、CLASS 1LASER PRODUCTService ManualServiceServiceServiceLX8500W/01/04/69/93TABLE OF CONTENTSPageLocation of pc boards fr Reparaturen sind Original-Ersatzteile zu verwenden.Sicherheitsbauteile sind durch das Symbol !markiert.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni

2、 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. T

3、he leakage current must not exceed0.5mA.2-1 2-1DISMANTLING INSTRUCTIONSDismantling of the DVD Loader1) The tray can be manually open by inserting a minusscrew driver and push the lever in the direction as shownin Figure 1 to unlock the tray before sliding it out.2) Slide out the tray and remove the

4、Cover Tray (pos 110)as shown in Figure 2.3) Loosen 2 screws each to remove the Panel Cover Left(pos 231) and Panel Cover Right (pos 232).1) Loosen 4 screws C (see Figure 3) to remove the BracketSupport Control (pos 130) and the Front Key Board (pos1401).Dismantling of the Front Key BoardFigure 3Figu

5、re 6Figure 4Figure 2Figure 12) Loosen 6 screws D (see Figure 4) to remove the FrontKey Board (pos 1401) from the Bracket Support Control(pos 130).1) Loosen 2 screws A (see Figure 5) to remove the TunerModule (pos 1801).2) Loosen 9 screws B (see Figure 5) and 2 scews H (seeFigure 6) to remove the AV

6、Board (pos 1501).Dismantling of the Tuner Module, AV Board, Front Board and SD6.3 ST AV2 Board3) Loosen 2 screws E (see Figure 6) to remove the FrontBoard (pos 1201).4) Loosen 2 screws F (see Figure 6) to remove the SD6.3ST AV2 Board (1601).Figure 54) Loosen 3 screws to remove the Front Top (pos 240

7、).- 1 screw each on the left & right side (pos 272)- 1 screw at the bottom (pos 268)5) Loosen 4 screws G (see Figure 6) to remove the DVDLoader (pos 1602).2-2 2-2SERVICE POSITIONSSD6.3 ST AV2 BoardDVD Loader Thick Insulation Sheet Front Key BoardThick Insulation SheetAV Board3-1Variousother TestsAct

8、ivated with ACTIONTESTSS to ExitEEPROM FORMATTESTLoad default data. Display shows “NEW“.Caution!All presets from the customer will be lost!Disconnectmains cordLEAVE SERVICETEST PROGRAMVolumeKnobROTARYENCODER TESTDisplay shows value for 2 seconds.Volume values increases or decreases in steps of 1unti

9、l 0 (VOL MIN) or 40 (VOL MAX) is reached.YNYNNBIIButton pressed?BIIButton pressed?DISPLAYTESTDisplay shows Figure 1and switch “SACD“ LED onDisplay shows Figure 2and switch “SACD“ LED offY9Button pressed?Figure 1Figure 2To start service test programhold BII and buttons depressed whileplugging in the

10、mains cordDisplay shows“SERVICE“followed by ROM version “S-Vxx-yy“S refers to Service ModeV refers to Versionxx refers to Software version number of BEA(counting up from 01 to 99)yy refers to Software version number of Front uP(counting up from 01 to 99)SERVICE TEST PROGRAMLX8300SA & LX8320SA & LX85

11、00W_Service Test Program_dd wk0429MAIN MENUHold BII and buttons depressed till the Display shown “S-Vxx-yy“S S 3-2Reprogramming of DVD version MatrixAfter repair, the customer setting and region code may belost. Reprogramming will put the set back in the state inwhich it has left the factory, ie. wi

12、th the default setting andthe allowed region code.Model Region Region Code TV TypeLX8300SA/01 Europe 2 PALLX8300SA/05 Europe 2 PALLX8320SA/69 AP 3 PALLX8300SA/04 Russia 5 PALLX8320SA/93 China 6 PALLX8500W/01 Europe 2 PALLX8500W/04 Russia 5 PALLX8500W/69 AP 3 PALLX8500W/93 China 6 PALTo reprogram do

13、as follows:1) Power up the set and select DISC source.2) Open tray by press “OPEN/CLOSE“ button on the setor press and hold “STOP“ button on the RC.3) Press the following buttons on the Remote Control:. for LX8300SA/01. for LX8300SA/05. for LX8320SA/69. for LX8300SA/04. for LX8320SA/93.for LX8500W/0

14、1.for LX8500W/04.for LX8500W/69.for LX8500W/934) The display shows YYYY-ZZ and the tray will close.YYYY = model number (eg. 8300, 8500, etc.)ZZ = slash stroke version (eg. 01, 69, etc.)Procedure for check Software version1) Power up the set and select DISC source.2) Open tray by press “OPEN/CLOSE“ b

15、utton on the setor press and hold “STOP“ button on the RC.3) Press “DISPLAY“ button on the Remote control.4) The TV screen will shows:SD6.3 Vxx YYYY-ZZ A BBSERVO: nnnnnnnn REG:Axx = version numberYYYY = model number (eg. 8300, 8500, etc.)ZZ = slash stroke version (eg. 01, 69, etc.)A = region codeBB

16、= Front uP software version numbernnnnnnnn = servo version numberProcedure to upgrade software1) Power up the set and select DISC source.2) Open tray by press “OPEN/CLOSE“ button on the setor press and hold “STOP“ button on the RC.3) Place upgrade CD-ROM onto tray and close.4) The set will response

17、and display the following:- LOAD After the disc is read, the tray will open foryou to remove the disc- ERASE Erasing disc- WRITE Writing disc- ERROR if upgrade is unsuccessful- UPG END if upgrade is successful- DISC-CLOSE-LOAD Tray will close indicating thatthe upgrade process is completed5) The who

18、le process should not take more than 5minutes.Caution: Do not unplug the set until upgrade is completed.Trade ModeTrade mode is a feature that will block all set keys whenenabled. It is for dealers to prevent customers fromremoving disc, changing source etc using the set keys.Rotary and Remote Contr

19、ol (RC) keys are still allowed inTrade mode.To activate Trade Mode:1) Power up the set and select DISC source.2) Open tray by press “OPEN/CLOSE“ button on the setor press and hold “STOP“ button on the RC.3) Then press buttons on the RC.4) The display shows TRA ON and the tray will close.Trade Mode i

20、s now enabled.To deactivate Trade Mode:1) Power up the set and select DISC source.2) Open tray by press and hold “STOP“button on the RC.3) Then press buttons on the RC.4) The display shows TRA OFF and the tray will close.Trade Mode is now disabled.Procedure to change Tuner Grid (not for all versions

21、)1) By holding “SOURCE“ and “PREV“ buttons depressedwhile switching on the mains supply, the tuning gridfrequency is toggled between 9kHz and 10kHz.2) Hold the “SOURCE“ and “PREV“ buttons depresseduntil the display shown the new tuning grid GRID 9 orGRID 10.Note: Repeating the same action will toggle back to itsprevious tuning grid setting.