Philips-LX-2600-D-Service-Manual电路原理图.pdf

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1、CLASS 1LASER PRODUCTService ManualServiceServiceServiceTABLE OF CONTENTSPageLocation of pc boards fr 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

2、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 w

3、hen open.Avoid direct exposure to beam.S Varning !Osynlig laserstrlning nr apparaten r ppnad och sprrenr urkopplad. Betrakta ej strlen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinankymttmlle laseristeilylle. l katso steeseen!DK Advarse !Usynlig laserstrling ved bning

4、 nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.2-1 2-1DISMANTLING INSTRUCTIONSDismantling of the Front Panel assembly1) Open the Tray and remove the tray cover assembly andremove it as shown in figure 1.Note: The Tray can be manually open by inserting aminus screw driver (ap

5、proximately 9mm) and pushlever in the direction shown in figure 2.Dismantling of the Tuner Module, Loader Mechanism & Mono AV board1) Loosen 2 screws A (pos 281) to remove the Tuner Moduleas per figure 3.2) With the tray cover assembly already removed, loosen 4screws D (pos 278) to remove the Loader

6、 Mechanism asper figure 4.3) Loosen 2 screws C (pos 283 & 286) on the rear and 2screws G (see figure 3 and 4) to remove the Mono AVboard.1) Loosen 4 screws E (pos 280) and 1 catch C1 to removethe PSU board as per figure 4.2) Loosen 2 screws B (pos 281) to remove the SpeakerConnector board as per fig

7、ure 3.Remove the Speaker Connector board try to preventbeing block by Z as per figure 5.3) Loosen 4 screws F (pos 279) to remove the Amplifierboard as per figure 4.Dismantling of the PSU, Speaker Connector and Amplifier boards2) Loosen the 5 screws to dismantle the Top Cover- 2 screws on each side (

8、pos 293)- 3 screws on the Rear Panel (pos 288).3) Uncatch 4 catches C2 (2x on side & 2x on the bottom) toslide the Front Panel assembly as per figure 4.Figure 1Figure 2Figure 3Speaker ConnectorFigure 42-2 2-2Service positionsFigure 5Figure 6Figure 7Figure 8Speaker ConnectorThick Insulation sheet or

9、paperThick Insulation sheet or paperThick Insulation sheet or paperThick Insulation sheet or paperMono AV BoardFront KeyboardLoader Mechanism3-1Variousother TestsActivated with ACTIONTESTSEEPROM FORMATTESTLoad default data. Display shows “NEW“ for 1 second.Caution!All presets from the customer will

10、be lost!Disconnectmains cordLEAVE SERVICETEST PROGRAMSOURCE / VOLUMEKnobROTARYENCODER TESTDisplay shows value for 2 seconds.Values increases or decreases in steps of 1 until 0 (Min.) or 40 (Max.) is reached.Figure 2Figure 1YNYNNBIIButton pressed?BIIButton pressed?DISPLAYTESTDisplay shows Figure 1 Di

11、splay shows Figure 2Y9Button pressed?To start service test programhold S & SOURCEbuttons depressed andpress the STANDBY button*Display shows theROM version “S-Vyy“S refers to Service ModeV refers to Versionyy refers to Software version number of the uProcessor(counting up from 01 to 99)SERVICE TEST

12、PROGRAMMAIN MENU* Mains power to set must be onHold till the Display is shown - ignore last setting info on the display3-2Region code chage is done as follows:1) Power up the set and open tray in DVD mode.2) Press follow by buttons on the Remotecontrol.where x = numeric 1 to 6 denoting the regions b

13、elow:1 = USA2 = Europe3 = Asia Pacific4 = Australia, New Zealand, Latam5 = Russia, India6 = ChinaReprogramming of DVD version MatrixAfter repair of the Mono AV board the customer settingand region code may lost.Reprogramming will put the set back in the state in whichit has left the factory, ie. wit

14、h the default setting and theallowed region code.To reprogram do as follow:1) Put the set in Stop mode with tray open2) Press the following buttons on the Remote Control:. for LX2600D/ 97(Tuner - Non -Cenelac). for LX2610D/93(Tuner Non- -Cenelac)* Note: Please make sure the right tuner is used.Proce

15、dure for check Software version1) Power up the set and open tray in DVD mode.2) Press OSD button on the Remote control.3) The TV screen will shows:SERVO:nnnnnnnn REG:rLX3600D-yymmdd-Vxxwherennnnnnnn = servo version numberr = region numberyymmdd = software date in year, month, day formatxx = version

16、numberSSS = stroke version eg: / 97 or /93Procedure to upgrade software1) Power up the set and open tray in DVD mode.2) Place upgrade CD-ROM onto tray and close.3) The set will response and display the following:- LOAD After the disc is read, the tray will open for youto remove the disc- ERASE 0 - E

17、RASE F . - ERASE 0- WRITE F . - WRITE 0- UPG END only for a short moment, if unsuccessfulERROR is displayed- DISC- LOAD Tray will close indicating that the upgradeprocess is completed4) Unplug the set to disconnect the mains supply.5) The whole process should last for about 5 minutes.Remove the upgr

18、ade CD-ROM and unplug the Mainssupply.Procedure to change Tuner GridDuring the standby mode, hold the SOURCE and PLAYbuttons down and press the STANDBY button.The display will show the new tuning grid “GRID 9“ or“GRID 10“.Note: Repeating the same action will toggle back to itsprevious tuning grid setting.