Philips-MC-500-Service-Manual电路原理图.pdf

GBCLASS 1LASER PRODUCTCOMPACTDIGITAL AUDIOService ManualServiceServiceServiceMC-500/22/25/30/37TABLE OF CONTENTSPageLocation of pc boards 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.1-6Figure 1DISMANTLING INSTRUCTIONS2-1 2-1Dismantling of the 5DTC Module1) Loosen 4 screws and 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 remove bysliding it towards the rear and outwards.- 1 screw on the side- 2 screws on the rear3) Take a paper clip or any stiff wire diameter of 1mm-1.5mm.Place the set in position and insert the paper clip or stiffwire as shown in Figure 1.1) Remove 2 screws B (pos 282) as shown in Figure 4 fromthe bottom of the Cabinet Front (pos 101).2) Release the fixation of the Combi Board (pos 1102-1003)to Bracket Combi (pos 252) by releasing the 2 catches C1(see Figure 5) and pulling the Combi Board outwards asshown in Figure 6.3) Uncatch 2 catches C2 (see Figure 5) on the left & rightsides of the Cabinet Front (pos 101) and slides the FrontPanel assembly out towards the front.Detaching the Front Panel assembly from the Bottom/Rear assembly4) To remove the Cover CD Orn (pos 111), you have to feeland give a push in the correct direction (see Figure 1) andcorrect position (see Figure 2) to release the catch of theCover CD Orn before removing it out.5) Loosen 4 screws A (see Figure 3 and Figure 9) to removethe 5DTC Module (pos 1103).- 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 2Figure 5Figure 4Figure 3Figure 62-2 2-2Dismantling of the Front Panel assembly1) The Knob Volume (pos 136) can be remove by pulling it outin the direction as shown in Figure 7.2) Loosen 4 screws D (see Figure 8) to remove the BracketTop (pos 251) and CDC Key Board (pos 1105B).3) Loosen 2 screws E (see Figure 8) to remove the BracketCombi (pos 252).4) Loosen 9 screws F (see Figure 8) to remove the FrontBoard (pos 1105A).5) Loosen 3 screws G (see Figure 8) to remove the USB PCLINK Board (pos 1106).Dismantling of the Rear Panel assembly1) Loosen 3 screws H and 2 catches C3 (see Figure 9)to remove the Tuner Board assembly.2) Loosen 1 screw K (see Figure 9) to free the MainsSocket Board (pos 1102-1001B).3) Loosen 4 screws J and 2 catches C4 (see Figure 9)to remove the Cabinet Rear (pos 256) by sliding itout towards the rear (see Figuer 10).Note : Tuner Board assembly and Mains SocketBoard can also be remove together with theCabinet Rear.4) Loosen 4 screws L (see Figure 9) to remove the Fan(pos 1104) from the Cabinet Rear.Figure 7Figure 8DISMANTLING INSTRUCTIONSFigure 9Figure 102-3 2-3Repair Hints & Service Positions1) 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.Note: 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.Service position BService position CService position ADISMANTLING INSTRUCTIONSYNYNNPLAYButton pressed?PLAYButton pressed?PLAYButton pressed?ADCTESTDisplay shows “ADC1 Value“for ADC 1(Input Line - SA)Display shows “ADC2 Value“for ADC 2(Input Line - Option)YYN9Button pressed?ADC Test is used for checking theADC inputs to the microprocessor.The display shows an ADC valuebetween 0 and 255 for an inputsignal between 0 and 5V.Display shows “ADC3 Value“for ADC 3(Input Line - AmNtc)CDButton pressed?YN5DTC CONTROL &MP3 CD MODULETEST(For MC-M570 only)STEP12*3*4*5*6*7DISPLAYMESSAGE-BUS OK-FOC OK5DTC-ER-BUS ER-FOC ERACTIONVersion of the 5DTC control software (nn = Version Number).Indicates the module used.Version of the MPEG software (nn = Version Number).Communication test between the Main uP and CD ModuleCD SLEDGE MOTOR is moved in.CD SLEDGE MOTOR is moved out.FOCUS SERVO Test.Press 9 to exitOKAY ERROR5DTC-VnnMP3CD02TI-VnnTI BUSTI SLD ITI SLD OTI FOC* Chooselevelby pressingR R Note : Disc should be available on the tray before entering the Service Test Mode.Table 2Error codeE1000E1001E1002E1003E1005E1006E1007E1008E1020E1061E1079Error DescriptionFocus ErrorTriggered when the focus cannot be found within a certain time when starting up the CD, or if the focusis lost for more than a certain time during playing of CD.Radial ErrorTriggered when the radial servo is off-track for a certain time during playing of CD.Sledge In ErrorThe sledge did not reach its inner position (inner-switch is still close) before approximately 6 secondshave passed by. Inner-switch or sledge motor problem.Sledge Out ErrorThe sledge did not come out of its inner position (inner-switch is still open) before approximately 250mshave passed by. Inner-switch or sledge motor problem.Jump ErrorTriggered in normal play when the jump destination could not be found within a certain time.Subcode ErrorTriggered when a new subcode was missing for a certain time during playing of CD.PLL ErrorThe Phase Lock Loop could not lock within a certain time.Turntable Motor ErrorGenerated when the CD could not reached 75% of speed during start-up within a certain time. Discmotor problem.Focus Search ErrorThe focus point has not been found within a certain time.The tray could not enter the inside position and is opening again. This can happen if the tray is blockedsuch that it cannot go fully inside, or if the 5DTC control module is defective and never closes.The tray could not reach the outside position and is stopped at its blocked position. This can happen ifthe tray is blocked such that it cannot go fully outside, or if the 5DTC control module is defective andnever opens.ECOButton pressed?YNSet is in Service PLAY ModeCDButton pressed?YNThe Service Play Mode is intendedto detect and identify the failuresin the CD Mode.In this mode the DTC works as innormal operation. The electronicswill still function even when an erroris detected so that repair activitiescan be carried out.SERVICE PLAY MODE(For MC-500 only)DTC works as in normal operation.In case of failures, errorcodes according to Table 2 will be displayed.Display shows “5DTC-Vnn“ - Version of 5DTC control software(nn = Version Number).Variousother TestsActivated with ACTIONTESTQEEPROM FORMATTESTLoad default data. Display shows “NEW“ for 1 second.Caution! All presets from the customer will be lost!Disconnectmains cordLEAVE SERVICETEST PROGRAMR 9 to ExitEEPROM TEST A test pattern will be sent to the EEPROM.“PASS“ is displayed if the uProcessor read back the test patterncorrectly, otherwise “FAIL“ will be displayed.Rotary VolumeKnobROTARYENCODER TESTDisplay shows value for 2 seconds.Values increases or decreases until Volume Maximum (0dB) orVolume Minimum (VOL MUTE) is reached.USB PC LINK9 to ExitMICRONASFIRMWAREVERSIONTo read out the Firmware Version of IC UAC3553 on the USBPC LINK Board.Display shows “Vxxxx“ (xxxx = Firmware Version number).MAX SOUNDDEMO TOGGLE Pressing this button will toggle between DEMO ON and DEMOOFF. The DEMO status will scroll once across the Display.OButton pressed?YYYNNNOButton pressed?9Button pressed?Display shows12MOutput at (Front Board)pin 19 of uP = 2,929.6875HzDisplay shows32KOutput at (Front Board) pin 19 of uP = 2048HzQUARTZTESTTUNERButton pressed?DisconnectMains cord ?YNNYDisplay Tuner Version “ccc“Service frequencies arecopied to the RAM (see Table 1)Tuner works normally except:PROGRAM buttonService Mode leftTUNERTESTTUNERButton pressed?NPRESET1234567891011Europe“EUR“87.5MHz108MHz531kHz1602kHz558kHz1494kHz87.5MHz87.5MHz87.5MHz87.5MHz98MHzEast Europe“EAS“87.5MHz108MHz531kHz1602kHz558kHz1494kHz87.5MHz87.5MHz87.5MHz87.5MHz98MHzUSA“USA“87.5MHz108MHz530kHz1700kHz560kHz1500kHz98MHz87.5MHz87.5MHz87.5MHz87.5MHzOversea“OSE“87.5MHz108MHz531/530kHz*1602/1700kHz*558/560kHz*1494/1500kHz*87.5/98MHz*87.5MHz87.5MHz87.5MHz98/87.5MHz*Table 1East Eur. Extended-band“EAS“65.81MHz108MHz74MHz87.5MHz531kHz1602kHz558kHz1494kHz98MHz70.01MHz65.81MHzNote: * Depending on the selected grid frequency (9 or 10kHz).By holding the PROG and R buttons depressed while switching on the Mains supply, oneof the undermentioned features will be activated:- the tuning grid frequency is toggled between 9kHz and 10kHz for the Oversea (/21) version.- the extended FM1 (65.81MHz - 74MHz) is toggled on and off for East Eur. (/34) version.YNYNYNVECButton pressed?VECButton pressed?9Button pressed?DISPLAYTESTDisplay shows Figure 1and switch all LEDs on(except ECO POWER LED)Display shows Figure 2and switch alternate LEDs on(see Table 3)LEDsCDTUNERAUXUSB PC LINKMAX SOUNDUSB IndicatorMC-M570OFFONOFFONOFFONMC-500-OFFONTable 3Figure 1 Figure 2To start service test programhold & PROGdepressed whileplugging in the mains cordDisplay shows theROM version “S-Vyy“(Main menu)S refers to Service ModeV refers to Versionyy refers to Software version number of the uProcessor(counting up from 01 to 99)SERVICE TEST PROGRAMMicro 2003_MC-500 & MC-M570_Service Test Program (dd wk0242)3-1 3-1