Philips-LX-7100-SA-Service-Manual(1) 电路图 维修手册.pdf

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1、GB CLASS 1 LASER PRODUCT COMPACT DIGITAL AUDIO Service Manual Service ServiceService ServiceService LX7100SA/22 TABLE OF CONTENTS Page Location of pc boards fr Reparaturen sind Original-Ersatzteile zu verwenden. Sicherheitsbauteile sind durch das Symbol ! markiert. I Le norme di sicurezza esigono ch

2、e lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati. Componenty di sicurezza sono marcati con ! GB After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts

3、 to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. 1-7 Caution: This information is confidential and may not be distributed. Only a qualified service person should do the reprogramming. After replacement/repair, the customer settings and also the region code

4、 may be lost. Reprogramming will put the set back in the state in which it has left the factory, i.e. with the default settings and the allowed region code. Reprogramming will be done by way of the Remote Control. Complete version matrix to be enter is PLAY 159 XXX XXX XX PLAY. Do the following step

5、s with the Remote Control: 1)Ensure no disc is loaded in the tray. 2)Set the Remote Control to DISC source. 3)Press followed by numerical keys Remark: Top left hand corner of the TV screen will display X for all these 4 keys that you have pressed. 4)Press now the following numerical keys (8 digits v

6、ersion matrix): Remark: Nothing will be displayed on the TV screen for all these 8 digits that you have pressed. for LX7100SA/22: 5)Press again. Caution: Wait for about 3 seconds for the set to reset to the required setting. The TV screen will turn blue follow by a loud sound at the speaker output.

7、6)Disconnect mains to ensure proper reset. How to check the version matrix and the software version number of the set: 1)Power up the set and select DISC source. 2)Press on the Remote Control to enter the User Preference Manual (UPM), follow by pressing the following key: - key 4 times - key 1 time

8、- key 4 times 3)Message (C)PHILIPS 01- 02 5580 W.WW.WW . PXXXXXXXX Y.YY.Y will be displayed on the TV screen: W.WW.WW- indicate the BEA software version number PXXXXXXXX - indicate the version matrix programmed Y.YY.Y- indicate the FEA (servo) software version number 4)Press on the Remote control to

9、 exit. Reprogramming of DVD version matrix 1-8 1)Press on the Remote Control to enter the User Preference Manual (UPM). 2)From the User Preference Manual on the TV screen, select TV SYSTEM to change the TV system default accordingly as shown in the table below: VersionRegionTV system default /21RReg

10、ion 3AUTO /21SRegion 4NTSC /22 , /22SRegion 2PAL /30SRegion 4AUTO /33SRegion 3AUTO /37SRegion 1NTSC 3)Press on the Remote control to exit. Setting the TV system default DISMANTLING INSTRUCTIONS Dismantling of the Tuner Board and Main Board and AVC Board Figure 3 1) Loosen 6 screws A to remove the Co

11、ver 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 A 2-12-1 Figure 4 Figure 2 Figure 1 3) Remove the Bracket PCB Mains (pos 259) by pressing the catch C1 inward and slide it up in the direction as shown in Figure 3.

12、 Dismantling of the Tuner Board and Main Board and AVC Board 5) Remove 2 screws G (see Figure 4) to loosen the Bracket AV PCB (pos 255). 4) Remove 1 screw C (see Figure 2) and uncatch 2 catches C2 (see Figure 4) to loosen the Main Board (pos 1104-B). - See Service position B 6) Remove 6 screws E and

13、 2 screws F (see Figure 2) to loosen the Plate Rear (pos 251) and AVC Board (pos 1102). - See Service position D 2) Remove 3 screws B and uncatch 2 catches B1 (see Figure 2) to loosen the Tuner Board (pos 1101). 2-22-2 1) Use a Flat Head screw driver to give a push in the direction as shown in Figur

14、e 9 to unlock the DVD Tray before sliding it out. DISMANTLING INSTRUCTIONS Dismantling of the Supply Board and Power Amplifier Board 2) 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 (see Figure 11) to loose

15、n the DVD Module (pos 1109). - See Service position E 1) Remove 7 screws D to loosen the Supply Board (pos 1104-A) and Power Amplifier Board (pos 1103-1001). - 2 screws on the Plate Rear (see Figure 2) - 5 screws on the Plate Bottom (see Figure 5, 6, 7 & 8) - See Service position C Figure 6 Figure 8

16、 Figure 7 Figure 9 Figure 10 Figure 11 Dismantling of the DVD Module Figure 5 2-32-3 Repair Hints 1) Remove 7 screws H (see Figure 12 and Figure 13) and uncatch 2 catches H1 (see Figure 13) to loosen the Front Panel Assembly from the set. - 4 screws on top of the Front Panel Assembly - 3 screws and

17、2 catches H1 at the bottom of the Front Panel Assembly - See Service position F DISMANTLING INSTRUCTIONS Dismantling of the Key & Control Boards 2) Make sure to unplug the cable (if obstructed) before separate the Front Panel Assembly from the set (see Figure 14). Figure 12 Figure 13 Figure 14 1) Du

18、ring repair it is possible to disconnect the ECO6 Tuner Board completely unless the fault is suspected to be in that area. This will not affect the performance of the rest of the set. Dismantling of the Front Panel Assembly Figure 15 Figure 16 1) Remove 1 screw K (see Figure 15) to loosen the Headph

19、one Board (pos 1105-D). 2) Remove 6 screws L (see Figure 15) to loosen the Volume & IR Board (pos 1105-C). 3) Remove 2 screws M (see Figure 16) to loosen the Power On/Off Board (pos 1105-A). 4) Remove 2 screws N (see Figure 16) to loosen the Bracket LED SACD (pos 109) and SACD LED Board (pos 1105-B)

20、. 5) Remove 3 screws P (for LX8000SA 2 screws only) and uncatch 2 catches P1 (see Figure 16) to loosen the Top Key Board (pos 1105-E). 2) The flex cables are very fragile, care should be taken not to damage them during repair. After repair, be very sure that the flex cables are inserted properly int

21、o the flex sockets before encasing, otherwise faults may occurs. 2-42-4 Service position A Service position C Service position B Use a insulation sheet to prevent any damaged or short-circuit of the boards. Service position D Service position F Service position E Use a insulation sheet to prevent an

22、y damaged or short-circuit of the boards. DISMANTLING INSTRUCTIONS Various other Tests Activated withACTIONTEST SEEPROM FORMAT TEST Load default data. Display shows NEW for 1 second. Caution! All presets from the customer will be lost! Disconnect mains cord LEAVE SERVICE TEST PROGRAM T 9 to Exit EEP

23、ROM TESTA test pattern will be sent to the EEPROM. PASS is displayed if the uProcessor read back the test pattern correctly, otherwise FAIL will be displayed. CENTER - (RC) AUTO STANDBY TOGGLE Pressing this button will toggle between the status AUTO STANDBY ON and AUTO STANDBY OFF. The status will s

24、croll once across the Display. Rotary Volume Knob ROTARY ENCODER TEST Display shows value for 2 seconds. Values increases or decreases in steps of 1 until 0 (Volume Min.) or 40 (Volume Max.) is reached. Y N Y N N BII Button pressed? BII Button pressed? BII Button pressed? DISPLAY TEST Display shows

25、Figure 1 and switch all LEDs on (see Table 2 - Pattern 1) Display shows Figure 2 and switch alternate LEDs on (see Table 2 - Pattern 2) LEDs SACD STANDBY / ECO POWER LCD BACKLIGHT Pattern 1 ON GREEN ON Pattern 2 OFF RED ON Pattern 3 OFF OFF ON Table 2 Y Y N 9 Button pressed? Display shows Figure 3 a

26、nd switch all LEDs off (see Table 2 - Pattern 3) Figure 1 Figure 2Figure 3 Y N Y N N SOURCE Button pressed? SOURCE Button pressed? SOURCE Button pressed? ADC TEST Display shows ADC1 Value (Input Line - Key0) Display shows ADC2 Value (Input Line - Key1) Y Y N 9 Button pressed? ADC Test is used for ch

27、ecking the ADC inputs to the microprocessor. The display shows an ADC value between 0 and 255 for an input signal between 0 and 5V. Note : If the ADC value on the NTC line is below 69, the set will go to standby mode because the temperature is too high. Display shows ADC4 Value (Input Line - Option)

28、 N SOURCE Button pressed? Y Display shows ADC3 Value (Input Line - AmNTC) CLOCK/TIMER Button pressed? Y Y Y N N N CLOCK/TIMER Button pressed? 9 Button pressed? Display shows 32K Output on Quartz-Test-Pin pin 19 of uP = 2048Hz Display shows 12M Output on Quartz-Test-Pin pin 19 of uP = 2,929.6875Hz QU

29、ARTZ TEST PROG Button pressed? Disconnect Mains cord ? Y Y N N Y Display Tuner Version ccc Service frequencies are copied to the RAM (see Table 1) Tuner works normally except: PROGRAM button Service Mode left TUNER TEST PROG Button pressed? N PRESET 1 2 3 4 5 6 7 8 9 10 11 Europe EUR 87.5MHz 108MHz

30、531kHz 1602kHz 558kHz 1494kHz 87.5MHz 87.5MHz 87.5MHz 87.5MHz 98MHz USA USA 87.5MHz 108MHz 530kHz 1700kHz 560kHz 1500kHz 98MHz 87.5MHz 87.5MHz 87.5MHz 87.5MHz Oversea OSE 87.5MHz 108MHz 531/530kHz* 1602/1700kHz* 558/560kHz* 1494/1500kHz* 87.5/98MHz* 87.5MHz 87.5MHz 87.5MHz 98/87.5MHz* Note: * Depend

31、ing on the selected grid frequency (9 or 10kHz). By holding the SOURCE and PROG buttons depressed while switching on the Mains supply, the tuning grid frequency is toggled between 9kHz and 10kHz for the Oversea (/21) version. Table 1 To start service test program hold T & SOURCE depressed while plug

32、ging in the mains cord Display shows the ROM version S-Vyy (Main menu) S refers to Service Mode V refers to Version yy refers to Software version number of the uProcessor (counting up from 01 to 99) SERVICE TEST PROGRAM LX7000SA & LX8000SA_Service Test Program_dd wk0232 3-13-1 VOL - (RC) Button pres

33、sed? N DVD DEALER TEST STEP 1 2 3 4 5 6 ACTION Check the correctness of the checksum of the flash. S2B Echo Mode. (This test is executed very fast and hence user will not be able to see this display message) Check the correctness of the IIC bus to the NVRAM. (This test need about 3 minutes to perfor

34、m) Check writing to the NVRAM. Check writing to the SDRAM. (This test is executed very fast and hence user will not be able to see this display message) Result of all the tests. Disconnect mains cord to exit the Service Test Program. DISPLAY CHECKSUM FLASH S2B ECHO IIC NVRAM NVRAM WRITE SDRAM WRITE

35、ALL TEST FAIL or ALL TEST PASS DVD Dealer Test is used to check the flash RAM, the SDRAM, the DRAM, the NVRAM and the I2C communication. When all the tests are passed, display shows ALL TEST PASS. If at least one of the test fails, display shows ALL TEST FAIL. Y (Execute all the tests below without

36、interaction) ERROR CODE 0601 1101 1102 1103 1104 1201 1202 1203 1204 1301 1302 1303 1304 1601 5401 5402 5403 5403 ERROR DESCRIPTION Calculated Checksum of FLASH is not correct I2C bus busy before start NVRAM access time-out No NVRAM acknowledge NVRAM reply time-out I2C bus busy Error sending I2C com

37、mand to Slave Slave controller not responding Slave response is not correct Parity error receiving data from Basic Engine Parity error sending data to Basic Engine No communication with Basic Engine Comunication time-out with Basic Engine The SDRAM is faulty I2C bus busy Error sending I2C command to

38、 Scart Switch IC Scart switch IC not responding Scart switch IC response is not correct NUCLEUS NUMBER 6 11 - - - 12 - - - 13 - - - 16 54 - - - ERROR CODE (Nucleaus) Table 4 ERROR CODE 00 01 10 11 ERROR CODE (Faulty Modules) Table 3 STI + PERIPHERALS OK Faulty OK Faulty BASIC ENGINE PART OK OK Fault

39、y Faulty VOL + (RC) Button pressed? Y N DVD PLAYER TEST STEP 1* 2* 3A* 3B* 4* 5 6 7 8* 9* 10* 11 12 13 14 15 ACTION Output of a test picture on all available video output devices. Output of noise on all channels available. Output of internally generated pink noise on all channels available, test pic

40、ture (internally generated Colour Bar) on screen. Press S (RC) to go to Step 3B. Output of internally generated pink noise on all channels available, test picture (external signal) on screen. Press T (RC) to return to Step 3A. Sine sound output on all channels available. The sound can be stopped by

41、pressing the STOP(RC) button. Returns the Software Version of the basic engine. The user can move the tray in and out by pressing PLAY(RC) or RESUME(RC) button. User can insert or remove a disc. The user can move the sledge in and out by pressing PLAY(RC) or RESUME(RC) button. The disc motor starts

42、to run. Focus Test. Radial Test. The laser spot jumps to another position. Press PLAY(RC) to jump to the next position. Press RESUME(RC) to jump to the previous jump position. The user can move the tray in and out by pressing PLAY(RC) or RESUME(RC) button. User can insert or remove a disc. Reads out

43、 info from the error log (8 hex digits). Up to 16 errors can be stored in a buffer. The elements can be selected by pressing the PLAY(RC) or RESUME(RC) button. If the error log does not contain any fault codes, LO-00000000 will be displayed. Shows all error bits. Selects the error bit by pressing PL

44、AY(RC) or RESUME(RC) button. Runs the Dealer Test infinitely. The information returned from the module will be displayed. The loop number indicates the number of times the loop test has been performed. aa- Error Code Faulty Modules (see Table 3) bbb - Loop Number cccc - Error Code Nucleaus (see Tabl

45、e 4) Disconnect mains cord to exit the Service Test Program. DISPLAY BAR PICTURE PINK NOISE SCART LOOP DVD SCART LOOP EXT SINE SOUND ENG- xx.yy.zz TRAY SLEDGE MOTOR FOCUS RADIAL GROOVES TRAY LO- wwxxyyzz ERROR BITS xx aa-bbb cccc DVD Player Test is used to start several DVD specific tests. At the en

46、d of the test, an error code aa-bbb cccc (see Step15) will be shown that indicates which module(s) failed. * User has to give a confirmation by triggering one of the following: - If the test is OK, press PLAY(RC) button then follow by T (RC) button to go to the next step. - If the test is not OK, pr

47、ess RESUME(RC) button then follow by T (RC) button to go to the next step. Note : By pressing only the T (RC) button to go to the next step without triggering a confirmation, the test will be assume as OK by default. Equipment required to run the DVD Player Test: -television set -6 audio speakers -a

48、n external video source Go to next step by pressing T (RC) DIM (RC) Button pressed? Y N DVD VERSION MATRIX INFO STEP 1 2 3 4 5 6 INFORMATION Slash version number Region code setting (Number 1 - 6) Menu language table : US/AP (USA-Asian Pacific language table) US/EU (USA-Europe language table) Audio/

49、Subtitle language table (Number 1 - 4) Available of multichannel decording Available of smart picture Press 9 (RC) to exit DISPLAY SLASH # REGION # MULANG US/AP or MULANG US/EU ASLANG # MULTI-CH YES or MULTI-CH NO SMARTPIC YES or SMARTPIC NO Choose step by pressing S (RC) T (RC) DVD Version Matrix Info is used to read the version matrix information that are stored/defined in the DVD module software. Y N Y N MUTE (RC) Button pressed? Software Version Received? DVD IIC COMMUNICATION TEST Send request for DVD Software Version via IIC ports Display sh