Philips-PET-940-Service-Manual(1) 电路图 维修手册.pdf

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1、DVD Portable Player PET940 All version 3141 785 32700 Version 1.0 TABLE OF CONTENTS Chapter Technical Specification fr Reparaturen sind Original-Ersatzteile zu verwenden. I Le norme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricam

2、bio identici a quelli specificati. After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA. CLASS 1 LASER PRODUCT 3122 110 03420 GBWarning !

3、 Invisible laser radiation when open. Avoid direct exposure to beam. SVarning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. SFVaroitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen! DKAdvars

4、e ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. When?the?power?supply?is?being?turned?on,?you?may?not?remove?this?laser?cautions?label.?If?it?removes,?radiation?of?laser may?be?received. 2.1 ESD PROTECTION PREPARATION?OF?SERVICING Pickup?He

5、ad?consists?of?a?laser?diode?that?is?very?susceptible?to?external?static?electrocity. Although?it?operates?properly?after?replacement,?if?it?was?subject?to?electrostatic?discharge?during?replacement, its?life?might?be?shortened.?When?replacing,?use?a?conductive?mat,?soldering?iron?with?ground?wire,e

6、tc.?to protect?the?laser?diode?form?damage?by?static?electricity. And?also,?the?LSI?and?IC?are?same?as?above. Soldering?iron with?ground?wire or?ceramic?type Ground?conductive wrist?strap?for?body. Conductive?mat The?ground?resistance between?the?ground?line and?the?ground?is?less?than?10 1M SAFTY N

7、OTICE Plug the AC line cord directly into a 120V AC outlet (do not use an isolation transformer for this check). Use an AC voltmeter, having 5000 per volt or more sensitivity. Connect a 1500 10W resistor,paralleled by a 0.15uF 150V AC capacitor between a knomn good earth ground (water pipe, conduit,

8、 etc.) and all exposed metal parts of cabinet (antennas, handle bracket, metal cabinet screwheads, metal overlays, control shafts, etc.). SAFTY PRECAUTIONS LEAKAGE CURRENT CHECK Measure the AC voltage across the 1500 resistor. The test must be conducted with the AC switch on and then repeated with t

9、he AC switch off. The AC voltage indicated by the meter may not exceed 0.3V.A reading exceeding 0.3V indicates that a dangerous potential exists, the fault must be located and corrected. Repeat the above test with the DVD VIDEO PLAYER power plug reversed. NEVER RETURN A DVD VIDEO PLAYER TO THE CUSTO

10、MER WITHOUT TAKING NECESSARY CORRECTIVE ACTION. READING SHOULD NOT EXCEED 0.3V DVD VIDEO PLAYER AC OUTLET AC VOLTMETER Test all exposed metal. Voltmeter Hook-up for Leakage Current Check 0.15uF 150V AC 1500 10W (5000 per volt or more sensitivity) Good earth ground such as a water pipe, conduit, etc.

11、 The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within

12、 an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. CAUTION Use of controls or adjustments or performance of procedures other than herein may result in hazardous radiation

13、 exposure or other unsafe operation. - VOL + Volume control. Press once to stop playback and store the stop position. Press twice to stop playback completely. 3.0 INSTRUCTIONS FOR USE 1 2 3 12 8 9 10 Skip to previous/next track or fast search backward/forward. Power /remote sensor /charging indicato

14、r. 11 MAIN UNIT CONTROL POWER/IR/CHR Confirm selection. OK Switch the power on/off. POWER OPEN AVOUT 1 2 Open the disc door to insert or remove disc. Audio/Video output. Headphones jacks. OPTION MENU Access additional functions. Display MENU page. 4 Start / pause / resume play- back. USB port Insert

15、 USB plug. 14 RESET IReset the player when it is hanged up. 15 13 DC IN 9-12V Power supply socket. / 5 6 7 Up / down / left / right cursor. , , 1 3 4 5 8 9 10 13 15 14 2 6 12 11 7 SUBTITLE Subtitle language selector. REMOTE CONTROL 1 7 4 16 12 8 9 10 For VCD menu page. 11 A - B To repeat or loop a s

16、equence in a title. RETURN SETUP OPTION Enter SETUP menu. Access additional functions. 0 - 9 Access additional functions. VOL +/- Volume control. Numeric keypad. Up / down / left / right navigation key. Start / pause / resume playback MENU Display MENU page. 15 OK Confirm seletion. Mute player volum

17、e AUDIO Audio language selector. ZOOM Enlarge video image. 14 13 Skip to next chapter, track or title. 5 6 DISPLAY Adjust the display value of the system. Skip to previous chapter, track or title. 3 2, , , 2 5 3 4 1 6 7 8 9 10 11 12 13 14 15 16 4.0 MECHNICAL INSTRUCTIONS Fig.1Fig.5 Fig.6 1. Open the

18、 machine as Fig.15. Remove screws to remove display frame shade(base) and backlight board as Fig.5. 6. Then remove TFT LCD and speakers. 7. Base view as Fig.7. Remove screws to remove the base cover discreteness. Fig.7 4. Broken connections to remove IF board as Fig.4. Remove speaker grill . 2. Remo

19、ve screws to remove the top cover discreteness as Fig.2. Fig.2 Fig.3 Fig.4 3.Remove screws to remove display frame shade (top) as Fig.3. 4.0 MECHNICAL INSTRUCTIONS 8. Remove battery assy as Fig.8. 12. Remove screws to remove hinge adorn panel as Fig.12. 13. Remove screws to remove hinge right and hi

20、nge left ,then separate diplay frame disc- reteness and middle cabinet discreteness. 10. Remove main board as Fig.10. 11. Remove screws to remove function board as Fig.11. 9. Broken connections to remove loading assy as Fig.9. Fig.8 Fig.9 Fig.10 Fig.11 Fig.12 Fig.13 5.0 TROUBLESHOOTING & SERVICE TIP

21、S no replace cable/ adapter SYMPTOM: NO POWER, NO GREEN LED Check if the power cable and AC adapter OK? No defect, return set to customer yes start set OK? Check if the power and play button OK? replace connector and switch unit replace MAIN BOARD go to other SYMPTOM no yes yes no replace DVD drive

22、SYMPTOM: NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL OUTPUT start Check operation of the DVD drive. Does the DVD drive work? yes no Replace the main board or the connector 5.0 TROUBLESHOOTING & SERVICE TIPS no SYMPTOM: THE INITIAL SCREEN IS NOT DISPLAYED ON THE LCD Check if the LED on the front li

23、ghts up? start Check if the backlight is OK? Check if the lighting of the LCD is OK? Open the top and bottom assembly to check the connector harness Open the top and bottom assembly to check the connector to the main board yes yes no no yes Refer to the symptom NO POWER, NO GREEN LED Is the connecto

24、r harness broken? Replace broken harness yes Remove the LCD cover and plate of the LCD unit to check the connector of the FL harness Is the connector OK? no Repair connector Replace FL inverter or LCD no yes Is the connector broken? Replace LCD harness or main board yes Remove the LCD cover and plat

25、e of the LCD unit to check the connection of the harness to the LCD unit no Is the connection OK? Connect the LCD harness to the LCD unit no Replace LCD unit or main board yes Replace LCD unit or main board SYMPTOM: NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL INPUT start Replace the main board or

26、the connector 5.0 TROUBLESHOOTING & SERVICE TIPS SYMPTOM: THE DVD DRIVE DOES NOT WORK start Check the optical pick up lens? yes Pick up lens does not light up at all Press the DISC cover switch at the center of the DVD player and turn on the power. Then check whether or not the optical pick- up lens

27、 of the DVD drive lights. CAUTION: Visible laser radiation when open and interlock defeated. Do not stare into Laser beam. Replace DVD drive Pick up lens light up dim Check the connectors of the DVD drive and main board? OK Secure the connection of the DVD drive and main board Not OK Pick up lens li

28、ght up OK Insert a DVD disc and turn on the power What is the reaction of the DVD drive? The DVD drive works but the initializing operation of the optical pick-up lens does not start (the optical pick-up lens operates twice), or abnormal noise sound Replace DVD drive or main board DVD drive does not

29、 work The operation of the DVD player stops at initializing display. Is there any message shown on display oading?displayed Nothing on display Check the DVD disc for fingerprints, dirt, HECK DISK?displayed Is the DVD disc OK? DVD disc OKDVD disc dirty No defect, return set to customer Does the image

30、 output stop during the operation? yes no 5.0 TROUBLESHOOTING & SERVICE TIPS Secure the connection of the battery harness inside the DVD player SYMPTOM: THE DVD DRIVE DOES NOT OPERATE WITH BATTERY start Is the connection of the battery OK inside the DVD player? yes no Replace main board Replace batt

31、eryyes Install a good battery does the LED lights up orange while the AC adapter is connected and does the DVD drive operate OK? NOTE: - For this check, use a battery which is not fully charged (because the LED does not light when the battery is fully charged.) - Before this check, make sure other f

32、unction work correctly. no SYMPTOM: NO SOUND COMES FROM THE HEADPHONES start Replace main board yes Insert a good headphones and check if the problem persist? Customer headphones defective no RF AMP & SERVO & DVD PROCESSOR MPEG-2 DECODER & VIDEO ENCODER MT1389DE/LP-L(K) 6.0 OVERALL BLOCK DIAGRAM AC

33、Adapter DC IN +9V DC / DC MP1411 (TPC8212)(S-8232) 110240V 50/60Hz BATTERY KHM252G PU mechanism DRIVER (SA5954) 16M FlashROM EN25B16 64M SDRAM HY57V641620ETP-7-C TC4W53 TFT MONITOR AUDIO AMP (AZ4558) DC/DC MP1540 L R DRIVER +5.5V +5.5V +5V +3.3V +1.8V TFT POWER +5VAT1313 TPA6011 AUDIO OUT PHONE OUT

34、SPEAKER LOUT SPEAKER ROUT USB +5V +15V -10V VIDEO OUT AUDIO +/-5V +5V CHG BQ24103 FUNCTION PCB LOADING MAIN PCB LCD 7.0 OVERALL WIRING DIAGRAM IF PCB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 GND LD/DVD NC LD/VCC MD

35、LD/CD VR/DVD VR/CD NC E LD/VCC V20 GND F B A RFO CD/DVD SW D C T- T+ F+ F- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 TFT3V3 GND VCOM GND R/CR GND B/CB GND Y/G GND CPH1# STHL# OEH# OEV# CKV# STVL# GND SPL+ SPL- SPR- S

36、PR+ GND TFT5V TFT5V U1 XS4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 GND AVDD BOUT GOUT ROUT GND TFT3V3 CPH CPH2 CPH3 GND STHL OEH MOD LNR COM# COM# OEV UND CKV STVL GND VGH VGL TFT3V3 GND XS2 1 2 3 4 5 6

37、 1 2 3 4 5 6 KEYAD1 KEYAD0 POWERKEY GND TFTSW DV33 1 2 3 4 5 6 1 2 3 4 5 6 LIMIT GND SL+ SL- SP+ SP- 1 2 3 4 GND BRIGHTCON TFTON 3V8 1 2 3 4 1 2 3 4 5 6 7 1 2 3 4 5 6 7 GND GND GND TS BAT+ BAT+ BAT+ J1 1 2 1 2 VLED+ VLED- BATTERY PROTECTIVE PCBBACKLIGHT PCB J1 J5 XS1 J3 XS2 XS3 J4 T10 OP- AVCM MA3 R

38、FVDD3 IR LIMIT XI RESET MA2 SPDIF MA1 VREF LDO1 MA0 RFO FS LDO2 MA10 STBY CD/DVDSW DMO BA1# FMO BA0# RAS# STVL C CAS# CKV TRO A RFV18-1 B WE# OEV MA4 D OP+ FOO MA11 APLLVDD3 MA5 CLK# DQM1 MA6 MA7 V20 SF_CS SF_DO SF_DI DACVDD3 SF_CK SCL SDA DQ0 DQ1 DQ2 V1P4 DQ3 DACVDD3 DQ4 DQ5 DACVDD3 DQ7 DQ6 DQM0 DQ

39、15 RFV18-2 DQ12 DQ13 DQ10 DQ11 DQ8 BRIGHTCON MA9 MA8 DV33 VCOM DQ9 Y/G DQ14 F B/CB V18 AUDIO_MUTE# R/CR E AOUT_L ADACVDD AOUT_R AVDD33 CVBS CPH1 STHL OEH RFVDD3 AVDD33 DV33RFV18-1 RFV18-2 V18 DACVDD3 V1P4 BA0 BA0# BA1#BA1 CLK# CS RAS CAS RAS# CAS# WE WE# MA10 DQM1 DQM0 CKE MA11 MA9 MA8 MA7 MA6 MA5 M

40、A4 MA3 MA2 MA1 MA0 DQ2 DQ0 DQ5 DQ1 DQ6 DQ3 DQ4 DQ9 DQ11 DQ8 DQ13 DQ10 DQ12 DQ7 DQ14 DQ15 F+ SL- SL+ SP- SP+ FMSO TRSO STBY V1P4 F- MO_VCC DMSO V1P4 FOSO FOO TRO FMO DMO FOSO MO_VCCTRSO DMSO FMSO CLK OP+ OP- LIMIT DV33 SL+ SL- SP+ SP-A SP- SP-A MO_VCC SD3V3 DV33SD3V3 CKESD3V3 CS CD/DVDSW VR/CD VR/DVD

41、 VCC LD/CD LD/DVD LDO1 LDO2 DV33RFV33 DV33 SF_CS SF_DO FLASH3V3 SF_CK SF_DI FLASH3V3 FLASH3V3SF_CS FLASH3V3DV33 X1 V18 DV33 SCL SDA DV33 DV33RESET AUDIO_MUTE# V1P4 DV33ADACVDD DV33APLLVDD3 VCC X0 X0 T- D VR/DVD T+ A F- F MD CD/DVDSW C V20 VCC T+ VR/CD LD/CD T- B LD/DVD RFO V20 E MD F+ RFV33 DV33 V18

42、 5V5 +P5V SD_CD CVBS MCUCOMU IR RXD/SD_CMD TXD/SDD0 SD_CLK CLOSESW TFTON/OFF TFTSW Y/G B/CB R/CR VCOM CPH1 STHL OEH OEV CKV STVL AUDIO_MUTE +P5V SFLASH SDRAM MO_DRIVER OP_INTERFACE HD65 SYSTEM CLOCK POWER_DECOUPLE&FILTER EEPROM C71500PC71500P C66 0.1U C66 0.1U R2318KR2318K L19601L19601 R2120KR2120K

43、C52 0.1U C52 0.1U C44 10U/10V C44 10U/10V R4110KR4110K R2020KR2020K R1333R1333 L8601L8601 1 23 VD16 KTA1298 VD16 KTA1298 C25 0.1U C25 0.1U R9 10K R9 10K R3610K/NCR3610K/NC L32601L32601 R2682KR2682K C21UC21U 1 2 3 4 5 6 7 8 J1 53261-0690 J1 53261-0690 L5601L5601 12 D7 1SS355 D7 1SS355 R3 560 R3 560 V

44、INFC 1 CFCERR1(OP2IN-) 2 CFCERR2(OP2IN+) 3 VINSL+ 4 VINSL-(OP2OUT) 5 VOSL(CLOSE) 6 VNFFC(OPEN) 7 VCC 8 PVCC1(LOAD-) 9 PGND(LOAD+) 10 VOSL- 11 VOSL+ 12 VOFC- 13 VOFC+ 14 STBY 28 BIAS 27 VINTK 26 CTKERR1(OP1IN+) 25 CTKERR2(OP1IN-) 24 VINLD 23 PREGND 22 PVCC2 21 VNFTK(OP1OUT) 20 PGND(VCC2) 19 VOLD- 18

45、VOLD+ 17 VOTK- 16 VOTK+ 15 GND 29 GND1 30 U12 SA5954 U12 SA5954 T- 23 T+ 22 F- 21 VR/CD 20 VR/DVD 19 NC 18 MD 17 VCC 16 NC 15 LD/DVD 14 GND 13 LD/CD 12 E 11 V20 10 LD/VCC 9 F 8 GND 7 D 6 A 5 CD/DVDSW 4 RF 3 B 2 C 1 F+ 24 GND 25 GND 26 U20 FF24 U20 FF24 C23 0.1U C23 0.1U C36 15N C36 15N L15601L15601

46、C54.7UC54.7U C37 5P1 C37 5P1 C34 330P C34 330P R1075KR1075K C21 0.1U C21 0.1U R2910KR2910K R2220KR2220K C15 0.1U C15 0.1U L14601L14601 C48 0.1U C48 0.1U C16 10U/10V C16 10U/10V R1820KR1820K R3310R3310 C17 0.1U C17 0.1U L4601L4601 C58 10U/10V C58 10U/10V C18 0.1U C18 0.1U C75 22P C75 22P C22 0.1U C22

47、 0.1U L2601L2601 C69 0.1U C69 0.1U R17 10K R17 10K R2510KR2510K 81 72 63 54 RN1 33*4 RN1 33*4 C76 5.1P C76 5.1P C67 0.1U C67 0.1U C31 0.1U C31 0.1U C30150PC30150P C5510U/16VC5510U/16V R391MR391M C27 0.1U C27 0.1U C113 10U/16V C113 10U/16V C12 0.1U C12 0.1U R1433R1433 Y127MY127M R28 10K R28 10K C14 1

48、0U/10V C14 10U/10V C32150PC32150P RFE 5 RFF 6 AVDD18 7 AVDD33 8 XTALI 9 XTALO 10 AGND 11 V20 12 REXT 14 MDI1 15 MDI2 16 LDO1 17 LDO2 18 AVDD33 19 DMO 20 FMO 21 TRAY_OPEN 22 TRAY_CLOSE 23 TRO 24 FOO 25 FG / GPIO2 26 USB_DP 27 USB_DM 28 USB_V33 29 USB_GND 30 PAD_VRT 31 USB_V18 32 GPIO3 / INT# 33 GPIO4

49、 34 SF_CS_ 36 SF_DO 37 SF_DI 38 SF_CK 39 UP1_6 / SCL 40 UP1_7 / SDA 41 ICE 42 PRST# 43 IR 44 RD0 45 RD1 46 RD2 47 RD3 48 RD4 49 RD5 51 RD6 52 RD7 53 DVDD33 50 DQM0 55 RD15 56 RD14 57 DVDD18 54 RD13 58 RD12 59 RD11 61 RD10 62 RD9 63 DVSS33 60 RD8 64 DQM1 65 RCLK 66 RA11 67 RA9 69 RA8 70 HCK / GPIO18 99 HSTL/GPIO17 98 HOE/GPIO16 97 VOE/GPIO15 96 VCK/GPIO14 95 VSTU / GPIO13 94 DVDD18 90 SPDIF / GPIO12 93 HSTR / GPIO11 92 LR / GPIO10 91 UD / GPIO9 8