LG 32PG6000, Service Manual

Page 1: ...PLASMA TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS PD81A MODEL 32PG6000 32PG6000 ZA website http biz LGservice com Internal Use Only ...

Page 2: ... Electronics Inc All right reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 7 TROUBLE SHOOTING 12 BLOCK DIAGRAM 21 EXPLODED VIEW 30 SVC SHEET PRINTED CIRCUIT DIAGRAM ...

Page 3: ...by it s Neck Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed...

Page 4: ...fication V Module General Specification 1 50 WXGA Module Display Screen Device Aspect Ratio PDP Module Operating Environment Storage Environment Input Voltage 1 2 3 4 5 6 No Item Specification Remark 50 inch Wide Color Display Module 16 9 PDP50G1 RGB Closed Well Type Glass Filter 38 Pixel Format 1365 horiz By 768 ver 1 Temp 0 40 deg 2 Humidity 20 80 3 Temp 20 60 deg 4 Humidity 10 90 100 240V 50 60...

Page 5: ...isplay Screen Device Aspect Ratio PDP Module Operating Environment Storage Environment Input Voltage 1 2 3 4 5 6 No Item Specification Remark 50 inch Wide Color Display Module 16 9 PDP50H2 RGB Closed Well Type Glass Filter 38 Pixel Format 1920 horiz By 1080 ver 1 Temp 0 40 deg 2 Humidity 20 80 3 Temp 20 60 deg 4 Humidity 10 90 100 240V 50 60Hz PDP LGE SPEC Maker LG Display Screen Device Aspect Rat...

Page 6: ... I II 4 SECAM L L 5 DVB T Analog Upper Heterodyne Digital COFDM PAL SECAM PAL SECAM NTSC PAL SECAM NTSC Y Cb Cr Y Pb Pr RGB PC HDMI PC HDMI DTV RGB DVI Audio Component AV SPDIF OUT For SVC S W Download X Studio 27 Country EU PAL Market Scart1 Jack is Full scart and support RF OUT Analoge Scart2 Jack is Half scart and support MNT OUT Side AV Side AV Analog D Sub 15Pin HDMI1 DVI HDMI2 HDMI3 HDMI4 L ...

Page 7: ...eep 100 240V 50 60Hz 5 The receiver must be operated for about 5 minutes prior to the adjustment O After RGB Full White in HEAT RUN Mode the receiver must be operated prior to the adjustment O Enter into HEAT RUN MODE 1 Press the POWER ON KEY on R C for adjustment 2 Press the ADJ KEY on R C and enter EZ ADJUST Select 3 Test Pattern by using D E CH and press ENTER V Select White by using F G VOL an...

Page 8: ...necessary 1 Press ADJ key on R C for adjustment 2 Select 2 ADC calibration by using D E CH and press ENTER V 3 Select Start by using F G VOL and press ENTER V 4 ADC adjustment is executed automatically 7 Manual EDID Download 1 Press the ADJ KEY on R C and enter EZ ADJUST 2 Select 5 EDID D L by using D E CH and press ENTER V 3 Select Start and press ENTER V 4 EDID download is executed automatically...

Page 9: ...ustment refer fig 1 1 Connect terminal of D M M to Vs pin of P811 connect terminal to GND pin of P811 2 After turning VR951 voltage of D M M adjustment as same as Vs voltage which on label of panel right top deviation 0 5V 11 42 POWER PCB Ass y Voltage Adjustment Va Vs voltage Adjustment 11 1 Model name 42PG6000 42PG6010 11 2 Adjustment Method 1 42 Va Adjustment refer fig 2 1 After receiving 100 F...

Page 10: ...l White Pattern HEAT RUN 2 Connect terminal of D M M to Va pin of P811 connect terminal to GND pin of P811 3 After turning VR901 voltage of D M M adjustment as same as Va voltage which on label of panel right top deviation 0 5V 2 32 Vs Adjustment refer fig 4 1 Connect terminal of D M M to Vs pin of P811 connect terminal to GND pin of P811 2 After turning VR951 voltage of D M M adjustment as same a...

Page 11: ...power on no suspension of power supply and heat run over 5 minutes 2 In case of PDP keep white pattern using inside pattern 3 In case of LCD using no signal or full white pattern or the others check the back light on O Auto Adjustment Map RS 232C 14 4 Manual White Balance 1 Zero Calibrate CA 100 CA 210 and when controlling stick the sensor to the center of PDP module surface 2 Press the ADJ KEY on...

Page 12: ...Monitor signal come out Yes 7 Check the VSC Vs ON signal Doesn t the high tension output come out Doesn t the VSC signal Vs ON come out Yes Yes Does high tension output voltage Drop occur When the Y B D Module input connector is removed does output voltage drop occur When the Y Z B D Module input connector is remove does Power Board hightension output voltage Drop occur Yes No No 9 Check the Power...

Page 13: ... 13 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 1 2 Power Board Structure 1 Pin Layout 2 Pin Spec ...

Page 14: ...D 2 Check following A Power cord is plugged with TV set Plug in power cord Yes No Is the AC INLET connected with the power board Connect the AC INLET Yes No Is the Fuse F101 F801 on Power Board normal Replace the Fuses Yes No Is the Power Board with VSC Board though Cable connected Connect the Cable Yes No Measure output voltages 16V 12V 5V on the power board If the measured values is not normal r...

Page 15: ... Ctrl B D Yes No Yes Is the Y Board normal Is the output voltage normal after remove P209 connector of Y B D Is the Fuse FS201 on Y B D normal In case of open is replace Yes No Yes Yes Replace Z Board Is the Z Board normal Is the output voltage normal after remove P3 connector of Z B D Is the Fuse FS1 on Z B D normal In case of open is replace Yes No Yes Is the X Board normal Is the output voltage...

Page 16: ...o YES Yes Reconnect the LVDS cable in P501 No Is normal the VSC Board Operates the FLI106X0H IC100 1 Check the Monitor OUT by SCART2 Connect the another TV SET 2 Check the LVDS clock R537 R538 on the VSC Borad by Oscilloscope Replace the VSC B D No NO Replace the Power board Is output the normality Low High voltage except stand by 5V NO 4 No Raster 1 Symptom 1 No OSD and image occur at screen 2 It...

Page 17: ... in the LVDS cable 2 Isn t the LVDS cable connect well from Ctrl Board to VSC Board Is the VSC Board normal 1 Replace cable 2 LVDS Cable connect well from Ctrl Board to VSC Borad No Yes Yes No Is the Ctrl Board of Module normal 1 Check the LED on the Ctrl Board 2 Check the 5V_ON on the Power Board by the DMM No Replace FLI106X0H IC IC100 Operates FLI106X0H IC100 1 Check the Monitor OUT by SCART2 C...

Page 18: ... Yes No No Operates the FLI106X0H IC IC100 1 Check the Monitor OUT by SCART2 Connect the another TV SET 2 Check the LVDS clock R537 R538 on the VSC Board by Oscilloscope 3 Check the each Input Source ATV TV_CVBS R302 DTV TU301 Pin23 S AV Mode SIDE_CVBS_IN R1160 Component RGB COMP_Y V HSYNC R1122 R1174 R1180 HMDI SDA SCL IC201 Pin29 Pin30 SCART SC1 2_CVBS_IN R977 R521 on the VSC Board by Oscillosco...

Page 19: ...DMI mode 7 In the case of becomes unusual display from SCART mode Is R G B input and H V Sync of the JK701 703 normal 1 Check the RGB signal H V SYNC in the RGB Cable Yes Check the input source of Equipment Same as Block A No Is Video input of A V jack normal Yes Check the input source Same as Block A No No Is the HDMI IC201 normal Yes Same as Block A Is the TMDS waveform between the IC and HDMI j...

Page 20: ...k the IIC communication SDA SCL R645 R643 3 Check the Audio Signal is normal SPK_L R L603 L604 L606 L610 Replace the Audio AMP IC IC601 No No YES Replace the VSC Board Is the speaker On it menu 1 Menu Audio TV Speaker ON OFF Set on speaker in menu TV Speaker OFF ON No Is the speaker Cable normal 1 Isn t damage in the Speaker Cable 2 Is the Speaker cable connect well form VSC B D to Speaker Change ...

Page 21: ...C907 HDMI4 RGB L R Tuner TDFV G135D1 TU301 TMDS 0 7 74LVC541A PW Buffer IC402 PCMCIA Card 74LVC542A5 Bi Buffer IC405 DATA 0 7 74LCX244MTC Buffer IC406 407 408 Address 0 14 TMDS 0 7 CVBS SIF AM Audio Tuner V out NLASB3157 IC502 LVDS TMDS ODD 10 bit Host Address 1 16 Host Data 0 15 LPF DDR2 Data 0 15 DDR2 SDRAM 64MByte Qimonda IC701 DDR2 Data 16 31 DDR2 Address 0 12 I2C MICOM WT61P8 IC802 I2C MAX323...

Page 22: ...V MNTs witc hC trl LevelAd j Sc art2L ink VXO_VS Sc art2L R LevelAd j AUD_OUT1_L R TRB UF GPIOA5 MUTE_LINE_DTV DTV MNTL R LPF LPF LevelAd j LevelAd j SV2P B4P AUD_IN_R4 AUD_IN_L4 VXO_D11 SIDEC VBSL ink VXO_D1 FLI10306 MICOM TUNER TRN et MSP4458 MSP4458 SIF AMA UDIO I2S Muxed Aud io Muxed Aud io AUD_OUT1_L R TR Ad j 1 Audio R out TV 2 audio R in 3 audio L out TV 4 audio GND 5 blue GND 6 audio L in ...

Page 23: ...HDMI2 I2C EDID AT24C02BN HDMI 3 TMDS 8bit DDC HDMI3 I2C EDID AT24C02BN HDMI SW TMDS 8bit HDMI I2C SW HDMI EQ Ctrl VXO_D6 GPIOA0 GPIOA1 HDMI Select 1 HDMI Select 2 CEC_REMOTE GPIOB1 2WIRE_S1 2WIRE_S0 DSDA1 DSCL1 HDMI SW TMDS 8bit DDC HDMI4 I2C EDID AT24C02BN 2WIRE_S2 BRX ARX VXO_D20 VXO_D21 HDMI1 5V DET HDMI3 5V DET HDMI4 5V DET VXO_CLK HP DET S W4 VXI_D23 HP DET S W1 HP DET S W3 HDMI_B_HPD HDMI_A_...

Page 24: ...ATA Dir Select CI Detect POD_DETECT_N CI Detect TS_IN 0 7 74LCX244MTC Buffer IC406 HOST Address 0 3 POD Address 4 7 CI Address 0 7 74LCX244MTC Buffer IC407 HOST Address 10 13 POD Address 8 9 14 HOST Address 4 74LCX244MTC Buffer IC408 REG CI Detect CI Detect CI Address 8 14 CI Detect POD_OE_HOST_RD HOST Out Enable CI Out Enable HOST Write Enable CI Write Enable HOST Address 6 CI IORD HOST Address 5...

Page 25: ...PC L R AUD_IN_L R 1 Ch 3 AUD_IN_L R 1 Ch 4 AUD_IN_L R 1 Ch 5 Audio Master CLK LR Ch Data AUD_MCLK0 AUDO_I2SA_BCLK AUDO_I2SA_WCLK AUDO_I2SA_DAT0 AUD_OUT1 L R AUDO_SPDIR_OUT Tuner TDFV G135D1 TU301 AM AUDIO TR BUF MUTE_LINE_DTV TR BUF TR BUF SCART 1 SCART 2 TV LR OUT DTV MNT LR OUT 16V FAULT AUDIO_MUTE VXO_D5 RESET I2C 3 3V TPY 10W 10W MAX 15W 15W TPS2042BDRG4 Power Distributer IC901 5V USB DP DM 5V...

Page 26: ...r training and service purposes BlockDiagram Reset KIA7029AF Power On Reset IC803 MICOM Reset NRST S29GL256N10TFI020 NOR Flash IC404 RESET EJTAG RESET EJ_RST_N SYS RESET RESET_N Tic S W NTP3000 SW_RESET VXO_D5 PCMCIA CI_RST POD_RESET TUNER FE_RESET VXI_D14 FLI10306 MICOM GPIOE6 MSP 4458 ...

Page 27: ... X4 0x72 MICOM 0x50 NTP3000 0x54 TUNER Digital R 0x1E W 0x1F Master I2C 1 TUNER Analog R 0x87 W 0x86 MVRAM 24LC512 W 0xA6 R 0xA7 SDA1_5V SCL1_5V Master I2C 0 Slave I2C 0 Slave I2C 2 Slave I2C 1 EDID AT24C02BN EDID AT24C02BN EDID AT24C02BN EDID AT24C02BN TMDS 351PAG IC202 FLI10306 EDID AT24C02BN DSDA1 DSCL1 MICOM EDID AT24C02BN MSP4458 Digital R 0x81 W 0x80 ...

Page 28: ...8R05F IC1011 5V TUNER KIA78R05F IC1007 CI_EN 5V CI NTP3000A 16V KIA78R33F 1A IC1012 3 3V_ON 3 3V TUNER 3 3V CI AZ1117H 1 8TRE IC1004 1 8V AZ1117H 3 3 IC1003 3 3V_STBY FET Power S W Q1003 5V RL_ON PWR_ON OFF Tuner CI_module Tuner HDMI S W CI buffer Flash Memory NTP3000A Chaplin AUD_VREFP Tuner NTP3000A RS 232 Driver Sub Micom HDMI S W OPTIC Jack NVRAM USB MSP4458 MSP4458 ...

Page 29: ...s Inc All right reserved Only for training and service purposes Power Voltage BlockDiagram 5V KIA78R33F 1A IC1001 3 3V_ON 3 3V DOUGLAS PQ018EZ02ZPH 0 23 IC1000 1 8V_DOUGLAS_DDR 1 8V_DOUGLAS_EN SC4519STRT 600Khz 3A 0 41 IC1002 1 26V_DOUGLAS 1 26V_DOUGLAS_EN ...

Page 30: ...in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE ...

Page 31: ...3 DDR2_DM 2 DDR2_DM 3 CPL_DDR2_D 0 CPL_DDR2_D 1 CPL_DDR2_D 2 CPL_DDR2_D 3 CPL_DDR2_D 4 CPL_DDR2_D 5 CPL_DDR2_D 6 CPL_DDR2_D 7 CPL_DDR2_D 8 CPL_DDR2_D 9 CPL_DDR2_D 10 CPL_DDR2_D 11 CPL_DDR2_D 12 CPL_DDR2_D 13 CPL_DDR2_D 14 CPL_DDR2_D 15 CPL_DDR2_D 16 CPL_DDR2_D 17 CPL_DDR2_D 18 CPL_DDR2_D 19 CPL_DDR2_D 20 CPL_DDR2_D 21 CPL_DDR2_D 22 CPL_DDR2_D 23 CPL_DDR2_D 24 CPL_DDR2_D 25 CPL_DDR2_D 26 CPL_DDR2_D...

Page 32: ...6 V C41 9 GND 5V_CI 0 R40 4 10 K R43 7 READY 10 K R40 8 10 K R41 5 READ Y 10 K R40 9 READ Y 10 K R41 6 READ Y 10 K R41 0 10 K R41 7 10 K R41 1 10 K R41 8 READ Y 10 K R40 5 READ Y 10 K R41 2 READ Y 10 K R41 9 READ Y 10 K R40 6 READ Y 10 K R41 3 10 K R42 0 10 K R40 7 10 K R41 4 47 R47 7 HOST_READ Y 100 R44 7 47 R43 5 100 R44 6 5 V 5 V 5 V 0 1uF 16 V C42 0 HOST_D 0 7 10 K R47 0 74LCX244MT C IC407 COM...

Page 33: ...IMPOR TANT FOR PRO TECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 5V_HDMI_1 DDC_SCL_ 2 0 READY R21 8 0 R21 7 READY P_ 5 V AT24C02BN 10SU 1 8 IC204 3 A2 2 A1 4 GND 1 A0 5 SD A 6 S CL 7 WP 8 VCC 33 K R22 2 CEC_ 0 P_ 5 V CEC_REMOT E HDMI3_5V_DE T 0 1...

Page 34: ...June 2008 Printed in Korea P NO MFL41181008 ...