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Summary of Contents for 32LD320

Page 1: ...HIS MANUAL CHASSIS LD91A MODEL 32LD320 32LD320 ZA MODEL 32LD320N 32LD320N ZA North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL50326844 1004 REV00 Downloaded From TV Manual com Manuals ...

Page 2: ...right 2010 LG Electronics Inc All right reserved Only for training and service purposes CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 8 EXPLODED VIEW 13 SVC SHEET Downloaded From TV Manual com Manuals ...

Page 3: ...heck 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 metallic part has a return path to the chassis the me...

Page 4: ...uching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposur...

Page 5: ...f the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced component and ad...

Page 6: ...ication by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC 4 Component Video Input Y CB PB CR PR No Specification Remark Resolution H freq kHz V freq Hz 1 720x480 15 73 60 00 SDTV DVD 480i 2 720x480 15 63 59 94 ...

Page 7: ...8 321 HDCP 2 640 480 31 469 59 94 25 17 VESA HDCP 3 800 600 37 879 60 31 40 00 VESA HDCP 4 1024 768 48 363 60 00 65 00 VESA XGA HDCP 5 1280 768 47 78 59 87 79 5 WXGA HDCP 6 1360 768 47 72 59 8 84 75 WXGA HDCP 7 1280 1024 63 595 60 0 108 875 SXGA HDCP FHD model 8 1920 1080 67 5 60 00 138 625 WUXGA HDCP FHD model 2 PC Mode No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed Remark 1 720 480 ...

Page 8: ...rror is displayed Check connection between computer jig and set 3 Click Read tab and then load download file XXXX bin by clicking Read 4 Click Connect tab If Can t is displayed check connection between computer jig and set 5 Click Auto tab and set as below 6 Click Run 7 After downloading check OK message USB DOWNLOAD 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in US...

Page 9: ...r Service Mode by pushing ADJ key Enter Internal ADC mode by pushing G key at 5 ADC Calibration Caution Using power on button of the Adjustment R C power on TV ADC Calibration Protocol RS232 Adjust Sequence aa 00 00 Enter Adjust Mode xb 00 40 Component1 Input 480i ad 00 10 Adjust 480i Comp1 xb 00 60 RGB Input 1024 768 ad 00 10 Adjust 1024 768 RGB aa 00 90 End Adjust mode Required equipment Adjustm...

Page 10: ...are Tool option and Area option value with its BOM if it is correctly same then unplug the AC cable If it is not same then correct it same with BOM and unplug AC cable For correct it to the model s module from factory JIG model Push the IN STOP key after completing the function inspection 4 2 DDC EDID Write RGB 128Byte Connect D sub Signal Cable to D sub Jack Write EDID Data to EEPROM 24C02 by usi...

Page 11: ... 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 3A 60 3E 1F 46 10 00 0A 20 20 20 20 20 20 d 70 d 01 e 80 02 03 20 F1 4E 10 1F 84 13 05 14 03 02 12 20 21 90 22 15 01 26 15 07 50 09 57 07 f A 0 f 80 18 71 1C 16 20 58 2C 25 00 7E 8A 42 00 B0 00 9E 01 1D 00 80 51 D0 0C 20 40 80 35 00 7E 8A C0 42 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 D0 7E 8A 42 00 00 18 02 3A 80 18 71 38 2D 40 58 2C E0 45 00 7E 8A 4...

Page 12: ...ignal Cable to RS 232 Jack Write Serial number by use RS 232 Must check the serial number at the Diagnostics of SET UP menu Refer to below 5 1 Signal TABLE CMD A0h LENGTH 85 94h 1 16 bytes ADH EEPROM Sub Address high 00 1F ADL EEPROM Sub Address low 00 FF Data Write data CS CMD LENGTH ADH ADL Data_1 Data_n Delay 20ms 5 2 Command Set Description FOS Default write 7mode data write Vtotal V_Frequency...

Page 13: ...nd mechanical parts 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 IMPOR...

Page 14: ... 7K FE_TUNER_SDA AI13 10 I9 C111 20pF C112 20pF 3 3V R1507 1 2K R1506 1 2K R1550 100 POWER_DET 3 3V_ST R1544 100 PWM0 PWM2 PWM_DIM A_DIM C1500 1uF OPT C1501 2 2uF OPT 24V 15V 12V 15V PWM2 11 AE17 PWM0 DBG_TX POWER_DET 3 3V_TUNER R146 0 R116 0 R173 0 R168 0 R100 0 C114 0 1uF C100 0 1uF R150 100 OPT R156 100 R147 100 R157 100 R166 100 R148 100 R160 100 R154 100 R183 100 R153 100 R190 100 R177 100 R1...

Page 15: ...41 0 1uF C265 0 1uF C2036 0 1uF C251 0 1uF C2001 0 1uF C289 0 1uF C253 0 1uF C2039 0 1uF C283 0 1uF C243 0 1uF C2000 0 1uF C294 0 1uF C276 0 1uF C242 0 1uF C2040 0 1uF C277 0 1uF C254 0 1uF C291 0 1uF C2032 0 1uF C2033 0 1uF C2037 0 1uF C266 0 1uF C250 0 1uF C244 0 1uF C2030 0 1uF C262 0 1uF C293 0 1uF C2029 0 1uF C273 0 1uF C256 0 1uF C279 0 1uF C271 0 1uF C260 0 1uF C284 0 1uF C263 0 1uF C267 0 ...

Page 16: ...301 H5PS5162FFR S6C J2 VREF J8 CK H2 VSSQ2 B7 UDQS N8 A4 P8 A8 L1 NC4 L2 BA0 R8 NC3 K7 RAS F8 VSSQ3 F3 LDM P3 A9 M3 A1 N3 A5 K8 CK R3 NC5 L3 BA1 J7 VSSDL L7 CAS F2 VSSQ4 B3 UDM M2 A10 AP K2 CKE R7 NC6 M7 A2 N7 A6 M8 A0 J1 VDDL K3 WE E8 LDQS P7 A11 K9 ODT A2 NC1 N2 A3 P2 A7 H8 VSSQ1 F7 LDQS A8 UDQS R2 A12 L8 CS E2 NC2 E7 VSSQ5 D8 VSSQ6 D2 VSSQ7 A7 VSSQ8 B8 VSSQ9 B2 VSSQ10 P9 VSS1 N1 VSS2 J3 VSS3 E3...

Page 17: ...23 30V ADUC30S03010L_AMODIODE OPT D424 30V ADUC30S03010L_AMODIODE OPT D406 30V AMOTECH D407 30V AMOTECH D404 5 6V AMOTECH D405 5 6V AMOTECH D410 5 6V AMOTECH D411 5 6V AMOTECH D412 5 6V AMOTECH D418 5 6V ADMC5M03200L_AMODIODE OPT D419 5 6V ADMC5M03200L_AMODIODE OPT D420 5 6V ADMC5M03200L_AMODIODE OPT D421 5 6V OPT AMOTECH D422 5 6V OPT AMOTECH ZD403 OPT ADMC5M03200L_AMODIODE JK405 KJA UB 4 0004 1 ...

Page 18: ...NERAL CI_ADDR 12 5V_GENERAL CI_ADDR 14 CI_CD2 PCM_A 1 CI_TS_CLK PCM_A 8 CI_OE CI_MISTRT D14 CI_MDI 7 CI_MDI 1 PCM_WE CI_TS_DATA 4 C501 0 1uF 16V GND CI_TS_DATA 0 FE_TS_CLK CI_MCLKI REG PCM_A 4 CI_MISTRT PCM_A 9 FE_TS_SYN PCM_A 13 PCM_IOWR R509 10K PCM_OE CI_ADDR 5 CI_MDI 7 PCM_A 5 GND CI_TS_DATA 3 R517 10K CI_MIVAL_ERR GND PCM_REG CI_ADDR 3 CI_MDI 5 PCM_CE PCM_A 11 CI_TS_DATA 2 CI_ADDR 4 3 3V_CI P...

Page 19: ...C 5V_HDMI_2 HPD2 Q602 2SC3052 E B C 5V_HDMI_3 HPD3 Q603 2SC3052 E B C IC601 CAT24C02WI GT3 3 A2 2 A1 4 VSS 1 A0 5 SDA 6 SCL 7 WP 8 VCC IC600 CAT24C02WI GT3 3 A2 2 A1 4 VSS 1 A0 5 SDA 6 SCL 7 WP 8 VCC IC602 CAT24C02WI GT3 3 A2 2 A1 4 VSS 1 A0 5 SDA 6 SCL 7 WP 8 VCC R607 0 GND 3 3V_ST HDMI_CEC Q600 SSM6N15FU 3 DRAIN2 2 GATE1 1 SOURCE1 4 SOURCE2 5 GATE2 6 DRAIN1 D603 MMBD301LT1G 30V CEC_REMOTE R625 0...

Page 20: ... 100 R726 12 R727 12 R725 12 R728 12 R716 12 R705 12 R713 12 R719 12 C725 10uF 35V C736 10uF 35V 5V_EARPHONE Q705 2SC3052 E B C R740 0 R703 0 0 1uF C709 C710 0 1uF 16V C702 0 1uF 16V 0 1uF C715 16V 0 1uF C706 16V R704 100 C741 1000pF 50V C707 1000pF 50V C708 1000pF 50V C743 1000pF 50V C742 1000pF 50V C744 1000pF 50V C705 100pF 50V R700 10K R724 10K R729 10K R707 10K R741 10K R714 1K R715 1K C701 1...

Page 21: ... POWER_ON OFF1 1 8V_DDR R810 0 OPT R806 0 3 3V_TUNER 5V_GENERAL IC809 AP1117E33G 13 2 OUT 3 IN 1 ADJ GND R808 0 22 INV_CTL R845 0 21 ERROR R875 0 21 GND R851 0 21 ADIM R812 0 22 GND R855 0 22 PDIM R858 0 20 INV_CTL 0 R841 22 ERROR R870 0 OPT C848 0 01uF 25V C841 0 01uF 25V C816 0 1uF 16V C817 0 1uF 16V 0 1uF C818 16V OPT C820 0 1uF 16V C865 0 1uF 16V C890 0 1uF 16V C885 0 1uF 16V C802 0 1uF 16V C8...

Page 22: ... 680 19 22 C1126 0 1uF 50V R1185 0 R1187 0 R1182 0 0 R1117 R1105 0 0 R1133 R1134 0 C1105 0 1uF 16V C1113 0 1uF 16V C1132 0 1uF C1131 0 1uF R1147 10K R1108 10K R1121 10K R1128 10K R1154 10K R1153 10K R1110 10K R1178 10K R1148 10K R1127 12K R1111 12K R1112 12K R1129 12K R1186 12K 26 52 R1167 15K R1175 15K R1184 15K R1181 1K R1180 1K R1126 1K R1159 1K R1196 2 2K R1191 2 2K R1190 2 2K R1197 2 2K R1114...

Page 23: ...V OPT C1206 47pF 50V OPT C1220 0 1uF 16V C1215 0 1uF 16V Q1201 ISA1530AC1 E B C Q1205 ISA1530AC1 E B C Q1202 ISA1530AC1 E B C C1209 68uF 10V R1223 0 C1222 0 01uF 25V C1208 0 1uF 16V OPT C1210 0 1uF 16V C1219 0 1uF 16V C1214 0 1uF 16V C1227 0 1uF 16V C1200 0 1uF 16V C1221 0 1uF 16V R1229 10 R1224 100 R1225 100K C1216 100pF 50V C1207 100pF 50V R1209 10K R1231 10K R1232 10K R1230 2 2K R1222 33 R1221 ...

Page 24: ... IR L1306 BLM18PG121SN1D 8PIN IR L1307 BLM18PG121SN1D L1308 BLM18PG121SN1D 12PIN IR P1304 12507WS 12L 12PIN IR 1 SCL 2 SDA 3 GND 4 KEY1 5 KEY2 6 5V_ST 7 GND 8 WARM_ST 9 IR 10 GND 11 3 3V 12 PWR_ON 13 IR_OUT 5V_ST 5V_ST Q1301 2SC3052 OPT E B C Q1300 2SC3052 OPT E B C P1305 12507WS 08L 8PIN IR 1 KEY1 2 KEY2 3 GND 4 5V_ST 5 GND 6 IR 7 LED_B 8 LED_R 9 R1322 100 12PIN IR R1321 100 12PIN IR R1325 4 7K 1...

Page 25: ...Downloaded From TV Manual com Manuals ...

Page 26: ...8A No DVIX IC100 MP6211DH USB Power IC402 USB Power FE_TS_DATA 0 7 CI_MDI 0 7 H SCART SC1_R G B SC1 2_L R_IN FE_AM_AUDIO AV_L R_IN COMP_L R_IN PC_L R_IN FE_ VOUT DTV MNT_VOUT TDDR_A 0 12 TPA6110A IC700 Head Phone RS 232C MAX3232CDR IC403 SPDIF SPDIF_OUT DSUB_H VSYNC HP_L ROUT L R CI_TS_DATA 0 7 PCM_D 0 7 CI_DATA 0 7 CI_ADDR 0 7 AUDIO IN DGB_TX RX HPD1 2 3 HDMI_CEC TMDS 0 7 Data Clock USB_DM DP EEP...

Page 27: ...VGH VDD SOE POL Left mini LVDS 8Bit Right mini LVDS 8Bit LVDS 10Bit FRC IIC FRC Reset VCOM GAMMA FRC_3 3V FRC_1 8V FRC_1 26V DC DC Converter BD9130 IC301 LDO SC4215 IC303 FRC_1 8V FRC_1 26V FRC_3 3V VCC LVDS 10Bit From Main Board FRC IIC FRC Reset Panel 12V To Left LCD Panel To Right LCD Panel VST VDD_EVEN VDD_ODD CLK1 6 Shifted level HIGH VGH Low VGL VCC VDD VGH VGL VST VDD_EVEN VDD_ODD CLK1 6 SO...

Page 28: ...P GSC GOE SOE POL VCOM GAMMA DC DC Converter BD9130 IC301 LDO SC4215 IC303 FRC_1 8V FRC_1 26V FRC_3 3V VCC VGHM Left mini LVDS 8Bit Right mini LVDS 8Bit LVDS 10Bit FRC IIC FRC Reset FRC_3 3V FRC_1 8V FRC_1 26V LVDS Wafer P 10 1 LVDS 10Bit FRC IIC FRC Reset Panel 12V mini LVDS Wafer P 40 1 To Left LCD Panel To Right LCD Panel VCC VDD VGHM VGL GSP GSC GOE SOE POL VCOM GAMMA VCC VDD VGHM VGL GSP GSC ...

Page 29: ...ror 5 6 B Power error No power 6 7 Off when on off while viewing power auto on off 7 8 C Audio error No audio Normal video 8 9 Wrecked audio discontinuation noise 9 10 D Function error No response in remote controller key error recording error memory error 10 11 External device recognition error 11 12 E Noise Circuit noise mechanical noise 12 13 F Exterior error Exterior defect 13 First of all Che...

Page 30: ...place Inverter or module N Repair Power Board or parts End Always check record S W Version and White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Standard Repair Process Revised date 2008 3 05 1 13 LCD TV Error symptom A Video error No video Normal audio First of all Check whether all of cables between board is inserted p...

Page 31: ...20V or 24V No Video No audio Check and replace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio Established date Revised date 2008 3 05 2 13 LCD TV Error symptom 2 Downloaded From TV Manual com Manuals ...

Page 32: ...ifferent maker TV etc SVC Bulletin Replace Main B D Check Tuner soldering Normal Picture Y N Y Close Normal Picture Y Close Menu Setup Booster By using Digital signal level meter By using Diagnostics menu on OSD Menu Setup Diagnostic Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cable or Air N N Normal Picture Y Close N...

Page 33: ...l device and cable Y External device Cable normal RGB HDMI DVI error Check external device and cable Replace Main B D Replace Main B D N N A Video error Color error N Y End Replace module Request repair for external device cable Replace T Con Board And Adjust VCOM N Y Color error LGD Module Only Other Module Color error Check Test pattern Standard Repair Process Established date Revised date 2008 ...

Page 34: ... pattern Generator Set top Box etc N Y Replace Main B D Screen normal Check screen condition by input External Input Component RGB HDMI DVI Request repair for external device Component error RGB error HDMI DVI Connect other external device and cable Check normal operation of External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc Replace Main B D Screen normal...

Page 35: ...ormal Check ST BY 5V Replace Power B D N Y Normal voltage Replace Power B D Y Standard Repair Process Established date Revised date 2008 3 05 6 13 LCD TV Error symptom 09 years new model apply mechanical power switch to reduce power consumption in stand by status If mechanical power switch off Doesn t turn on by remote control Doesn t appear LED light Please refer to the A21 Page 6 Stand By Red Op...

Page 36: ...tion Normal POWEROFF_REMOTEKEY Power off by REMOTE CONTROL POWEROFF_OFFTIMER Power off by OFF TIMER POWEROFF_SLEEPTIMER Power off by SLEEP TIMER POWEROFF_INSTOP Power off by INSTOP KEY POWEROFF_AUTOOFF Power off by AUTO OFF POWEROFF_ONTIMER Power off by ON TIMER POWEROFF_RS232C Power off by RS232C POWEROFF_RESREC Power off by Reservated Record POWEROFF_RECEND Power off by End of Recording POWEROFF...

Page 37: ...er Board Normal voltage Y N Replace Power Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video Disconnection Established date Revised date 2008 3 05 8 13 LCD TV Error symptom Standard Repair Process 8 Downloaded From TV Manual com Manuals ...

Page 38: ... Noise only for External Input Connect and check other external device N Y Normal audio Check and fix external device Replace Power B D N Y Normal voltage Check input signal RF External Input signal Signal normal When RF signal is not received Request repair to external cable ANT provider Y Check audio B Voltage 20V or 24V Replace Main B D In case of External Input signal error Check and fix exter...

Page 39: ...older Normal operating Check B 5V On Main B D Normal Voltage Close N N Check 5v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem Check IR Output signal Normal Signal N Y Repair Replace IR B D N Replace Main B D Y Y N Check R C Operation Normal operating Y Check Repair Cable connection Connector solder Normal operating Close N Check Replace Assembly status Key PCB too...

Page 40: ...ognition error Check and fix external device cable RGB HDMI DVI Optical Recognition error Replace Main B D Replace Main B D Fix in accordance with technical information D Function error External device recognition error Established date Revised date 2008 3 05 11 13 LCD TV Error symptom Standard Repair Process 11 Downloaded From TV Manual com Manuals ...

Page 41: ... proceed as shown in the solution manual For models without any fix information provide the description OR Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual E Noise Circuit noise mechanical noise With Inverter Module Without Inve...

Page 42: ...age Replace cabinet Replace remote controller Remote controller damage Stand dent Replace stand F Exterior defect Exterior defect Adjust VCOM Established date Revised date 2008 3 05 13 13 LCD TV Error symptom Standard Repair Process 13 Downloaded From TV Manual com Manuals ...

Page 43: ... Digital TV 5 4 Analog TV 6 5 AV Scart CVBS S Video 7 12 6 Component 13 7 RGB D SUB 14 15 8 HDMI 16 17 9 Audio Problem All Input 18 10 Digital TV 19 11 Analog TV 20 12 AV Component RGB HDMI PC HDMI DTV 21 26 13 AV Audio out No Audio Headphone SPDIF 27 30 14 USB Remocon Problem USB no connect Remocon 31 33 15 Intelligent Sensor Intelligent Sensor 34 Downloaded From TV Manual com Manuals ...

Page 44: ... YES NO MAIN B D L813 1 26V Replace MAIN B D IC805 YES NO MAIN B D L805 3 3V Replace MAIN B D IC806 YES NO Check MAIN B D X100 Clock 12MHz Replace MAIN B D IC100 YES NO Replace MAIN B D IC102 NAND FLASH YES Replace MAIN B D IC103 Serial Flash NO Replace MAIN B D IC300 IC301 DDR2 Memory NO Replace MAIN B D IC100 NO Making Revision 2009 2 1 1 34 LCD TV Symptom Power Up Boot Fail 26 42LH2000 32 47LH3...

Page 45: ...C103 Serial Flash NO Replace MAIN B D IC300 IC301 DDR2 Memory NO Replace MAIN B D IC100 NO Making Revision 2009 2 1 LCD TV Symptom Power Up Boot Fail 19 22LH2000 2 34 P801 Pin 5 6 Voltage Level 5V YES P801 Pin 1 2 15V MAIN B D L803 3 3V YES MAIN B D L813 1 26V YES MAIN B D L805 3 3V YES Check MAIN B D X100 Clock 12MHz YES Replace MAIN B D IC102 NAND FLASH YES Downloaded From TV Manual com Manuals ...

Page 46: ...Replace MAIN B D Q802 MAIN B D L1300 12V Replace MAIN B D Q806 NO Replace Main Board YES P800 Pin 13 14 12V P800 Pin 17 18 24V Check LVDS Cable OK YES Replace LVDS Cable NO Making Revision 2009 2 1 LCD TV Symptom No OSD 26 42LH2000 32 47LH3000 LH4000 3 34 Downloaded From TV Manual com Manuals ...

Page 47: ...d YES NO YES NO YES Replace MAIN B D Q802 MAIN B D L1300 12V Replace MAIN B D Q806 NO Replace Main Board YES P801 Pin 1 2 15V Check LVDS Cable OK YES Replace LVDS Cable NO Making Revision 2009 2 1 LCD TV Symptom No OSD 19 22LH2000 4 34 Downloaded From TV Manual com Manuals ...

Page 48: ...809 YES NO Replace MAIN B D IC808 MAIN B D IC804 Pin 2 1 2V Replace MAIN B D IC804 YES NO YES MAIN B D R1210 Clock NO Replace MAIN B D TU1200 Making Revision 2009 2 1 LCD TV Symptom Digital TV Video Problem 26 42LH2000 32 47LH3000 LH4000 5 34 Downloaded From TV Manual com Manuals ...

Page 49: ... MAIN B D L1201 5V YES MAIN B D L1202 3 3V NO Replace MAIN B D IC809 YES NO Replace MAIN B D IC808 MAIN B D IC804 Pin 2 1 2V Replace MAIN B D IC804 YES NO YES MAIN B D R1210 Clock NO Replace MAIN B D TU1200 26 42LH2000 32 47LH3000 LH4000 6 34 Downloaded From TV Manual com Manuals ...

Page 50: ...AIN B D JK1100 YES NO Check MAIN B D R1117 Video Signal NO YES Check MAIN B D C210 Video Signal Replace MAIN B D C210 NO Replace MAIN B D IC 100 YES Making Revision 2009 2 1 LCD TV Symptom AV1 Scart CVBS No Video Problem 26 42LH2000 32 47LH3000 LH4000 7 34 Downloaded From TV Manual com Manuals ...

Page 51: ... MAIN B D JK1100 YES NO YES Check MAIN B D C200 RED C201 GREEN C202 BLUE Video Signal Replace MAIN B D C200 C201 C202 NO Replace MAIN B D IC 100 YES Making Revision 2009 2 1 LCD TV Symptom AV1 Scart RGB No Video Problem 26 42LH2000 32 47LH3000 LH4000 8 34 Downloaded From TV Manual com Manuals ...

Page 52: ...lace MAIN B D JK1101 YES NO Check MAIN B D R1133 Video Signal NO YES Check MAIN B D C211 Video Signal Replace MAIN B D C211 NO Replace MAIN B D IC 100 YES Making Revision 2009 2 1 LCD TV Symptom AV2 No Video Problem 26 42LH2000 32 47LH3000 LH4000 9 34 Downloaded From TV Manual com Manuals ...

Page 53: ...e MAIN B D JK402 YES NO Check MAIN B D R400 Video Signal NO YES Check MAIN B D C217 Video Signal Replace MAIN B D C217 NO Replace MAIN B D IC 100 YES Making Revision 2009 2 1 LCD TV Symptom AV3 CVBS No Video Problem 26 42LH2000 32 47LH3000 LH4000 10 34 Downloaded From TV Manual com Manuals ...

Page 54: ...ing Guide Analog TV No video YES Check MAIN B D R1205 Video Signal NO Replace MAIN B D Q1205 YES Check MAIN B D C1107 Video Signal NO MAIN B D JK1100 Check YES Making Revision 2009 2 1 11 34 LCD TV Symptom AV1 No Video Out Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 55: ...ck the SCART Cable YES YES Check MAIN B D C1122 Video Signal NO MAIN B D JK1101 Check YES Replace MAIN B D IC 100 Making Revision 2009 2 1 12 34 LCD TV Symptom AV2 No Video Out Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 56: ...eck MAIN B D R419 Video Signal NO YES Check MAIN B D C209 C215 Y C216 Pb C214 Pr Video Signal Replace MAIN B D C209 or C214 or C215 or C216 NO Replace MAIN B D IC 100 YES Making Revision 2009 2 1 13 34 LCD TV Symptom Component No Video No Color Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 57: ... Check MAIN B D C208 Video R246 HSYNC R245 VSYNC Replace MAIN B D C208 or R246 or R247 NO Replace MAIN B D IC 100 YES MAIN B D P400 Pin 2 Video signal R437 has Vsync R440 has Hsync Making Revision 2009 2 1 14 34 LCD TV Symptom RGB No Video Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 58: ...eck MAIN B D C212 RED C207 GREEN C213 BLUE Video Signal Replace MAIN B D C212 or C207 or C213 NO Replace MAIN B D IC 100 YES MAIN B D P400 Pin 3 BLUE Pin 2 GREEN Pin 1 RED Video signal Making Revision 2009 2 1 15 34 LCD TV Symptom RGB No Color Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 59: ...K YES Download EDID Refer to Adjustment Spec NO NO Replace MAIN B D IC107 HDCP KEY Making Revision 2009 2 1 16 34 LCD TV Symptom HDMI 1 3 All No Video Problem HDMI1 ALL MODELS HDMI2 Except for 19 22LH20 HDMI3 Except for 19 22LU40 19 22LU50 19 22LH20 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 60: ... JK602 HDMI3 YES _ This case is that HDMI Video doesn t display at the some HDMI input not all Making Revision 2009 2 1 17 34 LCD TV Symptom HDMI1 or 2 or 3 No Video Problem HDMI1 ALL MODELS HDMI2 Except for 19 22LH20 HDMI3 Except for 19 22LU40 19 22LU50 19 22LH20 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 61: ...D JK700 or JK701 YES Replace MAIN B D JK700 or JK701 NO _ If headphone is connected Speaker sound doesn t work Replace MAIN B D IC803 NO YES MAIN B D L700 1 8V MAIN B D Check R720 R721 R722 Signal YES Replace MAIN B D IC100 NO Replace MAIN B D IC701 NO Making Revision 2009 2 1 18 34 LCD TV Symptom All Source no Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 62: ...Digital TV Video OK YES Replace MAIN B D IC 100 Making Revision 2009 2 1 19 34 LCD TV Symptom Digital TV No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 63: ...MAIN B D TU1200 NO Analog TV Video OK YES Check MAIN B D C231 Signal SIF NO Replace MAIN B D IC100 YES Making Revision 2009 2 1 20 34 LCD TV Symptom Analog TV No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 64: ...ght Sound C230 Left Sound signal YES NO Replace MAIN B D IC 100 AV1 Video OK YES Check MAIN B D JK1100 Replace MAIN B D JK1100 NO YES Making Revision 2009 2 1 21 34 LCD TV Symptom AV1 No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 65: ...ight Sound C2009 Left Sound signal YES NO Replace MAIN B D IC 100 AV2 Video OK YES Check MAIN B D JK1101 Replace MAIN B D JK1101 NO YES Making Revision 2009 2 1 22 34 LCD TV Symptom AV2 No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 66: ...ight Sound C2012 Left Sound signal YES NO Replace MAIN B D IC 100 AV3 Video OK YES Check MAIN B D JK402 Replace MAIN B D JK402 NO YES Making Revision 2009 2 1 23 34 LCD TV Symptom AV3 No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 67: ...ound C2014 Left Sound signal YES NO Replace MAIN B D IC 100 Component Video OK YES Check MAIN B D JK400 Replace MAIN B D JK400 NO YES Making Revision 2009 2 1 24 34 LCD TV Symptom Component No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 68: ...ht Sound C2016 Left Sound signal YES NO Replace MAIN B D IC 100 RGB Video OK YES Check MAIN B D JK401 Replace MAIN B D JK401 NO YES Making Revision 2009 2 1 25 34 LCD TV Symptom RGB HDMI PC No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 69: ...EDID OK YES Download EDID Refer to Adjustment Spec NO Check the HDMI Cable Replace MAIN B D IC100 YES Making Revision 2009 2 1 26 34 LCD TV Symptom HDMI DTV No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 70: ...NO YES Replace MAIN B D IC 100 Analog TV Audio OK YES Check MAIN B D JK1100 Replace MAIN B D JK1100 NO YES Check the Trouble Shooting Guide Analog TV No video NO Making Revision 2009 2 1 27 34 LCD TV Symptom AV1 No Audio Out Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 71: ... YES Replace MAIN B D IC 100 Speaker Audio OK YES Check MAIN B D JK1101 Replace MAIN B D JK1101 NO YES Check the Trouble Shooting Guide Related to Audio Problem NO Making Revision 2009 2 1 28 34 LCD TV Symptom AV2 No Audio Out Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 72: ...lace MAIN B D IC 100 Speaker Audio OK YES Check MAIN B D JK700 or JK701 Replace MAIN B D JK700 or JK701 NO YES Check the Trouble Shooting Guide Related to Audio Problem NO Making Revision 2009 2 1 29 34 LCD TV Symptom Headphone No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 73: ... 100 Speaker Audio OK YES Check MAIN B D JK403 Replace MAIN B D JK403 NO YES NO Check the Trouble Shooting Guide Related to Audio Problem NO Making Revision 2009 2 1 30 34 LCD TV Symptom SPDIF No Audio Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 74: ... to User Manual s USB cautions YES Check MAIN B D R801 5V Replace MAIN B D IC402 YES NO Replace MAIN B D IC808 YES YES Replace MAIN B D IC 100 Check MAIN B D JK405 OK YES NO Replace MAIN B D JK405 Making Revision 2009 2 1 31 34 LCD TV Symptom USB No Connect Problem 32 47LH4000 Downloaded From TV Manual com Manuals ...

Page 75: ... Connector Check MAIN B D P1304 Wafer Connector YES NO Replace it YES Replace IR B D Making Revision 2009 2 1 32 34 LCD TV Symptom Remote Control Problem 26 42LH2000 32 47LH3000 LH4000 Downloaded From TV Manual com Manuals ...

Page 76: ...fer Connector YES NO Replace MAIN B D IC100 IR B D IC1 Pin 3 Voltage 4V NO NO Replace it YES Replace IR B D IC1 NO Replace MAIN B D IC100 Making Revision 2009 2 1 33 34 LCD TV Symptom Remote Control Problem 19 22LH2000 Downloaded From TV Manual com Manuals ...

Page 77: ...P1 Wafer Connector Check MAIN B D P1304 Wafer Connector YES YES NO Replace it Replace IR B D Making Revision 2009 2 1 34 34 LCD TV Symptom Intelligent Sensor Problem 32 47LH4000 Downloaded From TV Manual com Manuals ...

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