LG 55LH95QD Service Manual Download Page 2

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LGE Internal Use Only

CONTENTS

CONTENTS ............................................................................................. 2

PRODUCT SAFETY ................................................................................. 3

SPECIFICATION ....................................................................................... 6

ADJUSTMENT INSTRUCTION ................................................................ 9

MEDIA-BOX SETUP GUIDE .................................................................. 14

EXPLODED VIEW .................................................................................. 15

SVC. SHEET ...............................................................................................

Summary of Contents for 55LH95QD

Page 1: ...ERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LC91E MODEL 55LH95QD 55LH95QD CB 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 MFL60021630 0909 REV00 ...

Page 2: ...lectronics Inc All right reserved Only for training and service purposes LGE Internal Use Only CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 MEDIA BOX SETUP GUIDE 14 EXPLODED VIEW 15 SVC SHEET ...

Page 3: ...o operate without damage of electrical shock 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 terminal...

Page 4: ... on your body by touching 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...

Page 5: ... the solder joints of 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 repla...

Page 6: ...ange This specification sheet is applied to the LCD TV used LC91E chassis 2 Specification Each part is tested as below without special appointment 1 Temperature 25 5 C 77 9ºF CST 40 5ºC 2 Relative Humidity 65 10 3 Power Voltage Standard input voltage 100 240V 50 60Hz Standard Voltage of each products is marked by models 4 Specification and performance of each parts are followed each drawing and sp...

Page 7: ... 0 284 Test Condition Y 0 258 0 273 0 288 85 Full white pattern Medium X 0 270 0 285 0 300 Y 0 278 0 293 0 308 Warm X 0 298 0 313 0 328 Y 0 314 0 329 0 344 7 Color Distortion DG 10 8 Color Distortion DP 10 deg 9 Color S N AM FM 43 0 dB 10 Color Killer Sensitivity 80 dBm 6 Component Video Input Y CB PB CR PR No Specification Remark Resolution H freq kHz V freq Hz Pixel clock 1 720x480 15 73 60 00 S...

Page 8: ...ed Remark DTV 1 720 480 31 469 31 5 59 94 60 27 00 27 03 SDTV 480P 2 720 576 31 25 50 54 SDTV 576P 3 1280 720 37 500 50 74 25 HDTV 720P 4 1280 720 44 96 45 59 94 60 74 17 74 25 HDTV 720P 5 1920 1080 33 72 33 75 59 94 60 74 17 74 25 HDTV 1080I 6 1920 1080 28 125 50 00 74 25 HDTV 1080I 7 1920 1080 26 97 27 23 97 24 74 17 74 25 HDTV 1080P 8 1920 1080 33 716 33 75 29 976 30 00 74 25 HDTV 1080P 9 1920 ...

Page 9: ... this mode Single color pattern RED BLUE GREEN of HEAT RUN mode uses to check panel Caution If the still image is displayed more than 20 minutes Especially digital cross hatch pattern an after image in the black level area 3 Adjustment items Check the TOOL OPTION prior to adjustment If the TOOL OPTION is incorrect correct it then execute the power off on to apply the modification refer to 7 3 TOOL...

Page 10: ... 20 000000000000000000000000007c007b006dx sub Sub ad 00 21 000000070000000000000000007c00830077x Confirm adj ad 00 99 NG 03 00x Fail NG 03 01x Fail NG 03 02x Fail OK 03 03x Success End adj aa 00 90 a 00 OK90x 0 1 2 3 4 5 6 7 8 9 A B C D E F 00 00 FF FF FF FF FF FF 00 1E 6D ⓐ ⓑ 10 ⓒ 01 03 68 73 41 78 0A CF 74 A3 57 4C B0 23 20 09 48 4C A1 08 00 81 80 61 40 45 40 31 40 01 01 30 01 01 01 01 01 01 02 ...

Page 11: ...ent data A Acknowledge Ex Send JA_00_DD Ack A_00_okDDX 2 RS 232C Command used during auto adj Ex wb 00 00 Begin white balance auto adj wb 00 10 Gain adj ja 00 ff Adj data jb 00 c0 wb 00 1f Gain adj completed wb 00 20 Start wb 00 2f completed Off set adj wb 00 ff End white balance auto adj 3 Adjustment Map 11 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purpose...

Page 12: ...216 Gray Standard color coordinate and temperature using CS 1000 Standard color coordinate and temperature using CA 210 CH 9 5 2 EYE Q function check Step 1 Turn on TV Step 2 Press EYE key of Adj R C Step 3 Cover the Eye Q II sensor on the front of the using your hand and wait for 6 seconds Step 4 Confirm that R G B value is lower than 10 of the Raw Data Sensor data Back light If after 6 seconds R...

Page 13: ...and after a few seconds Upgrade OSD is displayed If the version of download file in USB is lower than the current version Upgrade OSD is not displayed 3 After download is finished automatically Power off on is executed If auto power on off is not executed perform the power off on manually 4 S W upgrade is completed and eject USB Memory Stick form USB jack 5 By pressing IN START key on the adj R C ...

Page 14: ...iding accessory 2 When setting up Media Box and TV facing each other If the surface distance on which Media Box is placed becomes more than 20cm wireless connection sensitivity could be dropped and it is recommended to use rubber 3 In case setting up by using a reflection The whole reflected distance shouldn t be over 10m and if using a rubber according to the condition how Media Box is placed wir...

Page 15: ...A2 A22 LV1 LV2 Many electrical and 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 ...

Page 26: ...3 COMP2_L_IN 009 D3 R1292 10K R1255 12K COMP1_AUDIO_R 001 B2 R1256 12K COMP2_AUDIO_R 001 B2 COMP2_AUDIO_L 001 B2 R1293 12K R1294 12K R1252 10K R1268 0 OPT D3 3V_2 R1240 1K R1283 1K R1265 22 R638 1K OPT R1257 22 R1270 10K R1298 470K D5 0V_1 RGB_DDC_SCL 012 F3 RGB_DDC_SDA 012 F3 R1238 0 R1239 0 SYS_UART_RXD 014 C5 014 F5 R1133 220 SYS_UART_TXD 014 F5 C1108 0 1uF 16V R1134 220 C1105 0 1uF 16V D1101 A...

Page 27: ...R507 AVRL161A1R1NT OPT R595 0 R519 0 JP506 R597 0 R537 47K R559 47K R536 R558 R538 47K R546 47K R533 R545 R535 47K R561 47K R534 47K R547 47K C504 0 1uF L501 BLM18PG121SN1D D3 3V_2 D3 3V_HDMI R542 2K R541 2K VR508 AVRL161A1R1NT GND D500 MMBD301LT1G R528 68K JP501 DDC_SCL_2 002 D3 002 H4 5V_HDMI_3 DDC_SCL_3 002 C4 002 G6 5V_HDMI_1 DDC_SCL_1 002 C3 002 E4 5V_HDMI_1 D3 3V_HDMI DDC_SDA_4 D3 3V_HDMI D3...

Page 28: ... OPT WIHD_PWR_EN 012 F2 D5 0V_W R703 10K C721 0 1uF 16V R705 2 7K P5 0V_ST Q700 2SC3052 E B C L701 CB3216UA121 R702 120K C722 OPT 8 0PI C719 0 1uF 16V IC700 BA50BC0WFP E2 1 CTL 2 VCC 3 GND 4 OUT 5 NC P6 0V C716 0 1uF 16V R701 1K D5 0V_1 C718 100uF 16V C711 100uF 16V C723 47uF 16V C724 0 1uF 16V C725 47uF 16V C726 0 1uF 16V D3 3V_2 D1 8V_1 IC703 AP1117E18G 13 NEW 2 OUT 3 IN 1 ADJ GND R771 3 9K GND ...

Page 29: ...0 10 C1019 0 1uF 16V X1005 30 4MHz RF_SWITCH_SEL 001 X25 002 P22 R1038 OPT C1027 22pF 50V R1016 1M R1025 0 SYNCLOCK 009 H27 TU_SCL_3 3V 009 F29 C1015 0 01uF 25V FE_TS_SERIAL 001 AL16 FE_DEMOD_SCL 001 D21 R1029 0 OPT R1022 47 C1014 0 01uF 25V C1060 47pF 50V 3 3V_DTMB TU_IF_OUT 009 AT3 FE_SIF 002 S17 LGDT_SCS 009 T27 TU_IF_AGC 009 C31 C1028 0 1uF 16V R1018 0 5V_TUNER 3 3V_DTMB R1011 100 R1019 47 C10...

Page 30: ...03 10uF R346 OPT R347 OPT R348 OPT R349 OPT D1 8V_S_DDR R350 OPT R351 0 D1 8V_S_DDR D1 8V_S_DDR D1 8V_S_DDR D1 8V_S_DDR C345 0 1uF IC100 LGE3369A Saturn6 Non RM compC B_DDR2_A0 T26 B_DDR2_A1 AF26 B_DDR2_A2 T25 B_DDR2_A3 AF23 B_DDR2_A4 T24 B_DDR2_A5 AE23 B_DDR2_A6 R26 B_DDR2_A7 AD22 B_DDR2_A8 R25 B_DDR2_A9 AC22 B_DDR2_A10 AD23 B_DDR2_A11 R24 B_DDR2_A12 AE22 B_DDR2_BA0 AC23 B_DDR2_BA1 AC24 B_DDR2_BA...

Page 31: ...0 1uF C2134 0 1uF C2109 0 1uF C164 0 1uF C185 0 1uF D1 26V_VDDC C188 0 1uF C180 0 1uF C178 0 1uF C174 0 1uF D3 3V_1 C163 330uF 4V C176 0 1uF C2115 0 1uF C169 0 1uF C170 0 1uF C2126 0 1uF C2137 0 1uF C2123 0 1uF C184 0 1uF D1 8V_DDR C193 0 1uF C189 0 1uF L101 BLM18PG121SN1D C165 330uF 4V C199 0 1uF C172 0 1uF C177 0 1uF D3 3V_VDDP C2128 0 1uF C2104 0 1uF C2125 0 1uF C175 0 1uF C2131 0 1uF C216 0 1u...

Page 32: ...5 0V_ST MICOM_UART_TXD 014 F6 FRONT_INT 014 E2 D3 3V_1 RGB_DDC_SCL 001 H1 MICOM_SDA_M 012 C3 R410 22 C400 47uF 16V R426 100 R404 4 7K R439 100 TP409 MICOM_SCL_M 012 D5 R411 22 R448 0 R446 6 8K TP403 R428 0 D3 3V_L R409 22 HDMI_CEC_TX 017 F2 017 F4 HDMI_CEC_RX 002 F1 009 B3 R427 100 IC401 WT61P8 RG480WT NEW 1 NC1 2 VDD33V 3 GND 4 OSCO 5 OSCI 6 GPIOB6 SSDA 7 GPIOB5 SSCL 8 GPIOB4 P05 9 GPIOB3 P04 10 ...

Page 33: ... R1126 0 HDMI_RX_RESETb 009 F5 C1121 0 1uF 16V R1127 0 D5 0V_W Q1101 RTR030P02 S D G IC1101 MIC2009YM6 TR 3 ENABLE 2 GND 4 FAULT 1 VIN 6 VOUT 5 ILIMIT USB_DM 009 I2 C1124 1000pF OPT C1125 1000pF OPT R1124 0 R1123 0 Q1103 RTR030P02 S D G P5 0V_ST R1129 330 R1128 4 7K P1105 SMW200 03 1 2 3 C1126 0 1uF 16V Q1102 2SC3052 E B C P5 0V_ST FAN_S_DETECT 012 F4 R1130 0 FAN_S_ONOFF 012 F4 C1127 10uF 16V P6 0...

Page 34: ... 009 D2 R952 4 7K OPT C919 0 1uF 16V HDMI_TX_RESETb 017 A3 009 F5 LVB_0M 009 D2 IC900 DTC30LM36 EAN60390301 1 PLLGND_1 2 PLLVCC_1 3 MODE3 4 PDN 5 MODE0 6 MODE1 7 DK 8 R_FB 9 OE 10 MODE2 11 MAP 12 VCC_1 13 GND_1 14 R20 15 R21 16 R22 17 R23 18 R24 19 R25 20 R26 21 VCC_2 22 GND_2 23 R27 24 R28 25 R29 26 G20 27 G21 28 VCC_3 29 VCC_4 30 GND_3 31 G22 32 G23 33 G24 34 G25 35 G26 36 G27 37 G28 38 VCC_5 39...

Page 35: ...017 F2 R819 4 7K R830 0 OPT R813 47K D1 8V_1 C824 0 1uF 16V VR800 AVRL161A1R1NT TP805 HDMI_TX_VIDEO_DE 016 G3 C830 47uF 16V HDMI_TX_SEL 017 C6 009 F5 D5 0V_1 R815 1K HDMI_TX_VIDEO_CLK 016 G6 HDMI_TX_HPD1 017 F5 017 F2 R820 0 OPT HDMI_TX_TMDS_TXA2N 017 F1 R822 0 TP811 C817 0 1uF 16V VR801 AVRL161A1R1NT D1 8V_1 HDMI_TX_TMDS_TXBCN 017 E5 IC802 MC14053BDR2G 3 Z1 2 Y0 4 Z 1 Y1 6 INH 5 Z0 7 VEE 8 VSS 9 ...

Page 48: ...R THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 1 13 W TV Rx Wireless TV Receiver Board 2009 02 03 1 Title Sheet 2 RFIC 3 Power 4 Power Supply1 5 Power Supply2 6 BBIC IF 7 BBIC Clock Recovery 8 BBIC Audio Video Out 9 BBIC Control 10 BBIC Misc 11 BBIC Power Ground 12 HDMI Tx 13 uController Title Sheet Copyright 2009 LG Electronics Inc All right reserved Only for training and service p...

Page 49: ...6 3V 1608 C245 4 7uF 6 3V 1608 C210 4 7uF 6 3V 1608 C202 4 7uF 6 3V 1608 XO_EN V22 6 Y15 R206 0 1005 IC201 SB9111 VDDARF_1 C1 VDDARF_2 C2 VDDARF_5 D1 VDDARF_6 D2 VSSA_6 E1 VSSA_7 E2 VDDAPL_1 F1 VDDAPL_2 F2 VDDHARF_1 G1 VDDHARF_2 G2 VSSA_10 H1 VSSA_11 H2 BBINI_N J1 BBINI_P J2 VSSA_14 K1 VSSA_15 K2 BBINQ_P L1 BBINQ_N L2 VSSA_18 M1 VSSA_19 M2 BBOUTI_N N1 BBOUTI_P N2 VSSA_22 P1 VSSA_23 P2 BBOUTQ_P R1 ...

Page 50: ...J601 L302 CIC21J601 L309 CIC21J601 L308 CIC21J601 C306 4 7uF 10V 2012 C307 4 7uF 10V 2012 C308 4 7uF 10V 2012 C309 4 7uF 10V 2012 C302 10uF 16V 3216 C301 10uF 16V 3216 VCC1 8VH VCC3 3V L311 CIC21J601 C310 10uF 16V 3216 C311 10uF 16V 3216 C312 10uF 16V 3216 L303 3 3uH L304 3 3uH IC301 AZ1117R 1 8TRE1 SOT89_3PIN 1 ADJ GND 2 OUTPUT 3 INPUT Power 2009 02 03 3 13 A G N V D AJ AE S AF AM AK I E L AB B Y...

Page 51: ... 5 NC_3 6 VO 7 ADJ 8 GND R426 4 7K VCC2 5V VCC3 3V VCC3 3V C426 47uF 6 3V 7343 C418 47uF 6 3V 7343 C417 47uF 6 3V 7343 C429 47uF 6 3V 7343 L407 CIC21J601 L408 CIC21J601 C428 22uF 10V 3216 C430 22uF 10V 3216 R406 10K 1005 R415 12K 1005 R417 10K 1005 R401 20K 1 1005 C420 1 2pF 1005 C415 1 2pF 1005 R405 10K C401 0 047uF 1005 C402 1uF 10V 1608 C425 0 1uF 16V C427 0 1uF 16V C431 0 1uF 16V C432 0 1uF 16...

Page 52: ...uF 6 3V 7343 C512 47uF 6 3V 7343 C513 0 1uF 16V 1005 C514 47uF 6 3V 7343 C503 4 7uF 10V 2012 C501 1uF 6 3V 1005 C504 0 01uF 25V 1005 C506 0 01uF 25V 1005 C510 1uF 6 3V 1005 IC501 SC338IMSTRT 3 EN1 2 ADJ1 4 PGD1 1 DRV1 5 GND 6 PGD2 7 EN2 8 ADJ2 9 DRV2 10 IN R501 15K 1 1005 R504 12K 1 1005 C502 10uF 6 3V 1608 C508 10uF 6 3V 1608 Q501 SI4804BDY compC 3 S2 2 G1 4 G2 1 S1 5 D2_1 6 D2_2 7 D1_1 8 D1_2 5 ...

Page 53: ... 2 T22 HSD2_N 2 T22 HSD1_P 2 S22 HSD1_N 2 T22 HSD0_P 2 S22 HSD0_N 2 S22 BBINI_P 2 N16 BBINI_N 2 N16 BBINQ_P 2 N15 BBINQ_N 2 N15 IC601 SB9121 ADCI_P R22 ADCI_N R21 ADCQ_P U21 ADCQ_N U22 DACI_P L22 DACI_N L21 DACQ_P N21 DACQ_N N22 PCLK_P N19 PCLK_N M19 REFRES H19 XOEN E20 STBY D20 HSDOUT F20 HSD3_P D21 HSD3_N D22 HSD2_P E21 HSD2_N E22 HSD1_P F21 HSD1_N F22 HSD0_P G21 HSD0_N G22 HSCLK_P H21 HSCLK_N H...

Page 54: ... 3V VCC3 3V C709 0 1uF 16V 1005 R703 1K 1005 R706 1 2K 1005 SB9121 IC601 VDAC_SDA C10 VDAC_SCL A9 VCLK27 C11 VCLK B9 ACLK B13 ACLK27 A13 ADAC_SDA A14 ADAC_SCL C13 IC702 CDCE925PWR 3 VDD 2 S0 4 VCTR 1 XIN CLK 6 VDDOUT_1 5 GND_1 7 Y4 8 Y5 9 VDDOUT_2 10 Y3 11 Y2 12 GND_2 13 Y1 14 S2 SCL 15 S1 SDA 16 XOUT IC704 CDCE925PWR 3 VDD 2 S0 4 VCTR 1 XIN CLK 6 VDDOUT_1 5 GND_1 7 Y4 8 Y5 9 VDDOUT_2 10 Y3 11 Y2 ...

Page 55: ...TP804 TP805 TP806 TP807 TP808 R801 4 7K 1005 OPT R802 4 7K 1005 OPT R803 4 7K 1005 OPT VIDEO_D27 12 S17 VIDEO_D26 12 S17 VIDEO_D25 12 S17 VIDEO_D24 12 S17 VIDEO_D15 12 M23 VIDEO_D14 12 M23 VIDEO_D13 12 M23 VIDEO_D04 12 K23 VIDEO_D01 12 J23 IC601 SB9121 D35 K1 D34 K2 D33 K3 D32 J1 D31 J2 D30 J3 D29 H1 D28 H2 D27 H3 D26 G1 D25 G2 D24 G3 D23 F1 D22 F2 D21 F3 D20 E1 D19 E2 D18 E3 D17 D1 D16 D2 D15 D3 ...

Page 56: ...0 GPIO 3 AB9 GPIO 2 AA10 GPIO 1 AB10 GPIO 0 Y11 RST AA6 CS1 Y6 CS0 AA4 SDI Y4 SDO Y5 SCLK AA5 SCL AB6 SDA AA7 I2CSEL Y8 INT AB5 VSS_130 Y7 SXTALI B12 SXTALO A12 VCC3 3V R923 4 7K 1005 GPIO3 7 AF10 TP911 TP908 GPIO5 7 AF22 R931 4 7K 1005 R926 4 7K 1005 R935 4 7K 1005 TP912 TP910 TP913 R928 4 7K 1005 VCC3 3V R929 4 7K 1005 GPIO4 7 AF10 TP915 R933 4 7K 1005 TP907 R927 4 7K 1005 R924 4 7K 1005 R925 4 ...

Page 57: ...C16 NC_2 A17 NC_7 B17 NC_13 C17 NC_3 A18 NC_8 B18 NC_14 C18 NC_4 A19 NC_9 B19 NC_15 C19 NC_5 A20 NC_10 B20 NC_16 C20 NC_20 U20 NC_21 V20 NC_24 W22 NC_23 W21 NC_22 W20 NC_36 Y22 NC_35 Y21 NC_34 Y20 NC_33 Y19 NC_44 AA19 NC_32 Y18 NC_43 AA18 NC_52 AB18 NC_31 Y17 NC_42 AA17 NC_51 AB17 NC_30 Y16 NC_41 AA16 NC_50 AB16 NC_29 Y15 NC_40 AA15 NC_49 AB15 NC_28 Y14 NC_39 AA14 NC_48 AB14 NC_27 Y13 NC_38 AA13 N...

Page 58: ... VDDIO_8 E17 VDDIO_9 F4 VDDIO_10 F5 VDDIO_11 G4 VDDIO_12 G5 VDDIO_13 K4 VDDIO_14 L4 VDDIO_15 P5 VDDIO_16 R5 VDDIO_18 V6 VDDIO_19 V7 VDDIO_22 W6 VDDIO_23 W7 VDDIO_24 W10 VDDIO_25 W11 VDDIO_20 V14 VDDIO_21 V15 VDDIO_17 U19 IC601 SB9121 VSS_61 L16 VSS_60 L15 VSS_59 L14 VSS_58 L13 VSS_57 L12 VSS_56 L11 VSS_55 L10 VSS_54 L9 VSS_53 L8 VSS_52 L7 VSS_51 K16 VSS_50 K15 VSS_49 K14 VSS_48 K13 VSS_47 K12 VSS_...

Page 59: ...8 0 1005 OPT R1220 0 1005 I2C_SDA 9 AA17 N7 13 W14 13 AH10 R1219 0 1005 I2C_SCL 9 AA17 N7 13 W14 13 AH10 UART0_TXD 13 U14 UART0_RXD 13 U14 I2C_SCL1 13 W12 R1203 0 1005 OPT I2C_SDA1 13 W12 R1216 0 1005 OPT VIDEO_D00 8 X9 VIDEO_D01 8 X9 VIDEO_D02 8 P6 8 X9 VIDEO_D03 8 U6 8 X9 VIDEO_D12 8 X12 8 AA6 VIDEO_D13 8 X12 VIDEO_D14 8 X12 VIDEO_D15 8 X12 VIDEO_D24 8 X14 VIDEO_D25 8 X14 VIDEO_D26 8 X14 VIDEO_D...

Page 60: ...10 RG8 7 MCLR 8 PMA2 SS2 CN11 RG9 9 VSS_1 10 VDD_1 11 C1IN AN5 CN7 RB5 12 C1IN AN4 CN6 RB4 13 C2IN AN3 CN5 RB3 14 C2IN AN2 SS1 CN4 RB2 15 PGC1 EMUC1 AN1 VREF CVREF CN3 RB1 16 PGD1 EMUD1 PMA6 AN0 VREF CVREF CN2 RB0 17 PGC2 EMUC2 AN6 OCFA RB6 18 PGD2 EMUD2 AN7 RB7 19 AVDD 20 AVSS 21 U2CTS C1OUT AN8 RB8 22 PMA7 C2OUT AN9 RB9 23 TMS CVREFOUT PMA13 AN10 RB10 24 TDO PMA12 AN11 RB11 25 VSS_2 26 VDD_2 27 ...

Page 61: ......

Page 62: ...Trouble shooting Guide WIRELESS LH95 LCD TV Research Lab R D 3 Dept AJ Gr LG ELECTRONICS INC Trouble shooting p2 p6 About Wireless TV p7 p10 Block Diagram p11 p16 ...

Page 63: ...osd is displayed continually There is no video signal from Rx module to TV main ic so TV understand this time like disconnection state and display connecting osd continually And then if TV is not activated rightly within 15min it will go to st by mode No effect directly No effect directly No connection Check main ic basic power power sequence Control line check I2C etc Check input output video aud...

Page 64: ...s completed only Rx module No connection connection F Bad image No image IC s cold soldering or memory defect accompanied noise on osd Bad sound No sound No effect directly Check main ic basic power power sequence Check control line I2C etc Check input output video audio signal Check LVDS cable wafer locking There can be cable s defect g Bad image or No image No effect directly Ticon b d or Invert...

Page 65: ... blinking of Media Box front Wireless interference check Refer to the installation method guide Inner HDMI cable s connection status From Rx Tx module to Main Trouble shooting OSD OSD Check first when Wireless connection is disable Check Tip In some cases TV only or Wired mode make easy to check Caution Information TV set Media Box is just 1 1 connection No multiple device connection In order to d...

Page 66: ...ht remote controller button Check the Paired Status if changed from NG to OK If s w version of Tx Rx module TV Media box main isn t matched Wireless can t be connected So at that time check the version and upgrade by usb 4 Remove HDMI cable check wireless connection If connection is not completed power off and on the TV Media Box If there are 2 or more wireless tv set it s need to be set channel r...

Page 67: ...l LVDS NORMAL MODEL INPUT MAIN IC AV Component HDMI RGB Analog Digital WIRELESS MODEL TV SET SIGNAL CONVERTER DTC30LM36 SIL9134 LVDS MEDIA BOX TX MODULE HDMI SIL9125 SB9120 SB9110 RX MODULE SB9111 SB9121 SIL9134 MAIN IC LCD MODULE LGD V4 LVDS Wireless TV SET HDMI LGE3159 LGE3369 LGE7329 WIRELESS LH95 ...

Page 68: ... Box Main b d SIL9125 SB9120 B B SB9110 RF To TV Main b d HDMI Cable HDMI Cable SIL9134 SB9121 B B SB9111 RF PIC32MX MICOM TX Module RX Module Media Box TV SET TX module RX module About Wireless TV WIRELESS LH95 ...

Page 69: ...LR HR Unused LR HR Unused SB9110 SB9111 Top view of RF IC Antenna HRP Channel Fc HRP 60 48 LRP Channel About Wireless TV WIRELESS LH95 ...

Page 70: ... like this 60 32 60 48 60 64 First thing the LRP channel setting has to be matched in wired mode There are not only channel but also mac address that Tx Rx modules have it s own for preventing wireless interference Set the LRP channel and share the mac address each other that s called pairing After pairing Antenna search and set the wireless path by LRP and then send video audio data to HRP channe...

Page 71: ...r service WT61P8 Micom MODULE HDMI_3 HDMI_2 NOT FOR USER Connect to Rx b d IC104 IC103 IC102 X100 IC101 IC200 201 IC100 IC701 DDR2 512Mb X 2 DDR2 512Mb X 2 IC800 801 LG5110 Local dimming 24C32 IC901 IC400 IC1002 IC1000 IC900 X1000 JK500 JK504 IC300 JK505 JK300 RF Transceiver SB9111 Network Processor SB9121 HDMI Transmitter SiI9134 8p wafer 24 Wireless RX Module 5 0V 3 3V_L 2 5V_L 1 0V_L 2 5V_L 1 5...

Page 72: ...To TV For wireless HDMI In HDMI Out I2C IR For test LVDS TTL I2C SPI_CK CS D0 D1 Rear jack b d FE_SIF IF COMPONENT2 AV2 AV2_CVBS_IN COMP1_Y Pb Pr COMP2_Y Pb Pr Can Tuner TDFR Z751D Demodulator LG3900 RS 232C MAX3232CDR HDMI Splitter PI3HDMI1210 HDMI Transmitter SiI9134 LVDS Receiver THC63LVD1024 DTC30LM36 Serial Flash For Boot DDR2 SDRAM 1Gbit HYNIX ELPIDA DDR2 SDRAM 512Mbit HYNIX ELPIDA MICOM Wel...

Page 73: ...cessor SB9120 HDMI Receiver SiI9125 30 I2C_CH2 HDMI D3 3V_HDMI D3 3V_L D3 3V_2 D3 3V_2 D1 8V_1 D3 3V_3 D5 0V_1 HDMI TX_SEL D1 26V _VDDC D1 8V_DD R 3 3V_V DDP CEC_TX WiHD TX I F I2C_CH4 24 Wireless Module D5 0V_W 3 3V_L 2 5V_L 1 0V_L 2 5V_L 1 5V_L 1 2V_L 1 0V_L 3 3V_L 1 8V_L Composite Video IN Component Y Pb Pr IN ANT CABLE IN RGB IN HDMI IN x4 HDMI OUT 5 0V_TU I2C_CH2 Demod repeater FE_VMAIN FRONT...

Page 74: ...120 HDMI Receiver SiI9125 HDMI Wireless Module 3 3V_L 2 5V_L 1 0V_L 2 5V_L 1 5V_L 1 2V_L 1 0V_L 3 3V_L 1 8V_L HDMI OUT HDMI DTMB DVB C Demodulator LG3900 3 3V_DTMB 1 2V_DTMB I2C_CH2 3 3VA_DTMB Analog D TMB Half NIM TUNER ANT CABLE IN 5 0V_TU I2C_CH2 Demod repeater LCD PDP DIGITAL TV PROCESSOR MSD3369GV I2C_CH1 D1 26V _VDDC D1 8V_DD R 3 3V_V DDP I2C_CH2 I2C_CH4 D3 3V_ 1 HDMI TX_SEL D3 3V_L Composit...

Page 75: ...ontrol SLEEP XTAL 3 6864MHz OSC 54MHz Embedded CPU SiI9125 HDMI Receiver MX1605 Serial Flash SPI Bus 4line D 35 0 H VSYNC DE IDCK I2S SPDIFI I2C 2line DDC 2line TMDS 8line HDMI_RST SiBEAM_INT HDMI_INT Power 3 3V 2 5V 1 5V 1 2V 1 0V SiBEAM_RST Power Source 5V MCLK SCK W S XTAL 28 322MHz Control Power CABLE 12p HDMI CABLE ...

Page 76: ...I2S 4line SPDIFO I2C 2line DDC 2line TMDS 8line RST INT INT Power 3 3V 2 5V 1 5V 1 2V 1 0V VCXO VCXO Video PLL Video DAC Audio PLL Audio DAC I2C I2C ACLK VCLK Micom PIC32MX340F256H RST Power Source 5V ADCI_P N ADCQ_P N PCLK_P N DACI_P N DACQ_P N RF Control SLEEP XTAL 3 6864MHz OSC 54MHz MCLK SCK W S I2C 2line XTAL 27MHz XTAL 27MHz Power CABLE 8p HDMI CABLE ...

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Summary of Contents for 55LH95QD

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LG 55LH95QD, Service Manual, Page: 2 / 76

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Summary of Contents for 55LH95QD

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