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LCD TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LP81A

MODEL : 32LF15R

32LF15R-MA

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 : MFL41394480 (0904-REV00)

Содержание 32LF15R

Страница 1: ...READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LP81A MODEL 32LF15R 32LF15R MA 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 MFL41394480 0904 REV00 ...

Страница 2: ...t 2009 LG Electronics Inc All right reserved Only for training and service purposes 2 CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 TROUBLE SHOOTING 13 BLOCK DIAGRAM 18 EXPLODED VIEW 19 SVC SHEET ...

Страница 3: ... 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 terminals...

Страница 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...

Страница 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 replac...

Страница 6: ...or to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC Specification EMC CE IEC SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 4 General Specification LCD Module Item Specification Measurement Result Remark Display Screen Device 26 wide Color Display Module Resolution 1366X768 32 w...

Страница 7: ...A AV Output 1EA Component Input 1EA HDMI Input 1EA Audio Input 2EA Resolution H freq kHz V freq kHz Pixel clock MHz Proposed 720 480 15 73 59 94 13 500 SDTV DVD 480I 525I 720 480 15 75 60 00 13 514 SDTV DVD 480I 525I 720 576 15 625 50 00 13 500 SDTV DVD 576I 625I 50Hz 720 480 31 47 59 94 27 000 SDTV 480P 720 480 31 50 60 00 27 027 SDTV 480P 720 576 31 25 50 00 27 000 SDTV 576P 50Hz 1280 720 44 96 ...

Страница 8: ...VD 576I 625I 50Hz 720 480 31 47 59 94 27 SDTV 480P 720 480 31 5 60 27 027 SDTV 480P 720 576 31 25 50 27 SDTV 576P 1280 720 44 96 59 94 74 176 HDTV 720P 1280 720 45 60 74 25 HDTV 720P 1280 720 37 5 50 74 25 HDTV 720P 1920 1080 28 125 50 74 25 HDTV 1080I 1920 1080 33 72 59 94 74 176 HDTV 1080I 1920 1080 33 75 60 74 25 HDTV 1080I 1920 1080 56 25 50 148 5 HDTV 1080P 1920 1080 67 432 59 94 148 350 HDTV...

Страница 9: ...r about 5 minutes prior to the adjustment when module is in the circumstance of over 15º In case of keeping module is in the circumstance of 0 C it should be placed in the circumstance of above 15ºC for 2 hours In case of keeping module is in the circumstance of below 20ºC it should be placed in the circumstance of above 15ºC for 3 hours 3 PCB assembly adjustment method 3 1 Mstar Main S W program ...

Страница 10: ...e option the input menu can differ the model spec Refer to Job Expression of each main chassis ass y EBTxxxxxxxx for Option value Before PCBA check you have to change the Tool option Area option and have to AC off on Plug out and in After Tool Option Area Option change you have to AC power off Never push the IN STOP KEY after completing the function inspection 3 4 Check SW Version 1 Method 1 Push ...

Страница 11: ...DC adjust mode release by exit key and release DDC adjust mode 3 Enter the adjust mode of white balance Enter the white balance adjustment mode with aging command F3 00 FF Luminance min value is 200cd m2 in the cool mode For LCD 4 4 Adjustment of White Balance for Manual adjustment 1 Adjustment mode Two modes Cool and Warm Medium data is automatically calibrated by the Cool data 2 Color analyzer C...

Страница 12: ...ddress of E2PROM by 128 80h byte Adjustment Aging On Off Input select R GAIN G GAIN B GAIN R GAIN G GAIN B GAIN R GAIN G GAIN B GAIN CSM mode AUTO ADC EEPROM Read EEPROMWrite CMD HEX F3 F4 16 18 1A 16 18 1A 16 18 1A F2 F1 E7 E8 ADR 00 00 00 01 02 00 00 00 00 VALUE FF 00 00 C0 00 C0 00 C0 00 C0 00 C0 00 C0 00 C0 00 C0 00 C0 00 01 02 0 1 2 00 data detail FF ON OO OFF 0x10 TV 0x20 AV1 0x21 AV2 0x40 C...

Страница 13: ...DISPLAY MODULE HDMI TMDS351PAG HDMI MUX DDR MEM SERIAL FLASH Mstar Romeo LGE6891CD NTP3000A Digital Audio AMP MAIN NVM MC74HC4066 Audio SW LM324 X4 AMP EDID NVM DDC HDP CEC TMDS HDMI in PART_I2C SW_RESET I2S OUT LVDS TMDS HDMI in DDC HPD HDMI MUX direct JACK to MAIN IC DDC AUDIO_SW LINE IN LINE IN Y Pb Pr IN DSUB_DDC x0 55 LINE_MUTE LINE OUT CVBS OUT x4 x0 55 LINE IN CVBS IN SIF IN TUNER_I2C PART_...

Страница 14: ...ont LED 2 Check process Plug in the power cord No Yes Is the power cord plugged in Connect the cable to SC100 No Yes Are the line filter and PSU connected Replace the fuse No Yes Is the fuse of PSU normal F101 Connect a cable P1100 After all cables connect is removed to PSU the AC voltage marking is authorized on manual When ST BY 5V is not operated replace PSU No Yes Is it connected that PSU and ...

Страница 15: ...d Does minute discharge at Module Is the inverter VaVs on Is output the normality Low High voltage except Stand by 5V Yes No No Is the link cable normal Yes Is the IC801 s output normal Reconnect Panel line cable HD P403 No Replace the VSC No Yes Check the power Is video output of the Tuner normal Check TU500_Pin13 Is the input voltage normal Check Pin3 Is the I2C communication normal Check Pin9 P...

Страница 16: ... service purposes 16 4 Unusual display from rear AV mode Yes Is video input of the A V Jack normal Check R8044 Check the input source Same as Block A No 5 Unusual display from component 2 model Yes Is video input of the Component Jack normal Check R8030 32 33 Check the input source Change IC801 No ...

Страница 17: ...eck the Speaker cable No Replace IC600 No Replace IC801 No Yes Yes All input mode is no sound Only HDMI is no sound Is the speaker cable normal Is the speaker on it menu Yes Only AV COM2 PC input is no sound Is the output of IC600 normal Yes Yes Only RF is no sound Yes Is IC801 operated normality Yes Replace IC601 Replace Main B D No Is IC601 operated normality Yes 6 No Sound 1 Symptom 1 LED is gr...

Страница 18: ... al AMP IC600 COMP IN JK101 IIC_DSUB CVBS_VIN COMP Y Pb Pr TV_MAIN MAIN_SIF SIF AM_AUDIO COMP_LR MNT_LR_OUT SPK 2CH SPK_HOTEL SWITCH DUAL FET SWITCH DUAL FET LVDS_PWR_12V RL_ON 12V 24C64 EEPROM DDC HDMI_5V_DET HPD HPD_MST CVBS_L RIN MNT_VOUT AMP GAIN X 4 MUTE_LINE AMP GAIN X 4 IC601 24C64 EEPROM DDC IIC_SYS SECAM_L DDR IC900 DDR IC900 MADR 0 11 MDATA 0 15 SW_RESET IIC_PART I2S MUTE_MAIN AC_DET AMP...

Страница 19: ... 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 IMPORTA...

Страница 20: ...7 18K R1106 33K R1140 33K R1141 2 2K R1152 2 2K R1154 2 2K R1153 330 1 R1194 USB 100uF 16V C1151 USB 5V_USB AZ1117H ADJTRE1 EH11A IC1107 USB 2 OUTPUT 3 INPUT 1 ADJ GND 0 1 u F C1120 USB 110 1 R1195 USB 1 10W 100 5 R1139 1 PWM_DIM 1 10W 1K 5 R1139 DC_DIM 0 R1163 S2A D1102 50V 10uF C1152 4 7uF C1117 10K READY R1196 0 SHARP 52 AUO R1197 0 CMO 32 42 47 R1185 0 NOT CMO 32 42 47 57 SHARP 32 R1183 0 CMO ...

Страница 21: ... AVS_2 18 NC_2 19 VSS_1 20 VS 21 HS 22 MPOUT 23 CLKX2 24 VSSE_1 25 VDDE_2 26 VD 15 27 VD 14 28 VD 13 29 VD 12 30 VD 11 31 NC_3 32 VDD 33 VD 10 34 VD 9 35 VD 8 36 VD 7 37 VD 6 38 VD 5 39 VD 4 40 VD 3 41 VD 2 42 VSS_2 43 NC_4 44 VD 1 45 VD 0 SIAD0 46 VSSE_2 47 XTI 48 XTO 3 3V 47uF16V C1010 SDA_Part 0 01uF C1001 27MHz X1000 0 1uF C1008 100 R1003 100 R1002 0 1uF C1004 0 1uF C1002 0 1uF C1003 SW_RESET ...

Страница 22: ...9 A0 30 A1 31 A2 32 A3 33 VDD_3 34 VSS_1 35 A4 36 A5 37 A6 38 A7 39 A8 40 A9 41 A11 42 A12 NC_5 43 NC_6 44 CKE 45 CK 46 CK 47 UDM 48 VSS_2 49 VREF 50 NC_7 17 A13 NC_2 3 VDDQ_1 6 VSSQ_1 16 LDQS 15 VDDQ_3 14 NC_1 13 DQ7 12 VSSQ_2 11 DQ6 10 DQ5 9 VDDQ_2 8 DQ4 7 DQ3 4 DQ1 5 DQ2 25 NC_4 24 CS 23 RAS 2 DQ0 22 CAS 21 WE 1 VDD_1 20 LDM 19 NC_3 18 VDD_2 51 UDQS 52 VSSQ_3 53 NC_8 54 DQ8 55 VDDQ_4 56 DQ9 57 ...

Страница 23: ...6 117 MDATA 5 118 MDATA 4 119 VDDM_119 120 MDATA 3 121 MDATA 2 122 MDATA 1 123 MDATA 0 124 DQS 0 125 LDQM 126 UDQM 127 MVREF 128 MCLKE 129 MCLKZ 130 MCLK 131 BADR 1 132 BADR 0 133 RASZ 134 GND_134 135 VDDM_135 136 AVDD_MEMPLL 137 CASZ 138 WEZ 139 MADR 0 140 MADR 1 141 MADR 2 142 MADR 3 143 MADR 4 144 MADR 5 145 MADR 6 146 MADR 7 147 VDDM_147 148 GND_148 149 VDDC_149 150 MADR 8 151 MADR 9 152 MADR ...

Страница 24: ...24 125 126 127 128 HY57V641620FTP IC704 26 A3 27 VDD3 28 VSS1 29 A4 30 A5 31 A6 32 A7 33 A8 34 A9 35 A11 36 NC1 37 CKE 38 CLK 39 UDQM 40 NC2 41 VSS2 42 DQ8 43 VDDQ3 44 DQ9 45 DQ10 46 VSSQ3 47 DQ11 48 DQ12 49 VDDQ4 50 DQ13 17 CAS 3 VDDQ1 6 VSSQ1 16 WE 15 LDQM 14 VDD2 13 DQ7 12 VSSQ2 11 DQ6 10 DQ5 9 VDDQ2 8 DQ4 7 DQ3 4 DQ1 5 DQ2 25 A2 24 A1 23 A0 2 DQ0 22 A10 AP 21 BA1 1 VDD1 20 BA0 19 CS 18 RAS 51 ...

Страница 25: ...7 1uF C624 10uF 16V C600 3 3V 100pF C601 SCL_Part 1000pF C635 1000pF C634 SPK_L 330uF 35V C612 1000pF C631 0 HOTEL_OPT R642 SPK_R 100 R601 16V_NTP 1000pF C606 0 01uF C638 16V_NTP 4 7K R627 16V_NTP SPK_R 100 R602 I2S_MCLK 0 01uF C647 1 8V_AVDD 0 01uF C613 10uF 16V C609 100pF READY C642 DA 8580 EAP38319001 L603 2S 1S 1F 2F 22000pF C616 0 1uF C607 3 3K R600 1000pF C603 16V_NTP 3 3 R636 1 8V_AVDD AC_D...

Страница 26: ... R505 4700pF C506 220 R521 2SA1530A T112 1R Q502 E B C RT1C3904 T112 Q501 E B C 0 R519 0 R518 TAFT Z703D TU500 NON EU TUNER 14 AFT 13 V OUT 5 RF_AGC 12 NC_4 11 AS 2 GND_1 19 NC_7 18 NC_6 10 CLOCK 4 NC_2 1 NC_1 17 NC_5 9 DATA 8 GND_2 3 B 5V 16 SIF OUT 7 NC_3 6 TP 33V_OPTION 15 A OUT 21 SHIELD 20 NC_8 BLM18BD102SN1D L502 READY TAFT H703F TU500 1 NTSC TUNER 14 AFT 13 V OUT 5 RF_AGC 12 NC_4 11 AS 2 GN...

Страница 27: ...0K R443 IR OUT 5V_ST 10K R441 IR OUT 47K R439 IR OUT 22 R442 IR OUT IR 10K R414 LG60 10K READY R403 22uF 16V C406 3 3V_MST 5 6 B ZD400 LG60 2SC3052 Q405 IR OUT E B C 2SC3052 Q404 IR OUT E B C 2SA1530A T112 1R Q406 LG60 E B C 5V_ST_SW 3 3K R445 LG60 3 3K R444 LG60 0 CPT R428 0 READY R415 0 NOT LG60 R404 0 R405 UBW2012 121F 120OHM L404 UBW2012 121F 120OHM L407 USE LG50_60_70 BG1608B501F L410 BEAD_US...

Страница 28: ...3 GND_1 4 B31 5 A31 6 VCC_1 7 B32 8 A32 9 GND_2 10 B33 11 A33 12 VCC_2 13 B34 14 A34 15 GND_3 16 VSADJ 17 Y4 18 Z4 19 VCC_3 20 Y3 21 Z3 22 GND_4 23 Y2 24 Z2 25 VCC_4 26 Y1 27 Z1 28 GND_5 29 SCL_SINK 30 SDA_SINK 31 HPD_SINK 32 S1 33 S2 34 EQ 35 HPD1 36 SDA1 37 SCL1 38 B11 39 A11 40 VCC_5 41 B12 42 A12 43 GND_6 44 B13 45 A13 46 VCC_6 47 B14 48 A14 49 VDD 50 HPD2 51 SDA2 52 SCL2 53 B21 54 A21 55 VCC_...

Страница 29: ...219 0 R214 HOTEL_OPT 0 R213 HOTEL_OPT SPK_R _HOTEL SPK_R _HOTEL 12K R248 12K R250 10K R247 10K R249 OPT C210 BB_READY PPJ150 09 JK200 3A RD O_SPRING1 2A RD 1P_CAN1 4A RD CONTACT1 2B WH 1P_CAN1 3B WH 0_SPRING1 2C YL 1P_CAN1 3C YL O_SPRING1 4C YL CONTACT1 2D RD 1P_CAN2 3D RD O_SPRING2 4D RD CONTACT2 2E WH 1P_CAN2 3E WH 0_SPRING2 2F YL 1P_CAN2 3F YL O_SPRING2 4F YL CONTACT2 RT1C3904 T112 Q202 E B C R...

Страница 30: ... 4 7K R112 68 R115 0 1uF C101 PC_R PC_B PC_VS 68pF C103 PC_HS 0 1uF C105 4 7K R113 68pF C104 CDS3C30GTH 30V D113 100 R124 100 R128 4 7K R150 READY 5V_ST 100 R129 100 R130 0 1uF C110 0 1uF C106 100 R131 OPT C111 TXD 0 1uF C108 0 1uF C109 OPT C112 RXD CDS3C30GTH 30V D121 0 1uF C107 4 7K R151 READY 3 3V_MST CDS3C30GTH 30V D120 5V_ST ENKMC2837 T112 D109 A AC C ENKMC2837 T112 D111 A AC C ENKMC2837 T112...

Страница 31: ......

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