LG 32LD310H Page 50 Service Manual Download | Manualshive

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Analog RF Audio Trouble shooting guide

Check TU5001 Pin9(SIF)
Can you see the normal signal?

Check the input of Mstar (IC101).
Measure waveform at C250 because it’s more easy to check.
Can you see the normal waveform?

YES

NO

Could you measure voltage of TU5001& IIC lines?
Are they all normal?

NO

You should check power line
& IIC lines.

YES

You should replace TUNER.

NO

After checking audio signal line, you should decide to replace item or not.

Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

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Summary of Contents for 32LD310H

Page 1: ...FETY PRECAUTIONS IN THIS MANUAL CHASSIS LA06A MODEL 32LD310H 32LD310H UA 32LD320H 32LD320H UA 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 MFL66280202 1101 REV01 ...

Page 2: ...nal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 2 CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 EXPLODED VIEW 19 SVC SHEET ...

Page 3: ...perate 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 p...

Page 4: ...n 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 b...

Page 5: ...e 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 replaced...

Page 6: ... 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety UL CSA IEC specification EMC FCC ICES IEC specification 6 SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 4 General Specification TV No Item Specification Remark 1 Receivable System 1 ATSC NTSC M 2 Available Channel 1 VHF...

Page 7: ... Y 0 603 BLUE X 0 146 Y 0 061 WHITE X 0 279 Y 0 292 4 Contrast ratio 800 1200 EPA 4 0 except RGB mode 10 000 1 50 000 1 6 Color Temperature Cool Typ 0 269 Typ The W B Tolerance is 0 015 0 273 0 015 0 015 for Adjustment Medium Typ 0 285 Typ 0 015 0 293 0 015 Warm Typ 0 313 Typ 0 015 0 329 0 015 EPA 4 0 Luminance To qualify as ENERGY STAR under this specification the peak luminance of the product in...

Page 8: ...080 67 500 60 148 50 HDTV 1080P 10 1920 1080 67 432 59 94 148 352 HDTV 1080P 11 1920 1080 27 000 24 000 74 25 HDTV 1080P 12 1920 1080 26 97 23 976 74 176 HDTV 1080P 13 1920 1080 33 75 30 000 74 25 HDTV 1080P 14 1920 1080 33 71 29 97 740176 HDTV 1080P 7 RGB Input PC No Resolution H freq kHz V freq kHz Pixel clock Proposed PC DDC 1 640 350 31 468 70 09 25 17 EGA X 2 720 400 31 469 70 08 28 32 DOS O ...

Page 9: ...A WXGA O 8 1280 1024 63 981 60 020 108 00 VESA SXGA O 9 1600 1200 75 000 60 000 162 VESA UXGA X 10 1920 1080 67 500 60 000 148 50 HDTV 1080P O DTV 1 720 480 31 50 60 27 027 SDTV 480P O 2 720 480 31 47 59 94 27 00 SDTV 480P O 3 1280 720 45 00 60 00 74 25 HDTV 720P O 4 1280 720 44 96 59 94 74 176 HDTV 720P O 5 1920 1080 33 75 60 00 74 25 HDTV 1080I O 6 1920 1080 33 72 59 94 74 176 HDTV 1080I O 7 192...

Page 10: ...evel and Final assembly adjustment items can be check using In Star Menu 1 ADJUST CHECK Component 1080p RGB PC Adjust will be calculated by 480i adjust value 3 2 Final assembly adjustment White Balance adjustment RS 232C functionality check Factory Option setting per destination Ship out mode setting In Stop 3 3 Etc Ship out mode Tool option menu USB Download S W Update Option Service only ISP Dow...

Page 11: ...nt Fail is displayed 6 If ADC calibration is failure after rechecking ADC pattern or condition retry calibration 7 After completing ADC Component input mode will be changed to RGB automatically 8 If ADC calibration is successful ADC RGB Success is displayed If ADC calibration is failure ADC RGB Fail is displayed 9 If ADC calibration is failure after recheck ACD pattern or condition retry calibrati...

Page 12: ... Medium Cool 6 Remove probe and RS 232C cable to complete adj W B Adj must begin as start command wb 00 00 and finish as end command wb 00 ff and Adj offset if need 6 Manual adj method 1 Set TV in Adj mode using POWER ON 2 Zero Calibrate the probe of Color Analyzer then place it on the center of LCD module within 10cm of the surface 3 Press ADJ key EZ adjust using adj R C 6 White Balance then pres...

Page 13: ...hassis applied None USA model CANADA MEXICO 5 5 2 Method 1 Press ADJ key on the Adj R C then select Country Group Meun 2 Depending on destination select KR or US then on the lower Country option select US CA MX Selection is done using KEY 5 6 Tool Option selection Method Press Adj key on the Adj R C then select Tool option 5 7 hip out mode check In stop After final inspection press In Stop key of ...

Page 14: ...point TEST voltage GND 1 5KV min at 100mA SIGNAL 3KV min at 100mA TEST time 1 second TEST POINT GND TEST POWER CORD GND SIGNAL CABLE METAL GND Internal Pressure TEST POWER CORD GND LIVE NEUTRAL LEAKAGE CURRENT At 0 5mArms 7 Audio Measurement condition 1 RF input Mono 1KHz sine wave signal 100 Modulation 2 CVBS Component 1KHz sine wave signal 0 4Vrms 3 RGB PC 1KHz sine wave signal 0 7Vrms LGE Inter...

Page 15: ...ge If downloading version is more high than your TV have TV can lost all channel data In this case you have to channel recover if all channel data is cleared you didn t have a DTV ATV test on production line After downloading have to adjust TOOL OPTION again 1 Push IN START key in service remote controller 2 Select Tool Option 1 and Push OK button 3 Punch in the number Each model has their number ...

Page 16: ...using adjust remote control b Then tuning the channel 96 1 Lodgenet digital1 automatically c Check it whether the video is clear and 1 5 factor OK like below picture IR IN IR OUT SPI TEST MPI TEST 12V IN If you find any problem press Eye button and retest 10 1 2 Needs JIG Equip Cable 1 adjust remote control 2 commercial check jig adapter 3 11 pin cable 4 Phone jack Cable 10 2 Auto camport test Aft...

Page 17: ... 1000 TOP2 JIG 11pin Connection UTC 1000 RF1 b_LAN RF IN UTC 1000 LAN PC LAN Port 2 Working procedure 1 Connection UTC 1000 LAN PC LAN Port UTC 1000 TOP1 Game port RJ21 TV LINK CFG Phone Jack UTC 1000 RF1 b_LAN RF IN 2 Power on JIG 3 Test Start UTC 1000 TOP2 JIG 11pin Connection 4 Checking b LAN MAC Address Check whether it is same their address numbers or not between B LAN Label and on the pc add...

Page 18: ...N Application version 3 Check whether it is same their address numbers or not between B LAN Label and 2 MAC Address on the pc 11 Serial number download Connect Bar Code scan equipment and TV set by RS 232C cable 1 E2PROM Data Write 2 E2PROM Data Read LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes ...

Page 19: ...al 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 permission of manufacturer I...

Page 20: ...15 IO3_5 N16 IO3_6 K12 IO3_7 K14 IO3_8 L12 IO3_9 N14 IO3_10 M13 IO3_11 M14 IO3_12 L13 IO3_13 M15 IO3_14 M16 IO3_15 L14 IO3_16 L15 IO3_17 L16 IO3_18 K16 IO3_19 K15 IO3_20 J 1 6 IO3_21 H16 CLK3 G16 CLK2 H12 IO3_22 G14 IO3_23 G13 IO3_24 G15 IO3_25 F16 IO3_26 F14 IO3_27 F13 IO3_28 F15 IO3_29 E16 IO3_30 E15 IO3_31 D16 IO3_32 D15 IO3_33 F12 IO3_35 E13 IO3_36 H13 IO3_38 G12 IO3_39 B16 IO3_40 C15 IO3_41 C...

Page 21: ...r COMP1_Y 0 R3811 12K R3829 10pF 50V OPT C3802 10K R3826 30V D3805 AV_R_IN COMP1_Pb COMP1_L_IN 1000pF 50V C3809 10K R3825 5 6V D3807 12K R3828 10K R3824 12K R3830 75 R3812 PPJ238 01 JK3801 5D GN2 O SPRING 6D GN2 E LUG 4D GN2 CONTACT 7E BL2 E LUG S 5E BL2 O SPRING 7F RD2 E LUG S 5F RD2 O SPRING_1 5G WH2 O SPRING 4H RD2 CONTACT 5H RD2 O SPRING_2 6H RD2 E LUG 6A YL1 E LUG 5A YL1 O SPRING 4A YL1 CONTA...

Page 22: ...V4N RED 0 Y26 A4P RLV5P GREEN 9 Y25 A4M RLV5N GREEN 8 Y24 BCKP TCON13 GREEN 1 AC26 BCKM TCON12 GREEN 0 AC25 B0P RLV6P GREEN 7 AA26 B0M RLV6N GREEN 6 AA25 B1P RLV7P GREEN 5 AA24 B1M RLV7N GREEN 4 AB26 B2P RLV8P GREEN 3 AB25 B2M RLV8N GREEN 2 AB24 B3P TCON11 BLUE 9 AC24 B3M TCON10 BLUE 8 AD26 B4P TCON9 BLUE 7 AD25 B4M TCON8 BLUE 6 AD24 CCKP LLV3P AD23 CCKM LLV3N AE23 C0P LLV0P BLUE 5 AE26 C0M LLV0N ...

Page 23: ... GND 3 VCC 2 RESET 10K R459 100 R480 PD_ 12V 4 7uF 16V C443 22uF 10V C420 22uF 10V C469 22uF 10V C471 FW20020 24S P403 NORMAL_EXPEPT_32 19 14 9 4 18 13 8 3 17 12 7 2 16 11 6 1 20 15 10 5 21 22 23 24 0 POWER_18_A_DIM R451 0 POWER_20_A_DIM R453 1uF 25V OPT C484 V_SYNC 0 POWER_20_PWM_DIM R484 CIC21J501NE L424 0 1uF 16V C485 0 POWER_22_A_DIM R485 3 3V_Normal 4 7K R486 OPT 22 R487 100K R488 47K R429 0 ...

Page 24: ...03 100 R6001 RJP 10K R6014 RJP 100K R6011 OPT 2K R6007 RJP 0 0 1 u F C6016 RJP 47uF 25V C6018 RJP 4 7uF 25V OPT C6010 12V 15V RJP_CTRL1 016 E17 016 M13 RJP_CTRL0 016 A18 016 M13 5 1K R6009 RJP 5 1V ZD6006 RJP 10K R6006 RJP 2K R6010 RJP 100 R6004 RJP 100 R6000 RJP_CTRL4 016 A12 016 M12 5 1V ZD6005 RJP 100 R6002OPT MJ 657PT 8 SD JK6000 RJP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 5 1V ZD6007 RJP 0 0 1 u ...

Page 25: ... OPT R1129 3 3K R1125 1 6K R1118 6 8K OPT R1127 0 1uF OPT C1132 1uF 50V C1136 0 R1122 2SC3052 Q1118 E B C 0 R1145 1uF 10V OPT C1137 10uF 16V C1134 1K R1116 10uF 6 3V C1131 5V_Normal 1uF 10V C1133 2SA1530A T112 1R Q1117 E B C 4 7K R1131 EXT_SPK_L 009 AF24 390 R1117 TPA6011A4PWPRG4 IC1100 3 PVDD_1 2 ROUT 4 RHPIN 1 PGND_1 6 RIN 5 RLINEIN 7 VDD 8 LIN 9 LLINEIN 10 LHPIN 11 PVDD_2 12 LOUT 13 PGND_2 14 L...

Page 26: ... 100 R1008 2SC3875S ALY Q1002 E B C 2SC3875S ALY Q1004 E B C 1K R1036 UART3_RX 010 K23 016 N14 016 Y25 016 AA4 S7_RX 001 X17 SDC15 D1005 A1 C A2 RS232_RX 010 N15 0 047uF C1007 10K R1031 5V_ST 3 5V_ST TP1001 100 R1020 SDC15 D1006 A1 C A2 2SC3875S ALY Q1005 E B C UART3_RX 010 N14 016 N14 016 Y25 016 AA4 OPT R1038 2SC3875S ALY Q1000 E B C 470K R1017 SIDE_AV_OPT 30V SIDE_AV_OPT D1000 10K R1018 SIDE_AV...

Page 27: ...K TCON_47_FHD R636 5 1 180K 1 TCON_47_FHD R635 5 220K TCON_47_FHD 1 R611 5 27K 1 TCON_55_FHD R637 6 150K TCON_55_FHD 1 R643 6 180K TCON_55_FHD 1 R609 6 68K 1 TCON_55_FHD R610 6 56K TCON_55_FHD 1 R611 6 510K 1 TCON_55_FHD R620 6 27K 1 TCON_55_FHD R622 6 68K 1 TCON_55_FHD R621 6 150K 1 TCON_55_FHD R635 6 75K TCON_55_FHD 1 R636 6 15K 1 TCON_55_FHD R641 6 27K 1 TCON_42_FHD R637 3 150K TCON_42_FHD R643...

Page 28: ...7 F1 VDDQ_8 H2 VDDQ_9 H9 NC_1 J1 NC_2 J9 NC_3 L1 NC_4 L9 NC_6 T7 VSS_1 A9 VSS_2 B3 VSS_3 E1 VSS_4 G8 VSS_5 J2 VSS_6 J8 VSS_7 M1 VSS_8 M9 VSS_9 P1 VSS_10 P9 VSS_11 T1 VSS_12 T9 VSSQ_1 B1 VSSQ_2 B9 VSSQ_3 D1 VSSQ_4 D8 VSSQ_5 E2 VSSQ_6 E8 VSSQ_7 F9 VSSQ_8 G1 VSSQ_9 G9 H5TQ1G63BFR H9C IC1201 Hynix Korea A0 N3 A1 P7 A2 P3 A3 N2 A4 P8 A5 P2 A6 R8 A7 R2 A8 T8 A9 R3 A10 AP L7 A11 R7 A12 BC N7 A13 T3 A15 M...

Page 29: ...00V OPT D502 AUD_SCK 0 01uF 50V C543 OPT 0 1uF 50V C515 SPK_L 24V 10K R515 0 1uF 16V C513 0 1uF C509 0 1uF 16V C505 SPK_L 0 1uF 50V C526 2SC3052 Q501 E B C 3 3V_Normal 1000pF 50V C516 3 3 OPT R535 0 01uF 50V OPT C547 10uF 10V C501 OPT 10uF 10V C503 OPT 10uF 10V C511 OPT 12 R526 12 R522 12 R520 12 R525 12 R519 12 R524 12 R521 12 R523 22pF 50V OPT C546 22pF 50V OPT C545 22pF 50V OPT C544 TP502 0 R53...

Page 30: ...2_A3 AE2 FRC_DDR3_DQSL DDR2_DQS0 AF8 FRC_DDR3_DQSLB DDR2_DQSB0 AD9 FRC_DDR3_DQSU DDR2_DQS1 AE9 FRC_DDR3_DQSUB DDR2_DQSB1 AF9 FRC_DDR3_DML DDR2_DQ7 AE11 FRC_DDR3_DMU DDR2_DQ11 AF6 FRC_DDR3_DQL0 DDR2_DQ6 AE6 FRC_DDR3_DQL1 DDR2_DQ0 AF11 FRC_DDR3_DQL2 DDR2_DQ1 AD6 FRC_DDR3_DQL3 DDR2_DQ2 AD12 FRC_DDR3_DQL4 DDR2_DQ4 AE5 FRC_DDR3_DQL5 DDR2_NC AF12 FRC_DDR3_DQL6 DDR2_DQ3 AF5 FRC_DDR3_DQL7 DDR2_DQ5 AE12 FR...

Page 31: ...C_DA GPIO28 AB4 DDCDC_CK GPIO27 AA4 HOTPLUGC GPIO21 AC3 D_RXCP A2 D_RXCN A3 D_RX0P B3 D_RX0N A1 D_RX1P B1 D_RX1N B2 D_RX2P C2 D_RX2N C3 DDCDD_DA GPIO30 B4 DDCDD_CK GPIO29 C4 HOTPLUGD GPIO22 E5 CEC GPIO5 D6 HSYNC0 G5 VSYNC0 G6 RIN0P K1 RIN0M L3 GIN0P K3 GIN0M K2 BIN0P J3 BIN0M J2 SOGIN0 J1 HSYNC1 G4 VSYNC1 H6 RIN1P K5 RIN1M K4 GIN1P J4 GIN1M K6 BIN1P H4 BIN1M J6 SOGIN1 J5 HSYNC2 H5 RIN2P N3 RIN2M N...

Page 32: ... R693 0 47uF 25V C621 1uF 50V C615 0 047uF NON_GIP C677 VGH 25V VGH_M 25V 47K R605 OPT VGH 25V 10 R633 GIP 10 R630 GIP OPT R603 OPT 0 GIP R696 1M NON_GIP R698 10uF 16V C661 REF REF 10K R632 GIP 0 R627 1uF C617 50V 10 R629 GIP 10 R631 GIP EN2 1K R613 EN2 EN2 MMSD4148T1G 100V D606 OPT MMSD4148T1G 100V D607 VDD_LCM 16V 10K OPT R616 0 R638 OPT 200 NON_GIP R631 1 200 NON_GIP R629 1 12505WS 03A00 P700 U...

Page 33: ... D1 _HDMI2 2SC3052 Q801 E B C ENKMC2838 T112 D822 A1 C A2 0 R832 D0 _HDMI2 22 R875 DDC_SDA_2 0 R843 DDC_SDA_2 HPD2 EAG59023302 JK802 HDMI_1 14 13 5 D1_GND 20 SHIELD 12 11 2 D2_GND 19 18 10 CK 4 D1 1 D2 17 9 D0 8 D0_GND 3 D2 16 7 D0 6 D1 15 JP803 4 7K R889 5V_HDMI_2 D802 D1 _HDMI1 EDID_WP 22 R876 JP809 3 3K R802 ENKMC2838 T112 D821 A1 C A2 0 R829 5V_Normal 22 R806 22 R878 0 R846 CK _HDMI1 1 8K R803...

Page 34: ...12 011 X24 0 R2569 0 R1422 0 R1436OPT 0 R2529 0 R1491 MPI_DOUT 011 L20 0 R1431 0 R1437 12V_C 30V D1408 OPT BEXT_5V GND b_MPI_DOUT 016 AN18 011 S7 011 X25 0 R1414 0 R2568 0 R1401 0 R2531OPT bLAN_CTRL_PTC_0 016 X22 0 R1406 2 2K R1493 b_MPI_DIN 016 AI19 011 L20 011 S5 bLAN_IR_IN_MODEM 016 AN12 011 X5 011 X22 0 R2519 SI4925BDY Q1482 BLAN 3 S2 2 G1 4 G2 1 S1 5 D2_1 6 D2_2 7 D1_1 8 D1_2 SPI_CLOCK 011 M1...

Page 35: ...P2191SG 13 IC1500 3 IN_2 2 IN_1 4 EN 1 GND 5 FLG 6 OUT_1 7 OUT_2 8 NC 10uF 10V C1501 5V_USB 0 1uF C1502 4 7K OPT R1504 3 3V_Normal 0 R1505 USB1_CTL 10K R1503 47 R1500 USB1_OCD 0 5 1 10W R1514 DUM_SPI_CLOCK 016 Q6 DUM_SPI_DOUT 016 Q5 DUM_MPI_DOUT 016 AG12 IR_IN_MODEM 016 AN14 011 O16 011 X6 12V_C DUM_MPI_DIN 016 AI9 SMW200 11 P1500 1 12V 2 GND 3 BUFFERED_MPI 4 MPI_DOUT 5 SPI_DATA_OUT 6 SPI_DATA_IN ...

Page 36: ...41 100 R1642 100 R1649 100 R1650 100 R1658 100 R1659 100 R1669 100 R1673 100 R1675 100 R1742 100 R1732 100 R1733 100 R1741 0 R1694 SKHMPWE010 SW501 1 2 4 3 5 KIA7027AF IC1604 OPT 2 G 3 O 1 I 0 R1603 OPT 2SC3875S ALY Q1615 E B C RESET_high 010 E23 3 5V_ST 3 5V_ST 100 R1604 3 5V_ST Update_SW 010 E15 SKHMPWE010 SW502 1 2 4 3 5 THERMAL SC632ULTRT IC1600 3 C1 2 C1 4 IN 1 GND 5 EN 6 OUT 7 C2 8 C2 9 EP G...

Page 37: ...ICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC SPI_SCK FLASH_WP 0 R1301 0 OPT R1300 SPI_CS 4 7K R1303 0 1uF C1200 3 3V_Normal 3 3V_Normal KRC103S Q1300 E B C 3 3V_Normal 10K R1302 33 R1304 SPI_SDO SPI_SDI MX25L8005M2I 15G IC200 S_FLASH 3 WP 2 SO 4 GND 1 CS 5 SI 6 SCLK 7 HOLD 8 VCC MX25L8006EM2I 12G IC200 1 Macronix_shrink 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7 HOLD 8 VCC S Flash 1MB 21 ...

Page 38: ...TU5001 3 NTSC_1INPUT_H_LGIT 14 3 3V 13 1 2V 5 AS 12 GND 11 VIDEO 2 BST_CNTL 10 NC 4 NC RF_AGC 1 ANT_PWR OPT 17 DIF_1 9 SIF 8 NC IF_TP 3 B 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 SHIELD 19 TDVJ H031F TU5001 2 NTSC_1INPUT_V_LGIT 14 3 3V 13 1 2V 5 AS 12 GND 11 VIDEO 2 BST_CNTL 10 NC 4 NC RF_AGC 1 ANT_PWR OPT 17 DIF_1 9 SIF 8 NC IF_TP 3 B 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 SHIELD 19 TDT...

Page 39: ...K6 0 NON_GIP R745 CLK3 VDD_ODD VGI_N 0 NON_GIP R767 VGH_M 25V CLK1 0 NON_GIP R752 0 NON_GIP R753 0 NON_GIP R771 CLK5 VDD_ODD 0 NON_GIP R751 CLK4 Z_OUT 0 NON_GIP R750 0 NON_GIP R748 VST GOE GCLK1_I CLK6 VGL_I CLK3 0 NON_GIP R770 0 NON_GIP R749 0MINI_LVDS R754 VGL 5V VGI_P VDD_EVEN GSC GCLK3_I 0 NON_GIP R772 0 NON_GIP R768 0 NON_GIP R769 CLK2 0 GIP R765 0 GIP R729 3 3K NON_GIP R773 0 GIP R701 104060...

Page 40: ...USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC PCM_A 13 PCM_IORD PCM_A 14 PCM_REG PCM_A 12 PCM_CD PCM_A 10 PCM_A 8 PCM_WE PCM_A 3 PCM_IOWR PCM_A 0 PCM_A 4 PCM_5V_CTL PCM_RST PCM_A 11 PCM_A 6 PCM_A 9 PCM_A 2 PCM_A 5 PCM_IRQA PCM_WAIT PCM_CE PCM_A 1 PCM_A 7 PCM_OE PCM_D 0 7 PCM_D 2 PCM_D 6 PCM_D 1 PCM_D 3 PCM_D 7 PCM_D 5 PCM_D 4 PCM_D 0 PCMCI NON CI Region 4 6 2 1 LD320H UA_LA0...

Page 41: ......

Page 42: ... pin Check switch SW501 SW502 Y N Check X1600 Clock 32 768MHz Check X1600 application circuit or Replace X1600 Y N Check IC1602 IIC communication state Check IIC line or replace IC1602 N Check IR input state of IC1602 57pin Check IR board N Y Re download PTC Micom Y Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 43: ... P401 All Voltage Level 5V 12V 16V Check power connector and RL_ON pin1 signal OK Replace Power board N Y Check Q409 output Voltage 12V Y Check Q409 application circuit or replace Q409 N Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 44: ...IIC lines YES You should replace TUNER NO Check IC401 Analog RF Video Trouble shooting guide YES YES Check tuner 3 3V power L5003 Replace L5003 NO Replace IC401 Replace L5002 YES NO Check tuner 1 2V power IC5001 2pin 1 2V Replace IC5001 NO Check RF cable signal YES NO Replace Mstar IC101 or main board Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE...

Page 45: ...it Y N Check Tuner 5V Power IC401 Replace IC401 Y N Y Check X201 and application circuit Check IF Signal TU5001 10 11 Pin Check tuner application circuit or replace tuner N Y Replace X201 N Y Replace IC101 Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 46: ... This board has big problem because Main chip Mstar have some troubles After checking thoroughly all path once again You should decide to replace Mstar or not AV Video Trouble shooting guide YES Check input signal format Is it supported YES Check AC cable for damage For damage or open conductor YES Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE In...

Page 47: ...Can you see the normal waveform YES This board has big problem because Main chip Mstar have some troubles After checking thoroughly all path once again You should decide to replace Mstar or not YES Check input signal format Is it supported YES Check AC cable for damage For damage or open conductor YES Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE...

Page 48: ...e troubles After checking thoroughly all path once again You should decide to replace Mstar or not YES Check input signal format Is it supported YES Check AC cable for damage For damage or open conductor YES Check EDID EEPROM IC801 IC802 I2C signal R876 R875 R878 R877 SDA SCL NO Replace the defective IC or re download EDID data YES YES Check HDCP key NVRAM IC103 Power I2C signal NO Replace the def...

Page 49: ...problem because Main chip Mstar have some troubles After checking thoroughly all path once again You should decide to replace Mstar or not YES Check input signal format Is it supported YES Check AC cable for damage For damage or open conductor YES Check EDID EEPROM IC1105 I2C signal R1141 R1143 SDA SCL NO Replace the defective IC or re download EDID data YES Copyright ⓒ 2011 LG Electronics Inc All...

Page 50: ... check Can you see the normal waveform YES NO Could you measure voltage of TU5001 IIC lines Are they all normal NO You should check power line IIC lines YES You should replace TUNER NO After checking audio signal line you should decide to replace item or not Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 51: ...k YES Check the input of Mstar IC101 Measure waveform at C236 C237 C238 C239 C4059 C4060 C244 C245 because it s more easy to check Can you see the normal waveform NO After checking audio signal line you should decide to replace item or not Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 52: ...orm JK801 JK802 may have problem Replace this Jack Check HDCP key NVRAM IC103 Power I2C signal After checking the Power of this chip you should decide to replace this or not YES NO NO Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 53: ... to replace Mstar or not After checking audio signal line you should decide to replace item or not YES Check the output Pin 30 31 36 37 47 48 53 54 of NTP7100 IC501 Can you see the normal waveform NO YES After checking the Power I2C Reset of this chip you should decide to replace this or not Check the speaker output wafer P501 Can you see the normal waveform NO YES After checking audio signal line...

Page 54: ...k Audio Signal Block Audio Signal Block Flash Block Reset Flash Block Reset I2C Block I2C Block POWER Block POWER Block Overall Block Diagram Overall Block Diagram M S Output Block 37 42 M S Output Block 37 42 Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 55: ...ZR IC1602 24MHz JACK PACK JACK PACK at REAR at REAR SCL SDA_3 3V RF S7 LGE105DB LF 1 IC101 RS 232C SVC S W Reset TDVJ S001D EXT_OUT LCD Module FHD M S 60Hz Mini LVDS I2C SCL SDA S_FLASH 8M bit MX25L8005M2I 15G IC200 Power AMP TPA6011A4PWPRG4 IC1100 JK1100 JK6000 RJP_CTRL JK501 P Gamma Power Shift Power Control Pro Idom LGDT1129 IC1209 TS_CLK VALID SYNC 0 7 PM_TS_CLK VALID SYNC 0 7 P1103 JK1102 TMM...

Page 56: ..._VSYNC COMP1_Y COMP1_Pr COMP1_Pb AV_CVBS_IN SIDEAV_CVBS_IN A_RXCP N A_RX0P N A_RX1P N A_RX2P N D2 _HDMI1 D1 _HDMI1 D0 _HDMI1 CK _HDMI1 IF_AGC_MAIN TU_SIF TU_CVBS IF_N P_MSTAR RF TDVJ S001D TMMB H001P B_RXCP N B_RX0P N B_RX1P N B_RX2P N D2 _HDMI2 D1 _HDMI2 D0 _ HDMI2 CK _HDMI2 Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 57: ...V_L_IN PC_R_IN PC_L_IN Digital AMP NTP7000 I2S_OUT_MCK AMP_SCK AMP_SCL AUD_MASTER_CLK AUD_LRCH I2S_OUT_BCK I2S_OUT_SD1 I2S_OUT_SD RF TDVJ S001D TMMB H001P IP IM IFAGC SIFP CVBS0P IF_AGC_MAIN TU_SIF TU_CVBS IF_N P_MSTAR AUD_LRCK I2S_OUT_WS Power AMP TPA6011A4PWPRG4 LINE_OUT_3L EXT_SPK Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only...

Page 58: ... PCM_PF_CE0Z PCM_PF_CE1Z PCM_PF_CE0Z PCM_PF_WEZ RB RE CE CLE ALE WE I O 0 I O 1 I O 2 I O 3 I O 4 I O 5 I O 6 I O 7 8 PCM_A 0 7 WP PCM PF_AD15 F_RB PF_OE PF_CE0 PF_CE1 PF_ALE PF_WE PF WP Reset Switch SOC_RESET RESET 3 5V_ST Micom MSP430F5419IPZR Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 59: ...IPZR IC1602 FRAM FM24C16A IC1608 TGPIO0 UPGAIN TGPIO1 DNGAIN LGDT1129 Pro Idiom IC1209 22ohm 22 ohm TGPIO2 I2C_CLK TGPIO3 I2C_SDA Tuner TDTJ S001D TU5001 EEPROM AT24C02BN IC801 22 ohm 22 ohm DDC_SCL_1 SDA_1 5V_Normal 4 7k ohm 4 7k ohm 18pF 18pF EEPROM AT24C02BN IC802 22 ohm 22 ohm DDC_SCL_2 SDA_2 5V_Normal 4 7k ohm 4 7k ohm DDCDB_CK GPIO25 DDCDB_DA GPIO26 DDCDA_CK GPIO23 DDCDA_DA GPIO24 18pF 18pF ...

Page 60: ... shifter IC602 VGH 25V VDD_LCM 16V VCC_LCM 3 3V VGL 5V Panel_Vcc 12V Enable1 For VGL Enable2 For VGH VDD Panel_Vcc 12V Enable2 For HVDD HVDD GVDD_EVEN ODD_I GSP GVST_I GCLK_I VDD_EVEN ODD VST VGL to VGH AMP_SDA AMP_SCL CLK VDD_EVEN_ODD VST T_con signal POL SOE GMA 3 4 6 7 12 1 3 15 16 VCOM Mini LVDS OUT Block 6 6 VGL 5V VGH 25V VCC_LCM 3 3V VDD_LCM 16V VCC_LCM 3 3V VCOMR GMA gamma voltage VGH VDD ...

Page 61: ...5TQ1G63BFR H9C DDR3 IC1602 MSP430F5419IPZR Micom IC408 NCP803SN293 RESET IC Power_DET IC101 Main SOC P6000 6 Control IR LED IC1600 SC632ULTRT DCDC IC1601 BD9306AFVM DCDC 5V_ST 12V_ST L413 L420 L1201 VCC_1 5V_DDR AVDD_DDR0 1 LGE105B LF 1 L1209 IC1000 1001 MC14053BDR2G UART 1168mA Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 62: ...C408 NCP803SN293 RESET IC IC409 NCP803SN293 RESET IC P401 or P403 or P404 2 4 L407 P401 or P403 or P404 17 19 21 L402 L416 L417 IC406 AOZ1072AI DCDC 2A 5V_TUNER L430 Q6000 SI4925BDY FET L6000 JK6000 RJP L401 D1600 Q1482 SI4925BDY FET 12V_C 12V_C_MPI Q1471 2N3906S RTK BJT BEXT_5V JK1401 b LAN MPI JACK TU1002 TMMB H001P b LAN L1407 L1401 L1412 L1451 L424 800mA 684mA Copyright ⓒ 2011 LG Electronics I...

Page 63: ..._TU TU5001 TDTJ S001D Tuner L424 IC101 Main SOC LGE105B LF 1 L211 AVDD2P5 ADC2P5 L212 AU25 L219 AVDD25_PGA L204 VDD33 L206 L205 L222 FRC_LPLL AU33 FRC_VDD33_DDR L207 VDD33_DVI L207 AVDD_DMPLL L221 FRC_AVDD 3 3V_Normal L1227 IC1209 LGDT1129 Pro Idiom L1228 3 3V_Proidiom VCCINT_1 5V IC200 MX25L8005M2I 15G S FLASH L5003 IC5001 AZ1117H ADJTRE1 LDO 1 2V 1 8V_TU L504 Copyright ⓒ 2011 LG Electronics Inc ...

Page 64: ...6 AOZ1073AI DCDC 2A L5002 5V_Tuner 5V_TU TU5001 TDTJ S001D Tuner Q409 AO3407A FET PANEL _VCC IC600 TPS62110RSAR MINI LVDS HVDD L604 P701 702 MINI LVDS HVDD L600 IC603 MAX17113ETL MINI LVDS PMIC VDD_LCM 16V IC601 MAX9668ETP MINI LVDS P GMA D602 VGH 25V L601 VCC_LCM 3 3V L701 702 PANEL_VCC 12V IC602 MAX17119DS Level Shifter D603 VGL 5V z z z z VCOM z z z Copyright ⓒ 2011 LG Electronics Inc All right...

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