LG 39LY340C Page 38 Service Manual Download | Manualshive

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Summary of Contents for 39LY340C

Page 1: ...EL 39LY340H C 39LY340H C UA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only ...

Page 2: ... LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 9 TROUBLE SHOOTING 15 BLOCK DIAGRAM 21 EXPLODED VIEW 22 SCHEMATIC CIRCUIT DIAGRAM ...

Page 3: ...inals etc to be sure the set is safe to 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 m...

Page 4: ...lectrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent poten tial 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...

Page 5: ...he 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 replace...

Page 6: ...with BOM 5 The receiver must be operated for about 20 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 4 General Specification No Item Specification Result Remark 1 Receiving System ATSC NTSC M 64 256 QAM 2 Available Channel 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV...

Page 7: ...DDC PC DVI DDC 1 640 350 31 468 70 09 25 17 EGA X 2 720 400 31 469 70 08 28 32 DOS O 3 640 480 31 469 59 94 25 17 VESA VGA O 4 800 600 37 879 60 31 40 00 VESA SVGA O 5 1024 768 48 363 60 00 65 00 VESA XGA O 6 1152 864 54 348 60 053 81 62 VESA O 7 1360 768 47 712 60 015 85 50 VESA WXGA O 8 1280 1024 63 981 60 020 108 0 VESA SXGA O 9 1920 1080 67 50 60 00 148 5 HDTV 1080P O DTV 1 720 480 31 50 60 00...

Page 8: ...DMI cable receiving the HDMI signal Press 3D key of remote control select 3D format below No Resolution H freq kHz V freq kHz Pixel clock Proposed 3D input proposed mode 1 1280 720 45 00 60 00 74 25 HDTV 720P Side by Side Top Bottom 2 1920 1080 33 75 60 00 74 25 HDTV 1080I Side by Side Top Bottom 3 1920 1080 27 00 24 00 74 25 HDTV 1080P Side by Side Top Bottom 4 1920 1080 33 75 30 00 74 25 HDTV 10...

Page 9: ...oard level and Final assembly adjustment items can be check using In Start Menu 1 Adjust Check Component 1080p and RGB PC Adjust will be calculated by 480i adjust value 3 2 Final assembly adjustment 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting per destination 4 Shipment mode setting In Stop 5 GND and HI POT test 3 3 Appendix 1 Shipment conditions 2 Tool option ...

Page 10: ...ol Option according to BOM 5 Final Assembly Adjustment 5 1 White Balance Adjustment 5 1 1 Overview 5 1 1 1 W B adj Objective How it works 1 Objective To reduce each Panel s W B deviation 2 How it works When R G B gain in the OSD is at 192 it means the panel is at its Full Dynamic Range In order to prevent saturation of Full Dynamic range and data one of R G B is fixed at 192 and the other two is l...

Page 11: ...offset if need 5 1 5 2 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 press the cursor to the right KEY When KEY is pressed 204 Gray 80IRE internal pattern will be displayed 4 Adjust modes Cool Fix the G gain at least ...

Page 12: ...ANADA and MEXICO 5 2 2 Country Group selection 1 Press ADJ key on the Adj R C and then select Country Group Menu 2 Depending on destination select US then on the lower Country option select US CA MX Selection is done using KEY 3 Using DFT Auto PC for communication through RS 232C UART Baud rate 115200 bps Command ah 00 00 DATA Area Number hexadecimal ITEM DATA Area Number AREA AREA OPTION1 0 USA 1...

Page 13: ...103 4 on 4 GND Test Auto If Test is failed Buzzer operates If Test is passed execute next process Hi pot test Remove A V CORD from A V JACK BOX 5 HI POT test Auto If Test is failed Buzzer operates If Test is passed GOOD Lamp on and move to next process automatically 6 3 Checkpoint 1 Test voltage GND 1 5KV min at 100mA SIGNAL 3KV min at 100mA 2 TEST time 1 second 3 TEST POINT GND Test POWER CORD GN...

Page 14: ... remote controller 2 Select Tool Option 1 and Push OK button 3 Punch in the number Each model has their number 9 Test factor for commercial model 9 1 RJP TEST Only US model 9 1 1 Overview Jig Commercial Check JIG RJ45 cable Power only mode 9 1 2 Test sequence 1 Operate JIG Commercial Check JIG as shown on picture1 2 Turn on TV and press P ONLY key on adjustment remocon 3 Connect RJ45 cable into RJ...

Page 15: ...e Mstar IC101 or Main board Check Multi Voltage P401 9 10pin 24V 13 14 15pin 12V Replace Power Board Check DRV ON Control P401 2 pin High Check Power Board Check IC403 404 Q406 OutputVoltage IC403 1 1V IC404 1 5V Q406 3 3V Replace IC403 IC404 Q406 Re download software Check stand by Voltage L400 L401 3 5V Replace L400 L401 Check LVDS Power Voltage Q405 12V Replace Q405 Check Mstar LVDS Output Repl...

Page 16: ...Tuner 3 AV Video Check inputsignal format Is it supported Check AV Cable for damage for damage or open conductor Check JK1702 CVBS Signal Line R1722 ok ok ok No Replace Jack ok Check CVBS_DETSignal R1713 Replace R1713 No Check Mstar LVDS Output Replace Mstar IC101 or Main Board No 4 RGB Video Check inputsignal format Is it supported Check RGB Cable for damage or open conductor Check JK705 R G B si...

Page 17: ... open conductor Check EDID Downlaod ok ok ok No Replace the defective IC or re download EDID data Check HDMISignal Check other set If no problem check signal line ok No Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok No Replace Main Board No Check HDMI_DET HPD No Replace HDMI1 R802 R805 Q800 HDMI2 R812 R813 R814 Check HDMII2C Signal ok No Replace D800 D801 Check JK 800 JK801 No Replac...

Page 18: ...Replace connector if found to be damaged ok No Check speaker resistance and connector damage Replace speaker ok No Off Toggle the Menu Check AMP IC IC5600 Power 24V 3 3V No Replace Amp IC IC5600 Check Output Signal P5600 1 2 3 4 pin No Check Mstar AUDIO_MASTER_CLK R123 No Replace Mstar IC101 or Main Board ok Check AMP I2C Line R111 R112 No Check signal line Or replace Mstar IC101 Replace Audio AMP...

Page 19: ...age or open conductor Check JK1702 Signal Line R1714 R1715 ok ok No Replace Jack Follow procedure 7 All source audio trouble shooting guide 7 Digital Analog TV Audio Check RF Cable Signal Follow procedure 7 All source audio trouble shooting guide ok Check Tuner 3 3V Power L1600 Replace L1600 Check IF_P N Signal TU1601 6 7 Pin ok ok No No Bad Tuner Replace Tuner ...

Page 20: ...eplace Phone Jack if found to be damaged ok No Check External Speaker Replace External speaker ok No Check AMP IC IC901 Power 24V L902 No Replace L902 Check AMP IC IC901 Output L904 L905 No replace AMP IC IC901 Check Mstar External AUDIO output C927 C928 No Replace Mstar IC101 or Main Board ok Check AMP IC IC901 Mute High R924 4pin No Check signal line Or replace Mstar IC101 9 External Speaker Out...

Page 21: ..._LRCH AUD_LRCK AUD_SCK TAS5733 IC5600 Main SOC M1A 256MB 내장 IC101 Connector P4600 KEY1 2 LED_R IR SIDE USB JK700 HDMI2 MHL JK801 CK D0 D1 D2 _HDMI4 DDC_SCL SDA_4 HDMI_CEC SIDE_USB_DM DP USB1_CTL TPS65282REGR 5V_USB MHL_CD_SENSE MHL_5V_EN MHL_OCP_DET SENSOR_I2C TU_SCL SDA SIF TDJH H101F Half NIM IF_AGC_MAIN CVBS COMP_L R_IN COMP_Y AV_CVBS_IN COMP_Pb Pr CK D0 D1 D2 _HDMI2 DDC_SCL SDA_2 HDMI_CEC REAR...

Page 22: ...tics 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 410 420 200 400 540 521 530 820 910 120 200T 310 121 LV1...

Page 23: ...0 GPIO71 J18 PWM1 GPIO72 K18 PWM2 GPIO73 K16 PWM3 GPIO74 L18 PWM4 GPIO75 L17 NF_ALE GPIO146 T8 NF_CEZ GPIO142 T9 NF_CLE GPIO141 U9 NF_RBZ GPIO147 U11 NF_REZ GPIO144 V9 NF_WEZ GPIO145 U10 NF_WPZ GPIO199 T10 IF_AGC W2 SIFM W1 SIFP W3 IM V2 IP V1 XIN AA2 XOUT Y2 RXACK PWM0 URSA VCOM_SDA AUD_MASTER_CLK DSUB_DET FE_TS_DATA 0 RXBCK IC101 1 LGE2131 M1A_128M M1A_128M GPIO78 Y1 GPIO79 W4 I2C_SCKM3 I2C_DDCR...

Page 24: ...R5 AVDDL_MOD P11 DVDD_DDR_1 C7 DVDD_DDR_2 M13 DVDD_NODIE R6 DVDD_RX_1_1 A7 DVDD_RX_1_2 M12 DVDD_RX_2_1 B7 DVDD_RX_2_2 M14 VDDC_1 N11 VDDC_2 N12 VDDC_3 N13 VDDC_4 N14 VDDC_5 N15 VDDC_6 P12 VDDC_7 P13 VDDC_8 P14 VDDP L9 AVDD5V_MHL AA10 C204 4 7uF C261 0 1uF DSUB_VSYNC AVDD_DMPLL R210 1K DUALSTREAM 1 10V_VDDC MODEL_OPT_4 C240 1uF HDMI_ARC D2 _HDMI2 COMP_R_IN IC101 LGE2132 M1A_256M M1A_256M ARC0 M4 RX...

Page 25: ...DQ_2 A8 VDDQ_3 C1 VDDQ_4 C9 VDDQ_5 D2 VDDQ_6 E9 VDDQ_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 A MA14 A MA8 A MA11 A MDQU5 A MVREFDQ C1216 10uF 10V OPT A MDQL2 A MCKE A MA7 C12...

Page 26: ...501T C432 4 7uF 50V 3216 24V_CAP R424 3 9K PWM_DIM_PULL_DOWN 3 5V_ST C400 1uF 10V 1005 3 5V_ST PWM_DIM R401 10K R419 100 Q401 MMBT3906 NXP 1 2 3 3 5V_ST C402 0 1uF 16V C433 4 7uF 16V 12V_CAP 3216 R406 10K R412 33K OPT R425 10K PWM1 INV_CTL 12V 3 5V_POWER_DET R400 10K OPT ZD404 5V C407 10uF 10V 2012 RL_ON L402 MLB 201209 0120P N2 24V R455 0 L403 MLB 201209 0120P N2 3 5V_ST ZD400 5V R456 0 OPT 3 3V_...

Page 27: ...6 46 OUT_B 47 PGND_AB_1 48 PGND_AB_2 49 EP R3405 0 OPT C5608 0 047uF C5609 4700pF P5600 WAFER ANGLE 1 2 3 4 R5614 18 1 16W C5616 0 033uF 50V R5612 18 C5607 0 1uF SPK_R 3 3V_Normal 24V_AMP 3 3V_Normal C5636 2200pF 50V OPT C5604 0 1uF 16V AUD_MASTER_CLK C5625 0 033uF 50V C5630 0 47uF 50V 0 47uF R5600 10K AMP_MUTE_CONNECT 24V_AMP SPK_L AMP_MUTE C5631 0 47uF 50V 0 47uF C5627 330pF 50V SPK_L AUD_SCK C5...

Page 28: ...T_EU E B C LED_R BUZZ R4602 100 KEY1 3 3V_Normal C4605 18pF 50V R4610 22 IR_OUT R4612 1K IR_OUT_EU P4601 12507WR 08L OPT 1 2 3 4 5 6 7 8 9 C4602 0 1uF 16V SENSOR_SDA C4601 1000pF 50V 3 5V_ST KEY2 VA4600 LED_R_Zener P4600 12507WR 10L 1 2 3 4 5 6 7 8 9 10 11 3 5V_ST 3 5V_ST R4614 1K IR_OUT R4603 10K 1 IR R4609 100 R4611 0 IR_OUT_US R4604 10K 1 SENSOR_SCL IR_OUT R4601 100 Q4617 2SC3052 IR_OUT E B C R...

Page 29: ...E USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 13 04 30 USB_S1 7 L14_M1A JK700 3AU04S 305 ZC LG 1 2 3 4 5 D700 RCLAMP0502BA OPT SIDE_USB1_DM SIDE_USB1_DP 5V_USB ZD700 5V OPT SD05 C711 5pF 50V OPT C710 5pF 50V OPT C712 22uF 16V C713 22uF 16V C700 22uF 16V R700 2 2 1 16W 5 R701 2 2 1 16W 5 USB SIDE Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and s...

Page 30: ... DDC_SDA_2 D1 _HDMI4 R815 100 HDMI 2 C800 0 047uF 25V HDMI 2 D2 _HDMI4 R802 1 8K D2 _HDMI2 R808 10K HDMI_CEC D0 _HDMI4 VA806 ESD_HDMI2 JK801 EAG62611204 HDMI 2 14 NC 13 CE_REMOTE 5 D1_GND 20 GND 12 CK 11 CK_GND 2 D2_GND 19 HP_DET 18 5V 10 CK 4 D1 1 D2 17 GND 9 D0 8 D0_GND 3 D2 16 DDC_DATA 7 D0 6 D1 15 DDC_CLK D803 IP4283CZ10 TBA ESD_HDMI1_NXP 3 GND_1 2 TMDS_CH1 4 TMDS_CH2 1 TMDS_CH1 5 TMDS_CH2 6 N...

Page 31: ...OR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC SPDIF 2013 05 15 10 NC5_L14 JK1001 JST1223 001 1 GND 2 VCC 3 VINPUT 4 FIX_POLE SPDIF_OUT C1001 1uF 10V OPT 3 3V_Normal C1002 47pF 50V SPDIF_CAP_47pF C1002 1 18pF 50V SPDIF_CAP_18pF SPDIF from EAX65346302 5 15 Mstar Circuit Application SPDIF OPTIC JACK ESD Ready Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training an...

Page 32: ... 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 RXACK RXA3 RXA2 3 3V_Normal RXB1 RXB0 RXA4 RXA1 Pol change RXB4 RXACK RXBCK RXA0 RXA2 LVDS NON EU RXA2 RXBCK RXB4 RXA3 RXA1 RXB2 RXB3 RXA3 RXBCK RXACK RXA2 RXA1 RXB1 RXB3 RXA3 RXA2 RXA0 RXA4 Shift RXBCK RXB2 RXA4 51Pin LVDS Connector For FHD 60Hz RXACK RXA3 RXACK RXB3 RXA3 RXA1 RXB0 RXA0 RXACK RXB3 RXA4 RXB3 RXA4 RXA2 RXA2 RXA1 RXB2 Pol change RXB4 RXB...

Page 33: ...S_FLASH 2013 04 29 13 NC5_S7LR M1A SPI_SCK 3 5V_ST 3 5V_ST C1300 0 1uF R1301 4 7K OPT SPI_CS SPI_SDO IC1300 MX25L8006EM2I 12G SPI_FLASH_MACRONIX 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7 HOLD 8 VCC R1302 33 R1300 10K OPT SPI_SDI FLASH_WP IC1300 1 W25Q80BVSSIG SPI_FLASH_WINBOND 3 WP IO2 2 DO IO1 4 GND 1 CS 5 DI IO0 6 CLK 7 HOLD IO3 8 VCC 3 5V_ST Serial Flash for SPI boot Copyright ⓒ 2014 LG Elec...

Page 34: ...C_MAIN IF_AGC_SEL C1615 100pF 50V C1616 0 1uF 16V 3 3V_Normal C1613 20pF 50V OPT R1605 1 10 HALF_NIM IF_FILTER R1609 100 R1605 0 HALF_NIM IF_NON_FILTER FE_TS_VAL_ERR RF_SWITCH_CTL TU_GND_A R1610 1 8K TU_IIC_ATSC_1 8K TDJH G101D TU1601 1 TU_AJ_T C 47 SHIELD 6 IF P 7 IF N 8 NC_2 9 NC_3 1 B1 3 3V 2 NC_1 3 IF_AGC 4 SCL 5 SDA A1 A1 B1 B1 TDJH H101F TU1601 DEV_TU_ATSC 47 SHIELD 6 IF P 7 IF N 8 NC_2 9 NC...

Page 35: ..._2 10 PVCCR_1 11 VCLAMP 12 PVCCR_2 13 PGNDR_1 14 PGNDR_2 15 ROUT 16 BSR 17 GAIN1 18 GAIN0 19 AVCC_1 20 AVCC_2 21 BSL 22 LOUT 23 PGNDL_1 24 PGNDL_2 C920 0 47uF 50V EXT_SPK C923 47uF 25V EXT_SPK R930 10K OPT L902 BLM18PG121SN1D EXT_SPK EXT_OUT_L R931 10K EXT_SPK C918 0 22uF 50V EXT_SPK EXT_OUT_L C911 1uF 50V EXT_SPK R935 4 7K EXT_SPK C922 0 47uF 50V EXT_SPK L904 22 0uH EXT_SPK R936 10K EXT_SPK C915 ...

Page 36: ...NC 14 V_SYNC 15 DDC_CLOCK 16 SHILED DSUB_VSYNC VA702 20V RGB_VARISTOR ADUC 20S 02 010L VA703 20V RGB_VARISTOR ADUC 20S 02 010L C723 18pF 50V NON_CI_CAP_RGB_PC RGB_DDC_SDA C720 68pF 50V OPT R719 75 RGB_PC R720 75 RGB_PC DSUB_G R718 75 RGB_PC C718 68pF 50V OPT DSUB_HSYNC C702 0 1uF R712 1K IR_OUT JP709 IC701 MAX3232CDR EAN41348201 3 C1 2 V 4 C2 1 C1 6 V 5 C2 7 DOUT2 8 RIN2 9 ROUT2 10 DIN2 11 DIN1 12...

Page 37: ...b VA1700 5 6V COMP_LR_ZENER R1714 10K ZD1701 1 COMP_Pr_ZENER_KEC ZD1705 COMP_Y_ZENER_ROHM R1712 1K C1705 1000pF 50V 1000p ZD1702 COMP_Pb_ZENER_ROHM R1705 75 C1704 1000pF 50V 1000p COMP_R_IN JK1702 PPJ245 01 COMP_AV1 6A GN C SPRING 7A GN E LUG 4A GN CONTACT 5B BL C SPRING 8C RD1 E LUG S 6C RD1 C SPRING 4C RD1 CONTACT 5D WH C SPRING 4E RD2 CONTACT 6E RD2 C SPRING 7E RD2 E LUG R1703 470K ZD1702 1 COM...

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