LG Electronics 42LM340T manuals
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When we buy new device such as LG Electronics 42LM340T we often through away most of the documentation but the warranty.
Very often issues with LG Electronics 42LM340T begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Flat Panel Television LG Electronics 42LM340T is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Flat Panel Television on our side using links below.
LG Electronics 42LM340T Service Manual
54 pages 6.44 Mb
3 SAFETY PRECAUTIONSIMPORTANT SAFETY NOTICEGeneral GuidanceBefore returning the receiver to the customer, Leakage Current Cold Check(Antenna Cold Check) Leakage Current Hot Check (See below Figure) Leakage Current Hot Check circuit 4 SERVICING PRECAUTIONS6 SPECIFICATION11 ADJUSTMENT INSTRUCTION1. Application Range 2. Designation 3. Main PCB check process* Boot file Download * USB DOWNLOAD* After downloading, have to adjust Tool Option again. 12 3.1. ADC Process3.2. EDID Download 3.3. EDID data 3.4 Function Check 13 4. Total Assembly line process4.1. Adjustment Preparation* Auto-control interface and directions * Manual W/B process using adjust Remote control. 14 4.2. EYE-Q function check4.3. 3D function test 4.4. IR emitter inspection 4.5. Outgoing condition Configuration 15 5. HI-POT Test5.1. HI-POT auto-check preparation 5.2. HI-POT auto-check 5.3. Checkpoint 6. Model name & Serial number D/L6.1. Signal Table 6.2. Comand Set 6.3. Method & notice 16 7. MAC Address & CI+ key download7.1 MAC Address SET PC7.1.1 Equipment & Condition 7.1.2 Download method 7.2 LAN Inspection7.2.1. Equipment & Condition 7.2.2. LAN inspection solution 7.3. LAN PORT INSPECTION(PING TEST)7.3.1. Equipment setting 7.3.2. LAN PORT inspection (PING TEST) GP4_LOW 17 BLOCK DIAGRAMApplied Model : **LM5800, **LS5600, **LS3500, **CS460, **LM3400 18 Applied Model : **LM580T, **560T, **LS350T, **CS460T, **LM340TTDSN TDSN- G301D G301D Except of LS350T/CS460T 19 Applied Model : **LM580S, **560S, **LS350S, **CS460S, **LM340STDSQ TDSQ- G001D G001D Except of LS350S/CS460S 20 EXPLODED VIEWFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS POWER_LARGE 2012/01/13 4IC407 AP7173-SPG-13 HF(DIODES) Vout=0.8*(1+R1/R2) 3A 1.5A Vout=0.827*(1+R1/R2)=1.225VR2 L413 L401 +5V_Normal IC401 AOZ1051PI 21 FROM LIPS & POWER B/DPower_DET S7LR core 1.2V volt +1.5V_DDRERROR_OUT is used for lamp(CCFL/EEFL) models. In other words, LED models need not use. +2.5V/+1.8V +3.3V_NormalVout=0.8*(1+R1/R2)=1.5319 Not used : only for small(ready) R1 780 mA Max 1000mA PANEL_POWER FOR LPB Download +5V_USB2000 mA LOCAL DIMMING FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS LVDS_LARGE 2011/11/14 11 [30Pin LVDS Connector] (For HD 60Hz_Normal) 22 LVDS for large inch[51Pin LVDS Connector] (For FHD 60Hz) FOR FHD REVERSE(8bit) Change in S7LR FOR FHD REVERSE(10bit) 23 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS K4B1G1646G-BCH9 H5TQ1G63DFR-H9C H5TQ1G63DFR-H9C DDR_256 2011/06/03 12IC1201-*2 IC1202-*1 K4B1G1646G-BCH9 IC1201 IC1202 S7LR2_DIVX_MS10CLose to Saturn7M IC CLose to DDR3 CLose to DDR3 CLose to Saturn7M IC FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS SFLASH_1MB 2011/06/03 13IC1401 MX25L8006EM2I-12G S_FLASH_MAIN_MACRONIX IC1401-*1 W25Q80BVSSIG S_FLASH_MAIN_WINBOND 24 Serial Flash for SPI boot26 ETHERNET* H/W option : ETHERNETFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011/08/17 23 27 IR/LED and control for on.y 12 sub without IR-OUT.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011/12/23 TUNER_EU 26 close to TUNER+1.8V_TU 7+1.8V 9IF_AGC 10 DIF[P] 11 DIF[N]+3.3V_S2_DE +3.3V_T2_TU IF_P_MSTAR +3.3V_S2_DE IF_AGC_MAIN +3.3V_T2_TUIF_N_MSTAR +2.5V_TU +3.3V_Normal +1.23V_TU TU2601 TDSQ-G001D TU_T/C/S21NC_1 5+B1[3.3V] 7+B2[1.8V] 38 32 +B4[3.3V] 33 S2_F22_OUTPUT 34 S2_SCL 35 S2_SDA 36 LNB 37 GND_4 TU2602 TDSS-G101D TU2603 TDSN-G301DTU_T2/C1NC_1 5+B1[3.3V] 7+B2[1.8V] IC2602 TJ4220GDP-ADJ TU2603-*1 TDSN-C201D TU_CHINA 28 GP4R_GLOBAL_TUNER_BLOCKclose to TUNER ERROR & VALID PIN Close to TUNERclose to TUNER Vo=VREF*(1+R2/R1) GP4L_S7LR2 2011/11/02 DVB_S 27IC2700 A8290SETTR-T Max 1.3A 29 DVB-S2 LNB Part AllegroPCB_GND and A_GND are connected DCDC_GND and A_GND are connected in pin#27 Input trace widths should be sized to conduct at least 3A DCDC_GND and A_GND are connected (Option:LNB) 2AOuput trace widths should be sized to conduct at least 2A 3AFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011/11/16 AMP_STA380BWE 34 30 AUDIO AMP(STA380BWE)31 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS AR101 22 *Option : HDCP_EEPROM HDCP EEPROM EEPROM I2C PM MODEL OPTION A0h for SERIAL FLASH Internal demod out DIMMING 50FLASH/EEPROM/GPIOEAN62389501EAN43349003 EAN43349004 EAN61548301 EAN61133501 OS AR102 22 OSIC104 AT24C256C-SSHL-T NVRAM_ATMEL IC104-*1 M24256-BRMN6TP NVRAM_ST IC104-*4 AT24C512C-SSHD-T NON_OS_512k_ATMEL NON_OS_512k_ST NVRAM_RENESAS 2011.11.02for SYSTEM EEPROM (IC104) <CHIP Config> (I2S_OUT_BCK,I2S_OUT_MCK,PAD_PWM1PAD_PWM0) <CHIP Config(LED_R/BUZZ)> Boot from SPI CS1N(EXT_FLASH) 1b0 Boot from SPI_CS0N(INT_FLASH) 1b1 NAND FLASH MEMORY from CI SLOT MSTAR (IC101) Multi package (11.11.18~) 32 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011.08.24 51 Normal Power 3.3VCOMP2(common AV) TUNER_I2C 3D A8 I2S_I/F NON_OLED ANALOG SIF *Opt : EU_OPT CVBS In/OUT STby 3.5VNON_3D MODEL_OPT_7 SIDE USB 120HZ Normal 2.5VAB2 DTV_IF MODEL_OPT_4 NON_DVB_S HD DVB_T2 U23 F4 MODEL_OPT_0 OLED PHM_ON MODEL_OPT_6 AUDIO IN SCART1_RGB/COMP1 VDDC 1.05VMODEL OPTION LOW HIGH MODEL_OPT_1 MODEL_OPT_5 DDR3 1.5VPIN NAME DVB_S DSUB H/P OUT NON_120HZ SOC_RESET *H/W opt : ETHERNET B8 MODEL OPTION PHM_OFF T25 AUDIO OUT NON_DVB_T2 T24 AB3 FHD HDMI PIN NO. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011/11/18 52 33 USB (SIDE)USB1_DIODESFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011/08/12 53 34 HDMI_2EA(NON SIDE HDMI)HDMI_2 HDMI_1 For CEC FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2012/01/06 55 SCART AUDIO MUTEEU_OPT_BCD EU_OPT_AUK JK2801 PSC008-01 35 Full Scart36 RS-232C 4PIN37 MSTART DEBUG_4PIN39 Contents of LCD TV Standard Repair ProcessFirst of all, Check whether there is SVC Bulletin in GCSC System for these model. 40 Contents of LCD TV Standard Repair Process Detail Technical ManualContinue to the next pagedate Revis ed date 1/14 symptom A. Video error No video/ Normal audio A4A1 A2 A6 & A3 41 First of all, Check whether all of cables between board is inserted properly or not.(Main B/DPower B/D, LVDS Cable,Speaker Cable,IR B/D Cable,,,) 43 A5A6 44 A5A6 45 A7A8/ A9 A10date Revis ed date 5/14 symptom 2012. 01 .14 46 Vertical/Horizontal bar, residual image, light spotVertica l / Horizontal bar, residual image, light spot, external device color error A10 External device screen error-Color errordevice and cable date Revis ed date 6/14 A7 A8/ A9 B. Power errorNo power Close A4 A12 A11 A13date Revis ed date 7/14 . Stand-By: Red 47
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