LG Electronics 32LN52**-ZA manuals
TV and Video > Flat Panel Television
When we buy new device such as LG Electronics 32LN52**-ZA we often through away most of the documentation but the warranty.
Very often issues with LG Electronics 32LN52**-ZA 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 32LN52**-ZA 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 32LN52**-ZA Service Manual
75 pages 8.69 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 SPECIFICATION10 ADJUSTMENT INSTRUCTION1. Application Range 2. Designation 3. Main PCB check process* Boot file Download * USB DOWNLOAD* After downloading, have to adjust Tool Option again. 11 3.1. ADC Process3.2. EDID Download 3.3. EDID data 3.4. Function Check 12 4. Total Assembly line process14 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. Command Set 6.3. Method & notice 15 7. MAC Address & CI+ key download7.1 MAC Address GP4_LOW7.1.1 Equipment & Condition 7.1.2 Download method Screw specification and application situation 16 SCREW ASSEMBLY WORKING GUIDE17 DISASSEMBLY WORKING GUIDEPCMCIA (SIDE) TV Tuner LCD Panel (FHD 51P/HD 30P) LVDS (8 bit) Back Light LED Driver 18 BLOCK DIAGRAM21 EXPLODED VIEWFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS IR/CONTROL 2012/07/18 6 22 IR/LED and Control23 USB (SIDE)FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS S_FLASH_OS 2012/06/20 13IC1300 MX25L8006EM2I-12G SPI_FLASH_MACRONIX IC1300-*1 W25Q80BVSSIG SPI_FLASH_WINBOND 24 Serial Flash for SPI boot(OS)FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS +3.3V_Normal +3.3V_Normal PCMCI 2013/03/25 19 CI TS INPUT CI POWER ENABLE CONTROL CI SLOT CI HOST I/F CI DETECT * Option name of this page : CI_SLOT 25 CI Region(because of Hong Kong) FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2013/02/05 AMP_STA380BWEF 34 26 AUDIO AMP(STA380BWEF)27 MSTART DEBUG_4PIN28 RS-232C29 EU NOT USED TP (ERRC)30 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS M1_DDR (1DDR) 2012/06/21 54 DDR_1600_2G_HYNIX S7LR-M_NON_MS10CLose to Saturn7M IC CLose to DDR3 SYMBOL.B FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS EU REAR_JACK_EU_OS_ERRC_LN52 2013/03/07 66JK2801 PSC008-01 IC2801 AZ4580MTR-E1 EU 31 FULL SCARTSCART AMP [SCART AUDIO MUTE] FULL SCARTCOMPONENT & AV NOT USE TP(LN52) HDMI_1(ARC)FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2012/11/28 67Adapter_HDMI_R2_LN52D820SIDE HDMI DELETE MHL DELETE CEC 32 HDMI(REAR 2 Without MHL)EU NOT USED TP (LN52_ERRC)HDMI_2FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 3A 3A 1.5AR1 Vout=0.827*(1+R1/R2)=1.1578V Vout=0.8*(1+R1/R2)=1.5319 +5V_USB +12V Adapter Power 2013/04/17 68IC407 AP7173-SPG-13 HF(DIODES) IC401 TPS65281RGV IC404 RT8289GSP Vout=1.222*(1+R1/R2)=12.33V +12V -> PANEL_VCCIC400 TPS54331D Vout=0.8*(1+R1/R2)=3.37V +24V_ADAPTER -> +12V +3.3V_Normal -> +2.5V_Normal +3.5V_ST -> +1.10V_VDDC S7LRM core +3.5V_ST -> +3.3V_Normal +12V -> +5V_Normal & +5V_USB +3.5V_ST -> +1.5V_DDR Power_DETPD_+24V_ADAPTER --> 3.81V Vout=0.8*(1+R1/R2)=5.236V 33 L13 Adapter POWER BLOCK+24V_AMP_VCC +24V_ADAPTER -> +3.5V_ST 5A 3A 1A INV_CTL ADAPTER JACK 34 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS +24V_LED_DRIVER 400mA 285mA Adapter LED DriverP6900 +12V PWM_DIM WLED_ENABLE 42 POLA 13I-DD02 68K->51K 20K 2013/04/04 69T6900MODEL Q6902 R6915 R6935 13I-DD01 32 ROW/POLA FDT86106 51K 0 13I-DD02 42 ROW 75K 0STN4NF20L STN4NF20L 300mA R6911 22K 12K 12K FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2013/04/17 MAIN2_EU_LN52 2 MODEL OPTIONDUAL_STREAM B8 PHM_ON NON_DUAL_STREAM MODEL_OPT_7 * Dual Stream is only Korea 3D spec MIU1-128M MODEL_OPT_5 256M 35 SYM.CH/W opt:EU STby 3.5V Close to MSTAR HDMII2S_I/F SOC_RESETSCART1_RGB/COMP1 AUDIO OUT DTV_ATV_IF VDDC 1.05V DDR3 1.5VTUNER_I2C AUDIO IN ANALOG SIF Normal 2.5V Normal Power 3.3V SYM.EMemory MODEL_OPT_4 MODEL_OPT_6 Memory OPTIONU23 B8 128M 128M+128M 256M+128M 0 0 0 0 1 1 1 1 Note Ginga PIN NAME HD HIGH NON_DVB_T2 F4 DVB_T2 NON_DVB_S PHM_OFF MODEL OPTIONLOW T25 MIU0-128M MIU0-256M A8 MODEL_OPT_0 MODEL_OPT_2 U23 T24 AB3 AB2 MODEL_OPT_6 MIU1-NO_DDR DVB_S MODEL_OPT_3 MODEL_OPT_4 NON_M120 FHD MODEL_OPT_1 M120 HDMI FOR LN52 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS LN52_LVDS_EU 2013/02/28 71 36 LN52_LVDS (EU)MIRROR Pol-change Change in S7LR EU pin assign is different from NON EU. Because of position of HD wafer. [51Pin LVDS Non-Reverse Connector] (For FHD 60Hz) FOR FHD REVERSE(8bit) Change in S7LR [30Pin LVDS Connector] (For HD 60Hz_Normal) FOR FHD REVERSE(10bit) V-COM I2S PANEL_VCC -> PANEL_POWER 37 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS SYM.A I2C EEPROM PM MODEL OPTION DIMMINGEAN61548301 EAN62389501 NC4_S7LRM_Adapter 2013/01/10 MAIN1_EU_OS 1AR102 22 22IC104-*1 R1EX24256BSAS0A NVRAM_RENESASIC104 M24256-BRMN6TP NVRAM_ST IC101-*1 LGE2121-MS (M1_L13_MS10) S7LR-M_MS10 from CI SLOTfor SYSTEM EEPROM (IC104) for SERIAL FLASH <CHIP Config(LED_R/BUZZ)> Boot from SPI CS1N(EXT_FLASH) 1b0 Boot from SPI_CS0N(INT_FLASH) 1b1 NAND FLASH MEMORY<CHIP Config> (I2S_OUT_BCK,I2S_OUT_MCK,PAD_PWM1PAD_PWM0) SYM.D 38 NETCAST4.0_EU_TUNER_BLOCKFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2013/02/05 TUNER_EU_ERRC 85+1.8V_TU VREF=1.25V B1 71.8V 8NC_3 9IF_AGC 4SDA 10 DLIF_[P] 11 DLIF_[N]IF_P_MSTAR IF_AGC_MAIN +3.3V_Normal +1.8V_TU TU2601 TDSS-G501D(B) 53.3V 2RESET 1NC_1 3SCL 6NC_2 12 SHIELD Close to the tuner 40 1 / 36 Y A6 & A3 A4 Revised date 1/14 symptom A. Video error No video/ Normal audio A1 A2 2013. 01 .09 41 2 / 36 42 3 / 36 A6 A5 Check RF Cable SVC Normal Normal Established 43 4 / 36 Tuning fail, Picture broken/ Freezing Close A6 A5 44 5 / 36 A10 A8/ A9 A7 Replace module date Revised date 5/14 symptom 2013. 01 .09 45 6 / 36 Vertical/Horizontal bar, residual image, light spot Vertical / Horizontal bar, residual image, light spot, external device color error A10 External device screen error-Color error Connect other external device and cable Established symptom date Revised date 6/14 A7 A8/ A9 7 / 36 B. Power error LCD TV 46 2013. 01 .09 8 / 36 47 B. Power error symptom A13 Off when on, off while viewing, power auto on/off A14 LCD TV "POWEROFF_OFFTIMER" Power off by OFF TIMER Abnormal "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal * Please refer to the all cases which can be displayed on power off mode. 9 / 36 Adapter Cancel OFF Replace Adapter 48 C. Audio error symptom No audio/ Normal video A15 A4 LCD TV 2013. 01 .09 10 / 36 - abnormal audio/discontinuation/noise is same after Check input signal compared to No audio A4 49 C. Audio error symptom Wrecked audio/ discontinuation/noise Wrecked audio/ Request repair to external date Revised date 10/14 LCD TV 50 D. Function error A16 A4 from light in room. Remote control & Local switch checking - Remote control(R/C) operating error A16 Normal LCD TV 51 D. Function error LCD TV 13 / 36 If there is a Tak Tak noise from the 52 E. Noise LCD TV 53 F. Exterior defect LCD TV 54 Contents of LCD TV Standard Repair Process Detail Technical Manual Continue to the next page 55 Contents of LCD TV Standard Repair Process Detail Technical Manual
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