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Internal Use Only
North/Latin America http://aic.lgservice.com
CHASSIS : LD31B
MODEL : 32LA643V 32LA643V-ZB
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67651312 (1305-REV00) Printed in Korea
CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ........................................................................ 3 SERVICING PRECAUTIONS ................................................................... 4 SPECIFICATION ...................................................................................... 6 ADJUSTMENT INSTRUCTION ............................................................. 10 BLO
SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical 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 Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. General Guidance Leakage Current Hot Check
SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service 2. After removing an electrical assembly equipped with ES manual and its supplements and addenda, read and follow the devices, place the assembly on a conductive surface such as SAFETY PRECAUTIONS on page 3 of this publication. aluminum foil, to prevent electrostatic charge buildup or expo- NOTE: If unforeseen circumstances create conflict between the sure of the assembly. following servicing precautions and any
IC Remove/Replacement 3. Solder the connections. Some chassis circuit boards have slotted holes (oblong) through CAUTION: Maintain original spacing between the replaced which the IC leads are inserted and then bent flat against the cir- component and adjacent components and the circuit board to cuit foil. When holes are the slotted type, the following technique prevent excessive component temperatures. should be used to remove and replace the IC. When working with boards using the familiar r
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range 3. Test method This specification is applied to the LCD TV used LD31B/ 1) Performance: LGE TV test method followed LD36B chassis. 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC 2. Requirement for Test Each part is tested as below without special appointment. 1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C 2) Relative Humidit
No. Item Specification Remarks Analogue TV 1) PAL-BG Analogue TV : (RF) VHF: E2 to E12, UHF : E21 to E69 2) PAL-DK (CATV) S1 to S20, HYPER: S21 to S47 3) PAL-I/I’ 4) SECAM-BG Digital TV : VHF, UHF 5) SECAM-DK 2 Broadcasting system 6) SECAM L/L’ Satellite TV : VHF, UHF, C-Band, Ku-Band Digital TV 1) DVB-T/C/T2 * DVB-T2 ( T2 model only support ) * DVB-S/S2 (Satellite model only support ) Satellite Digital TV 1) DVB-T/C/S/S2 ► DVB-T - Guard Interval(Bitrate_Mbit/s) 1/4, 1/8, 1/16, 1/32 - Modulati
5. Video resolutions (2D) 5.1. Component Input (Y, CB/PB, CR/PR) No. Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) Proposed 1 720*576 15.625 50.00 13.5 SDTV ,DVD 576I 2 720*480 15.73 60.00 13.5135 SDTV ,DVD 480I 3 720*480 15.73 59.94 13.50 SDTV ,DVD 480I 4 720*576 31.25 50.00 27.00 SDTV 576P 5 720*480 31.50 60.00 27.027 SDTV 480P 6 720*480 31.47 59.94 27.00 SDTV 480P 7 1280*720 37.50 50.00 74.25 HDTV 720P 8 1280*720 45.00 60.00 74.25 HDTV 720P 9 1280*720 44.96 59.94 74.176 HDTV 720P 10 1920
6. Video resolutions (3D) 6.1. HDMI Input No. Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) Proposed 3D input proposed mode 1. 1920*1080 53.95 / 54 23.98 / 24 148.35/148.5 HDTV 1080P Frame packing 2. 1280*720 89.9 / 90 59.94/60 148.35/148.5 HDTV 720P Frame packing 3. 1280*720 75 50 148.5 HDTV 720P Frame packing 4 1920*1080 67.5 60 148.5 HDTV 1080P Side by Side(half), Top and bottom 5 1920*1080 56.3 50 148.5 HDTV 1080P Side by Side(half), Top and bottom 6 1280*720 45 60 74.25 HDTV 720P Side
ADJUSTMENT INSTRUCTION (4) Click "Connect" tab. If "Can't" is displayed, check connection 1. Application Range between computer, jig, and set. This specification sheet is applied to all of the LCD TV with LD31B/ LD36B chassis. (2) (3) 2. Designation (1) The adjustment is according to the order which is designated and which must be followed, according to the plan which can be changed only on agreeing. (2) Power adjustment : Free Voltage. (3) Magnetic Field Condition: Nil. (4) Input si
* After downloading, have to adjust Tool Option again. 3.3. EDID data (1) Push "IN-START" key in service remote control. (1) FHD HDMI EDID data (3D model) (2) Select "Tool Option 1" and push "OK" key. 0 1 2 3 4 5 6 7 8 9 A B C D E F (3) Punch in the number. (Each model has their number) 00 00 FF FF FF FF FF FF 00 1E 6D a b (4) Completed selecting Tool option. 10 c 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80 30 01 01 01 01 01 01 02 3A 80 18 71 38 2
* Auto-control interface and directions 4. Total Assembly line process (1) Adjust in the place where the influx of light like floodlight 4.1. White Balance adjustment around is blocked. (illumination is less than 10 lux). ▪ W/B Equipment condition (2) Adhere closely the Color analyzer(CA210) to the module CA210 : LED -> CH14, Test signal: Inner pattern(80IRE) less than 10 cm distance, keep it with the surface of the ▪ Above 5 minutes H/run in the inner pattern. (“power on” key Module and
How to adjust (3) Don't wear a 3D Glasses, Check the picture like below . 1) In case G gain more than 172 Adjust R Gain and B Gain less than 192 2) if the G gain value be adjusted down to 172 G gain increase to 172 and R gain / B gain increase same as G gain increases. 3) if R Gain / B Gain is more than 255 , the G gain adjust to less than 172. * CASE Medium / Warm First adjust the coordinate far away from the target 4.3. IR emitter inspection value(x, y). (1) Start 3D pattern insp
4.5. Outgoing condition Configuration 6.2. Command Set ■ When pressing IN-STOP key by SVC remocon, Red LED Adjust mode CMD(hex) LENGTH(hex) Description are blinked alternatively. And then automatically turn off. EEPROM WRITE A0h 84h+n n-bytes Write (n = 1~16) (Must not AC power OFF during blinking) * Description FOS Default write : <7mode data> write Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0, 5. HI-POT Test Phase Data write : Model Name and Serial Number write in EEPROM,.
7.2 LAN Inspection 7. MAC Address & CI+ key download 7.2.1. Equipment & Condition 7.1 MAC Address ▪ Each other connection to LAN Port of IP Hub and Jig 7.1.1 Equipment & Condition ▪ Play file : Serial.exe ▪ MAC Address edit ▪ Input Start / End MAC address 7.1.2 Download method (1) Communication Prot connection 7.2.2. LAN inspection solution ▪ LAN Port connection with PCB ▪ Network setting at MENU Mode of TV ▪ Setting automatic IP Connection : PCBA (USB Port) → USB to Serial Adapter ▪ Setting
BLOCK DIAGRAM - DVB-T2/C/S2(2D/3D) CI Slot Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 16 - Only for training and service purposes LVDS X-tal FPC(51P) (FHD/50Hz) 24M AIR/Cable ATV_Video (Analog) TDSQ-G601D(B) SERIAL FLASH ATV_SIF (Analog) SPI IC1300 (8M bit) (LGIT) MX25L8005M2I Seattleite FE_TS DDR3 1Gb DDR3 2Gb DDR3 Add. DDR3 1Gb IC1202 IC1201 IC1201 DDR3 Data H5TQ1G63EFR -PBC H5TQ2G63DFR -PBC LNB H5TQ1G63EFR -PBC LNB OUT A8303SESTR -T EEPROM 256Kbit I2C
EXPLODED VIEW IMPORTANT SAFETY NOTICE Many electrical 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. Copyright © LG Electronics. In
IC102 K9F1G08U0D-SCB0 NAND FLASH MEMORY
Memory OPTION MODEL OPTION MODEL_OPT_4 MODEL_OPT_6 PIN NAME PIN NO. LOW HIGH +3.3V_Normal +2.5V_Normal +3.3V_Normal +1.10V_VDDC Memory Note +1.10V_VDDC VDDC 1.05V MODEL OPTION PIN NO.U23 PIN NO. B8 MODEL_OPT_0 VDDC : 2026mA AB3 FHD HD 0 0 128M MODEL_OPT_1 F4 PHM_OFF PHM_ON MODEL_OPT_2 AB2 NON_DVB_T2 DVB_T2 128M+128M 0 1 MODEL_OPT_3 T25 NON_M120 M120 256M 1 0 MODEL_OPT_4 U23 MODEL_OPT_0 MIU0-128M MIU0-256M 256M+128M 1 1 Ginga MODEL_OPT_1 R203 100 MODEL_OPT_5 T24 NON_DVB_S DVB_S RF_SWITCH_CTL MODE
L13 POWER BLOCK (POWER DETECT 2) +3.5V_ST --> 3.375V --> 3.46V +24V --> 3.78V --> 3.92V (3.79V) PANEL_POWER +12V --> 3.58V --> 3.82V (3.68V) FROM LIPS & POWER B/D Power_DET +12V R402-*1 100 +3.5V_SOC_RESET +12V +3.5V_ST +3.5V_ST L412 Q409 120 R488 AO3407A CIS21J121 100K PD_+12V R463 RESET_IC_SOC_RESET PD_+3.5V R450 10K C443 R448 R439 PANEL_VCC 0 +3.5V_ST 10uF MMBT3906(NXP) C438 2.7K PWR_DET_ON_SEMI 33K IC408 16V G 1% 0.1uF 5% NCP803SN293 RESET_IC_SOC_RESET Q402 +3.3V_Normal 25V R402 POWER_DET 30
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