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Internal Use Only
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LED TV
SERVICE MANUAL
CHASSIS : LD36M
MODEL : 32LN52** 32LN52**-ZA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67729505 (1304-REV00) Printed in Korea
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CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ........................................................................ 3 SERVICING PRECAUTIONS ................................................................... 4 SPECIFICATION ...................................................................................... 6 ADJUSTMENT INSTRUCTION ............................................................. 10 SCR
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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
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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
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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
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SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to the LED TV used LD36M chassis. 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 Humidity: 65 % ± 10 % (3) Power Voltage : Standard input voltage (AC 100-240 V~, 50/60 Hz) * Standard Voltage of each products is marked by models. (4) Spec
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4. Model General Specification No. Item Specification Remarks 1 Market EU(PAL Market-37Countries) DTV & Analog (Total 37 countries) DTV (MPEG2/4, DVB-T) : 37 countries UK/Italy/Germany/France/Spain/Sweden/Finland/Neth- erlands/ Belgium/Luxemburg/ Greece/Denmark/Czech/ Austria /Hungary/Swiss/Croatia/Turkey/Norway/Slovenia/ Poland/Ukraine/Portugal/Ireland/Morocco/Latvia/Estonia/ Lithania/Rumania/Bulgaria/Russia/Slovakia/Bosnia/Serbia/ Albania/Kazakhstan/Belarus DTV (MPEG2/4, DVB-C) : 37 countries
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5. External Input Support format 5.1. HDMI Input 1 (PC/DTV) No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark 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 80.00 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 FHD only 9 1920*1080 67.50 60.00
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5.3. USB Input format Category Item Specification Remark Slide Show support. Photo JPG, PNG, BMP, TIF, TIFF, GIF 4096X4096 Background music support 32kbps ~ 320kbps(Bit rate) MP3 32kHz ~ 48kHz(Sample rate) 128bps ~ 320kbps(Bit rate) Music WMA 8kHz ~ 48kHz(Sample rate) 1.44kbps(Bit rate) WAV 44.1kHz(Sample rate) Category Codec Media Container Profile/Level Support Remark MPEG1/ DAT, MPG, MPEG, 1920X1080 @ 30I MPEG2 DVD, TS, TRP, TP MPEG4 (Divx 3.11, Divx 4.12, Divx 5.x, AVI, DIVX, MP4, Video
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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 LED TV with LD36M 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 signal Un
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* After downloading, have to adjust Tool Option again. 3.3. EDID data (1) Push "IN-START" key in service remote control. (1) HD HDMI EDID data(2D 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 01 01 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B
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▪ Normal line(LGD/CMI, March ~ December for Gumi, Global) 3.4. Function Check Cool Medium Warm - Check display and sound Aging time ■ Check Input and Signal items. NetCase4 X y x y x y (Min) 1) TV 271 270 285 293 313 329 2) AV (SCART / CVBS) 1 0-2 281 287 295 310 320 342 3) HDMI 2 3-5 280 285 294 308 319 340 * Display and Sound check is executed by Remote control. 3 6-9 278 284 292 307 317 339 4 10-19 276 281 290 304 315 336 5 20-35 275 277 289 300 314 332 Not to push the INSTOP key a
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* CASE Cool Mode * Auto-control interface and directions First adjust the coordinate far away from the target (1) Adjust in the place where the influx of light like floodlight value(x, y).B. around is blocked. (illumination is less than 10 lux). 1) x, y > target (2) Adhere closely the Color analyzer(CA210) to the module 2) x, y < target less than 10 cm distance, keep it with the surface of the 3) x >target, y < target Module and Color analyzer's prove vertically.(80° ~ 100°). 4) x < target
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6.3. Method & notice 5. HI-POT Test (1) Serial number D/L is using of scan equipment. 5.1. HI-POT auto-check preparation (2) S etting of scan equipment operated by Manufacturing - Check the POWER cable and SIGNAL cable insertion condition Technology Group. (3) Serial number D/L must be conformed when it is produced in production line, because serial number D/L is mandatory by 5.2. HI-POT auto-check D-book 4.0. (1) Pallet moves in the station. (POWER CORD / AV CORD is tightly inserted) * M
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7. MAC Address & CI+ key download 7.1 MAC Address 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 Connection : PCBA (USB Port) → USB to Serial Adapter (UC-232A) → RS-232C cable → PC(RS-232C port) * Caution : LJ21* chassis support only UC-232A driver. (only use this one. ) (2) MAC Address(Not use) & CI+ Key Download ▪ Set CI+ Key path Directory at Start Mac & CI+ Download Progr
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SCREW ASSEMBLY WORKING GUIDE ■ Screw specification and application situation A A A • FAB31339403 (M3*L6, BK, Machine) A A • 4EA B B B B A A A A • FAB31639801 C C (M4*L10, BK, Taptite) • 9EA • FAB30016124 (M4*L14, BK, Machine) • 2EA Check Screw Type When Screw is assembled at 'A' Part. If 'B' Screw is used at the 'A' part, Module will get damaged. Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 16 - Only for training and service purposes
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DISASSEMBLY WORKING GUIDE 1 2 Disassemble 2 screws that bind Disassemble 7 screws around the 4 edges of Stand Ass’y and set set after Separation Stand Ass’y 3 4 After opening cover of IR Ass’y Disconnect IR cable Disassemble 4 screws that fix Side AV bracket and Back-cover. 6 5 After lifting up back-cover slightly, Remove the back-cover and Disconnect SPK cable Disconnect LVDS and Power cable from Main PCB Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 17 -
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BLOCK DIAGRAM 1. MAIN TV Tuner Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 18 - Only for training and service purposes LCD Panel (FHD 51P/HD 30P) SCL/SDA LVDS (8 bit) DVB-T/C IF_P / N TDSS-G501D DDR3 2Gbit DDR_Data[0:15], DQS, DM … H5TQ2G63DFR-PBC (HYNIX) CI_TS_DATA[0:7]/CLK/VAL/SYNC (11) IC1201 FE_TS_DATA[0:7]/CLK/VAL/SYNC (11) EEPROM, 256Kbit SCL/SDA (RENESAS) CI_DATA[0:7] IC104 (8) CI_ADDR[0:14] Serial Flash, 8Mbit CI_ADDR[8:14] (15) SPI SCK/SDI (7) (MACRO
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2. POWER Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 19 - Only for training and service purposes 24V_Adapter 24V LED Driver 24V Q405 Audio AMP 12V 5V IC404 IC401 USB, CI, Normal DCDC,IC DCDC,IC 12V Q409 PANEL Scart AMP 3.5V 3.3V IC400 TU, EEPROM Q403 DCDC,IC NAND, MAIN IC 2.5V IC402 MAIN IC LDO 1.8V IC2603 TU LDO 1.1V IC403 MIAN IC Core DCDC,IC 1.5V IC407 DDR LDO NVRAM, MAIN IC
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3. I2C Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 20 - Only for training and service purposes S7LRM MSD804KKX +3.3V_NORMAL +3.3V_TU 2.2KΩ 1KΩ I2C_SCKM2 I2C_SCKM1 NVRAM TU_A DEMOD 22Ω 22Ω 33Ω I2C_SDAM1 I2C_SCAM2 IC104 20pF 20pF I2C_SDA/SCL TU_SDA/SCL +3.3V_NORMAL +3.3V_NORMAL 1KΩ 1KΩ AMP_SDA/SCL I2S_IN_BCK SPI1_CK Audio AMP T-CON 0Ω 0Ω SPI1_DI I2S_IN_SD IC3400 NVRAM V-COM_SDA/SCL
