LG 49UF640 Series Service Manual
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LG 49UF640 Series Service Manual

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LED TV
LED TV
SERVICE MANUAL
SERVICE MANUAL
CHASSIS : LD59R / LD5ZR
CHASSIS : LD59R / LD5ZR
MODEL : 43/49UF640*
MODEL : 43/49UF640*
CAUTION
CAUTION
BEFORE SERVICING THE CHASSIS,
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
North/Latin
North/Latin
America
America
Europe/Africa
Europe/Africa
 Asia/Oceania
 Asia/Oceania
43/49UF640*-ZA
43/49UF640*-ZA
Internal Use Only
Internal Use Only
http://aic.lgservice.com
http://aic.lgservice.com
http://eic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
http://biz.lgservice.com

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  • Page 1 Internal Use Only Internal Use Only North/Latin North/Latin America America http://aic.lgservice.com http://aic.lgservice.com Europe/Africa Europe/Africa http://eic.lgservice.com http://eic.lgservice.com  Asia/Oceania  Asia/Oceania http://biz.lgservice.com http://biz.lgservice.com LED TV LED TV SERVICE MANUAL SERVICE MANUAL CHASSIS : LD59R / LD5ZR CHASSIS : LD59R / LD5ZR MODEL : 43/49UF640* MODEL : 43/49UF640* 43/49UF640*-ZA 43/49UF640*-ZA...
  • Page 3 CONTENTS CONTENTS CONTEN CONTENTS ......................................SAFETY PRECA SAFETY PRECAUTIONS UTIONS ..............................SERVI SERVICING CING PRECAUT PRECAUTIONS IONS ............................SPECIFIC SPECIFICA TION TION ....................................

  • Page 4: Safety Precautions

    SAFETY PRECAUTIONS SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE IMPORTANT SAFETY NOTICE Many el Many electrical ectrical and mechanic mechanical parts al parts in this in this chassis chassis have spec have special safety safety-related -related characteristics. characteristics. These These parts ar parts are identifie identified by...

  • Page 5: Servicing Precautions

    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 ...
  • Page 6 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 at against the cir  - component and adjacent components and the circuit board to cuit foil.

  • Page 7: Specification

    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 LED TV used LD59R / 1) Performance: LGE TV test method followed LD5ZR chassis. 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC specification...
  • Page 8 Item Specication Remarks (1) PAL/SECAM B/G/I/D/K, SECAM L/L’ Broadcasting system (2) DVB-T/T2, C, S/S2 (1) Digital TV - VHF, UHF - C-Band, Ku-Band (2) Analogue TV Program coverage -VHF : E2 to E12 -UHF : E21 to E69 -CATV : S1 to S20 -HYPER : S21 to S47 ►...
  • Page 9 5. External Input Format 5.1. Standard Level For Input Signal (Video, Audio, Y/C, Component) Item Unit Video Input Level S Video Input Level(Y) 0.85 1.15 S Video Input Level(C-Burst) 0.143 0.286 Audio Input Level Vrms PAL,SECAM, AV1(SCART), AV2, Component Component Video Input Level (Y, C 5.2.
  • Page 10 (2) HDMI Input(DTV) Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Proposed Remarks 640*480 31.46 59.94 25.13 SDTV 480P 640*480 31.50 60.00 25.13 SDTV 480P 720*480 15.73 59.94 13.50 SDTV, DVD 480I(525I) 720*480 15.75 60.00 13.51 SDTV, DVD 480I(525I) Spec. out but display 720*576 15.62 50.00...
  • Page 11 (3) HDMI Input (PC) Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Proposed Remarks 640*350 31.46 70.09 25.17 720*400 31.46 70.08 28.32 640*480 31.46 59.94 25.17 VESA(VGA) 800*600 37.87 60.32 40.00 VESA(SVGA) 1024*768 48.36 60.00 65.00 VESA(XGA) 1152*864 54.34 60.05 80.00 VESA 1280*1024 63.98 60.02 109.00...

  • Page 12: Adjustment Instruction

    ADJUSTMENT INSTRUCTION 1. Application Range 3.2. LAN Inspection 3.2.1. Equipment & Condition This specification sheet is applied to all of the LED TV with LD59R / LD5ZR chassis. ▪ Each other connection to LAN Port of IP Hub and Jig 2.
  • Page 13 3.3. LAN PORT INSPECTION(PING TEST) 3.5. CI+ Key checking method Connect SET → LAN port == PC → LAN Port (Check the Section 3.1) Check whether the key was downloaded or not at ‘In Start’ menu. (Refer to below). 3.3.1. Equipment setting (1) Play the LAN Port Test PROGRAM.

  • Page 14: Manual Adjustment

    4. Manual Adjustment (1) EDID for 2D Model(UF68) 1) DTS * ADC adjustment is not needed because of OTP(Auto ADC # HDMI 1(C/S : A0 C7) - HDMI UHD Deep On Case adjustment) EDID Block 0, Bytes 0-127 [00H-7FH] 4.1. EDID(The Extended Display Identification FF FF FF FF FF FF 00 1E 6D Data)/DDC(Display Data Channel) download...
  • Page 15 # HDMI 2(C/S : E6 0D) - HDMI UHD Deep Off Case EDID Block 1, Bytes 128-255 [80H-FFH] EDID Block 0, Bytes 0-127 [00H-7FH] 5D 5E FF FF FF FF FF FF 1E 6D  A0 6E B8 3C 0A EE 91 B0 0E D0 1E D0 28...
  • Page 16 3) PCM # HDMI 2(C/S : E6 88) - HDMI UHD Deep off case # HDMI 1(C/S : A0 42) - HDMI UHD Deep On Case EDID Block 0, Bytes 0-127 [00H-7FH] EDID Block 0, Bytes 0-127 [00H-7FH] FF FF FF FF FF FF 1E 6D 0A EE 91 FF FF FF FF FF FF...
  • Page 17 4.2. V-COM Adjust (ONLY FOR EPI model) ▪ V-com Adj. must begin as start command “va 00 00” , and finish as end command “wb 00 ff” 4.2.1 Overview ▪ V-com adjust data ▪ V-COM adj. Objective & How-it-works V-com Data - Objective: To r educe each Panel’s V-COM voltage 43 inch deviation...
  • Page 18 4.3.3. Equipment connection MAP 4.3.5. Adj. method (1) Auto adj. method Color Analyzer  1) Set TV in adj. mode using POWER ON key. RS-232C Probe 2) Zero calibrate probe then place it on the center of the Computer  Display. RS-232C RS-232C 3) Connect Cable.(RS-232C to USB) Pattern Generator ...
  • Page 19 4.3.6. Refere nce (White balance adjusmtm ent 4.5. Magic Motion Remote control test coordinate and color temperature) - Equipment : RF Remote control for test, IR-KEY-Code Remote control for test ▪ Luminance : 206 Gray ▪ Standard color coordinate and temperature using CS-1000 - You must confirm the battery power of RF-Remote control (over 26 inch) before test(recommend that change the battery per every lot)
  • Page 20 4.7. Option selection per country 5. GND and Internal Pressure check 4.7.1. Overview 5.1. Method - Option selection is only done for models in AJ/JA/IL (1) GND & Internal Pressure auto-check preparation - Check that Power Cord is fully inserted to the SET. (If 4.7.2.Method loose, re-insert) (1) Press "ADJ"...

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