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LG Electronics 37LM611S-ZA, 37LM611T, 37LM611T-ZA Contents of LCD TV Standard Repair Process Detail Technical Manual

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Contents of LCD TV Standard Repair Process Detail Technical Manual

No. Error symptom Content Page Remarks

1

A. Video error_ No video/Normal

audio

Check LCD back light with naked eye A1

2LED driver B+ 24V measuring method A2

3Check White Balance value A3

4Power Board voltage measuring method A4

6A. Video error_ No video/Video

lag/stop

TUNER input signal strength checking method A5

7LCD-TV Version checking method A6

9

A. Video error_Color

error

LCD TV connection diagram A7

10 Check Link Cable (LVDS) reconnection

condition

A8

A9

11 Adjustment Test pattern -

ADJ Key A10

12

A. Video error_Vertical/Horizontal bar,

residual image, light spot

LCD TV connection diagram A8

13 Check Link Cable (LVDS) reconnection

condition

A8

A9

14 Adjustment Test pattern -

ADJ Key A10

15

<Appendix>

Defected Type caused by T-Con/

Inverter/ Module

Exchange T-Con Board (1) A-1/5

16 Exchange T-Con Board (2) A-2/5

17 Exchange LED driver Board (PSU) A-3/5 55” : driver board

Other : PSU

18 Exchange Module itself (1) A-4/5

19 Exchange Module itself (2) A-5/5

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Only for training and service purposes

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Contents

Main CHASSIS : LD21B Internal Use Only MODEL : 37LM61 1S MODEL : 37LM611T 37LM611T-ZA LED LCD TV SERVICE MANUAL Page SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE General Guidance Before returning the receiver to the customer, Leakage Current Cold Check(Antenna Cold Check) SERVICING PRECAUTIONS Page SPECIFICATION 1. Application range 2. Requirement for Test 3. Test method 4. Model General Specification Page 5. Video resolutions (2D) 5.1. Component Input (Y, CB/PB, CR/PR) 5.2. RGB Input (PC) LS35/LS34/CS46 series models are not supported. 5.3. HDMI Input(PC/DTV) 6. Video resolutions (3D) ADJUSTMENT INSTRUCTION 1. Application Range 2. Designation 3. Main PCB check process * Boot file Download 3.1. ADC Process 3.2. EDID Download 3.3. EDID data 3.4 Function Check 4. Total Assembly line process 4.1. Adjustment Preparation * Auto-control interface and directions * Manual W/B process using adjust Remote control. 4.2. EYE-Q function check 4.3. 3D function test 4.4. IR emitter inspection 4.5. Outgoing condition Configuration 5. HI-POT Test 5.1. HI-POT auto-check preparation 5.2. HI-POT auto-check 5.3. Checkpoint 6. Model name & Serial number D/L 7. MAC Address & CI+ key download 7.1 MAC Address SET PC 7.1.1 Equipment & Condition 7.1.2 Download method SCREW ASSEMBLY WORKING GUIDE LG2111A IC101 Rear Side Except of LS3500/CS460 TDSS TDSS- Rear Applied Model : **LM580T, **560T, **LS350T, **CS460T, **LM611T Side Except of LS350T/CS460T Rear Applied Model : **LM580S, **560S, **LS350S, **CS460S, **LM611S Side Except of LS3500/CS460 EXPLODED VIEW FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 22 LOCAL DIMMING Addr:10101-- I2C MODEL OPTION T25 T24 FHD HD MODEL_OPT_4 MODEL_OPT_0 FROM LIPS & POWER B/D Power_DET S7LR core 1.2V volt +1.5V_DDR ERROR_OUT is used for lamp(CCFL/EEFL) models. In other words, LED models need not use. IR/LED and control for normal models. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS GP4_S7LR2 10/08/13 USB_OCP_DIODE 7 IC1450 AP2191DSG USB (SIDE) USB2_DIODESUSB1_DIODES FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS HDMI_2 2011.10.04 GP4L_S7LR2 HDMI 8 HDMI HDMI_1 For BDP In-Packing Model - EMI Gasket Touch Jack FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS RGB-PC / SPDIF SPDIF OPTIC JACK PC AUDIO FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS RS232C_PHONE RS-232C COMMERCIAL MODEL OPTION COMMERCIAL/NonOS MODEL OPTION For Comsumer model, use 4PIN Wafer. ONLY 32LS3500 US MODEL(H:10mm)(H:7mm) LVDS for large inch [51Pin LVDS Connector] (For FHD 60Hz) FOR FHD REVERSE(8bit) MIRROR Pol-change Shift FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS K4B1G1646G-BCH9 H5TQ1G63DFR-H9C NT5CB64M16DP-CF H5TQ1G63DFR-H9C Serial Flash for SPI boot FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011/10/04 HEADPHONE 15 Headphone *Option : HEAD_PHONE FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS CI TS INPUT CI POWER ENABLE CONTROL CI HOST I/F * Option name of this page : CI_SLOT CI Region (because of Hong Kong) CLOSE TO MSTAR CI DETECT GP4L_S7LR2 ETHERNET ETHERNET * H/W option : ETHERNET FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011/12/23 TUNER_EU 26 +2.5V_TU GP4R_GLOBAL_TUNER_BLOCK close to TUNER ERROR & VALID PIN Close to TUNER close to TUNER DVB-S2 LNB Part Allegro PCB_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 SCART / COMPONENT&COMPSIT FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 2011/11/16 AMP_STA380BWE 34 IC3400 STA380BW AUDIO AMP(STA380BWE) Page Contents of LCD TV Standard Repair Process First of all, Check whether there is SVC Bulletin in GCSC System for these model. Contents of LCD TV Standard Repair Process Detail Technical Manual Continue to the next page date Revis ed date 1/14 symptom A. Video error No video/ Normal audio 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,,,) A4 A5 A6 A5 A6 Color error A7 A8/ A9 A10 date Revis ed date 5/14 symptom 2012. 01 .14 Vertical/Horizontal bar, residual image, light spot Vertica l / Horizontal bar, residual image, light spot, external device color error A10 External device screen error-Color error device and cable B. Power error Off when on, off while viewing, power auto on/off A13 A14 date Revis ed date 8/14 C. Audio error A15 A16 abnormal audio/di scontinuation/noise is same after Check input signal compared to No audio C. Audio error A16 Wrecked audio/ discontinuation/noise date Revis ed date 10/14 D. Function error 1. Remote control(R/C) operating error A4 D. Function error E. Noise F. Exterior defect