Scart Arrangement 2.(Half Scart) Pin Signal Signal Level Impedance 1 Audio Output B (right) 0.5 Vrms < 1㏀ 2 Audio Input B (right) 0.5 Vrms > 10㏀ 3 Audio Output A (left) 0.5 Vrms < 1㏀ 4 Ground (audio) - - 5 Ground (blue) - - 6 Audio input A (left) 0.5 Vrms > 10㏀ 7- - - 8 Function Select (AV control) High (9.5 - 12V) - AV Mode Mid (5 - 8V) - Wide Screen > 10㏀ Low (0 - 2V) - TV Mode 9 Ground (Green) - - 10 Comms Data 2 11 - - - 12 Comms Data 1 13 Ground (Red) - - 14 Ground (Blanking) - -
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ADJUSTMENT INSTRUCTION 6) Select proper CH_memory file(*.nvm) for each model at 1. Application Range [Channel Download] => [Write Batch]. This spec. sheet is applied to all of the LD61A chassis Next, select proper binary file(*.bin) including the CH manufactured at LG TV Plant all over the world. information for each model at [Channel Download] => [NVRAM File]. 2. Specification. 2.1 Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isol
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3) Connect RS232 cable(Use Download Jig and general RS- Before AV ADC Calibration, should be executed the 232C Twisted Serial Cable). "Panel size selection 5. Select method of Panel size 5.1 Press ADJ Key in the Adjust remocon 5.2 Select "Panel Control" by using ▲/▼ (CH+/-) key, and press (ENTER) *Before upgrading "Hudson flash memory", push the switch on the download jig ‘inside’. 4) Operate LGIDS. 5) Select "Hurricane" and "ALL" on Model dialog and check your connection in Communication dial
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6.1 Adjustment of RF/AV/S-VIDEO 6.3 Adjustment of RGB * Required Equipments * Required Equipments - Remote controller for adjustment - Remote controller for adjustment - MSPG-925F Pattern Generator (Which has Video Signal: -l MSPG-925F Pattern Generator 100% Color Bar Pattern shown in Fig. 1) (Which has XGA [1024*768] 60Hz 100% Color Bar pattern => Model: 202 / Pattern: 33 shown in Fig. 3) Case1) EC and FC model use PAL-BGDHI (composite signal) 6.3.1 Method of Auto RGB Color Balance 1) Input the
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SVC REMOCON NO KEY FUNTION REAMARK To turn the TV on or off 1 POWER To turn the TV on automatically if the power is supplied to the TV. (Use the 2 POWER ON POWER key to deactivate): It should be deactivated when delivered. To activate the mute function. 3 MUTE To check TV screen image easily. Shortcut keys 4 P-CHECK To check TV screen sound easily Shortcut keys 5 S-CHECK To select size of the main screen (Normal, Spectacle, Wide or Zoom) Shortcut keys 6 ARC Switch to closed caption broadcasting
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- 17 - TROUBLESHOOTING YES NO Is the input Attach the input No image Is the Set ON? cable attached? cable(s) NO YES Push the POWER ON key Check the Power Error What is Condition of all PASS the input signal Connectors, wafers, mode? I2C In the FAIL system. Check 33V Check Vout FAIL And 5V at pin RF Signal at pin 9. 7,6 resp. of Of Tuner Tuner PASS PASS Change the Tuner Check 24bit PASS PASS PASS FAIL Check LVDS Check Main_V Check Sub_V Check Vout Correct the circuit RGB at AR700- Output of
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- 18 - YES NO Is the input Is the Attach the input No image cable attached? cable(s) Set ON? NO YES Push the POWER ON key Check the Power Error What is Condition of all PASS the input signal Connectors, wafers, I2C In the mode? FAIL system. Check CVBS Check 3.3V FAIL AV1 Signal at R103 At L110 on jack of jack board board PASS PASS Replace Jack board PASS Check 24bit PASS Check LVDS Check Main_V Check Sub_V RGB at AR700- Output of Cortez At R309 At R302 AR705 PASS Check for S/W error FAIL FA
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- 19 - YES NO Is the Attach the input Is the input cable No image Set ON? cable(s) attached? NO YES Push the POWER ON key Check the Power Error What is Condition of all PASS the input signal Connectors, wafers, mode? I2C In the FAIL system. Check CVBS Check 3.3V FAIL AV2 Signal at R105 At L110 on jack of jack board board PASS PASS Replace Jack board Check 24bit PASS PASS Check LVDS Check Main_V Check Sub_V RGB at AR700- Output of Cortez At R309 At R302 AR705 PASS Check for S/W error FAIL F
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- 20 - YES NO Is the Attach the input Is the input cable No image cable(s) Set ON? attached? NO YES Push the POWER ON key Check the Power Error What is Condition of all PASS the input signal Connectors, wafers, mode? I2C In the FAIL system. Check CVBS Check 3.3V FAIL AV3 Signal at R144 At L110 on jack of jack board board PASS PASS Replace Jack board Check 24bit PASS PASS Check LVDS Check Main_V Check Sub_V RGB at AR700- Output of Cortez At R309 At R302 AR705 PASS FAIL Check for S/W error FA
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website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html
LCD TV
SERVICE MANUAL
CHASSIS : LD61A
FACTORY NAME : 32LC2D(B)-EC/37LC2D(B)-EC/42LC2D(B)-EC
MODEL : 32LC2D(B)/37LC2D(B)/42LC2D(B)
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
R
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CONTENTS CONTENTS .............................................................................................. 2 PRODUCT SAFETY ..................................................................................3 SPECIFICATION ........................................................................................6 ADJUSTMENT INSTRUCTION ...............................................................13 TROUBLE SHOOTING ............................................................................
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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 Replacement Parts List. 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. Leakage Current Hot Check (See belo