LG 37LV3730 (CHASSIS:LB12B) Service Manual ▷ View online
Established
date
date
Standard Repair Process Detail Technical Manual
Revised
date
date
LCD TV
Error
symptom
symptom
Check Assemble state of Touch PCB
Content
D. Function error_ No response in remote controller,
key error
D-1-2
1. Remove Cable of Touch BCB
2. Remove Touch PCB Cover carefully
3. Check Asseble state of Touch PCB
4. Keep the guide of right side
2. Remove Touch PCB Cover carefully
3. Check Asseble state of Touch PCB
4. Keep the guide of right side
Established
date
date
Standard Repair Process Detail Technical Manual
Revised
date
date
LCD TV
Error
symptom
symptom
Check 3.5V and 5V of IR Terminal
Content
D. Function error_ No response in remote controller,
key error
D-1-3
1. Check the DC 5V on the 3.5V_ST terminal. (Pin 6)
2. When checking the Pre-Amp when the power is in ON condition, it is normal
2. When checking the Pre-Amp when the power is in ON condition, it is normal
when the Analog Tester needle moves slowly, and defective when it does not
move at all.
move at all.
3. Input voltage terminal: 3.5V_ST (Pin 6)
4. Remote controller receiver terminal: IR (Pin 9)
4. Remote controller receiver terminal: IR (Pin 9)
1.
①
1.
②
Established
date
date
Standard Repair Process Detail Technical Manual
Revised
date
date
LCD TV
Error
symptom
symptom
Check Touch Value and Threshold
Content
D. Function error_ No response in remote controller,
key error
D-1-4
1. Press the ADJ Button on the remote controller for adjustment.
2. Check THR Value (Default : 6/7/7/7/6/7/7/7) (THR range is 5~25, 5 is most
2. Check THR Value (Default : 6/7/7/7/6/7/7/7) (THR range is 5~25, 5 is most
sensitivity)
3. When touch the Touch PCB, and Touch value must lager than 10
4. IF Touch value is less than 10, adjust THR Value.
4. IF Touch value is less than 10, adjust THR Value.
Established
date
date
Standard Repair Process Detail Technical Manual
Revised
date
date
LCD TV
Error
symptom
symptom
Check Touch Value and Threshold
Content
D. Function error_ No response in remote controller,
key error
D-1-4
1. Press the ADJ Button on the remote controller for adjustment.
2. Check THR Value (Default : 6/7/7/7/6/7/7/7) (THR range is 5~25, 5 is most
2. Check THR Value (Default : 6/7/7/7/6/7/7/7) (THR range is 5~25, 5 is most
sensitivity)
3. When touch the Touch PCB, and Touch value must lager than 10
4. IF Touch value is less than 10, adjust THR Value.
4. IF Touch value is less than 10, adjust THR Value.