LG 37LV370S Service Manual page 66

Standard Repair Process Detail Technical Manual
Error
LCD TV
symptom
Content
Checking method when power is ON
1. Check the ST-BY DC 3.5V output voltage from Soft Touch PCB Test Point T6
2. Check the operating condition of the power KEY on the Soft Touch PCB (Test Point P4, T5)
3. Check the AC-DET (AC) DC3.5V voltage on POWER BOARD.
4. Check the POWER ON High (About DC 1.8V or above) voltage with input from POWER BOARD.
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B. Power error _ No power
Checking method when power is ON
① ②
Established
2008. 2 . 1
date
Revised
date
④
Electronics 6-3
17/33 - 6/13
③
LGE Internal Use Onl