No Booting When Power On The Set - LG CM2460 Service Manual

2. NO BOOTING WHEN POWER ON THE SET

The set doesn't work when press the power button on the display board or the remote control.
2-1. FLASH MEMORY
2-1-1. Solution
Please check and replace IC105 on MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Check 5.1 V to PN200 in standby mode.
  If there is no 5.1 V, check the SMPS.
2) Check 12 V, 5.1 V and PVDD when power on the set.
- If the set doesn't work regardless of what the KEY1 (R131) changes high to low while pressing the power button.
X100 and X101 work normally but, if you can not power on the set, replace IC105 with a new one on the
MAIN board.
2-1-3. Service hint (Any picture/ Remark)
KEY1 (R131) KEY1 (R131)
ONE POINT REPAIR GUIDE
IC105 IC105
< Signal check point >
PWR_CTRL (R149) PWR_CTRL (R149)
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