LG CM9530 - Booting When Power on the Set

3-4
ONE POINT REPAIR GUIDE
2. NO BOOTING WHEN POWER ON THE SET
The set doesn’t work when press the power button on the front board or the remote
control.
2-1. MICOM (IC101)
2-1-1. Solution
Please check and replace IC101 on MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Check the 5.6 VA (CN106) and 3.7 VA (IC104) in standby mode.
 If there is no 5.6 VA, check the SMPS and if doesn’t appear 3.7 VA, check IC104.
2) Check 5.6 VA, 12 V, FL+, FL-, an VKK (39 V) when power on the set.
-
If the set doesn’t work regardless of what the KEY1 changes high to low while pressing the power button.
X100 and X101 work normally but, if you can not power on the set,
replace the IC101 with a new one on the MAIN board.
2-1-3. Service hint (Any picture / Remark)
IC101
X100
(32.768 kHz)
X101
(12 MHz)
KEY1
(Pin15)
< MAIN board top view >