3-4
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Only for training and service purposes.
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. FLASH MEMORY
2-1-1. Solution
Please check and replace IC501 on MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Check 12VA to IC102 in standby mode.
If there is no 12 VA, check the SMPS.
2) Check 12VA and PVDD when power on the set.
-
If the set doesn’t work regardless of what the KEY2 changes high to low while pressing the power button.
X500 and X501 work normally but, if you can not power on the set, replace IC500 with a new one on
the MAIN board.
2-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
IC500
IC501
IC102
12 VA
KEY2
X500
X501
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