The tv was brought in by a friend and the standby light blinks continuosly while the tv fails to start.
The tv uses an IP board as seen below
From my experience I knew this fault is always related to the power and mainboard so I decides to firstly check the power circuit.I detect drop in voltage across the power capacitor so also at the secondary side of sm transformer.I check the capacitance of the power cap using my digital meter and detect the capacitor reads 1.1 instead of 98 to 100uf.So definitely it might be the power cap is bad.
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I replaced this power capacitor with another one of same value.I powered the tv and the blinking stopped.The standby light came on and the tv works perfectly
The tv uses an IP board as seen below
From my experience I knew this fault is always related to the power and mainboard so I decides to firstly check the power circuit.I detect drop in voltage across the power capacitor so also at the secondary side of sm transformer.I check the capacitance of the power cap using my digital meter and detect the capacitor reads 1.1 instead of 98 to 100uf.So definitely it might be the power cap is bad.
I replaced this power capacitor with another one of same value.I powered the tv and the blinking stopped.The standby light came on and the tv works perfectly
Lg Lcd Tv with standby light blinking continuosly
neyod
