Hi: Check the power supplu for swollen capacitors, there are ususally two capacitors on the power supply that go bad you can idenify them easily there tops will be puffy on their tops, Also check for the same symptoms on the inverter board, check the two caps on this board also, when the caps become faulty the correct operating voltage to the main board will cause all types of symptoms.
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Hi:
Check the power supplu for swollen capacitors, there are ususally two capacitors on the power supply that go bad you can idenify them easily there tops will be puffy on their tops, Also check for the same symptoms on the inverter board, check the two caps on this board also, when the caps become faulty the correct operating voltage to the main board will cause all types of symptoms.