Question about Goodmans 257NS 20" TV

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Tv keep going on standby when you turn it on

Goodmans 32 inch lcd tv

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Tv goes into standby all the time if a power supply is not fine, what happens is that a power supply produces two voltages, one small one powers a standby components and bigger voltage powers a line transformer which later produces more small voltages,
then later cancels the first small voltage.

chec your power supply semi conductors like, transistors, diodes and small value resistors, on your power supply. some power supply uses a IC to oscillate a ht. so check a supply at a w/shop.

Posted on Apr 29, 2009

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Check power supply board Power inverter IC

Posted on Apr 21, 2014

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