Question about Polaroid FLM-2625 26 in. HD-Ready LCD Television
I would return the tv for a replacement
it sound as if one of the transformers is arking internally. or you can replace the "Control module" but it is in very short supply
Lou Margo
Allied Electronics
[email protected]
Posted on Nov 16, 2007
It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be your output drivers- the MOSFETS/IC's fitted for both the channels, Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise like a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.
You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board, maybe the protect circuit by itself is shutting off due to a faulty bias , maybe a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the protect is off then check for short on the speakers.
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I have the same problem when I plug in any peripheral there is this loud humming; came out of nowhere. Set is about 2 yrs old. Humming sound comes and goes (never completely). When I plug in computer or hdmi connecter sound intensifies. Any answers would be appreciated thanks.
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