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Toshiba Color TV Relay clicks slowly. TV does not come ON.

I have a Toshiba Color TV mod: 20AF41C.
When I plug it in, the relay ''RY501'' clicks about once every 4 seconds. When it clicks, the contacts inside the relay do not stay closed. The coil is not energised enough to close the contacts. Only enough to cause the clicking noise. I have opened the relay to confirm that this is what happens.

I also removed the relay (RY501) and if I connect the set, I hear a very faint click at the same speed (about one click every 4 seconds) I tried to discover the source of this faint clicking, but it is too faint for me to locate where it is coming from.

If I press the power switch, nothing happens. I tested the Power switch, and it is normally opened, and it closes when I press it.

Can anyone help.

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  • 668 Answers

Electrolitic Capasitors in the power supply going or being bad will cause this. At some point a low value resister also will start to run hot or burn up. I believe it it a 16v 1500 uf cap near the relay. I would also replace any 10uf 160v caps in the powersupply too.
Hope this Helps,
Skyassoc

Posted on Jun 17, 2009

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