Question about Sony FD Trinitron WEGA KV-21CL10 21" TV
You have a fault in the power circuit which triggers the power to switch off. this could be possible in the poweer cirrcuitt and hence you must be able to trace this out. Open the set and using a heater blow hot air to the power circuit. this should be done when the set is cold and maybe the fesh day. if the set comes does not come on, then you have some semiconductor/electrolitic capacitors which are defective or weak. change them one by one in this circuit after using a meter to test the voltage. If +b is absent then the freq trigg for the smps is absent, check on the optocoupler/ the transformer solderings. Attempt to service only if you familiar with electronics and power related electronics.this could be dangerous if not aware of the voltages. Hope i could help. Good day
Posted on Jul 07, 2010
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Posted on Jan 02, 2017
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