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I have a Sony TV model number KV-2167MT Trinitron.
I'm facing problem while switch on from front switch
Standby LED blinking while press any switch Like Volume up down, program up
down. but power not on. It is hearing low level zoom sound from power supply. Thanks for solution!
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Blinking of standby light in Sony sets are fault indications. You just count the number of blinks occur at a time, by switching the set ON-OFF by its front panel power switch, not by the remote control handset. Just do it for at least three or four times, count the exact number of blinks occurs there, and inform it to me through Fixya. Through the number of blinks, I can locate the faulty section, of somtimes to the exact fault location. Count it keenly and inform me. OK.
I have not worked on your particular model. But, I have serviced many TV sets over the years. My answer will ge generic.
Check all the capacitors in the horizontal output stage and power supply areas for high ESR. All the caps that are out of spec must be changed.
The high voltage multiplier & flyback can also cause the fault you are having.
You have to consider that the DC voltages are not the only important spec that has to be met. There are also many power drive signals that work with reactive devices. If there is any defect in the critical areas there will be failures.