My TV stopped working the other day. When I press the power button, the green light comes on, and it chirps for a second, starting high then dropping out, and the green light turns off. It repeats this routine 3 times, then stops. Do I only need the IHVT, the xsistor, or both? Thank you.
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The usual cause is a shorted horizontal output transistor. The way this chassis is designed, the supply makes 140 volts which is always on and applied to the transistor. The heavy load on the power supply causes it to make that chirping sound as it keeps trying to start, then shuts down right away.
The h-out is Q14401, RCA part number 237470. A 2SC5148 can replace it.
if you have chirping sound .. check your horizontal out transistor that may be one cause there are seven or nine green lights around power supply see if all came on if not call me 520-248-4242 or leave message
If one of the secondary supplies is shorted, the power supply will "chirp" when plugged in. This is the power supply's way of protecting itself and this usually happens when the horizontal output transistor is shorted. If this set was in my shop and needed a new output transistor, a fair price would be right around $100.
You have a short somewhere in the load for the power supply. Probably the horizontal output transistor and the flyback transformer.
You need to have it checked out by a tech.
You may want to get an estimate.