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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.
Press the TV button on the remote, make sure the TV is plugged in, check the electrical outlet to make sure it is live if the TV does not turn on. If these actions do not solve the problem, press the Power button on the front of the TV. If the TV turns on, replace the batteries in the remote control and reset it by pressing the number 1 button for 60 seconds. If necessary, reprogram the remote.
Unplug the TV for two minutes, then plug it back in if the buttons on the remote don't work. Make sure the remote is in TV mode.
Change the settings on the sleep timer if the TV turns off unexpectedly. Unplug the TV and wait five minutes before plugging it back in if necessary.
Check your antenna connections and cables if the sound is okay but the picture is poor. If all the connections are good, adjust the sharpness function.
I feel foolish asking this but have you plugged it in? If you have it plugged in are you trying to turn it on with the remote? Have you tried to turn it on by pressing the on switch on the tv? Does the outlet work?
There could be any number of reasons for this. If the outlet has power (you can check this with any electrical device you have, plug it in and turn it on). So if the outlet has power AND the remote has fresh batteries AND the tv is plugged in to the outlet but still will not turn on even after pressing the switch on the tv...then you may have a blown fuse on the power input line into the tv. Take the tv to your local repair shop and ask them to look, if the fuse is blown they'll replace it and voila, your tv is fixed!
Please do not try to do this yourself, there is over 10,000 volts available at the flyback transformer even with the tv not plugged in.
no remote but tv was working with front power key? unplug from ac outlet and plug back and listen for any type of indication (noise or chirp) that something energizes inside if theres nothing then suspect a power supply problem, main fuse blown, shorted low volt rectifiers other components could be at fault.
Change the batteries on the remote, point the remote at the Sony, and hold in the power button for 5-7 seconds. Then depress and re-press the power button - see if you can get the tv remote to respond again.
Then, always try the quick reset:
How to perform a power reset on a Sony® television.
Turn off the television.
IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.
NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
Your problem is a shorted horizontal output transistor C5148 located behind the highvoltage transformer on a heat sink with a clip over it and you can't see the number unless you remove the clip Has to be unsolded and solder in new. Also the highvoltage transformer must be replaced This is the big part with the large red wire coming out and going to the top of the picture tube. Must be unsoldered and replaced with original RCA .....do not get a replacement It has several connections plus three wires to connect to it and I recommend using desoldering brad can get at Radio Shack 5 foot roll. Well as you can see it gets pretty involved. You can't get the parts from most distributors unless you have a business. If he tackles it and has a distributor the parts would run about $50 to $60 and a repairman average should be less than $200 and more than $150 hope this helps. Contact me for any questions you may have. I am more than willing to help.