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Re: 32GT740 on pwr up clicks three times then shuts down
Most likely you have a bad flyback transformer. These were famous for this. Transformer is getting hard to find. This is a high voltage circuit. Have a shop check it for you. Thanks for using fixya.
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Check the USB ports for damaged contacts. If the supply powers up and then shuts down immediately, you have a critical error.
Damaged USB port contacts can cause this but so can graphics cards etc. Open the machine up and remove all cards and memory sticks and unplug all the drives but LEAVE THE CPU ALONE!!
Now, turn it on. If it boots and starts beeping ( which it will with no memory installed) shut it down and reinstall each item you removed one at a time and turn it on after each single thing. When it stops booting and does whats its doing now then the last thing you plugged back in is the issue.
If it still doesn't power up with everything removed then the issue is in the mainboard.
If this is th case, my advice is to seek professional advice..
The GE (actually RCA) 32GT740 uses the CTC203 series chassis. The most common problem in that chassis is a coil connected to the base of the horizontal output transistor comes loose, and the set may run sometimes and then it will shut off by itself. If you keep trying to run the set with the solder joints cracked on that coil then the horizontal output transistor will short out and the power supply will squeel when plugged in. Do not plug the set in if it squeels as this could eventually cause major problems in the power supply. The set needs a new horizontal output transistor and a good resoldering of the drive coil, drive transformer and all related parts. If you do not have experience in unsoldering and soldering electronic components in TV's then have a qualified tech handle it for you.
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