An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert who has written 50 answers of more than 400 characters.
An expert who has answered 200 questions.
Re: tv wont turn on
A high pitched chirp is a sign that you have a short on the load of your power supply. I just finished repairing one of these sets and it had a shorted horizontal output transistor and a bad flyback transformer.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
If this is a crt type tv. This could be attributed to a faulty high voltage circuit. A defective horizontal output transistor or the flyback. Or better to check some minor component with regards to flyback like diodes.
The noise you are hearing is probably the degauss (it demagnetises the screen every startup). The most likely problem is the power supply. Do a replacement of all the caps on the powersupply board and it will likely fix your problem. Because it still has power to the degauss coils it hasn't blown the fuse. Power supply not starting like that is usually caused by a small electrolytic capacitor near the heatsink on the mains side of the powersupply. They can be replaced for about 10 cents.
Hope this helps
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.
I have seen some RCA TV's with this problem and it has usually been a switch going bad on the keypad of the tv. This can be confirmed by disconnecting the plug from the control panel to the main chassis.If you are lucky, and the ir rcvr for the remote is not on the control board, you can still control tv with the remote.Good luck.