Question about RCA F32650 32" TV

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IHVT transformer??? the tv power light turns on and cycles with no picture or sound. I unplugged the Black and Red connector from the base of tube coil and that will allow the green light to stay on. As soon as there is a load on that part of the circuit it seems like it is power cycling. Is this a symptom of the transofrmer?

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It could be the transformer or a related component. If you are not able to circuit check but have an idea on how to measure the parameters of components then check them for integrity. Also a visual inspection might turn up the problem and make sure that there are no dry solder joints. If after that it still does not work do not feel like you have failed just replace everything where it came from and get in touch witha competant technician. Good luck.

Posted on Oct 03, 2008

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1 Answer

Blinking timer light, No picture or sound.


Ur high voltage is dead,the FBT,the flyback transformer,the big black block of plastic with a red wire with a cap hook to the CRT(tv tube).That is dead.

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Ur high voltage is dying.The block of plastic with a red wire with a cap hook to ur CRT(tv tube).The FBT,it call the Flyback transformer,that is dying.That must be replace.

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Problem on turning on the TV


Hello This is a case of the shhutdown circuit activating. I would suggest that you check the horizontal output transistor to see if it is short or open. Then I would check the IHVT (Integrated High Voltage Transformer)to see if it is open or shorted (to check for a shorted transformer do a ring test). In any event this should indicate is the transformer is good or not. If you have a background in electronics you can do the above test, if not please take this TV to a qualified TV technician. I hope this helps, Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

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1 Answer

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Hello randapaint,

This might be from the IHVT (Integrated High Voltage Transformer), or more specifically a short in the IHVT causing it to arc, producing the high pitched whine, you are hearing. Take the back off of the TV and try to detect where the sound is coming from, more then likely you will notice it coming from the section that contains a large component with a large red cable coming from it, to the top of the CRT (picture tube). Replace the IHVT (with the exact same model) if it is bad.

I hope this helps,

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1 Answer

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Hello miko_alexand,

That problem indicates that the Horizontal Output Transistor (HOT)is beginning to malfunction. I would suggest that if you have a background in electronics that you do the following:

1) unplug and open the back of the set

2) look for the HOT and locate the Collector, Base and Emitter of the transistor and using your multimeter set to read resistance measure from the collector to the ground, it should read high almost infinite, red from base to ground it should read low and from emitter to ground it should read low.

3) if the HOT when read from the collector to ground reads low then you can bet that the HOT has a short circuit from collector to ground, and will have to be replaced.

4) In addition I would also perform a ring test on the Integrated High Voltage Transformer (IHVT).

This will tell you if the IHVT has suffered any damage from the HOT malfunctioning. You may end up having to replace both of the components.

If you do not have a background in electronics I would suggest that you take the TV to your local TV repair facility.

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

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1 Answer

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sounds like the tube is out. could be the transformer but probably not. I don't recommend you try fixing this yourself.

However some rcas are funny: unplug it again and leave it unplugged for about an hour then try again.

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the picture tube is most likely not out. but there is a problem in the high voltage transformer part of the set( this is what fires up the picture tube). a problem like that can be just as expensive as a new picture tube. if it's not still in warranty it would be cost prohibitive to repair.

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Bad IHVT ( HV transformer ) part # 257805 or ASTI 2078
......................................................T.

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1 Answer

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Bad IHVT ( flyback transformer)--need complete service
number off back for part #-----------Let me know...T.

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