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Rca ctc179cm model G35831AT tv works ok but after 5mn start on and off this do for 6 or 7 times,then off. i changed:fly/caps/diodes ic(no answer)still on/off but if i take out the CRT board HV & audio still on.any wag please thanks ronald.

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Check this site for additional info. You might have to re-solder the tuner shielding for proper grounding.
If you need the service manual go here and register to get it.

Posted on Mar 31, 2008

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Posted on Jan 02, 2017

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Why not flyback oscilate or fly back voice?


I am unable to give any specific advice but if there is voltage or power to the Line Output circuit then its possible a short or load exists on the flyback transformer which causes a shutdown in this circuit.
I am afraid practise and knowledge of a particular model is a great help to find its faults.
The Flyback transformer (if like I remember) will have sub power supplies from it to drive audio, frame etc so a short on these will cause problems, also the rectifier diodes to these can fail you may need to remove one end of a diode for accurate testing.
Another failure point in power supply rails is capacitors which go open circuit this makes their voltage line unstable, also on the capacitor problem list are those around its flyback circuit that act as snubbers to tune it, these were at my time little blue capacitors of several KV which had a habit of shorting or change value.
Any of these will disturb a balanced start up cause a spike and shutdown.
Without particular knowledge of a model and its circuit I am unable to help further, I would look for shorts on Diodes and components, disconnect supply rails to audio and frame if they come from the flyback transformer (these are the heaviest loads and will only serve those particular circuits) then it will possibly capacitors gone o/c (I used to carry a cap tester years ago which used a 555 ic easy and robust).

Hope this helps in some way...

Mar 05, 2015 | LG Televison & Video

1 Answer

RCA TV changes channel and volume, and shuts off by itself.


ok its not a cap problem.. memory ic problem...u have to replace memory ic the nos are i think 24c16 or24c08
u have to buy the memory by giving ur model no of the tv

Mar 06, 2010 | RCA 27V520T 27" TV

1 Answer

RCA G35831AT


This is a loss of the "pincushion correction" circuit. These sets are known for bad high voltage capacitors in the horizontal circuit that cause a loss of pincushion correction. It could also be loose solder connections in the horizontal circuit. This can be a dangerous circuit to work with. Have a shop check it for you. Thanks for using fixya.

Jan 11, 2010 | RCA G35831AT 35" TV

3 Answers

NEED ASSISTANCE


Here is the infomation you need...
df77555.jpg

Feb 16, 2008 | RCA F25432 25" TV

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Check the AC fuse...follow AC cord into set....find fuse in clip.
Be sure to replace with correct amperage value................T.

Dec 24, 2007 | Televison & Video

1 Answer

TV turn on for few seconds then turn off.


This TV has a network of diodes connected to a PROTECT-1 line monitored by the control IC. If any circuit pulls this line low, the control IC turns the system OFF. The diodes act to isolate all the circuits from each other, its called a diode-OR circuit.
You can troubleshoot by opening a diode which disconnects a circuit from pulling the line low. I had a hunch the EL backlight board was bad, so after opening that protect line the power stayed ON.

I found a bad .068uF 250V cap on the transformer primary, it measured .002uF. I've replaced the cap and the other two on the other transformers just for good measure.

It probably took more time than the TV is worth, but my friend's Mom will be happy, and thats worth it.
I hope this helps, look around for the service manual, it can be found online.

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2 Answers

RCA big screen tv


whenever fuse blows every time it is the indication of short circuit in tv. so please do not put fuse unless you know the cause of blowing fuse. these are the reasons of blowing fuse. 1 main filter cap.short. 2 rectifier diode short. 3 swithing transistor short 4 horizontal output transistor short 5 caps & diodes connected to flyback transformer short. 6 print short. 7 at last if every thing ok then flyback transformer defective. hope this will help. if you are not a tech person call skilled tech to fix it. good luck

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1 Answer

RCA G35831AT 35" TV


The G35831AT uses the CTC179 series chassis. When you touched the wires to the speaker jacks you probably somehow managed to short out the audio output IC, which would have sent up some smoke. When the set is turned on, the computer senses that the audio output IC is shorted and shuts the set down. The audio output IC should be replaced and all other circuits checked by a qualified tech familiar with the 179 chassis.

Aug 21, 2007 | RCA G35831AT 35" TV

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