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Rear Projection RCA Snapping & Shutting down

1995 46'' RCA Trimline Rear Projection TV ... For what it is this TV has always worked fine. However, recently we have experienced the following issues:

1: Colors started to blink & occassionally turn to Black & White.
2: We can hear a snapping sound when this occurs.
3: Snapping sound has been occuring much more frequently.
4: Colors flicker, snapping sound occurs, TV shuts off for a few seconds ... & then turns back on.

Thanks ... Kha

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I am guessing it to be an intermittent condition of somekind.

Just tap the set with your hand; on the back, sides, top, etc. to see if you can restore the picture. If so, then I am right. Unfortunately, these kinds of problems are very hard to find. If you can find a reliable place to tap or strike the unit, do that and than don;t touch it!

Sometimes if you can put some torque or twist on the chassis it will keep the loose connection inside working. You can do this by placing a small object under one of the corners or something creative like that.

If this technique does not help, you will have to repair it. The cost may be more than the price of a new set.

Posted on Jan 07, 2009

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RGB as Ginko put it is your Red/Green/Blue or color generating board going into failsafe (black and white mode. As this has to do with picture quality, you are best to take it to a shop as they would have the equip to service but be ready, they could give a repair as expensive as a new set.

Posted on Jan 07, 2009

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I would give it a good "pressure air" cleaning .. like from am air compressor .. Its gotta be dirty inside .. take the back off

Posted on Jan 07, 2009

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Yu have a bad circuit board that needs replaced.if the tv is more than 19 years old id look for another tv

Posted on Jan 07, 2009

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Dear sir,
Let me make you clear that it doesn't sounds like its a do-it-yourself job.I guess there is a multiple component failure in the circuitry of your TV. Some capacitors have surely worn out. I would strongly recommend that you take help of a qualified technician as handling television circuitry without good knowledge is very dangerous and can be fatal. Till the technician advices you do not switch it On to avoid more damage.
Please rate me appropriately if you are satisfied with my answer,in case, if you want any clarification please get back to me.


Posted on Dec 21, 2008

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Let me know model number of TV please.

As its bit old TV so more chances are that it has few capacitors weak in deflection and power supply section.

Few dry solder joints in power supply and deflection boards are also possible cause of above symptoms.

Posted on Dec 21, 2008

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Color turns to blackj and white because there is an internal fault, probably a faulty IC or a los contact on the rgb board.

When this happens the tv goes on protection because it detects the fault, that is the click that you hear.

Posted on Dec 21, 2008

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