Question about RCA HD56W58 56" TV
The problem based on the model number is in or around the red picture tube---the bright red screen causes the set to draw too much current and the shutdown circuit detects this and turns set off--self protection.
Each picture tube (3) has a IC chip on the board connected to it--shorted chip or bad picture tube.
Shop repair in most cases.
Posted on Dec 03, 2012
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Posted on Jan 02, 2017
This sounds like a heat related problem, which could be a faulty chip or a cold (bad) solder joint on one of the PCBs (printed circuit boards). Due to the lethal voltages present inside a CRT type television, it is strongly advised to have this repaired by a qualified technician. however, if you or someone you know is technically inclined, you can try to fix this yourself. Cold solder joints can often be spotted by visible cracks in the solder joints. a through inspection of all the boards could easily identify the problem which can be resolved with a quick tap with a soldering iron and perhaps a little extra solder added to the joint. if that yields nothing, another method is heat/cold stressing the boards while the TV is running. With the TV on, spray small areas of the PCBs with cold spray (or a can of compressed air duster turned upside down) until the tv shuts off. then heat the last sprayed part with a hot air gun (or a hair dryer) until you can get the problem to repeat regularly. inspect the area causing the problem and you will probably find the culprit.
Posted on May 26, 2009
SOURCE: rca truflat 13
Ur video board that connected to the CRT(tv tube)long neck.It needed resolders the board it have cold solders.U know how to solders, resolders the ssockets pins that the CRT video board connected to.
Posted on Nov 10, 2009
It looks like a power supply SMPS problem.
You have to replace the optical isolator in the SMPS feed back circuit. It is a 4 pin IC
Mostly this may be the problem. Take the help of the service personnel.
Posted on Sep 24, 2010
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