Question about RCA 32V420T 32" TV

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Got an rca 32v434t, plugged in hooked up, and it

Got an rca 32v434t, plugged in hooked up, and it turns on for about 10 seconds and then shuts off by itself. does anybody know whats up? please help!!

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  • 35 Answers

We would need more information:

has TV worked before
how many hours has TV been used

I have seen this 'ShutDown' on many failing monitors..


Typicaly the Power Supply circuit in your TV
have 'Over Current' detection\protection
and your 10 second is just about how long somthing is probly taking to either:

over current and shut down
or more specifically:

one or both things wrong with it:

bad electrolytic capacitors ( maybe )
but if it's a perfect picture for all 10 seconds then probobly some specific semiconductor or module is: 'Heating Up' then 'OverTemperature' and failing in a manner that causes an immediate overcurrent condition, shutting off the TV.


- give more information

- if capable of safely removing the back of the TV to allow for inspection...
,
WITHOUT GETTING ELECTROCUTED
by the high voltage that remains stored inside the tube, even after power has been removed !
,
then pop her open and have a look at
the PCB's ( circuit boards )

if somthing has been running hot and has led to this type of failure; then your circuit board will be discolored near the mounting of that device... You may even notice a burnt pcb smell at that area.

anyhow

somtimes you can find these semiconductors or modules in catalogs or online ( OfCourse )

and yourself or sombody with sufficient knowledge of soldering and the
' Potentially Life Threatening Hazzardes '
that exist around CRT monitor repair....

... can go ahead ad replace the suspect part.


Ed

Posted on Jun 16, 2009

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