On Feb 3, 12:11*pm, wrote:
I am trying repaire my LCD TV Westinghouse LTV-32W3. I purchased it 1
1/2 year ago - it worked OK for about 1 year. After warranty expired
it works OK for about hour, after 1 hour the following symptoms
appeared:http://www.evkosystems.kgbinternet.c...Bad-TV-2-1.wmv
The TV on the left is a good one, on the right Westinghouse LTV-32W3

I come to conclusion that some parts in the TV are getting too hot. To
test my theory I removed TV's *back cover to allow better air
circulation - now TV is working without problem. What I want to do is
to install small fan to make a better cooling.
I am not a TV technician, so here are my questions:

electronics parts that are getting hot are enclosed in a metal case:
*http://www.evkosystems.kgbinternet.c...v/IMG_0014.JPG
here electonic parts with metal case removed: *http://www.evkosystems.kgbinternet.c...v/IMG_0017.JPG
I guess the metal case is to prevent electromagnetic transmition - can
I make more holes in a metal case without causing electromagnetic
interferrence?

I plan to put inside a small fan, similar to one used in computers -
can you recommend one?
Can you recommend simply converter from 110 AC to 5V(?) DC to power
this fan?

Thanks,

Zalek

The case is probably for reducing elelctromagnetic interference and
for physical protection of the parts.

As other posters have said, a fan will probably only prolong the time
until the TV fails again. I think a little alternate heat, from a
hair dryer, and a can of circuit coolant spray might help you to find
the area of the problem.

If it was me, I would just run the set with the case open and wait and
see, as long as there is no one who could get hurt by running the set
with the covers off.