Re: GE 9" under counter TV video in and out

Success, at last!!! This is just to put an end to this thread of messages.

I finally bought the schematic diagram for this set and began to search for
the problem. After the set was ON for a short while, the negative voltage
spike at the base of the HOT would disappear. Sometimes it wasn't there
even from the beginning. Accordingly, the HOT was not being shut OFF as
rapidly as it should be, and the temperature of the HOT would rise to the
point where it would shut down, and in some mysterious fashion cause the
system control chip to turn the set OFF. The feedback loops in this set
are numerous. At first I thought that the 100Mfd capacitor which
differentiates the square wave to develop the spike was deffective, but
replacing it did not solve the problem. I then resoldered the joints in
this area particularly around RP21 and LP02, and this cured the disappearing
spike and the turning OFF and ON.

So, James, you were right. It was a bad solder joint all along.

Thanks to all for your help.
Dan


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