Thanks for the great information! From a Google search I found the information in this thread I needed to repair my Sony KV-20TS30 TV which suddenly developed color gradients in an oval pattern. My problem was just as described here: the THP601 thermistor (black
1/2x5/8 > Sony tv color reversal: SUCCESS!!!! This MADE my week! I'm a hero in the extended family! Wednesday
> night I finally brought home my soldering equipment (not too much
call
for soldering DB25s in these days of the 100MBit office anyway!),
> pulled the back cover, turned the whole set upside down and confirmed
> all the hints from you guys:
> The degauss wires were indeed covered with black tape. The circuit
> traces went from those wires directly to one of the black boxes which
> did indeed have 3 pins (I had to shine my bright light *through* the
> circuit board to see this clearly - might be a good hint for
beginners
in the future)...and LowAndBehold, one of the pins was NOT SOLDERED
> ANYMORE (guess how excited I was) It was not burned looking in the
> least, just no longer soldered and in fact I could gently wiggle it
> and feel that it was not solidly connected. I then KNEW you were
> right.
>
> I fired up my iron, used the hot iron itself to clean up the pin and
> hole and gave it a nice quick small flow of fresh solder. I kept
> wanting this to be more difficult... but I just closed the tv back
up,
plugged it in, turned it on and there to the shocked amazement of my
> family was a PERFECT COLOR PICTURE! Total Cost: a few good
> descriptions to this group and a speck of solder. You guys are
Great!
I'm going to re-visit the crippled stereo equip in my lower room now!
>
> Final Hindsight data: The component was marked "THP601" on the
> circuit board (I decided this must mean "Positive" acting
"THermistor"
or "Posister" as Sam mentioned and an electronics friend said meant
> just the opposite direction for the voltage or the temperature.)
>
> Terry