On Wed, 15 Dec 2004 04:27:24 GMT, davexnet02
wrote:

On Wed, 15 Dec 2004 04:16:15 GMT, Alan Harriman
wrote:

On Tue, 14 Dec 2004 18:47:23 GMT, davexnet02
wrote:

Hello,
I'm trying to diagnose a fault that just developed,
I get sound, and I can feel/here the static electricy
that's generated on the screen when it's turned on.
The screen remains black.

If the red LED flashes, the set may be in IK blanking. Try turning the
screen control up slightly. If the picture comes in, it *could*
indicate a weak CRT. However, we had a Sony KV27EX25 in the shop today
that had no raster. Turning up the screen restored the pix, which is
often associated with a weak picture tube. But the CRT on this set
checked good. Further checking showed a low screen (G2) voltage. We
found an open 1 meg resistor on the CRT board in series with the
screen control. Replacing the resistor restored an excellent picture.

Alan Harriman
Hi Alan, never seen a flashing LED on this set.
Was that implemented in the 1992 models?

I had suspicions about a weak CRT prior to this failure.
The grey scale was off (too blue) and it was satrting to wash out.

As I mentioned, the CRT filaments are not lit at all.

Ooops...read your first post too hastily...maybe they have voltage but
you can't see them as being lit. Have you looked at them in the dark?
It is possible to "roll your own" filament transformer, but you should
have a qualified TV repair person do it, as the filament voltage's
value may be critical to the life of the CRT.

Tom
I'll check the CRT board to see if anything shows up there.
Thanks,
DAve