Toshiba 32" TV acting up

[John Hudak]

Hi:
I have a Toshiba 32AF42 that is working strangely. Occassionaly, any
station on the highband channels (6-11) look like they are getting
corrupted by electrical noise (enough so the picture is almost blurred
out) or, sometime the picture looks like the tuner cant quite lock on to
the signal (actually the picture reminds me of how older TVs displays
looked when the AGC was greatly overdriven. In the 'cant lock on to
signal mode,' there is a noticeable hum bar that moves up the screen at
about 8-10 Hz. There is nothing in the house that is producing
electrical noise or a RF interference. Any clues as to what may be dying
in the set?
Also, is there a way to reset the processor on the board? Perhaps this
might help. Other suggestions appreciated.
Thanks
John

 

[James Sweet]

Hi:
I have a Toshiba 32AF42 that is working strangely. Occassionaly, any
station on the highband channels (6-11) look like they are getting
corrupted by electrical noise (enough so the picture is almost blurred
out) or, sometime the picture looks like the tuner cant quite lock on to
the signal (actually the picture reminds me of how older TVs displays
looked when the AGC was greatly overdriven. In the 'cant lock on to
signal mode,' there is a noticeable hum bar that moves up the screen at
about 8-10 Hz. There is nothing in the house that is producing
electrical noise or a RF interference. Any clues as to what may be dying
in the set?
Also, is there a way to reset the processor on the board? Perhaps this
might help. Other suggestions appreciated.
Thanks
John

If I had to guess, I'd say cracked solder joints in the tuner,
especially if the problem comes and goes randomly.