Electronics Forum / Repair / December 2004

anyone out there have a schematic for this signal generator they would
be willing to share?????

25" GE tv model:25GT500FE1,chassis:CTC177AA,year:Feb 94.When tv is
first plugged into ac outlet the tv turns on but no screen is visible
when brightness is increased on T4401=Flyback a black screen appears
with retrace lines and it has insufficient horizontal width (left &

I have a Sony KV-2790R that the green color is dominating the picture.
What causes this in a Sony?
And can this be adjusted internally. (The adjustments on the front
panel do not correct the problem)

Ive a throw away TV i salvaged, i knew it worked, and it does, i can
hook up dvd and game consoles but there is not cable plug in, its been
torn out.  Does anyone know whta that peice is called?  its the peice
that the cable line screws into in the back of the tv ... the tele is

Hello. A couple of months ago, I bought a Sony VCR. The model is SLV-N750.
The price was $80.
I have basic-cable tv. I do not have a cable box. So, I plug the cable wire
into the vcr, and then I connect the vcr to the tv. I live in Chicago, and my

Can someone tell me if the focus can be adjusted on the Zenith SY2568
TV?
The picture seems fine, but any text is out of focus.  I was wonderin
if there was a simple POT that can adjust this?

My remote no longer works well. The problem is the "Adjust dial"
(i..e, the inner rotational
control) will often act as if it's the shuttle ring. That is, rotation
of the inner control in order

I can't read it very well. It might be M BC 65IDS or 651DS. It has the
logo M and then a space then BC and on the next line 65xxS. The face
is finished in a shiny blue ink. It's a PNP from a Tanberg 3008-A
stereo preamp from the early - mid 80's. Sweden? I need something I

I have a Sanyo SuperBeta VCR-7250.
When I put a tape in, the tape completes its "expansion" around that tape
path, but never quite gets tights and the tape mechanism shuts down.
I understand that the 2 likely suspects are the idler wheel and the reel

we have a 32" sony in shop kv32fs16 plays good for about half hour and
shuts down. turn it back on and plays about 10-15 min. same thing shuts
down. set is fairly new have not worked on this model before any ideas? it
shows no warning before shutting down.  thanks jack @allen park ...

I have a Yamaha R-900 Receiver that has worked flawlessly up until
about a week ago.
About one out of four times that I switch it "on" the protective
circuit relay does not engage.

No biggie but I inherited this 19" monitor, which would be really nice on my
bench at work - a 14" doesn't make it trying to read schematics with these
old eyes.
Anyway, the horizontal width is occasionally unstable, and even more

What are the extra pixels on the border (sides) of the picture tubes on
color TVs for (alignment?). The Sony TVs don't have these (because of the
Trinitron one-gun tube?)
Thanks,

Our Panasonic CT-20G5B has been out of focus since it was new. I have
looked for an opening in the case for a diddle stick to enable me to
focus it, but I cannot find one. Anybody know if it has one, and if so,
where it is?

Does anyone know of any internal differences/improvments of the following
24" Sony TVs I am considering buying:
KV-24FV300 - discontinued, but seems to have a better remote.
KV24FS120 - New model