Electronics Forum / Repair / July 2004

I have an RCA G27140TN TV that I need a tuner for. or at least the part #
/manufacturer for that particular item from a service manual. Just in case I
am not talking the proper terms I am referring to the metal rectangle that
has the coax cable female threaded end on it where your ...

Hey Gang,
I've got a HK 330B here,with blown outputs (all 4 were 2SC1107's)
which I've reaplaced with ECG/NTE152 for now.(the 2SC1107 crosses to
ECG/NTE186,but the 186 seems a little underspec'd to me?). Any

Hey Gang,
I've got a HK 330B here,with blown outputs (all 4 were 2SC1107's)
which I've reaplaced with ECG/NTE152 for now.(the 2SC1107 crosses to
ECG/NTE186,but the 186 seems a little underspec'd to me?). Any

I have a RCA model 32V550T television.  Recently I turned on the TV and I
got no picture in a high pitched buzzing sound.  Now I cannot turn the TV
off as the buzzing continues.  If I unplug and plug in the TV the buzzing
continues.

I'm trying to set up an inexpensive fiber-optic evanescent wave
fluorescence system, does anything know much about that?  In particular,
the lasers are quite large/expensive, be it 488nm Argon-ion or some sort
of HeNe.  Why do people not use cheaper laser diodes, such as the ones ...

Dear experts,
I've been having some very strange symptoms lately.
When I play certain videos, the sound will work
normally.  But the picture will freeze in one place.

Press power on clicks on and off three or four times and dies. What can I do?

I posted this before but i need some more specific advice.
What do i need to do to make a vcr from the netherlands work in
south africa?
The picture is fine, there´s no sound but only a hiss.

My cell phone went through the wash, I'm pretty sure I got all the water out
of it.  It works again, except that the other person can hardly hear me.  
Just wondering what damage water can do to screw up the microphone, and
perhaps if there's any way to boost the gain of the ...

Does the old (circa 1986) Sony KV-20XBR have a service menu or service
mode?  I just received the TV back from the repair shop this week after
a flyback, and some other ancillary parts (HOT), replacement.  All is
basically fine with the set, except the convergence appears to be a ...

Anyone repair Thurlby Thandar PSUs in the UK?
Regards
Andy

I have a panasonic PT-L592U Video Projector with a dead power supply both q9201 and q9202 (2sk1938)
were burn't I replaced both and now it won't power on anybody have any ideas on what to check next?
Thanks in advance

I'm thinking of using an old cordless screwdriver in an automatic
curtain opener. Anyone been inside one who can tell me how accessible
the electronics is please? I'd need to be able to operate it forward,
backward and off.

Name this old TV show :
"Do not adjust your TV set , we control the vertical , we control the
horizontal "

We have a Panasonic TV, 27 inch, a couple of years old.  Worked fine until
today and now the color is acting up.  Around the outside of the picture are
red and green bands; the color in the center of the picture is greyish.  The
set is too big for me to easily transport it into a ...