Electronics Forum / Repair / May 2004

Hi....
          Needed DC-micrometer philips model PM2436- Anyone have them?
          Tanks in advance
          regards

When a Tek 7104 mainframe has no modules plugged in, should it be
possible to see a visible trace?

how are these made? Can I take the AM loop antenna, hook it up to the speaker
terminals on my power amplifier, and just take a cassette walkman, make sure
there's no tape in it and that the batteries are fresh, and push play and put
the tape player next the am antenna and turn up ...

Hi. My Metz 45 CT-4 camera flash no longer works after a long storage.
I suspect that the capacitor has deteriorated because I can hear it
charged up, red neon light came on, and then the neon light went off
immediately.

I have a 13" RCA CTC117A TV. Horizontal output was shorted and blew
fuse. Replaced HOT and tried to test with 100 watt light bulb in place
of fuse. I have no regulated B+. Any suggestions on what else to check
will be appreciated. Thanks.

HAS ANYBODY EVER TAKEN THE BACK OF A T.V. OR COMPUTER MONITOR AND PUT A
SCREWDRIVER TO THE HORIZONTAL TERMINALS ON THE PICTURE TUBE AND SHORT OUT
THE H.O.T. ON PURPOSE JUST TO WATCH SOMETHING GO UP IN SMOKE???

I have a Panasonic CTP2780S chassis AEDP218 that has begun to overscan
a little and the overscan varies with picture brightness, that is the
overscan is greater with a brighter scene. Lower corners overscan
slightly more than center. Noticeable on text scrolls mainly. Have not

I need help in fixing this EMERSON VT1922A, VCR/TV combo. When plugged in, HV
comes on but no video or sound. When a tape is inserted, sound comes on but not
the picture. I've resoldered all connections around the tuner and FBT but same
simptoms.  Any suggestions as to where the ...

I have a slightly broken TV and am hoping to get a little advice on
repairing it.  It's an older NEC television, around 27".  When it is
turned on, the channel display lights up, but there is no picture and
no sound.  When I change the channel it does change on the display,

Hello..I have an old RCA Rca t25001gy  television.I've lost the
manual.
Somehow or other  I got the "tamper proof" mode locked.. I can't
unlock it...

Well, thanks to this newsgroup and all of the great people here, I
have a sucess story without having to post a question.  
An RCA model F31223GG chassis CTC169AS was given to me broken.  Report
was that it was working, then power went out (to the house), the TV was

I posted a while back that I needed a 100K 25V electrolytic cap for an
Astron RS-50A Power Supply. I couldn't find one from the usual suppliers
that would fit into the power supply case.
I contacted Allied Electronics and the sales person got in touch with

I have a monitor that has horizonal line in the top one-fifth of the
monitor. If I select the over scan button on the monitor the lines will
disappear. Very few adjustments on the circuit cards. Anyone have any idea?
Thanks,

I work on many RCA PTVs in my shop.  I have often wondered what is the
technical difference between the Delta 40, 41, and 42 lenses used in
many of the PTK195 chassis (52" & 60")  Why, for example, in a recent
60" TV, were Delta 42s used over the blue and green CRTs and a Delta

I think my 5 year old KX-TC1710CB cordless phone is finally going
wonky.  It's coming up with OUT OF RANGE errors when I press the TALK
button on the handset.  The base station seems to still work.
Does anyone know what I may try to see if I can get it back to work