Electronics Forum / Repair / September 2006

I was using my external universal battery on my laptop (19v), but then
I decided to work on my other laptop which takes 16v and I forgot to
switch the external battery to low voltage.
I didn't notice anything until the battery in the laptop starting going

RCA 27" T.V. Model # J27435YX52 Chassis # CTC203AJ9 can only find a
couple of
common parts at Global Semi, & Tritronics. Looking for the smart plug,
for ethernet connection, & tuner. I'm repairing a couple for a local

i  bought this DV camcorder about 2 years ago and it worked without any
problems.
however, now i have several problems in playback function. simply don't
work. i press "play" and don't appears any image (completely black), in

When my SVHS VCR when nuts, I read your VCR guides and found the
problem,  As you said I opened the bottom and found the brass part and
put it back on.  But now a video recorded on this deck will playback
with tracking issues in the picture.  How do I readjust them (or the

Urgently need schematic or manual for Gould Scope type OS3000A. Willpay for
items any help appreciated
Thanks
Ray B

Model # PS-42D8C has no video on all inputs, but the screen is lit, as
I can see it in the dark. Sound is very low on T.V. cable input. It
does
switch through all the inputs, but no signal, & when searching for the

Need info from manual how to view all channels, to undo the 'skip'
function apparently, mistakenly programmed in
Appreciate forwarding such info, or entire manual.
Many tx

Which remote works these units, to set channels, unlock the front panel
buttons,
inputs menu etc? Our stock RCA remotes won't work the needed functions,
nor

I can't get rid of the on-screen AV channel indicator (top left of screen).
I've tried the button with the cross inside a square, but this only cycles
through the screen size options (widescreen, 4:3, etc). I've tried the
button with the right-pointing arrow into a square, but ...

Hello, i would like to purchase the "RCA" Field Service Guides " above
Volume 10
State Price and condition
thanks

I need some advice. My local authorized Toshiba repair store replaced
my Green projection tube because it was arcing. Now my color balance is
off, and the picture just doesn't look as good as it did before.  I
asked if it was because the new green tube was newer than the other two

Back from work yesterday, I found a laptop in a trash (Maxdata Pentium
IV, 45Gb HDD, DVD R/RW, 15" display). The RAM was missing, but this
laptop uses standard DDR memory. The laptop also comes with a power
adapter (20V DC / 6A)

I am working on a JVC NV-55BX6.  This unit has a weird symptom.  It
does not have a distinguishable picture.  It's like there's a blob on
the screen in the middle.  The audio is fine.  You can see some colour
around the blob but even the colour that you can see is not a very

Usually after watching the TV for a while, all of a sudden the TV will
give out a large audio whine, and then nothing out of the speakers but
noise, kind of like the cable has gone out. The noise is variable with
the volume control which leads me to believe it isn't the audio amp

I need a replacement power transformer for this unit. The numbers on the
transformer are 042-010078-000. Underneath this is ELY 0241. It also has
a sticker marked H.P. Two blue input wires, center tapped outputs, outer
two yellow, inner one white. Outputs measure 1.5 ohms to ...