Electronics Forum / Repair / November 2004

I have removed the radio from my 1995 Olds Cutlass to work on the CD player
and have the complete pinout. I tried just connecting 12v and ground and it
would not power up. What other pins to I need to supply power to? Security
has not been set on this radio. Since the problem is ...

hello, I have an old fisher stereo receiver that im having a small
promblem with.I dont know that much about electronics and was hoping
someone could give a little friendly advise. sometimes when powered up it
has output and sometimes it dont.  ive checked speaker connections etc,

I'm attempting to repair the above model camera.
The initial problem with the camera was that it wouldn't zoom using the
camera control.  After spending time on the camera, I have come to the
conclusion that fault is not confined to the zoom switch.

   I'm looking for a schematic for the above named monitor. My vertical
has compressed down to a thin line across the center of the screen.
Replacing the electrolytic capacitors has not helped.
   Searches of the web have been fruitless. One monitor schematic for

I have a 25" Magnavox TV for 5 or 6 years now and recently when I turn
on the TV the picture is scrambled with color lines but the audio is
good. The picture clears itself up after 5 or 6 minutes. Is it worth
repairing if so, does anyone have any idea about the cost of repair? I

Bought it on a flea-market in Moscow, yesterday.
The Plutonium seems to be ok, but the electronics seem to be corroded
after 30 or 40 years of storage.
How to repair them?

After reading many postings on the subject on tuner problems and IF
block issues (including those on repairfaq.org),  I'm still having
problems with this TV.
Here's the issues:

my granny uses an old philips tv which on switching on, instead of the
picture appearing the speakers will crackle violently, the channel LED
will go bezerk and then a split second later the LED will extinguish
and it will all go silent.this process repeats 6 or 7 times before tv

    How do you flatten a warped plastic dial scale?

I am working on a circuit board out of a mig welder. The problem is a
resister burnt and I can't read the some of the color bands. This
circuit board controls wire speed, arc stabilizer, etc. There is also
high voltage on this board . How would be the best way to determine the

Please help guys !!
Ok the other day my Tv went into standby mode.
I searched all the web and newsgroups to find a solution but had no
luck.

Hot this TV which refuses to startup....
If i take the cable for Horizontal deflection off, the LED comes on, but any
button at front gives flashing LED
The 163 volt is down to 95

I bought the Samsung 770 TFT LCD monitor four years ago. They have a
three-year warranty, so of course the monitor had to have its first (and
serious) problem ever last week.
On the right side of the screen, a vertical strip of pixels 1.5" wide has

Hi again from Montreal to all fellow techs !!
This is my third posting about this problem. (last one was 6 months
ago).
Most monitors will power on normally with only 110VAC.

I was troubleshooting my sister's donated old Viking window AC which
she said wouldn't cool a couple summers ago. Found the defrost
interruptor contact was open with traces of smoke on the case. I
jumpered it and noticed the compressor seemed to be binding at every