Electronics Forum / Repair / August 2004

Hi. I've had this problem on two different models of Canon inkjet
printers. The print head is supposed to fully cycle back to engage the
paper feed function, but it doesn't, and the paper feed doesn't occur.
Any ideas? Thanks. Mark.

My model is tx-32pk20f. It is about 4 years old.
I can only use the remote if it is less than 2ft from the tv, it works
perfect. futher away than that and i have hold the button down for
8-10 secs before i get a response.

After 8 trouble free years my Aiwa HV-MX1 VCR has started having
intermittent problems with FF and REW. Sometimes it works fine other
times it will not FF or REW.
When it fails the take up spool (terminology?) will spin slower than

I have a Viewsonic monitor model G810.
I'm not getting any screen output at all.
Has anyone here any experience with these units and what goes out most
often on them?

    I've got a Superscope R1240 receiver here in which the black plastic
drum on the tuning capacitor has cracked and fallen apart.  The customer
would like the unit fixed.  Has anyone got a scrap unit in the basement
that they would be willing to sell a part off of?

To name a few:
CB Radio skids:
Cobra 138 SSB
Sears Roadtalker 40 SSB

I had a garage door opener stop working (Overhood Door model 1055)...opening
the box to inspect and hitting the switch occasionally causes a clicking
noise, which I think is coming from the "Motor Starting Capacitor" ...could
this be the problem?  It this like a selenoid or ...

Whats the best method/spray for cleaning (computer) plastic?
Its VERY important that only dirt gets off and that original plastic
is left intact.

Liquid silver is too expensive, is there any other way of repairing
traces on PCB?
Actually, I need to repair graphite traces on keyboard connector.
Using spray GRAPHITE 33 totally messed everything.

I have a Microsoft Natural Keyboard Elite that I disassembled, washed,
and reassembled.
Now it seems as if the keys are harder to press.  Is there a lubricant I
should have used on the keys?

yamaha dv-c6660 DVD changer
hoping someone out there can help ID a couple parts on the smps board.
the main FET, a TO220, has ST logo, and part # "P3NC...
the rest of the number is obsured by damage. Appears to be designated

I have a Sony KV28WS2U which keeps slipping into auto programme mode and
ignores all commands from remote.  The auto programme mode continuosly
repeats.  Any ideas please?
best,  Graham

My weller soldering station failed yesterday for the first time in
years. I am not getting any heat. I would get the heater is out but is
there a way to confirm what the problem is so I can try and track down
some parts.

On a regular basis I hear people mentioning a number they get off the
back of some electronic device that apparently identifies the actual
maker of that device. Usually this is spoken of as if it is something
that everyone knows about, but I'm gonna just plead ignorance and ask

I have a Sony Discman ( model number D-NE518CK).
Lately I hear a humming noise and I can also hear the buzz of the motor
spinning on the headphones. The hum can be observed when the Volume is
minimised and the the music is playing.