Electronics Forum / Repair / April 2007

I tried to re-cap a tube receiver (amplifier + tuner), and now when I turn it
on it starts playing music for a few seconds after it warms up, then the music
fades out and and hum takes over.  I don't really know what I'm doing, and the
wiring inside looks like a mess of spaghetti ...

Howdy --
I went ploughing through Google Groups and couldn't find any references to
my printer, so....
Does anyone know how to un-clog the ink system in this machine?  It doesn't

I have a over 10-year old Grundig model CDC477 (5 cd changer) with a
dead transformer and i need to replace it. The problem is that I don't
know the exact mA and V ratings for it. I tried to contact Grundig and
AMC about it but they haven't answered.

We have several of these monitors, and they are all performing very well
except one.  It has started showing ghosting lines that go out to the right
of an object.  The object can be letters, a dialog box, etc, but the lines
all appear to the right only.  None of the standard ...

I got an Denon AV receiver in that immediately goes into shutdown. Plug
it in, no display. Hit the momentary power up switch,  relay clicks by
small power transformer, display goes through two different displays,
relay clicks again and display goes mute. It says nothing on the ...

I don't want to fry my security monitor, but I want to hook up a 12V
4.5A rechargeable battery to it.  Since the monitor on the back says
"12V 3amp", would the monitor fry or would it just take what it needs
and be ok with this amperage?

I need a service manuel  for Sony TV <dl KV35kv35,  source.
                                     Thank you
                                                    Vince

Only 2 hours left..£109 current price....I am selling my newly
callibrated B&K 2635 no reserve, Ebay uk
300103292550.
regards Alan

While having some electrical work done, my toaster oven blew out.
Looking inside, I found that the two parts that have burned up are the
line on the PCB that's marked as the "fuse" as well as the component
that sits between the two AC inputs in a spot labeled "ZNR".

Remote just died one day, didn't drop it or any physical damage. Tried
new batteries, I have voltage throughout the circuit board all the way
up to the infrared LED. The backlight LEDs and the DBS LED flash
shortly once while I connect B+. Most of the Test Points indicate

I just picked up a Sony PS-LX500 Turntable that doesn't work.  I believe
 it is part of an all-in-one home system as it has a 6 conductor flat
cable as well as the usual dual RCA plugs and AC connector.
The unit does not work. Power does come on and speed button does change

Hello- I changed the lamp on this LG TV model RU52SZ51D but I don't
know how to "reset" the lamp. Can someone please describe in some
detail what I need to do after lamp replacement ? Thanks.

I own a Fluke 6060A/AM (10 kHz to 520 MHz) synthesized signal
generator that appears to be a source of noise.  For example, if I set
it to 1 Mhz and tune an AM radio to this frequency, I hear a light
crashing noise and an occasional pop/click.  If I put a scope across