Electronics Forum / Repair / July 2004

I have an elo Touchsystems "AccuTouch TouchMonitor" model
ETC140C-75WB in for repair.  This is a point-of-sale type
computer monitor with a built-in touch screen.  Says it is
assembled in USA, but has some german-looking writing, asian

Hi. Got a Sanyo DS27590 that goes dim after 1 second. Change channel,
perfect for 1 second. I don't have a print. Chassis is 27590-01. I ran into
this before on a 35" Sanyo. 5 volt reg was a little high, IC681. Well, this
one doesn't use same reg. All transistors check good, ...

red red gold gold gold (yes, three golds)
What is its value?
Thank you
Slang

this is a test

   Everythings works except the tuner - it suddenly broke a few days ago.
When I set the receiver to search for radio stations in its "automatic
tuning mode", its frequency counter just counts continuously through all FM
(and AM) stations and doesn't seem to find any RF signals at ...

Sony Projection TV KP-53S15.
Looks like siding comes up right away 2.5in. horizontal
lines stays all the time while TV is working.
Any ideas? Thanks. Mike,

My Sony SL-C7 wobbles horizontally about half an inch,
during playback. As if there was a ripple on horizontal
sync timing circuitry.
I can however not figure out how to proceed, to find the problem.

Wanted to thank David and Mr. Wizard for the prompt answer to my question
on my Sony 27 in. Power supply problem , wonder if the PS supply weakness is
still there, am thinking about replacing the TV that I had the PS trouble,
really do like the Sony picture and have had good luck ...

I need genuine Sony KSS 240A laser pickup. Will pay by Paypal or Visa.

I have an old JVC audio receiver that is starting to give me
troubles...
Whenever I turn it on, there is no audio coming from it.
As soon as I switch it to a different radio station, there is

Hi, I have an older Aiwa CX-Z600 stereo system (about year 1995).
The problem I had that unit will have a lighted up but blank LCD
panel. About 1 week later it died completely. I replaced STK-4121-II
and it came back again but the LCD panel is still blank, but has the

Not sure what happened to this printer. It prints all colors perfectly, but
nothing in black color - there is tons of ink in the cartridge (they are
transparent in this printer), I cleaned black printing head (put it in 99%
rubbing alcohol for 15 minutes) - looks nice and clean.

I was given a defective Pioneer PDR-555RW.
After replacing the main 1F cap on the digital processing PCB, it seems to work
fine when reading a CD.
But, when inserting a new, empty CD-R for audio, it fails most of the time and

I've got a Rauch PB44 power amp that uses the 'classic' J50/K135 paired
Mosfets.  One channel is perfect, but the other just gives me a loud mains
hum that does not change with the front volume pots, and doesn't have the
input signal present at all.

I picked up one of these sets at a good price secondhand, and it worked
perfectly. It did however have a cracked case back, so I ordered one and
fitted it.
When I came to use it I find that the band selection and direct input