Electronics Forum / Repair / February 2006

While using my computer I suddenly lost the green color on my
Panasonic SL90 monitor.  Can anyone suggest where to start checking,
or does anyone have a schematic for this monitor?
thanks

OK so I've only just started to put this together..
About a year ago my TV (28" Sony Trinitron) started to lose picture
completely every 5-20 seconds when displaying bright images, so I
thought right, it's quite old (1997 ish?) so maybe it's just on the way

Since I learn alot here, I thought I'd share my anectodal results here.
A few weeks ago I asked opinions about possible lithium battery failure
in my atomic watch. Having replaced it twice with NEW ones from Walmart
(labeled China), I thought it was reasonable to assume they'd be up ...

has anyone been using these motors?   We are getting tired of the high
failure rate of the channel master brand.  hoping something else might
be more reliable.   We are in an area where we use large antennas
(winegard 7084 for example).   Would prefer using the remote models

I need to connect my wife's mac laptop to our cable Internet.  I have a
pc at the modem.  Maybe I'm a bit paranoid, but a wireless router
concerns me, even with encryption.  So I'm looking at these, a Netgear
product (belkin, others also make them) that basically turns your house ...

I have a Yamaha amplifier that's about 5 years old.  The right channel
is normal, but the left channel has a low hum and significantly reduced
sound volume/quality.
I've tried the following:

This 2 year old oven failed last week.  ALL the appliances in my house
are dying - central vac, dryer, fridge, wall oven, microwave within 3
months.  Even my alarm clock is threatening to die.  The dryer, fridge
and oven are the same age, but the vac is much older, micro and ...

Hello all, I have a Mitsubishi CK35402 that has developed a no sound
situation. When I was given this set I had to do a PIP bypass to get
picture and then noticed that only one speaker was working normally
and the other had hardly any volume and was distorted. Now time has

Looking for the service manual for a Mitsubishi VS-5017S projection TV or if
sombody has it the board layout around the tuner section so I can repair
some burned traces.
Thanks,

This is a continuing saga of a 60 inch rear projection RCA TV.  It has
a chassis number of
PTK195AC and is model P60812BL.   I have now had a repair technician
over and it worked like a charm while he was here and for a couple of

i've had to get my relatively new AWA tv model W571 repaired now 3
times and it's still not working right. $200 out of pocket and 10 days
with no tv:(((((( F***!
problem is perfect sound but no picture just a blue screen with white

Anyone on this group have any experience with removing the sensing
array from scanners and using it as an optical sensor? I'm interested
in using some of the old scanners that seem to be all over the place as
optical devices for spectroscopy, etc. Problem is that I have no

I have a Microprocesser and it has a program built into it.  I forget
the numbers, it is at the shop.  But is there a machine that can test
these things along with the many other Z80 or 68000 or 8088 etc.  I
know there is the Fluke thing but that sounds like a lot work tracking

==WHOLESALE TO THE PUBLIC==3500+ ITEMS==YOU MUST SEE
OVER 3500 ITEMS INSTOCK AND ALL BELOW WHOLESALE COST
TOP BRAND NAME ITEMS
NEVER PAY RETAIL AGAIN

The traces on my 465B scope are bright but a bit out of focus...I have
heard of resistor problems in the focus control voltage divider in
other models that have caused this same problem. I checked the CRT
schematic and noticed the resistors in question are in a resistor