Electronics Forum / Repair / April 2006

I know this is off-topic but you folks are very clever and may have a
solution.
My swimming pool sand filter is 30 years old.  Parts no longer available.
The valve has begun to leak from a "spider" gasket - basically an 8 inch "O"

I am looking for a small LCD TV (12v/120v) to have available for
emergencies.
Are there any that the group would recommend?
Thanks for any suggestions.

Got a call for M # 50UX57B  Chassis # AP 83R. Dead, plug unit in,
little pop in
speakers, then red led flashes once. Anything common?

Howdy all.....This Delco AM/FM radio came out of a piece of heavy
equipment with 2002 vintage and I can't seem to find any reference to
either it exactly or anything with a similar plug setup on the rear
panel.  It 4 connectors occupying the right side (viewed from the rear)

Hi, I am seeking information regarding a suitable 15v battery for a Model 50
Selectest multimeter.
Thanks Geoff.

I have a call to do on a Samsung HCM 4215W Projection T.V. It runs fine
for
five hours, then shuts down, & flashes the power led nine times, then
will only

I hope someone can help me.. I have a sencore cr7000 crt restorer  but i
done have a new setup book yet (ordered one today) and i have 2 crt's in
need of restoring
A90AEJ16X10

  I've got a Viewsonic G73fm here that's absolutely dead - no response to
power button, power LED is off, no sign of current draw (usually you get a
little 'crack' if you plug a powered IEC into the back).
  Does anyone have a service manual or schematic for this beast? Even a ...

I think this is the same monitor as Nokia 447s, if somebody knows that
one better.
After many hours of usage when the monitor warms up enough, the picture
starts 'bounching around' and soon gets black. Can anybody give me a

I have a problem with MSI 6368 mATX mbo...
I think it is related to power, cos it powers immediatelly by herself
when I plug the power connector.. and after 5 seconds she shutdowns...
than I try to start again and it faily after 5 seconds again...

I roughly drew up the circuit.
I reckon what had happened was that the variable resistance in the base of
the regulator transistor had gone open. This resulted in no regulation -
rise in voltage which triggered the crowbar cuitcuit and blew the fuse.

Panasonic --- model PT-51HX41E -- AP-820 chassis -- rear projection tv ..
ok it has a small issue when its cold .. when you start it up it has
squiggly horizontal
transparent lines on the screen .. . but once it warms up it is fine ... id

Howdy All
I'm trying to determine if this is something I'm able in attempting to
repair, prior to taking the unit in.
I loaded a cracked (unknown to me) Netflix DVD into my Panasonic

This monitor has a faint greenish-blue band on the left side from the
edge to about 2" out, running from top to bottom.  There are no sources
of magnetism and I have relocated it to same effect.  I have run "Color
Return," no luck.  Any ideas?

I was checking for data on an FT5154 transistor of 1976 kit.
An old German transistor data manual showed it equivalent to 2N5154.
A straight block of 50 or so others listed in that manual from FT1724 to
FT5154 showed the same 2N equivalence.