Electronics Forum / Repair / September 2006

I'm looking for a service manual for a NAD 7130.  Can anyone help?  Please
respond to the group.

Tried the usual probing with a non-conductive stick on the flyback and
other components and none seem to affect what is occurring.  This
happens with all 3 colors.  It'll go dark to the point there is barely
a visible picture then suddenly go to full brightness.  The image also

 I need to make a programmer for the PIC 12F269... I'm hoping to make one
for under $25...anysyggestions..
Thanks

Does anyone know where the cheapest place is to purchase reels of CAT
solid-core cable in the U.K?
Thanks
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Hello, All!
Is there any way to make a three phase concrete breaker work on 240V single
phase UK mains? here is a photo of the label attached to the machine.
Many thanks

Anybody out there know about this?  You place the film/paper on top of a
circuit board that has a short circuit and it will show you the hot spots.
I only saw it used a couple times, and that was quite a few years ago.
Thanks

Service manuals & wiring diagrams for automobiles, motorcycles and
Radio & TV apparatus on 40 CDs or single documents by E-mail. Detailed
catalogs on http://carsservice.tripod.com or write to ricky22x@yahoo.com

Just bought one of these, supposedly in near new condition but my immediate
impressions are lukewarm.
Of course, it's doing alot...PAL to NTSC...you name it.
But the playblack quality of even an NTSC tape is mediocre with a little too

I am attempting to troubleshoot an electronic ballast from an 18W floor
lamp. The ballast is the plug-in variety at the end of cord. So far,
I've wrested open the plastic case and removed the blown in-line axial
lead 2.5A / 125V fuse from the circuit board. I've replaced the fuse

My wife has an IBM ThinkPad T23 notebook computer. She's on her fourth
power supply because they keep breaking at the power plug. Since the
plugs are molded they cannot be repaired. I replaced the plug with a
Radio Shack 2.5mm by 5.5mm plug, but it is not a good connector. It ...

The TV was working fine until it stopped turning on.  I have ordered
and received the schematic diagrams and will begin troubleshooting this
weekend.  I was wondering if anyone had any repair tips or a similar
resolved problem with this model.  Any tips at all will be greatly

I have a portable 120 Volt generator intended for use by contractors, that
has a Ground Fault Circuit Interrupter (GFCI) duplex outlet.  It also has
an L5-30 twist-lock outlet that is not connected to the GFCI.
Using the twist-lock outlet for my load tests, the GFCI outlet will

I dropped my simple little Samsung 225 cell phone in water, and
since then several functions are not working well.  (For instance, if I
turn the phone off, the only way I can turn it back on is to take the
battery off and then reinsert the battery.)  However, the phone is

I got this Receiver STR-DE525 surround sound unit with an unusual problem
well that got me stomped
Came in indicating "protector" so I found 2 output transistors that were
shorted and 1 emitter resistor open

I have a 6 year old Mitsubishi WT-46807 HDTV ready projection tv.
There is no red to the picture.
2 years ago the convergence STK's were replaced due to bad factory
assembly in Mexico and improperly placed thermal grease.  I replaced