Electronics Forum / Repair / March 2005

 I bought a used 756 Pro in  mint shape, recently it has
developed a problem that i have already seen in 2 other
friends ICOMS 756 which they sent out under warranty to
have repaired. from what i understand its a bad solder joint

there is sound & picture,what could be the problem? horizontal lines on
screen?

Want to know the value of resistor fuse rf3929 on acer monitor. Mod. no. is
7279g .The fcc id no is jvp7279g. Thanks Ken W.   ken-wright@verizon.net

We have a six-year old Toshiba 35" television that has recently begun having
problems with the bowing (or bending in) of the picture about 2 to 3" on
each side.   At first it was just when you turned it on and it would grow
out to normal after about three minutes.  Now, it is ...

Any suggestions appreciated: NEC VCR 6 head Hi Fi: VH-602.  The model number
probably only applies to the Oceania region.  We do not have FCC numbers!
The sound is ok, the picture is b/w and very snowy (as if it needs a head
clean) and also exhibits tracking faults.  I've tried to ...

What is the best way to desolder?
I have tried solder wicks, single bulb solder suckers, pen-like solder
suckers, solder suckers with integrated soldering irons, and I've
tried heating the item and shaking off the solder.  

For about 6 months the monitor suffered from vert collapse which could
be cured with a swift smack on the case, then it gave up, just a single
horizontal line. I took the cover off & found that tapping the LA7838
heatsink would cause the bottom 1" of the picture to 'hang' from the

This one just one quit. About a year ago, the set was dead. I replaced the
STK730-020 and the line fuse and everything worked fine for several months.
Then, it fails with just a blown line fuse. Couldn't find any power supply
shorts, so I put in a new fuse and it works for ...

I'm repairing a microwave/convetion oven that was dropped.
Sears#363.63673201
Turns out the display pack cracked and consequently, no display
(oven appears to work otherwise)

I've been working on a few ATT 705s at work (they are monochrome
terminals that emulate a few different types of terminals, but they are
so ancient, I can only guess that those would be Wyse and VT100 and the
like). The major problem with them, aside from the screen burn, is one

need em for an onkyo amp

I need the circuit board that holds the volume control and display on
an RX-DP10VBK and an RX-884VBK (ruined in shipping now from bad
packing).
Who sells it aftermarket? JVC and PartStore don't list it online.

I have a Philips Magnavox TV that's on the outs.
Model #: 25TS54 C122
Chassis: 25B800-7652
It turns on for a few seconds, no picture, the screen starts t

Wondering if anyone can help.
I've got a faulty 2" LCD TFT screen on a Konica digital camera. I've
taken the screen out and it is a Casio part. I've spoken to Casio and
they won't sell the part unless I reference the Casio product it would