Electronics Forum / Repair / July 2004

my need an equivalence (compatible substitute) of  IC (3PIN) TO220
(ISOWATT) K2545
Thanks to all those that will help me
PS Sorry for my English

I got this set in with a shorted HOT. Power supply was singing.  I
resoldered everything that looked suspicious and replaced the
transistor. The set came on and looked great for about a minute. Then
the new HOT shorted again. I felt the heat sink and it seemed quite

Hi, I recently got this Dell 14" monitor from my cousin who was
throwing it away. He told me that when it got warm after 15 mins image
will get very bright, almost white and image will be blurry. I tought
it could be an easy fix, so I kept it. In fact, when it got warm,

Thanks!
Alex

I've got some instructions that tell me to connect 470 ohm pull up
resistor to pin number 43 of chip.
Is that OK? (I've heard that pull up resistors are usually 10Kohms or
47 Kohms)

I just came across a Pioneer CLD-3080 LD player with some very nice
features, and I purchased it.  However, it has a problem and I'm
hoping someone here has experience fixing it.
The unit powers up.  The display lights, but both side A and B

I'm searching for some servicing info for this unit. Does anyone have a
schematic?
Many thanks
Bob

Hi, there!
I have come across something really strange...
I got a Pioneer compact stereo system (model XR-P460R) with a defective
CD player. After opening the player, I was more than surprised to see the

I have a Marantz 2252 which sounds a bit dull in the right channel. The
volume appears to be the same. Any help would be greatly appreciated.
Also, there are two components I'm having trouble identifying. They each
have two leads and are on the top part of the main amp board. They ...

Anyone have a schematic for a Yamaha CR620 receiver. I need to know what
type transistor belongs at location Q809 relay driver.
Thanks

I was given a JVC GR-AX96U video camera. It is totally dead, and won't
do a thing either with battery or AC adapter power.  Apparently, the
original owner was using it in a very high heat industrial environment
when it expired. I am thinking it might be a voltage regulator, but

Symptom:  cylinder starts spinup, buzzes/hums/vibrates, then stops, followed
by eject prompt on LCD display.
I have no service lit. for this model.
If you have a specific part/tip, that would be grand.  If not, is the

Greetings All,
I have a two channel Vu-Data corp Model Ps950 Oscilloscope.  I'm
trying to measure a signal relative to a point in a circuit not at
ground potential, but I don't know how?  

I'm reposting this question again in the hopes that perhaps someone
has come across one of these remotes sitting on a shelf that perhaps
they might want to part with.
GE (Panasonic ) VCR model 1VCR4002X old top loader wired remote

Powers up great picture but once warms up it goes black and white and then
straight line and then shuts down please help. thanks  Model-kv20exr20