Electronics Forum / Repair / July 2008

I'm servicing a Dell Dimension 4600 which is shutting down after about 5
minutes. The next time the PC boots, it gives a warning that the previous
time it shut down was due to a thermal problem. That led me to notice
that the CPU fan wasn't turning. The part number of the fan is ...

Hi, I'm trying to get data from a GOODWILL PPT-3615 power supply.
I can send it commands okay, and it responds, but always with missing
or duplicate characters.
For instance if I ask for its identification info with *IDN? I get:

Hi NG,
I'm looking for some repair hints for the mentioned tv model.
The Display stay black after power on without sound displaying the last
selected channel number.

Several buttons are not functioning but I can not get this darn thing open to
attempt a repair. Anyone know how to open it? TIA

I am looking for a schematic or manuals for Norelco xray equipment.
the nameplate on the control box says "HX549010". the xray head
nameplate has "HX546012".

I've enjoyed for 8 years a nice, jumbo sized, handsome real wood box,
cubic shaped, on-a-lazy-susan-base, GE TV, model 25PP5859K (built in Nov.
1984). I bought it used in 2000. I don't have or want cable TV-- I only
watch free, broadcast type TV shows. [I've had this TV connected ...

OK, so here's the really strange problem dejour. :)
One day last week, my Internet access dropped out a couple times
(I have DSL).  That's not totally unusual.  But the next day, it
would only stay up for a couple minutes after booting and then was dead.

I have an ir controlled wife. It doesnt work

Any idea as to the value of this cap? The markings on it are:
53D603
A1328-1/K14
0043H550

Hi...
I've got two diodes that need replacing, which I think they are zeners. I
don't have a schematic.
One is marked C33PH and the other B8V2PH. Google search results turns up

http://fletchersite.com
Fletchersite is wirking on a brand new site> See preview at
http://fletchersite.com/example

15W filament lamp controlled by a tiny reed relay, on for a total of a
couple of hours a day. Been in use for 20 years or so. Decided to replace
the working 15 filament one with a 11W CFL but on first switch on, the
contacts ,presumably only 0.5A rating or so, held on at switch off.

i want solution of book by I.J. Nagrath and M. Gopal, Control Systems
Engineering, Third Edition, New age International Publishers, India.
can u plz provide that?

This is the first DLP set I've worked on, the bulb is bad and an original
lamp module is about $300. But I've found a source for just the bulb itself,
and I'm wondering if it's feasible to attempt replacing it. I'm told you're
only supposed to replace the entire module.

I have noticed more & more still on the air analog channels are skipping
, breaking up into squares or stopping compleatly leaving a black strip
with the words ``poor signal`` on it over & over during the program .
This is all station errors & problems .