Electronics Forum / Repair / April 2008

Does anyone have component level repair experience on laptops?
I've got a Dell Inspiron 8500 notebook computer with a charging problem-
The computer will run fine from the batteries until they are dead.
When plugged into the AC adapter, the BIOS gives an error message stating

I have lost the remote.  I need to auto program my tv. Is there a code
or series of butttons that can be pressed to allow me to auto program
my tv.
panasonic PV-C2023

I have aquired a Sony TA-AX295 integrated amplifier (circa 1990 I
think) as part of a system.
The amplifier distorts badly even at fairly low volumes on all input
channels.

I've got a fully functional projector, except there is a splotch of dead
pixels on the blue panel--shows as an irregular area about 6" in
diameter on a 92" diagonal screen.  Everything else on this projector
works like a charm: power zoom and focus, all inputs, the

or equivalent.  I only need one but would like to have some spares.
I have looked all over.  I would even take a datasheet.
Oh, please email if you have one/any as I don't check here often.
Thanks for any help.

I have an MTX Thunder 6500D which had blown power supply & output
stage fets.  I've got everything replaced except for the two SM
resistors that connect to the gates on the power supply fets (R628 &
R629).  From what I can tell, the unit uses a TL494C to control the

I have a Phillips DVP 3005/05 DVD player and all of a sudden it is
extremely tempremental when playing any DVDs. I've taken off the outer
case to see if there was anything obvious but I can't see anything to
the naked eye.

Since the late 80s, these have become standard as the heart of home
stereo/video systems where only separate components would do.
Current models have every type of input/output on them, from
RCA(composite) to ports labeled "digital", along with S-Video &

Will VErizon FIOS, on glass cable instead of co-zx, be broadcast on
the same frequencies as cable TV?
That is, will TV's and DVD recorders be able to use the same methods,
settings etc. to tune in FIOS tv as they use for cable tv.

Have a Dell Inspiron 1150 notebook. some issue with the power adaptor.
It is beeping and and the Green led is flashing. I know how to test
everything inside the adaptor however problem is getting it apart.
Can't see any screws, and don't seem to be any clips on the sides.

I read online on the page advertising one RF modulator for sale that
it would damage fidelity.   Is this just as true for all RF
modulators?  And is it substantial?
I want to buy a DVD recorder and use the modulator to play through TVs

Value of 1W, R67 near the footswitch socket, measures about 1200 ohm but
overheated colour bands look like 11 ohm ?
The polished stainless steel control panel has the legends only silk screen
printed on. No more durable than the white markings on valves/tubes. On/Off

Have schematic and User manual:
The red standby LED is on. When trying to put set on, the led blinks a couple of
times, then accoumpanied  with a click the led come back to it's standby state.
For a brief 5 seconds or so the HV static is present on the tube face. No video

Okay, so I've tried everything possible to get a microwave that was
picked up off the street to work.  It's a Kenmore 565.8925590, 1300W,
serial 1V7C01490, manufactured September 1991.  The magnetron and
controller IC are made by Sanyo, so I imagine that the entire oven

I have an old computer with Windows ME and Internet Explorer and I use
Google Groups to view this group.  Can someone give me easy directions
on how to filter out some of the junk we are getting.  I know there is
a way to filter, but don't know how to implement the filtering.