Electronics Forum / Repair / February 2006

i have recently purchased some li-ion batteries and connected them in
parallel and series to get a rating of approx22V and 4400mAH . i am not
understanding how to charge them ,,i have a dc adapter of rating 24v
and 1.25A ,can  charging from this adapter be a solution to this

I don't know it anyone can help on this, but...
I have an old Technics ST-CH505 hi-fi system that is still servicable.
It only has a single AUX input, so I've got as DAB radio plugged in. I
also want to plug my digital media player in too.The connections

I am currently repairing a hitachi 55fx48B tv. I replaced the 2watt 330ohm
resistor from the B+ It has changed it's value to 381ohms everything seems
to be fine with the high output. It seems like it will try to start then
shuts off. You have to unplug it for a few secs to get it ...

I have two Timex watches whose alarms have quit working after I changed the
battery. Both are plain, cheap digital units, both with the "Expedition"
name. One is only about 3 years old (an "iControl" model), the other perhaps
8-10 years old. The watches seem to function fine ...

I know this is kind of OT but I have tried all the arcade game
newsgroups and nada.
If any one can help me or point me in the right direction I'd really
appreciate it.

Bought in 1999 it is a microwave/oven unit.
I have checked the following parts & they have readings on my ohm
meter.
Door switch sensors, upper & lower. There are two separate sensors for

I'm trying to locate a particular remote control manufacturing compan
called:
Maxwell Products Inc.
Does anyone know their web address or any other name they may trad

My Toshiba projection recently failed.  Front LED light would blink o
and off continously.  TV would not power off.  I had to pull the cor
from the socket.
However, after TV sits unplugged for a few hours, the TV would tur

I put my videotape in the VCR and as I tried to take it out, it would
not eject my tape.  Eventually, I managed to get it out and the VCR had
"cut" my tape in half.  The tape contains some important programmes, so
I really need the tape.  Can I repair it myself or do I need someone ...

about 1 month ago I've notice few very little black spots on my L
L1710B monitor. Within couple of days it spread like a disease, an
it still look like a fat horizontal line, spreading from one side t
the other. This monitor is about 3 years old, so there is no mor

Anyone in the UK got one of these - I'll happily pay a reasonable charge for
it (or even a slightly unreasonable one).
It *must* be carbon composition or carbon ceramic, as it is being used in a
circuit with high pulse currents which would destroy a film resistor.

Before someone brings this 80 lbs weight  .84x.22x.64 metre piece of kit
half way across the country for me to repair. Does anyone know whether it is
a straightforward job, and how,  for the owner to remove the large and heavy
glass top for him to leave at home ?

I unplugged my ipod while it was in "Disk Mode" and the screen said "Do
Not Disconnect". Now I can't get my PC to recognize it. I may have
damaged the hard drive. I ran a hard drive test and it failed. It is
hard for me to believe that what I did could have damaged the ipod

We have an Ewave (Daewoo/Magic Chef) KOT-152UW microwave oven purchased
at Home Depot. The touchpad is getting flakey and I have been trying to
locate a parts vendor without much success.
I'd appreciate any recommendations. Thank you.

Is anyone familiar with these older Diamond Pro monitors from
Mitsubishi? This one had about nine years of excellent use until I
powered it on one day. There was a little "pop" and a small dot of
intense white light appeared at the center of the display. The light