Electronics Forum / Repair / October 2006

My PC LCD display (Polyview V17E) has problems.  I suspect either
damage due to poor heat disipation or poor quality is to blame.  When I
give the screen power, the florecent light gives light for a second.
Then, the screen goes blank, but does not enter standby mode as it

Can i safely replace a 470uf 10V cap by a 470uf 25V cap without causing too
much draw on the circuit
or does the voltage make no difference in needed current?
Caps are almost the same size, 10V caps are not available.

Hi. Sony KV27FS320 tv. Push power button, standby led flashes 9 times.
Repeats. Yes, 9 times. Have searched and found no useful reference to this.
DA4 chassis. No obviously bad parts. Don't have print. Lady wants estimate
to decide whether or not to fix. Will order print if I ...

Model # F32672SBYX3 Chassis # CTC187CJ3, herringbone on all channels,
all channels are there, but have noise. Repaired the tuner, main board,
as per RCA modification, replaced Y2001 crystal,
SF301V, & the stand up board with the comb filter. Still the same.

I got this receiver today really cheap. It powers up and all panel functions
work, The Radio even tunes and locks onto stations, but there is No Audio
fron any of the 5 channels. I even tried headphones - nothing. Where do I
start. any Ideas? Schematics?

I got this unit from a friend. When I first started it I played one
side of a record and then turned it over to play the other side.  When
I pushed the Start button it whines like it is trying to start and then
shuts off.  Can't get it to work no matter what.  I put it away for 6

Anybody know where I can find a 60gb Hitachi Travelstar model
IC25N060ATMR04-0 hard drive so that I can replace the heads in one that was
dropped while running?
Honestly I don't even know that I can get the heads out without screwing

what usually breaks down in floppy drives with moderate mileage?

I have my high definition box hookup up to my 42" plasma tv with a hdmi
cord.  My kenwood reciever only has a slot for a fiber optic cable.  I
have both of them hooked up at the same time.  When I want to listen to
the tv over the Kenwood surround sound I just turn the speakers off ...

I've got a Sony SDM-HS73 LCD monitor and it has an intermittent problem.
Sometimes it will power up and work just fine but other times you can't get
any thing to display unless you unplug the vga cable and then the it will
display no input. If you plug a vga cable into it at this ...

Our Sharo R-1471 over-the-range microwave (about 10 years old) quit working.
The interior light and fan stay on continuously, and there is no response to
most of the front panel buttons.  The Sharp web site had no indication that
parts/manuals were available directly from them.  ...

I have this tv that I am trying to fix.  It powered on for about 5 mins with
the CRT's on, then it shut off.  Now it will not turn on at all.  Is there a
know problem with convergence IC's STK392-110 on this TV not allow the tv to
turn on?  I found some info that said the ...

Several years ago I was trying to figure out a way to allow a motor to
be controlled by a computer interface (to allow it to go both forward
and backward by just applying a voltage on one of two lines).  I
designed a device that could (theoretically) do it using transistors.

I ran an electronics repair business for 20 years and am now working at
a hospital. I recently acquired a 1993 25" Sanyo DS25250. It works fine
except i cannot figure out how to get the thing in the customer menu to
adjust color, brightness, contrast, etc. Only thing i can adjust by

My Tilt/Trim motor on my boat gets very hot after only cycling the
engine the full
range a couple of times.  also the bonding wires on my outboard are
getting extremly hot and melting the insulation.  None of this occurs