Electronics Forum / Repair / January 2006

Can anyone help me as to how or where to locate a fault in my NEC FE750
monitor (.25mm dot pitch / flat aperture grille tube).  Every few hours,
(it's done it about 5 times now over the past few days), I get loud "Clunk"
sound as if it's just been switched on or off - picture ...

I've a Sony KV-27XBR55 and it suddenly has no picture.
Symptoms:
- no picture
- no OSD (on screen display) (the green colored text does not show)

I would like to thank all the responders to my request for help in finding
service literature for the Proxima DP8200X. I have 25 years of A/V repair
experience and have attended the Sharp LCD Projector repair training. It's
sad that Proxima (Infocus)(Ask/Proxima) etc., does not ...

I got this set, friend wants it fixed.
He said the power button is messed up, and it doesnt turn on. well, I seen
that it was a ctc187, I know thats not the case. I got the set, and pressed
the button, it presses fine. I immidiately thought in my head, since I

Is there some kind of glue that can bond copper to fiberglass and
withstand the heat of a soldering iron?  I have to glue some copper
strips to a board and can't just draw new traces with a silver ink pen
(really I can't, so don't suggest it or ask why).  I've tried slow and

The customer said that for the last few weeks the set would not turn
off. Then after a recent power surge (he thinks), the set will no
longer power on. There is no light on the front panel or relay clicks
when trying to start. The only clue if at all is a slight disturbance

Looking for service manual.  Unit is powering down by itself after about 5
minutes of use. When it powers down, it won't power back up until unit is
unplugged and wait awhile, plug it back in and wait for about 30 minutes to
an hour.  The power/standby LED then flashes green once ...

I  need to replace couples of surface mount caps for the LCD monitor ,
but which type of surface mount capacitor should  i choose? Low ESR or
general one, 105C or 85C?
Also, since I need only couple of them, where can i buy it cheaply?

My son-in-law "had" a Sony 32 inch flat screen tv that he bought about
3 years ago.
Really great picture, etc.
About a week ago it suddenly died - no picture - sound still works.

         I found an old LCD module. I'm not sure if its working. Is
there a simple method to check if the module is working (without
connecting it to ,uc) , like using switches.
         Thanks in advance

   I was curious if anyone has information on repairing a power supply for
a PowerMac G4 733 (Quicksilver).  I believe the supply has an issue as it
won't start up the machine, but it spins the fans for a few seconds before
shutting down.  Any suggestions or information would be ...

Over the last couple of weeks my Iiyama 21" Vision Master (MT-9021)
monitor's started making a series of sharp crackles when being turned
on or off, and occasionally it's completely lost picture for a fraction of
a second (also accompanied by a loud crack).

I did electronics repair in a former life - I've been out of it for
quite a while now.
Right now I have a Philips monitor that I'm trying to repair, but I
think my question is really general:

In this picture of four electrolytic capacitors:
http://static.flickr.com/22/93055272_e828b475e8_o.jpg
Which lead is the positive one for each cap?
The black and white dots on the two capacitors on the left are actually

I have a 35" Toshiba TV. It's about 10 years old. I just turned it on and
all I see is a horizontal white line across the center of the tube.
Question: Repair or replace it?
Thanks