"spudnuty" wrote in message
oups.com...

Mr Fixit wrote:
"Mac" wrote in message
ink.net...
Hi folks,
I have a BenQ 567s V2 LCD monitor that is non-functional. It powers up
but the only picture I get is pure white with vertical red and blue
lines.
While booting, however, I was able to read some of the on-screen text
but
it's always fairly white. I disassembled the unit (observing all
precautions) but didn't find any loose connections.
I had sold the unit in working order but the buyer found it in this
state
after shipping. It was well packed with gobs of bubble-wrap. I had
him
ship it back. There are no signs of abuse inside or out.
Any thoughts?
Thanks,
-Mac
Did you disassemble the display all the way down to inspect the
connections onto the display itself? or the display driver board? I
just worked on a Compaq laptop with LCD problems and the flex cable had
just popped off the display driver board in a number of places. It was
a soldering problem because I tested some of the components on that
same board and stopped because they would just pop off under the
slightest pressure.
Richard


Okay, complete disassembly. FFCs look okay, at least with visual
inspection, on both ends (panel and controller board). Visual inspection of
controller board looks okay, not that just looking at it will tell me
anything. All ribbon cables, etc, are tight and look good.
Okay, I think the conclusion here is that one of the boards got fried. How
could this happen during shipping? I don't see any cracks in any of the
boards and the housing looks fine. Could the buyer have hooked it up wrong
or trashed the unit with the wrong refresh rate or something along those
lines?
Thanks again