Re: Samsung 750s problem
- From: "JANA" <jana@xxxxxxxxxxxx>
- Date: Mon, 18 Apr 2005 08:55:40 -0400
>From your description, this is most likely a cold solder connection, or a
bad connector, or a part that is mechanically intermittent.
If you have the proper soldering tools, and some electronics service
experience, you can open the monitor, and do a search for it. I would start
in the scan amplifier sections, and pin amp sections.
The way that this is done, is the boards are jigged up or removed so that
the underside can be closely inspected. If this is not found by visual
inspection, then the board have to be run in a set-up where they can be
flexed, and prodded to locate the area of the fault. Then sometimes
re-touching up the solder connections in the suspect area will fix it. This
procedure is continued until the faulty solder connection or device is
located.
Considering that from the nature of your question, you are not doing TV or
monitor servicing. I would strongly suggest you give the monitor out for
proper service. There are very serious safety issues involved when working
on these monitors.
--
JANA
_____
"Andrew Howard" <ask.me@xxxxxxxxxxxxx> wrote in message
news:36L8e.15349$5F3.2886@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I have an out of warranty Samsung SyncMaster 750s computer monitor that
has suddenly developed a problem.
The display has turned into a sort of warped, pin-cushioned trapezium
shape. It is uneven in that the further you go away from the center, the
more the individual colours separate. It also has some weird vertical
ripples on the left side.(I can upload a picture if necessary). This
developed suddenly, without warning, and without anything being done to it.
It is not the graphics card, as the OSD does the same thing when you
bring it up. It is also not heat dependant, as I have turned it off for a
while to cool, then turned it back on without any change.
I gave it a gentle whack on the top, and it fixed itself for a couple of
hours. It then reverted however, and I can't getting it working properly
again.
I'm thinking it is maybe a dry, or cracked joint. Does anyone have any
ideas where? Or maybe can give an alternate reason?
Also, does anyone know where I can get the schematic for this monitor? I
have done a search of google without result.
Thanks in advance,
Andrew Howard
.
- References:
- Samsung 750s problem
- From: Andrew Howard
- Samsung 750s problem
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