Turn the monitor off, and unplug the AC from it. You can carefully
unassemble, and carefully re-solder the connection.

If you are conserned about stored voltage, you can take readings of
the power supply outputs with a DVM to make sure that there are no
stored voltages feeding out. Usually, only the primary side of the
power supply, and the output of the high voltage sections are
particulary dangerous for a very long time after the monitor has been
shut down, unless properly discharged.

Jerry Greenberg
http://www.zoom-one.com

--




"s" wrote in message ...
Had some power brownout probs... may be related...
Sony HMA 200 17" Trinitron heats up and then all of a sudden the picture at
the upper right pops in about 1 cm.
Occasionally, it will pincushion toward middle.
Whacking sides of monitor fixes it for a few minutes.

Pulled cover... knocked around on PCB with a piece of plastic shaft from
coathanger.
Solder open seems to be near a heatsink and transistor near the front left
on main board right by flyback.

If I can manage to yank the board up to reflow some joints, am I gonna get
my balls blown off?

I've repaired studio strobes with a voltage of around 600v successfully and
lived to tell.

With cover off and brightness down to 0 the problem has not reoccured in
about an hour now.

Also- should I keep brightness down and up the contrast to prolong the life?

Thanks in advance!
I dearly love this little monitor and just learned that Sony has abandoned
all sub-21" CRTs =(

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