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From: Dave Dunfield on 19 Apr 2007 08:19
Looking for schematic or other technical information
on an LCD power-supply./inverter made by IPT
(www.ipt.co.kr)

Model is IPHS4L19 REV 1.2
03KJUL11225

This is from a Hansol/Multitech H950 monitor.

Power supply portion appears OK, however when
the inverter is activated, the backlights only flash
briefly (By strobing the backlight control I can see
that the image is being displayed). Looks like it's
not oscillating at all after power-on, or is shutting
down very quickly.

Dave

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From: James Sweet on 19 Apr 2007 15:10
Dave Dunfield wrote:
> Looking for schematic or other technical information
> on an LCD power-supply./inverter made by IPT
> (www.ipt.co.kr)
>
> Model is IPHS4L19 REV 1.2
> 03KJUL11225
>
> This is from a Hansol/Multitech H950 monitor.
>
> Power supply portion appears OK, however when
> the inverter is activated, the backlights only flash
> briefly (By strobing the backlight control I can see
> that the image is being displayed). Looks like it's
> not oscillating at all after power-on, or is shutting
> down very quickly.
>
> Dave
>


Schematics for this sort of thing are not available, they're considered
replace-only devices. You're on your own I'm afraid, fortunately they're
not very complex and can usually be repaired.

Sometimes a bad tube will be detected and the unit will behave in that
manner as well.
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