RS-232 Control of an LCD Monitor

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I just bought a couple of cheapie LCD HDTVs.

It has an RS-232 port that appears to be a means of control.  I've seen
some projects where they've hooked that port up to an IR receiver to
enable more control of the device than the stock remote.

I've looked around for a description of the protocol and command set,
but have found a lot of variation.  This LG monitor has a very
sophisticated system: (page marked 86)

This gateway one is simple by comparison:

So, I suspect that I will need a command reference to get anywhere.
I've written AOC, but in the realistic scenario where they don't give it
up, where can I get that info?

A related question: Does anyone know who really makes this unit, or at
least the part that includes the RS-232 control/service interface?

Re: RS-232 Control of an LCD Monitor

Grinder wrote:
Quoted text here. Click to load it
Quoted text here. Click to load it

There is a manual here, but it is silent about the RS-232.

Their other manuals seem to be similar (as in, useless). One mentioned
the RS-232 is "for update", implying you could somehow update the firmware
in the unit.

A screwdriver could answer some of your questions, but then it depends
on whether the unit has any "warranty void" stickers, as to whether
that is a good idea.


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