RS-232 Control of an LCD Monitor

  • Thread starter Thread starter Grinder
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G

Grinder

I just bought a couple of cheapie LCD HDTVs.
http://www.newegg.com/Product/Product.aspx?Item=N82E16889197004&Tpk=aoc L22W761

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)
http://www.rdex.net/projects/lg_tv/37lc7d.pdf

This gateway one is simple by comparison:
http://support.gateway.com/s/Manuals/Desktops/8508947/8508947.htm

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?
 
Grinder said:
I just bought a couple of cheapie LCD HDTVs.
http://www.newegg.com/Product/Product.aspx?Item=N82E16889197004&Tpk=aoc L22W761


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)
http://www.rdex.net/projects/lg_tv/37lc7d.pdf

This gateway one is simple by comparison:
http://support.gateway.com/s/Manuals/Desktops/8508947/8508947.htm

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?
Click to expand...

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

http://www.aocdisplay.com/envision/manuals/L22W761.pdf

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.

http://www.envisiondisplay.com/support.asp?EPage=support&SMenu=manual

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.

Paul
 
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