Date   : Tue, 23 Oct 2007 23:22:26 +0100
From   : julesrichardsonuk@... (Jules Richardson)
Subject: UM1233 TV modulators...

Anyone know which input on the UM1233 is composite in and which is +5V?
The junk one I have here looks as follows:

          out
          __
       +-|  |-----------+
       |                |
in1 __|    top view    |
       |                |
in2 __|              O |
       +----------------+

Case shell is ground, obviously. I believe some variants have a third input 
down the left edge and one of the inputs is then ground; this one only has two 
however.

(I want to hang one off a System VDU interface board as per the manual, but 
unfortunately it doesn't list which modulator input is which)

ta

J.