Thanks again 3FG.

Your suggested codes didn't match exactly, but did provide enough info so that with additional trial and error I got the following keys mapped out. Sound is about the only thing missing now (not a big issue and not worth addition effort). I read somewhere on the net that the OBC codes over about 200 may not work on a "normal" remote which could explain why AV In, YUV In, and PC In are not working, but I can access these from the Input Key. Thanks again for all your help. Regards.

Here are the codes.

Equipment: Venturer PLV16198 19” HDTV / CRT
Protocol: NEC1 (Unless Otherwise Noted)
Device #: 04 (LG)

Function (OBC) = Operation
00 = Ch Up/Arrow Up
01 = Channel Dw
02 = Vol Up
02 = Vol Up (NEC2 Protocol)
03 = Vol Down
03 = Vol Dw (NEC2 Protocol)
04 = Menu
06 = null
08 = Power On
09 = Mute
14 = null
26 = Last Channel (Previous)
37 = Function (Input Select)
38 = null
40 = Picture (Screen settings)
54 = null
58 = Info (Display)
64 = Closed Caption (Subtitle)
71 - Arrow Up
72 = Arrow Down
75 = null
76 = Format (Aspect Ratio)
80 =null
88 = null
89 = Arrow Left
90 = Arrow Right
91 = Exit
170 = null
196 = null
197 = null
213 = null
214 = null
unknown = Sound