LG RM-15LA70 Service Manual page 10

5. Option
No. Item
1 COMPO
2 3SYS
3 LGCON
4 MPIOS
5 BLUEB
6 RLOCK
Specification
0 Component input mode
0 : not ready
0 Video input applicable system
0 : NTSC-M(North America)
1 : NTSC-M & PAL-M/N multi(South America)
0 RS232C Protocol
0 : MPI Protocol(Zenith program)
1 : LG Protocol(LG program)
0 RS232C Protocol OSD display
0 : non display OSD
1 No - signal Video mode
0 : Black-Back
0 RS232C Protocol
0 : Remocon Lock
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Remark
1 : ready
1 : display OSD
1 : Blue-Back
1: Remocon Unlock