4
There are two connectors on the OSD board. CN1 is for the cable connecting the OSD board to the
main controller board. The 3-pin connector CN2 is for a IR sensor board for OSD adjustment with a
remote control. This feature is not implemented in Version A MG21 controller.
4. System Connection
The typical connection diagram of the MG21 LCD controller to Landmark VHB LCD modules is
illustrated in Fig. 4.
MG21
LCD
Connector
In
v
e
rter
OSD board
Pow
er
Sup
p
ly
Dimming & On/Off control
Inverter
P
o
wer
Power in (12V)
LC
D c
a
b
le
To VHB
Backlight
VHB LCD
Module
Fig. 4
- Typical Connection Diagram from the MG22 to a Landmark VHB LCD and the Inverter
GENES
IS
gm5621
CN8
VGA
CN200
CN401
CN6
CN300
C
N
201
CN501
CN6
00
DVI
Aud
io
In
put
Pow
er
In
put
To
In
ve
rte
r
To OSD Board
LVDS
