Extron Electronics RGB 168xi - Manual (Page 19)

RGB 168xi xi xi xi xi • Installation and Operation 2-9
Negative Follow
1
1 and 2
2 and 3
J19
1
J40
1
J20
1
Front
Rear
Power Supply
J20: Sync polarity
jumper
J40: Vertical sync
width jumper
pins 1 and 2 connected, and
pins 2 and 3 connected.
Circuit board jumper locations
4 . Configure the jumpers. To configure the jumpers, use
pliers to pull the jumper shunt off the pins, then place
the jumper on the appropriate pins.
Changing jumper settings
The jumpers perform the following functions:
J-20: Sync polarity jumper — This jumper adjusts the
output sync polarity. Horizontal (H) and vertical
(V) sync output can either follow input sync
polarity, or be forced to negative.