Extron Electronics MAV Plus Series User Guide - Manual (Page 29)

Sync Termination Switches (CrossPoint)
c
Sync termination switches — The RGB (CrossPoint) matrix switchers have input
Sync termination switches on the rear panel (see figure 19) that provide a way to
condition non-TTL sync levels greater than 5V p-p. Sync termination enables the sync
to be properly passed from input to selected output(s). The matrix switchers have two
sets of sync termination switches; one for horizontal or combined sync and a second
set for vertical sync.
The
CrossPoint 450 Plus matrix switchers have Sync termination switches for inputs 1
through 8.
The
CrossPoint Ultra matrix switchers have Sync termination switches for inputs 1
through 4.
CrossPoint Ultra
816, 168, 1212, and 1616
CrossPoint Ultra
84, 88, 124, and 128
H SYNC V SYNC
V V
15
16
15
16
1 4 2 3 1 4 2 3
O U T P U T S O U T P U T S
I N P U T S I N P U T S
SYNC V SYNC
H
HV 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
CrossPoint 450 Plus
2412, 2424, 3216, and 3232
Figure 19. Sync Termination Switches
Each switch provides the option of selecting either 510 ohms or 75 ohms.
The 75 ohms position is required only for an input with non-TTL sync, greater than
5V p-p. The normal position is 510 ohms.
NOTE: An input that produces an out of sync display, a display that is rolling
vertically with or without horizontal tearing, could indicate a non-TTL sync input.
A device that is known to output non-TTL sync levels (greater than 5V p-p)
should be connected to one of the inputs with sync termination switches, and the
switches for that input should be set to the 75 ohm position. If you are not sure,
check the specifications in the User Guide for the input device.
CrossPoint and MAV Series Matrix Switchers • Installation 23