Kramer VP-450, User Manual, Page: 7 / 12

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-450 1:4 High Resolution UXGA DA
4
Figure 3: VP-450 1:4 High Resolution UXGA DA Underside
Table 2: VP-450 1:4 High Resolution UXGA DA Underside Features
# Feature Function
1 BLUE DC-AC Switch
2 GREEN DC-AC Switch
3
C
O
U
P
LI
N
G
RED DC-AC Switch
Switch to DC to select DC coupling
1
, switch to AC to select AC
coupling (removing the DC offset of the input signal)
4 Hs (Horizontal Sync) Switch
5 Vs (Vertical Sync) Switch
Set both switches
2
to Hi-Z (TTL
3
) if the source is, for example, a
digital graphics card. Set both switches to 75 (ANALOG) if the
source is analog based, for example, an RGBHV source with coaxial
cable for sync
6 ID Bit Switch Slide to the left to set to ON
4
; to the right to set to OFF
1 Achieving the best linearity and signal fidelity
2 Both the Hs and the Vs switches should be set identically – since graphics cards do not have mixed (TTL and ANALOG)
syncs. (No harm will occur to the graphics source if the switches are set to the wrong direction)
3 “Transistor-Transistor Logic” for syncs with digital logic levels
4 Enabling the notebook or laptop to output a VGA signal to an external VGA monitor