Kramer Electronics Ltd.
DIP-31
– Principles of Operation
11
Audio Signal Control
The Option DIP-switches 3 and 4 (see
Setting Configuration DIP-switch
) control
the manner in which audio is handled.
The following table describes which audio signal is embedded in the output.
Selected Video
Input
HDMI Embedded Audio
Detected
Analog Audio
Detected
DIP-
switch 3
DIP-switch
4
Audio on HDMI
Output
VGA
N/A
Yes
N/A
N/A
Analog audio
VGA
N/A
No
N/A
N/A
No audio
HDMI
N/A
N/A
Manual
Embedded Embedded audio
HDMI
N/A
N/A
Manual
Analog
Analog audio
HDMI
Yes
No
Auto
N/A
Embedded audio
HDMI
Yes
Yes
Auto
Embedded Embedded audio
HDMI
Yes
Yes
Auto
Analog
Analog audio
HDMI
No
Yes
Auto
N/A
Analog audio
HDMI
No
No
Auto
N/A
No audio
When there is an audio signal but no video signal the output is a black video pattern in
conjunction with the analog audio signal.
VGA Phase Shift
To minimize phase on the input VGA signal, the VGA sampling phase can be shifted using
the following methods:
•
A long press on the PC IN select button on the front panel.
Each long press steps the phase shift up one step, starting from 0 and going to 31.
When set to 31, another long press steps the shift to 0.
•
A remote, contact-closure switch connected to pins 1 and G of the Remote terminal
block.
Each long press steps the phase shift up one step, starting from 0 and going to 31.
When set to 31, another long press steps the shift to 0.
•
Operating DIP-31 Remotely Using Web Pages
).
•
Protocol 3000 commands over RS-232 (see
).
VGA phase default value is 6.
