Black Box AVS404-H User Manual page 46

Chapter 5: Troubleshooting and Maintenance
Solution #2:
Manage the EDID data manually to make the resolution of the video source automati-
cally compliant with the output resolution.
Problem:
Cannot control the device via a control device (e.g. a PC) through the RS-232 port.
Cause #1:
Wrong connection.
Solution #1:
Check to make sure the connection between the control device and the unit is secure.
Cause #2:
Wrong RS-232 communication parameters.
Solution #2:
Type in correct RS-232 communication parameters:
Baud rate: 9600;
Data bit: 8;
Stop bit: 1;
Parity bit: none.
Cause #3:
Broken RS-232 port.
Solution #3:
Contact Black Box Technical Support at 877-877-2269 or info@blackbox.com.
Problem:
Static becomes stronger when connecting the video connectors
Cause:
Bad grounding.
Solution:
Check the grounding and make sure it is connected well.
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