Control Panel is Off or Blank Screen

Owned by muhammad hamza
Last updated: 24 Sept 2024 by Farhaan Yousuf Sheriff
1 min read

No Power to the Screen

If you're experiencing a black screen with a Multiplexer (CISM) and need to troubleshoot, there are two potential reasons for this issue:

  • The CAT cable may be faulty

  • The port on the multiplexer could be faulty

To resolve this problem, follow these steps:

  1. First, try plugging the cable into another available port on the multiplexer.

  2. If there are no additional ports to use, swap the cable to a different port on the multiplexer and check if the issue is resolved.

  3. If the issue persists, consider changing the cable. It's possible that the cable may be damaged or not properly connected, causing the black screen. Replacing the cable might solve the problem.

By following these steps, you can diagnose and potentially fix the black screen issue associated with the Multiplexer and the cable connections.