CM9740-CC1 fails to switch live video to CM9740-MXB

WARNING

ELECTROSTATIC DISCHARGE REQUIRED.
Discharge all static electricity from your person by touching metal prior to handling any hardware. Failure to do so may result in damage to devices.

Issue

CM9740-CC1 fails to switch live video to CM9740-MXB due to CM9740/60-VMCx version incompatibility.

Additional Symptoms Include:
  1. The CM9760-KBD-xx LCD indicates that live video switching can occur
  2. The CM9740-CC1 diagnostic screen indicates that the live video switching can occur
  3. The CM9740-MXB (Matrix Bay) displays the same time as the CM9740-CC1 which concludes that there is communication between the CM9740-CC1 and CM9740-MXB which rules out possible sercom port problem or RS422 cable problems.

Product Line

Pelco Video Management, Pelco Matrix

Environment

  • CM9740/60-VMCx (Video Monitor Card) version 2.3 and older
  • CM9740-CC1:  All versions
  • CM9740-MXB
  • CM9760-KBD-xx:  All Versions

Cause

CM9740-VMCx (Video Monitor Card) version 2.3 and older is incompatible with CM9740-CC1 (All Versions)

Resolution

 

Replace CM9740/60-VMCx (U12) version 2.3 and older with version 8.04.  The CM9740-VMCx (Video Monitor Card) must be running version 8.04 or newer for proper video switching.  For detailed instructions on how to replace (U12), refer to the CM9760-MXB Firmware Upgrade Installation Manual C1544M or follow the steps below.
 
1.  Place an order for one CM9760-BAY-E80.  One CM9760-BAY-E80 PROM chip should be ordered for each CM9740-MXB.  Order requests may be sent to salesorders@schneider-electric.com
2.  Remove one CM9740-VMC (Video Monitor Card) from the CM9740-MXB (Matrix Bay)
3.  Locate U12 and replace with the PROM chip from step 1
4.  Locate U10 RAM chip, remove for 2 minutes, then reinstall.  This step erases RAM.
5.  Insert CM9740-VMC card into CM9740-MXB
6.  Press and hold the reset button on the front of the CM9740-VMCx card for approximately 3 seconds then release.
 
NOTE:  You do not need to turn off power to the System 9740 matrix bay in order to upgrade matrix bay firmware.