4. Remove the top two front panel screws.

5. Lift the top cover straight up approximately 5 inches until you can access the fan power cords.

CAUTION

Do not touch any switches or other electronic components inside the ISM. Doing so could damage the switcher. Electrostatic discharge (ESD) can damage IC chips even though you cannot feel it. You must be electrically grounded before proceeding with firmware replacement.

A grounding wrist strap is recommended.

6. Disconnect the two fan power cords from connectors J8 and J13 on the main board.

7.

Lift the top cover out of the way.

8.Perform the desired maintenance procedure. See “Installing a Firmware Upgrade” or “Installing a DVI Output Card”, later in this chapter.

9.Reconnect the two fan power cords to connectors J8 and J13 on the main board. It does not matter which fan is connected to which connector.

10. Replace the top cover on the ISM.

11. Fasten the top cover with the screws that were removed in step 3 and step 4.

12.Rack mount the switcher if desired and reconnect all cables.

Integration Scaling Matrix Switcher • Maintenance and Modifications

7-3

Page 86
Image 86
Extron electronic ISM 482 manual Grounding wrist strap is recommended