Extron electronic ISM 482 - Manual (Page 86)

7-3 Integration Scaling Matrix Switcher • Maintenance and Modifications
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.