3
4Remove top two front panel screws.
Disconnect from/
6connect to 
J8 and J13. 
5
Remove (16) screws.
Lift cover straight up.
J8J13
Extron ISM 482
Switcher
|
|
| 8 |
|
|
| 7 |
|
|
| R |
|
| 6 | R |
|
|
| |
INPU | TS 5 | R |
|
| G | ||
4 | R |
|
|
|
| G |
| 3 | R |
|
|
|
| G |
| |
| 2 |
| B | |
| R |
| G |
|
1 |
|
| B | |
R |
|
| ||
| G |
|
| |
|
| B | /HV | |
R |
|
| ||
G |
|
| H | |
|
| B | V | |
|
|
|
| H/H |
| G | B |
|
|
|
|
| H/HV |
|
G | B |
| V |
|
|
|
| H/H |
|
| B | H/H | V |
|
B |
|
| 8 |
|
H/HV |
|
|
| |
|
| 7 |
| |
| V |
| 6 |
|
| H/H |
|
| |
H/H | V | 5 |
|
|
4 
3 
2
1
B
H/HV
V | V |
H/H | |
V |
|
Figure 49. Removing the ISM Cover
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.
ATTENTION: 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” on the next page or Installing a DVI Output Card on page 67).
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.
ISM 482 Integrated Scaling Matrix Switcher • Maintenance and Modifications | 65 |
