ISS 408 Integration Seamless Switcher • Maintenance and Modifications7-2

Maintenance and Modifications

Opening and Closing the Switcher

To replace the firmware or install the optional DVI output card, you need to open
the ISS’s case. Extron recommends that you send the unit in to Extron for service
and updates.
Open and close the switcher as follows:
1. Disconnect the AC power cord from the ISS to remove power from the unit.
To prevent electric shock, always unplug the ISS from the AC power
source before opening the enclosure.
2. If the ISS is installed in a rack, disconnect all signal and control cables and
remove the ISS from the rack.
3. Remove the 16 screws, 8 on the top and 4 on each side of the ISS cover
(figure 7-1).
12345678
100
-
240
50/60 Hz
1.2A MAX.
R
1
G
B
H/HV
R
2
G
B
H/HV
R
3
G
B
H/HV
R
INPUTS
4
G
B
H/HV
R
5
G
B
H/HV
R
6
G
B
H/HV
R
7
G
B
H/HV
R
8
G
B
H/HV
B
H/HV
V
H/HV
V
Remove (16)
screws.
Remove top two
front panel screws.
Lift cover straight up.
D
isconnect from/
connect to
J8 and J13.
J8J13
3
4
6
5
Figure 7-1 — Removing the ISS cover