7-5ISS 408 Integration Seamless Switcher • Maintenance and Modifications

4. Align the slots of each new firmware chip with the angled corners of the
socket in the same orientation as the old chip. Gently, but firmly, press the
chip into place in the socket.
5. Close the switcher. See “Opening and Closing the Switcher”, starting with
step 9 on page 7-3.
Installing a DVI Output Card
You can install an optional digital visual interface (DVI) output card in the ISS.
With the card installed, an additional program output is available as DVI video
on a standard DVI connector. This program output is in addition to the standard
RGB video on BNC connector and 15-pin HD connectors. Extron recommends
that you send the unit to Extron for service and updates.
Install an optional DVI output card in the ISS as follows:
Changes to electronic components must be performed by authorized
service personnel only.
To prevent electric shock, always unplug the ISS from the AC power
source before opening the enclosure.
1. Open the switcher. See “Opening and Closing the Switcher” on page 7-2.
CAUTION
Do not touch any switches or other electronic components inside the ISS.
Doing so could damage the ISS. Electrostatic discharge (ESD) can
damage IC chips even though you cannot feel it. You must be
electrically grounded before proceeding with any electronic component
replacement. A grounding wrist strap is recommended.
2. Locate the DVI output card connector opening on the rear panel and the
DVI output card connector J14. When viewed from the front, connector J14
is in the far left corner of the main circuit board (figure 7-3).
DVI Output Card
Connector J14 on
Main Circuit Board
DVI Output Card
Connector Opening
in ISS Rear Panel
Figure 7-3 — DVI output card connector opening and socket J14