Extron electronic ISM 482 - Manual (Page 88)

7-5 Integration Scaling Matrix 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, a additional DVI video output 1 on a standard DVI
connector. The DVI output is the video tied to output 1 and is in addition to the
standard output 1 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 ISM as follows:
Changes to electronic components must be performed by authorized
service personnel only.
To prevent electric shock, always unplug the ISM 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
ISM. Doing so could damage the ISM. 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 ISM Rear Panel
Figure 7-3 — DVI output card connector opening and socket J14