B-7Integration Scaling Matrix Switcher • Reference Information
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 twofront panel screws.Lift cover straight up.

Extron

ISM 482

Switcher
U1U2J8J13Connect toJ8 and J13.U100U101U6 U102U103U98U99

Figure B-1 — Removing the ISM cover

8. Locate the firmware chip(s) to be replaced on the main or

front panel circuit board (figure B-1).

9. After you are electrically grounded, use a DIP chip puller to

grasp the IC chip(s) and pull it (them) out of the socket.

10. Align the slots of the new firmware chip(s) with the angled

corners of the socket in the same orientation as the old

chip(s). Gently, but firmly, press the chip(s) into place in the

socket.

11. 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.

12. Replace the top cover on the ISM.

U102