Extron electronic ISM 182 manual Figure B-1 Removing the ISM cover

Remove (16) screws.

Remove top two front panel screws.

U6

U1

U2

Connect to

J8 and J13.

Lift cover straight up.

U102

U103

U98

U99

J13

J8

U100

U101 Extron

ISM 482

Switcher

B 8

H/HV

			7
			R
	6		H/HV	V
			R
INPUTS	5	R	V
4			G
	R
			G
3
R		G

	2				B
	R		G
1					B
	R
		G
				B
					H/HV
R	G
			B
					H/HV
	G	B
				H/HV
G	B
			H/HV
	B	H/HV
				8
B	H/HV
			7
	H/HV		6
		5
H/HV
	4

3

2

1

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.	U102
12.	Replace the top cover on the ISM.

Integration Scaling Matrix Switcher • Reference Information B-7