Extron Electronics DDS 100 - Manual (Page 46)

Reference Information, cont’d
DDS 100 Reference Information B-2
Updates and Repairs
You can perform the following updates and repairs to the DDS 100 in the
field:
• Installing a firmware update (see below).
• Replacing the AC fuse (see page B-4)
Before completing either of these procedures, follow the instructions in
“Internal access”, below.
Internal access
Updates and fuse replacement require access to the internal areas of the
DDS 100. To access the internal areas, do the following:
1. Remove the power cable from the DDS 100.
Do not open the cover of the DDS 100 without unplugging the power
cord.
2. If the DDS 100 is rack mounted, remove the input and output cables
from it, remove the unit from the rack, and remove the rack
mount brackets (see figure 12). (If the DDS 100 is not rack
mounted, you do not need to remove the input and output
cables.)
Figure 12 — Removing the cover
3. Remove 14 screws from the sides and top of the cover (figure 12).
4. Remove the cover by slightly lifting each side alternately until the
cover is free.
Reverse this procedure to reinstall the cover.
Installing a firmware update
To install a firmware update, you may need to replace IC
(integrated circuit) U41, U69, or U70, or any combination of these.
Replacing these ICs may result in loss of presets and other settings.
Reference Information
Remove #8 Screw
(4 Plcs) Each Side
and Bracket
Remove (14)
Screws
Lift Cover
straight up
R
G
B
H/ HV
V