NX100 Troubleshooting Manual
Responding to alarms
Page 1-42
Issue 3.2 2016-02-08
11. Re-enter all the AUI information recorded in
Step 1
.
12. Set the time using the front panel AUI’s
Factory Settings - Time Setup
page.
13. Measure the VSWR threshold voltage on the control/interface PWB at R73-LHS. Adjust
VSWR THRESHOLD
potentiometer R78 until the multimeter reading is the same as the
voltage recorded in
Step 2
.
14. Upgrade the subsystem software using the AUI’s
Upgrade Software
page under the
System
Settings
menu. See the
NX100 Operations and Maintenance Manual
for detailed instructions.
GPS Sync PWB replacement
1. Remove and retain four sets of mounting hardware from the GPS sync PWB being replaced
(A11A5).
2. Set the jumpers on the replacement PWB to the same positions as the defective PWB.
3. Install the new GPS sync PWB by reversing
Step 1
and
Step 2
.
Exgine PWB replacement
1. Remove and retain four sets of mounting hardware from the exgine PWB (A11A7).
2. Set the jumpers on the replacement PWB to the same positions as the defective PWB.
3. Install the new exgine PWB by reversing
Step 1
and
Step 2
.
NOTE:
Remove the jack screws from 9-pin D-sub connector J1 on the new GPS sync PWB before
installing it.
