Nautel GV10, Troubleshooting Manual

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GV10/GV7.5 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS
PAGE 4.1.64 VERSION 3.2 2016-03-10
Controller PWB Replacement - Controller
Using Figure 4.1.24 as a guide, replace the controller module’s controller PWB (A4A2) as follows:
Figure 4.1.24: Controller PWB Location - Controller Module top view
1. Remove the controller module (A4) as described in “Controller Replacement” on page 4.1.59 .
2. Place the controller module on a suitable work surface. Remove the top cover. Retain hardware for
re-installation.
3. Disconnect all mating plugs from the controller PWB (A2) inside the controller module.
4. At the rear panel, remove any securing hardware for connectors that protrude through the rear
panel. Retain all hardware for re-installation.
– Locate the two DB-25 connectors (J5A and J5B) and the three DB-9 connectors (J6A, J6B and J8) on the rear panel.
Using a 5 mm nut driver or socket, remove the mounting nuts.
TOP VIEW
(cover removed)
CONTROLLER
PWB
A2