9.7 Replacing the GTR 8000 Base Radio Backplane
13
Verify that the power amplifier is operating properly.
• The power amplifier Status and Transmit LEDs are green.
• The Alarm LED is off.
• Proper operation is confirmed using software tools, such as Unified Event Manager, and the Transmitter
Metering Screen in Configuration/Service Software (CSS).
14
Enable the base radio as follows:
a. Select
Service → Test Measurement Screen
from the menu.
b. Click
Change to Normal Mode
.
Step result:
The base radio is enabled.
9.7 Replacing the GTR 8000 Base Radio Backplane
In a GTR 8000 Base Radio, the backplane is the circuit board at the rear of the card cage which connects the power
supply, transceiver and power amplifier.
shows the metal cover that must be removed to access the
backplane. See
3.4.5 Connections – Rear (Integrated Voice and Data), page 3-23
and
for the ports and cables that must be disconnected in order to remove the cover.
Figure 9-9
GTR 8000 Base Radio Showing Connections to Backplane Through Backplane Cover
The procedure assumes the following service access clearances:
• At least 60.96cm (2 ft) access at the rear of the rack, or
• At least 60.96cm (2 ft) access on one side of the rack, and at least 6 inches at the rear of the rack
9.7.1 How To Replace a GTR 8000 Base Radio Backplane
Procedure Steps
6871022P86-A - November 2012
9-21
Содержание GTR 8000
Страница 2: ......
Страница 4: ......
Страница 6: ......
Страница 14: ......
Страница 18: ......
Страница 22: ......
Страница 26: ......
Страница 60: ......
Страница 80: ...GTR 8000 Base Radio Figure 2 22 Base Radio Backplane Mounting Location 2 20 6871022P86 A November 2012 ...
Страница 177: ...5 8 1 3 VHF Tuning Procedure Figure 5 1 Preselector Tuning VHF 6871022P86 A November 2012 5 7 ...
Страница 181: ...5 8 2 3 UHF Tuning Procedure Figure 5 2 Preselect Tuning UHF 6871022P86 A November 2012 5 11 ...
Страница 230: ......
Страница 234: ......
Страница 244: ......
Страница 286: ......
Страница 300: ......
Страница 338: ......