92-193 G457-3 Antenna Installation (Scanner; continued)
C. Installation (continued)
6. Apply small bead of B270-1 sealant (0.1 inch max in height) around antenna
(exterior only) where it attaches to cabin skin.
7. Push in SCANNER (2 amp) circuit breaker at panel. Turn battery & news equipment
switches on.
8. Perform appropriate functional checks per Uniden Scanners User’s Guide. Turn
battery & news equipment switches off.
D. Scheduled Inspections
Every 100-hour or annual inspection, inspect CI 285 antenna for proper installation
(refer to R66 Illustrated Parts Catalog Chapter 92) & proper operation per Part C
steps 7 and 8.
E. Special Inspections
1. Refer to Figure 92-1. Turn battery & news equipment switches off. Open circuit
breaker panel.
2. As required, remove CI 285 antenna per Part A. Inspect condition of and verify no
obvious damage to antenna, circuit breaker, and wiring. Verify no loose, chafed,
or broken wires or terminals. Verify no evidence of arcing. Verify equipment
security.
3. Secure circuit breaker panel. Install antenna per Part A if removed.
92-200 G470-1 Aft Console Installation
The G470-1 aft console installation is a sheet metal console installed in place of the F931-1
(middle) aft seat assembly, reducing maximum number of occupants to 4. The aft console
contains equipment and controls used by the camera operator.
92-210 G487-1 FM Transceivers Installation
A. Description
FM transceiver #1 is mounted in the lower instrument panel, and FM transceivers #2
and #3 are mounted in the rear equipment console. All 3 transceivers are selectable
from any of the three main audio control panels.
B. Schematic
Refer to Figure 92-10 for G487-1 FM transceivers installation wiring diagram.
Page 92.36 Chapter 92 ENG Version JUL 2020
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