Furuno FM-8500 - Manual (Page 24)

20
Procedure
1. Release write protection, referring to service manual for the
procedure.
TEST display appears.
TEST VHF ch70
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Figure 10a Test display
2. Press SELECT key, 9 key, RT key, and then press ENT key four
times.
RT4-TxAF MONITOR
OFF[1] ON[2]
Figure 10b TxAF monitor screen
3. Select ON and press ENT key.
4. Press CANCEL key nine times to return to the TEST display.
TEST VHF ch70
manual
Figure 10c test screen
5. Rotate VR152 clockwise so that the volume of the dynamic MIC
is maximum.
Rotate clockwise
Marking
VR152
0Ω MAX
From bottom center;
Leftward 45
°
: 0 ohm
Rightward 45
°
: Maximum
Figure 10d VR152 setting
6. Select “OFF” on the “RT-4-TxAF MONITOR” screen and press
ENT key.
7. Re-write protect settings.