Select Wing Mic - Furuno FM-8800D Service Manual

4.5.2 Select Wing MIC

You can select Carbon MIC or Dynamic MIC depending on Wing MIC type.
The factory setting is Dynamic MIC.
Dynamic MIC: HS-6000FZ5
Carbon MIC: HS-6000FZ6
C89
1u
W. HANDSET
U42
CR17
CPU: 05P0773
J5 Setting
1 to 2
2 to 3
R106
1k
R111
10k
R108
820
Fig. 4.5.5 CPU Board, W. MIC Circuit
Fig. 4.5.6 CPU Board, Location of J5
4-31
Table 4.5.1 W. MIC setting
MIC Input Level
-48 dBm/600 ohm
0 dBm/40 ohm
J5
1
2
3
C91
1u
W. MIC(H)
R110
W. MIC(C)
10k
R84
47
C90 R83
10u 47
5V
JP5
4.5 Jumper Setting
Remarks
Factory default
Dynamic MIC
Carbon MIC
Wing MIC-1
Wing MIC-2
1 3