Furuno FS-1570 Service Manual page 131

TX Pin No.
FIL & Name execution
U1 -
U2 -
#16 Q1
#15 Q2
#14 Q3
#13 Q4
#12 Q5
U4
#11 Q6
#10 Q7
#9 Q8
#16 Q1
#15 Q2
#14 Q3
#13 Q4
U3
#12 Q5
#11 Q6
#10 Q7
Q8
#9
Table 5.3.3 Signals generated by DATA 1 on TX FIL Board
Order of
Signal name
1-8
N.C
9-16
N.C
17 PA ON1, PA ON2
18 DA ON
19 N.C
20 A
21 B
22 C
23 INH 1
24 INH 2
17
17.0 to 25.5 MHz LPF
18
11.0 to 17.0 MHz LPF
19 7.0 to 11.0 MHz LPF
20 5.0 to 7. 0 MHz LPF
21 3.6 to 5.0 MHz LPF
22 2.3 to 3.6 MHz LPF
23
1.605 to 2.3 MHz LPF
24
BK RL CONT
5-14
5.3 T-CPU board (05P0732)
Function
Not used
Not used
Turns on/off Power amplifier on
PA board
(FS-1570T: 05P0735; FS-2570T:
05P0739)
Turns on/off Driver on DRV board
(05P0738)
Selects following check signals
connected to U5 and U6 in order
1) ALC, CHK, OUTVf, OUTVr,
INVf and INVr from TX FIL
(05P0736)
2) VC1, IC1 and TEMP1 from
PA (05P0735)
3) VC1, IC1, TEMP1, VC2, IC2
and TEMP2 from PA
(05P0739)
4) DA TEMP from DRV
(05P0738)
5) COMB CHK from COMB
(05P0740)
Selects low pass filter on TX FIL
board (05P0736)
Switches 50 ohm BK relay, K15 on
TX FIL board (05P0736)