Interconnections - Furuno FS-1503 Service Manual

1. Interconnections

SP
TX KEYED, RX
MUTE, BK+/-
BK
TD/RD, LINE IN/OUT,
TX KEY, RX MUTE
REMOTE
DUMMY
·
·
TUNE, BUSY, THROU
DUMMY, 12 V
CPU (05P0665)
(CPU/LCD/KEY)
CHK EXC, DDS DATA/CLK, RX, MUTE,
TX KEY, TXD, RXD, TX KEYED
PTT, T/R, MUTE, SQ SIG, S, TONE, EXC ON,
PA ON, BK ON, RF, ST FIL, ST TX/RX, CLK,
12 V DATA, PLL1 ENB, PLL3 ENB, DDS LOAD,
ST SYN, UNLOCK, TEMP, ALC REF, FAN
MIC
TX/RX (05P0666)
(option)
CONT (05P0459)
REMOTE-A/B (05P0457/8)
Figure 2-1 Interconnection Diagram
ANT
COUP (05P0669)
DUMMY CONT (05P0670)
Ω
DUMMY (10 + 250 pF)
CONT RF
FREQ/CH
TX
RX
PA ON
TEMP
ALC
RF
BK ON
CLK, ST, DATA
12 V
SW.REG (05P0668)
2-2
GND
AT-1503
FS-1503
ANT
PA IN
RX OUT
PA/FIL
(05P0667)
13.6 V
13.0 V 13.6 V
(option)
30 A
13.6 V