Furuno FS-1570 Service Manual page 183

PA 2
PA2 line is blank when FS-1570T is connected.
Ic and Vc of power amplifier on PA-2 board (05P0739) in FS-2570T are measured. If
the value is within the rating, "OK" appears.
The test signal is the same as that of RF check.
DRV board
PA-1 board
COMB board
PA-2 board
TX FIL board
FS-2570 check meter
Vc: indicates Vc on PA-1 board
Ic: indicates the sum of PA-1 Ic and PA-2 Ic.
COMB
The output from COMB board (05P0740) is measured. If normal, "OK" appears. The
test signal is the same as that of RF check.
Fig.6.1.6 Location of power amplifier
6-7
6.1 Self-test