Icom IC-7400 Service Manual page 77

9-14 PA UNIT
• TOP VIEW
J5
PPWS
30
PDRS 29
PFSB
PMDT
PMCK
P5V
P5V
PH5V
THML
P8V
P8V
GND
PT8V
GND
PVRF
PVFR
GND
PGND
PICL
PICH
P14A
P14A
P14V
P14V
P14V
P14V
P14V
P14V
2 P14V
PHV 1
to MAIN
unit J120
J21 J22
DRI1 GND
1 1
DRI1 GND
GND DRO1
4 GND 4 DRO1
to DRV board to DRV board
J23 J24
1 GND 1 DRO2
GND DRO2
DRI2 GND
4 DRI2 4 GND
to DRV board to DRV board
P1
YGR
to RF unit J151
J202
J201
3 V-B2
to VARISTOR-C
to VARISTOR-D
GND
board
1 V-B1 board
1 3
J101
to VARISTOR-A
board
1 3
9 - 17
to FILTER
unit EP5
1 18
16 9
9 10
1 8
J102
to VARISTOR-B
board
to FILTER
unit EP4
3 1
P601
VRX
to RF unit J121