Icom IC-7400 Service Manual page 66

9-8 MIC BOARD
J1
7 1
2
6
8
5 3
4
• BOTTOM VIEW (PHONE BOARD)
2 10
J2
1 9
to S-LOGIC
board J508
• BOTTOM VIEW (TEN-KEY BOARD)
• BOTTOM VIEW (MODE BOARD)
2 22
J1
to DISPLAY
board J505
1 21
J1
1 LDV
5VL
KI2
KI3
KI4
KI5
KI6
KI7
XFCK
MPWK
MPRK
TXD
RXD
LOCD
SPLD
FIND
GND
GND
GND
GND
21 GND
GND
to DISPLAY
board J503
9 - 6
2
22