Icom IC-7400 - Page 61

9 - 2
• S-LOGIC UNIT
(BOTTOM VIEW)
• PA UNIT
(BOTTOM VIEW)
• RF UNIT
(BOTTOM VIEW)
1
2
9
to PHONE board J3
10
J507
GND
GND
DASH
GND
PA FO
GND
DOT
PHNL
PA FE
PA FE
1
2
9
to MIC board J2
10
J508
MIC
MUD
MSEND
MMICE
NC
M8V
SQLS
GND
PA FO
NC
22
to DISPLAY
board J1002
21
2
1
J302
GND
GND
PB2A
TRAK
ANTK
APFK
DSHK
KYSL
PWRL
APFL
RFL
GND
PB2B
KIOI
TUNK
NRK
DOTK
MUD
RITL
MIGL
NRL
AFL
1
to DISPLAY
board DS1002
4
J303
CFL -
NC
NC
CFL+
1
4
to MAIN DIAL
J604
5VL
MUP
MDN
GND
1
2
21
to MAIN
unit J180
22
J601
14V
8V
5VL
GND
-
8V
MIC
SEND
PWRK
GND
LFMD
PAFO
GND GND
5VL
GND GND
MICE
SQL
SRES
LMFD
PAFE
SRS
1
2
to DISPLAY board J1001
21
22
J301
GND
-
8V
LOCK SRES
MDNK
PB1A
MSB
LMFD
MSA
BKL
5VL
8V
SPEK
-
8V
MUPK
PB1B
GND
LFMD
RSB RSA
GND
5VL
10
2
9
1
to PBT
board J1
J501
5VL
PB1A
MCHB
PB2B
GND
PB1A
MCHA
PB2A
GND
GND
10
2
to RIT board J1
9
1
J502
GND
GND
GND
GND
5VL
GND
GND
GND
RDN
RUP
1
7
14
The combination of top side and bottom side of this
page shows the actual confi guration of P.C. board.