Icom IC-7400 Service Manual page 66

2
J8
• CTRL UNIT
1
(TOP VIEW)
P2
HRX
to RF unit J1
P4
TUOT
from TUNER unit J4
21
J5
• TUNER UNIT
(TOP VIEW)
22
9 - 7
22
to TUNER
unit J5
21
J14 J13
P3 2 PAFE 2 PAFE
TUIN
from TUNER unit J3 1 SSP 1 SSP
to CHASSIS to MAIN
SP1 unit J741
J11
T14V
1
AW
AX
AY
5 AZ
to TUNER
unit MF2
J10
1 T14V
PW
PX
PY
5 PZ
to TUNER
unit MF1
J7
1 C14V
C14V
CT8V
SETI
C5V
C-8V
GND
CREF
CDRS
CANT
21 CIST
to MAIN
unit J140
P501
CTIN
from PA unit J502
1
to CTRL
unit J8 P3
TUIN
to CTRL unit J3
2
P4
TUOT
to CTRL unit J4
• FILTER BOARD
(TOP VIEW)
to PA unit EP6
to PA
unit EP7
C14V 2
GND
GND
C5V
GND
GND
CFOR
GND
GND
GND
CIKY 22
• PHONE BOARD
(TOP VIEW)
ELEC-KEY
2 10
J3
1 9
• RIT BOARD
(TOP VIEW)
The combination of top side and bottom side of this
page shows the actual confi guration of P.C. board.
to CHASSIS P1
to
CHASSIS
P1
• PBT BOARD
(TOP VIEW)
PHONES
M-CH
TWIN PBT
9 1
J1
to S-LOGIC
to S-LOGIC
board J501
board J507
10 2
• MIC BOARD
(TOP VIEW)