Icom IC-M424 Service Manual page 26

• LOGIC UNIT
(BOTTOM VIEW)
UP
LEFT
ENT
RIGHT
Q9
DOWN
Q8
R46
R101
D5
D4 B7572D
CLR MENU
D7 C104 R103
R108 EP11
C108 C105
R52
J4 J3
J3
J4
CH16
• CONNECT UNIT
(BOTTOM VIEW)
B7574C
K
W2
C56
R49
R50
R58
R59
R60
C23
C22
IC9
C21
J5
R8
R61
J5
R62
C24 C25
R9
C15 C20
C3 C11 C10 R11
R2 R97
R1 C96
R12
R34
C38
C37
C36
C35
R5
C4 R26 R25 C7 R21 C1
C16 C13
C6
R27
C33 C18
IC5
R28
R29
S4 S3
S2
EP2
J2
A
W1
C54
C55
R17
C69
R54 R57 C67
IC11
CP6
C65
IC6
R53
R90
CP8
IC7
R76
Q5
CP7
R92
C84
R96 C81 R74
C83
R95
R75
R3
C82
C112
J1
C111
CP9
J1
Q4
R84
CP4 CP5
C71
R66 DIST
IC10
C74
R65
S1
• DIAL UNIT
(BOTTOM VIEW)
GND B7573C
DIALA
DIALB
POW
7 - 2
The combination of top side and bottom side of this
SP1
(CHASSIS)
W1
(FRONT)
R1
(FRONT)
C166 C162
C165 R115
J2
J2
R48