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9-4 LOGIC BOARD
•
TOP VIEW
9 - 2
Q8
R71
C31
R70
R73
R61
R60
R59
R69
R68
R67
R66
R65
C23
C22
C32
R87
R86
R26
BE
R8
C7
J3
J3
1
R5
R88
R9
Q1
IC1
R58
R57
R56
R55
R51
R50
R64
R63
R62
R72
R53
R54
R52
R85
C8
Q11
C18
C30
IC2
C12
R21
C10
R18
R17
R20
R22
R19
R13
R15
R16
R14
Q2
R12
Q4
R44
R45
C21
R1
1
R81
R80
R84
IC6
C28
IC3
R7
C24
X1
R46
R47
C14
R78
R76
R4
D4
C4
C3
C6
J1
J1
1
C5
D5
D6
C1
D3
D2
Q9
Q6
C25
C26
R36
R3
Q5
Q7
R77
R6
D1
C9
R34
IC7
IC4
R39
R89
R2
R79
C1
1
C13
R35
Q3
R83
R10
C20
R75
R74
R1
C2
B5679A
ICOM
J4
J4
SP+
—
SP
BPLVL
VCC
—
5V
GND
GND
TMUT
TXDET
HI/LO
SQLV
PTT
BPFV
—
—
SQL
UNLK
PSTB
SP+
SP
BEEPM
—
VCC
5V
RCV
SEND
GND
GND
ATIS
—
—
—
PTTM
RMUTM
—
GND
PDATA
PCK
40
2
39
J4
1
to Main unit J6
J3
From HM-132
DATAS
DATAS
+
DATAM
DATAM
+
8
J1
1
to DSC terminal DS-100
GND
GND
GND
KEYM
HANG
5
1
GND
GND
GND
ICF3
SP
to Front unit SP1
SP+
to Front unit SP1