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F
TX UNIT (LED) (X56-3150-11) (B/3)
Q923-926
DC SWITCH
50MPU
SHIFT REGISTER
BU4094BCFV
1
STRB
2
DATA
3
CLK
4
Q1
5
Q2
6
Q3
7
Q4
8
VSS
STB
SR_CLK
33AUD
VOLUME_IN
33MPU
SB
C931
MIC
1u
IC926
NJM2732V
1
AoUTPUT
C930
R950
R942
2
A-INPUT
BoUTPUT
1u
8.2k
0
R946
3
A+INPUT
B-INPUT
10k
4
GND
B+INPUT
Q931,932
AUDIO LEVEL
LIMITER
Q931
2SC4116(Y)F
R944
1k
HSM88AS-E
Q932
2SA1586(Y)F
R945
1k
HSM88AS-E
MIG
D933,934
AUDIO LEVEL
LIMITER
D935,936
50MPU
SURGE
PROTECTION
SCM_EN
PTT_TXD_SCM
HooK_RXD_SCM
G
SCHEMATIC DIAGRAM
IC924
16
VDD
15
OE
14
Q5
13
Q6
12
Q7
11
Q8
10
Q'S
9
QS
OP AMP
8
V+
7
6
5
C936
CN923
0.1u
1
VoLUME_iN
D933
2
33MPU
3
GND
4
33AUD
C935
5
SB
0.1u
6
SCM_EN
D934
7
GND
8
PTT_TXD_SCM
9
HooK_RXD_SCM
10
MiG
11
MiC
H
I
Q927-930
DC SWITCH
50MPU
SHIFT REGISTER
IC925
BU4094BCFV
1
16
STRB
VDD
2
15
DATA
OE
3
14
CLK
Q5
4
13
Q1
Q6
5
12
Q2
Q7
6
11
Q3
Q8
7
10
Q4
Q'S
8
9
VSS
QS
FINAL UNIT (MIC SECTION)
(X45-3870-11) (D/4)
R906
R905
0
0
R909
0
CN905
1
R911
C915
2
0
100p
3
R912
4
0
5
6
7
8
9
10
11
J
NXR-901
Note : The compo-
nents marked with
•
a dot (
) are parts of
layer 1.
VR902
C905
R900
R31-0668-15
10u
0
J901
R902
0
NC
1
SB
2
GND
3
R901
PTT_TXD_SCM
4
1.8k
MIG
5
MIC
6
R910
1.8k
HOOK_RXD_SCM
7
R914
SCM_EN
8
2.2k
L900
D902
SURGE PROTECTION
X56-315 (B/3) 2/2, X45-387 (D/4) 1/1
1
2
3
4
5
6
7
115
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