7 - 1
SECTION 7
VOLTAGE DIAGRAMS
CP7
CP5
CP6
CP8
LMV321IDCK
IC2
1
2
3
4
5
2.2 MSVA
C11
B8B-ZR-SM4-TF
J1
1
2
3
4
5
6
7
8
9
10
0.01
C4
470P
C1
470P
C13
470P
C14
470P
C15
470P
C16
470P
C17
470P
C18
1
C20
47P
C5
100
R2
33K
R4
33K
R9
0
R14
MMZ1608Y102BT
EP1
470P
C21
0.
1
C19
1
C10
33K
R3
CP11
CP12
AM-627P
MC 1
100
R17
0
R13
10
C8
0.
1
C6
1
C9
10
C3
ERTJ0EP473J
R19
0.068
C2
S-812C36AMC
IC1
1
GND
2
VI
N
3
VOUT
4
NC
5
NC
47K
R7
3.3K
R1
10K
R6
680
R8
470K
R20
100
R5
0.0022
C7
470P
C23
TC7S66FU
IC3
1 2 3
4
5
10K
R21
0
R22
150K
R16
UNR9113J
Q3
0.01
C24
0
R23
SKQJLBA010
S1
MICROPHONE
MIC
SW
PTT
XRXD
SP+
Vcc
GND
PTT
D_GND
SP-
To SPEAKER
(HM-174)
(HM-169)
(HM-169)
(HM-174)
(HM-169)
(HM-169)
(HM-174)
(HM-174)
(HM-174)
(#04)
(HM-174)
ON
T OFF
2.81V
3.6V
1.79V
1.79V
0V
0V
3.56V
3.56V
@3.3V
• MAIN-A UNIT (for [HM-169], [HM-174])