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SECTION 11
VOLTAGE DIAGRAMS
11-1 FRONT UNIT
VOLTAGE LINE
Explanatory notes
RX LINE
TX LINE
J2
DIM
DAST
OPT3
OPT2
OPT1
PTTO
PTTI
REM
SCK
SI
SO
CIRQ
CCS
MIC
EPTT
NC
NC
NC
BEEP
PWON
8V
GND
GND
TONE
TENC
NOIS
EXOE
EXST
UNLK
PLST
CDEC
SDEC
OV12
RSSI
LVIN
TEMP
BATV
5V
CPU5
AFO
to
MAIN
unit J2
IC1
HD64F3687
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
P86/AN6
P87/AN7
AVCC
X2
X1
VCL
RES
TEST
VSS
OSC2
OSC1
VCC
P50/WKP0
P51/WKP1
P34
P35
P36
P37
P52/WKP2
P53/WKP3
P54/WKP4
P55/WKP5/ADTRG
P10/TMOW
P11/PWM
P12
P56/SDA
P57/SCL
P74/TMRIV
P75/TMCIV
P76/TMOV
P24
P63/FTI0D0
P62/FTI0C0
P61/FTI0B0
NMI
P60/FTI0A0
P64/FTI0A1
P65/FTI0B1
P66/FTI0C1
P67/FTI0D1
P85
P86
P87
P20/SCK3
P21/RXD
P22/TXD
P23
P70/SCK3_2
P71/RXD_2
P72/TXD_2
P14/IRQ0
P15/IRQ1/TMIB1
P16/IRQ2
P17/IRQ3/TRGV
P33
P32
P31
P30
P83/AN3
P82/AN2
P81/AN1
P80/AN0
P84/AN4
P85/AN5
C74
47p
C50
47p
C38
47p
C54
47p
L2 1.0
µ
PWON
CPU5V
CPU5V
CPU5V
BEEP
DIM
TONE
DAST
TENC
OPT3
NOIS
OPT2
EXOE
OPT1
EXST
PTT
UNLK
PTTI
PLST
REM
CDEC
SCK
SDEC
SI
OV12
SO
RSSI
CIRQ
LVIN
CCS
TEMP
MIC
BATV
EPTT
KS0
KS1
R56
1k
UNLK
KR0
CENC2
CENC1
CENC0
KR1
KR2
SCK
SO
8
7
6
5
1
2
3
4
VCC
WP
SCL
SDA
A0
A1
A2
VSS
IC3
HN58X2464TI
R58
10k
R68
10k
R54
1k
R79
1k
SI
OPT2
OPT1
OPT3
PWON
LCS
NMI
EXOE
EXST
R52
1k
R50
1k
POSW
DIM
NOIS
CIRQ
CCS
PTT
EPTT
AFVI
HANG
CDEC
SDEC
OV12
RSSI
LVIN
CLO
CLI
D5
HANG
MA2S111
CP1
C35 0.1
TEMP
BATV
RES
R51 100k
SENC0
SENC1
R48
12k
R49
12k
D4
MA77
C34
470p
R47
12k
C33
68p
C32
15p
X1
CR-520
R45
10
C31
22p
C78
0.001
R46
1M
CD
NC
OUT
VDD
VSS
R67
10k
C30
0.027
IC2
S-80942CNMC-G9C
LSO
LSCK
DUSE
CPU5V
CPU5V
CPU5V
DUSE
Q3
DTC144EU
C19
0.1
R29
18k
C82
47p
R28
4.7k
14
+
-
12
13
IC5
NJM12902V
TENC
C17
820p
C85
47p
C16
0.1
R27
47k
R26
47k
C15
0.018
R24
47k
R25
22k
R22 22k
R21 56k
R20 180k
C14
0.001
CENC0
CPU5V
CPU5V
CPU5V
5V
5V
8V
5V
8V
CENC1
R65 1k
REM
CENC2
7
IC5
NJM12902V
6
5
-
+
TONE
BEEP
C24
68p
C69
47p
R39
68k
C23
0.0082
R38
68k
1
IC5
NJM12902V
2
3
-
+
C21
0.0056
C22
180p
R37
68k
SENC3
R33 22k
R36
68k
C20
0.0027
R35
68k
R34
22k
R32 47k
SENC2
SENC1
R31 100k
SENC0
R30 220k
C29
10
11
GND
V+
4
IC5
NJM12902V
C28
0.1
-
+
9
10
IC5
NJM12902V
8
C84
47p
R44 150k
C27 270p
C76
0.1
C41
0.001
R43
33k
R42
39k
C25
0.01
C26
0.1
R41
10k
R40
47k
R81
100k
R80
100k
J1
8V
8V
CLO
AFO
PTT
MICE
MIC
GND
CLI
C81
0.001
R16 1k
L1 10
µ
R76 1k
C7
47p
C8
0.001
C9
0.001
C10
0.001
C11
47p
C12
0.001
R19
100k
D3
MA8056
CLO
AFO
AFO
AFO
AFO
AFO
MIC
MIC
CLI
R18
100k
5V
8V
8V
D2
MA8056
PTTI
D1
MA8056
BEEP
KR2
KR1
KR0
KS1
KS0
POSW
R59
RV-150
5V
C1 680p
C3 47p
C4 47p
C5 47p
C79 0.1
DS11
L2-0607TAY
C2 47p
C80 0.1
R78 47k
R60 100k
R75 10k
COM2
COM1
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG1
SEG2
SEG3
COM3
COM4
CPU5V
CPU5V
EXOE
LCS
LSCK
LSO
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
EXOE
LCS
LSCK
LSO
COM1
COM2
COM3
COM4
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
COM1
COM2
COM3
COM4
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
R14
10k
AFVI
5V
CPU5V
CPU5V
CPU5V
5V
S1
S2
C6 47p
S3
C37 47p
S4
S7
S6
S5
LIGT1
Q1
2SC4116
R11
390
R12
2.7k
R74
10k
R73
10k
R86
100k
R85
100k
R87
100k
R88
100k
R89
100k
R84 100k
R82 100k
R83 100k
CPU5V
Q2
DTC114TU
Q5
DTC114TU
5V
5V
FRONT UNIT
DS1-DS9
SML-311YT
R7
180
DS3
DS2
DS1
LIGT2
DS6
DS5
DS4
R8
180
R9
470
DS9
DS8
DS7
to
mic
Jack
C77
0.047
R77 1.5k
R15 1k
5
4
1
2
3
C75
0.1
SENC3
SENC2
PLST
DAST
R55
1k
BEEP
R57
1M
C36
0.1
R23
47k
C83
47p
R90
390k
IC6
LC75834W
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
COM3
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
COM4
VDD
VLCD
VLCD1
VLCD2
VSS
OSC
INH
CE
CL
DI
P1/S1
P2/S2
P3/S3
P4/S4
P5/S5
P6/S6
P7/S7
P8/S8
S9
S10
S11
S12
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
COM1
COM2
J3
NC
OPT2
OPT2
RES
RES
NMI
GND
GND
GND
CPU5V
CPU5V
P86
P87
OPT1
PWON
NMI
OPT1
PWON
GND
GND
Dim ON: 6.2V
OFF: 7.2V
Dim OFF: 0V
ON : 5V
LIGHT ON: 5V
OFF: 0V
TX: 0V
RX: 4.9V
7.9V
19.7 MHz
2.1Vp-p
5.0V
CTCSS : 0V
DTCS : 5V
5.0V
MEASUREMENT CONDITIONS
VOLTMETER
Amplitude(Oscilloscope) : 100 MHz
11 - 1