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12 - 1
SECTION 12 VOLTAGE DIAGRAMS
12-1 RC-26 and HM-146
VOLTAGE LINE
Explanatory notes
TX LINE
RX LINE
FH13
10V
8V
9V
FH13
FH13
FH13
FH13
FH13
FH13
FH13
J8802
AFIN
5V
MCE
MC
FE1
FE1
8V
8V
FH13
FH13
FH13
10V
UDC
TONE
TONE
0.001
C8246
input impedance:10MΩ
range:20V
unit:V
Digital tester
(TX):no modulation
ANT(RX):no input
mode:J3E(USB)
frequency:13.8 MHz
MESUREMENT CONDITIONS
8V
8V
8V
10V 10V 10V 10V
10V 10V
8V 8V 8V
8V
5V
5V
5V 5V 5V
5V
5V 5V 5V
5V
5V
5V
5V
5V 5V 5V
HF50ACC322513-B
L8206
RX: 1.91V
RX: 1.97V
RX: 4.73V
0.1
C8204
REAR BOARD (RC-26)
RX: 6.42V
RX: 4.95V
47k
R8204
0.1
C8201
100
C8202
4.7
C8287
RX: 7.83V
3.3k
R8275
RX: 9.11V
RX: 12.90V
DISPLAY BOARD (RC-26)MIC UNIT (HM-146)
0.01
C4
RX: 6.28V
RX: 5.5V
RX: 5.5V
when ten-key is p shed
0V
2.8V
3.9V
0.0047
C8801
J8801
R8803 33
R8802 33
R8801 33
GND
GND
GND
AFO
AFO
AFIN
AFIN
AFIN
FH13
FH13
AFIN
GND
GND
GND
AFO
AFO
AFIN
AFIN
AFIN
FH13
FH13
J8702
KUB2823-011500
MC1
0.82µ
L5
47p
C29
47p
C28
0.33
C16
10
R18
0.001
C15
2.2k
R14
1
C13
100
R13
MA8062
D1
1
C3
0.01
C21
47p
C19
0.001
C20
220
R1
1
C17
5.6k
R15
0.1
C18
3.3k
R17
330
R36
100
R35
DTA114EU
Q1
DOWN
UP
LOCK
PTT
SKHHLM
S4
470
R22
SKHHLM
S3
SSSS81560A
S2
JPM1990-2013R
S1
C25 0.001
C24 0.001
C26 0.001
C22 0.001
47k
R31
47k
R30
47k
R29
47k
R28
1k
R23
3.3k
R19
3.3k
R20
47k
R27
SML-311YT
DS2
SML-311YT
DS1
SML-311YT
DS4
SML-311YT
DS3
47k
R24
47k
R25
47k
R26
7
4
1
0
8
5
2
CALL
MUTE
SCAN
TUNE
9
6
3
20p
C2
20p
C1
PRBC 3.58AR
X1
LC7366NM
IC1
TONE
CD
NC
R1
R2
R3
R4
NC
MUTE
C4
OSC0
OSC1
NC
VSS
C3
C2
C1
NC
XMIT
VDD
20
19
18
17
16
15
14
13
12
1110
9
8
7
6
5
4
3
2
1
TONE
GND
MIC
MICE
PTT
DIM
UDC
8V
TONE
GND
MIC
MICE
PTT
DIM
UDC
8V
J1
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
RD
WR
RS
CS
RES
470
R8708
680
R8707
82
R8706
FZMD
FZRS
FZTX
FZRX
5V
GND
GND
GND
NC
FZMD
NC
FZRS
FZTX
FZRX
FZ5V
J8202
LTXD
LRXD
AFIN
FE1
MI
C8300 47p
C8299 47p
C8298 0.0047
C8295 0.0047
C8297 0.0047
C8294 100p
L8204 HF50ACC322513-B
L8290 HF50ACC322513-B
L8205 HF50ACC322513-B
EP8295
EP8294
EP8292
EP8293
MAIN (3) unit J2051
to IC-F7000
GND
RXD
TXD
H13V
FAFG
FAF
GND
FMODG
FMOD
J8201
1M
L8291
TEN-KEY
CL-170Y-CD
DS8308
CL-170Y-CD
DS8306
CL-170Y-CD
DS8309
CL-170Y-CD
DS8311
I/O-CALL
/
CL-170Y-CD
DS8313
CL-170Y-CD
DS8312
3.9k
R8302
330
R8303
CL-170Y-CD
DS8305
CL-170Y-CD
DS8314
2SD1619
Q8301
100
R8313
LCD
3.9k
R8306
120
R8307
FY1112H
DS8303
FY1112H
DS8304
2SD1619
Q8303
2SD1619
Q8300
FY1112H
DS8300
FY1112H
DS8301
FY1112H
DS8302
3.9k
R8300
120
R8301
470
R8242
ERJ3GE-JPW
R8244
7
5
6
+
-
1M
R8241
47k
R8247
1k
R8246
VOL
COM
B
A
EVEHE1F2524B
S8201
R8221 1k
R8220 1k
MP
MK
R8225 47k
R8226 47k
R8227 47k
R8228 47k
C8214 0.0047
C8213 0.0047
R8201 47k
ETXD
ERXD
ERXD
ETXD
R8213 47k
R8212 47k
R8211 47k
RD
WR
CS
4
5
0.1
C8208
100k
R8209
56k
R8208
0.01
C8209
NC
CD
VSS
VDD
OUT
S-80942CNMC-G9C
IC8202
3
2
1
J8701
C8226 0.0047
C8221 0.0047
C8222 0.0047
C8225 0.0047
L8202 10µ
MC
L8203 10µ
MCE
1SS355
D8204
47k
R8224
MBKS
MP
MCR10-JPW
R8219
MK
DTC114EU
Q8302
ERJ3GE-JPW
R8214
1SS355
D8221
2.2k
R8223
10
C8244
EFOP3584E5
X8212
12p
C8216
12p
C8215
0.1
C8229
47k
R8222
DDPD
DDSI
DDAC
DDSD
0.1
C8227
LC73872M
IC8205
LOAD
SD
ACK
STD
EST
NC
VDD
VSS
NC
OSCI
OSCO
PD
NC
INPUT
8
9
10
11
12
13
14
7
6
5
4
3
2
1
1SS355
D8250
33k
R8254
6.8k
R8253
18k
R8251
47k
R8255
XP4601
Q8251
321
456
R8250 100k
R8252 100k
0.01
C8250
5V
8V
TC7W04F
IC8250
5
6
7
81
2
4
3
47
C8301
AN8009M
IC8301
0.1
C8302
G
IO
0.1
C8303
47
C8304
10
R8290
47
C8290
TA7805F
IC8290
0.1
C8291
G
IO
0.1
C8292
47
C8293
47
C8310
0.1
C8311
1
3
2
TA78L08F
IC8310
G
IO
0.1
C8312
47
C8313
1000µ
L8286
0.0047
C8289
4
8
TS822ID
IC8280
GND
V+
0.0047
C8281
22
C8280
DTC114EU
Q8282
DTC114EU
Q8312
DTC114EU
Q8701
DTA114EU
Q8311
10
C8285
68k
R8274
120k
R8282
MI
FE1
DA221
D8280
47
C8286
1k
R8276
470
R8285
TS522ID
IC8280
56k
R8284
1
3
2
+
-
0.0047
C8288
ERJ3GE-JPW
R8273
ERJ3GE-JPW
R8272
10
C8283
1k
R8283
100k
R8281
12k
R8278
22k
R8279
2SC4116
Q8281
10
C8282
10k
R8287
1.5k
R8289
10k
R8280
2.2
C8284
0.1
C8203
LTXD
LRXD
FZMD
FZRS
FZRX
FZTX
MBKS
DDSD
DDAC
DDSI
DDPD
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
RS
RES
47k
R8215
R8216 47k
R8203 47k
R8202 47k
10k
R8205
1k
R8240
1k
R8239
47k
R8207
47k
R8206
DA221
D8201
DA221
D8203
10µ
L8201
12p
C8207
12p
C8206
CR-636A
X8211
R8210 47k
C8220 0.47
0.01
C8205
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
GND
GND
RD
WR
RS
CS
RES
CL1
GND
GND
5V
9V
J8205
47
48
49
95
96
254
255
98
256
99
257
305
97
306
304
J8920
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
GND
GND
RD
WR
RS
CS
RES
CL1
GND
GND
5V
9V
LDB7
LDB6
LDB5
LDB4
LDB3
LDB2
LDB1
LDB0
LRD
LWR
LRS
LCS
CONNECT BOARD (RC-26)
LRES
HLC7805-018700
DS8920
HD66421TBO
IC8940
COM1
COM2
COM3
COM49
COM50
SEG1
SEG2
SEG3
SEG158
SEG159
SEG160
COM51
COM98
COM99
COM100
GND6
VLCD4
VCC6
GND5
VCC5
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
GND4
VCC4
RD
WR
RS
CS
RES
M/S
M
FLM
CL1
DCON
CO
OSC
OSC2
OSC1
VCC3
GND3
GND2
VCC2
VLCD3
VLCD2
IREFP
IREFM
GREF
V1O
V2O
V3O
V4O
V5O
VCC1
VLCD1
GND1
LCD
L8921 10µ
L8920 10µ
LDB7
LDB6
LDB5
LDB4
LDB3
LDB2
LDB1
LDB0
LRD
LWR
LRS
LCS
LRES
0.1
C8937
1.8M
R8946
1.8M
R8941
C8936 1
C8935 1
C8934 1
C8933 1
C8932 1
C8931 0.1
C8930 0.1
47k
R8943
47k
R8944
2.2M
R8942
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CP8940
CP8939
CP8935
CP8934
CP8933
CP8932
CP8931
CP8921
CP8922
CP8923
CP8924
CP8925
CP8926
CP8927
CP8928
CP8941
P42/TMRI0/SCK2
P43/TMCI1
P44/TMO1
P45/TMRI1
P46/PWX0
P47/PWX1
VCC1
P27/A15
P26/A14
P25/A13
P24/A12
P23/A11
P22/A10
P21/A9
P20/A8
VSS
P17/A17
P16/A6
P15/A5
P14/A4
A3/P13
A2/P12
A1/P11
A0/P10
D0/P30
D1/P31
D2/P32
D3/P33
D4/P34
D5/P35
D6/P36
D7/P37
VSS
P80
P81
P82
P83
TXD1/IRQ3/P84
RXD1/IRQ4/P85
SCK1/IRQ5/P86
P41/TMO0/RXD2/IRRXD
P40/TMCI0/TXD2/IRTXD
AVSS
P77/AN7/DA1
P76/AN6/DA0
P75/AN5
P74/AN4
P73/AN3
P72/AN2
P71/AN1
P70/AN0
AVCC
P67/CIN7/KIN7/IRQ7
P66/FTOB/CIN6/KIN6/IRQ6
P65/FTID/CIN5/KIN5
P64/FTIC/CIN4/KIN4
P63/FTIB/CIN3/KIN3
P62/FTIA/CIN2/KIN2/TMIY
P61/FTOA/CIN1/KIN1
P60/FTCI/CIN0/KIN0
ADTRG/IRQ2/P90
IRQ1/P91
IRQ0/P92
RD/P93
WR/P94
IOS/AS/P95
EXCL/P96
WAIT/P97
VSS
TXD0/P50
RXD0/P51
SCK0/P52
VCC2(VCL)
STBY
NMI
MD0
MD1
EXTAL
XTAL
RES
HD64F2134AFA20
IC8201
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
41
1