Icom IC-V82 Service Manual page 10

Oct. 2010
SECTION 11 VOLTAGE DIAGRAM
• MAIN UNIT
LIGHT ON: 3.40V
OFF: 4.62V
VCC
DS2
DET
LNJ310M6URA
R500
330k
SW5V
DS3
LNJ310M6URA
Q25
2SC4116
LEDC
Q38
R204
DRC9144E
10k
R205
R155
100 4.7k
CPU5
R502
LIGHT ON: 5.00V
1k
OFF: 0.00V
BATT
C531
R501
0.01
C197
240k
0.1
R182
R148
47k
100k
R494
IC21
1k
C232
BD5242G R181
100k 0.1
RESET
C144
0.001
C527
REMO
0.001
SD
CTCIN
C526 C525 C524
BATT
C230 0.001 0.001
0.001
DET
0.023
LEDC
C296
PTT PTT
470p
R398
C424
MICS MICS
100k
0.01
AN AN
DIGI DIGI
D56
C297 UN_SEC UN_SEC
HVC376BTRF
0.01
CSHIFT CSHIFT
R103 12k
CNVSS CNVSS
R475 47k
RESET
RESET
C195
56p
CPU5
R102
10
R474
X2 PWRSW
47k
CR-793 NOIS
(9.8304 MHz) INT0
C515 C514
R246
R245
2.2
0.1 10k
100k
CLIN
OPSO
R101
SI
C193 1M C194
SECRET
0.5p 8p
BUSY
R346
IC7
100k
C245
S-24C64CI-T8T1U3
0.01
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA R225
100k
R228
10k
7.40V
PWRSW
CPU5
VCC
BATT
IC12
C400 C305
R331 C282 C283
S-812C50AMC
0.0022
470p 10k 0.001 0.0022
GND
4
5
Q57 Q55
5.06V
2SB1132
XP1501
SW5V
C380 C379
4.40V
22p 0.001
Q56
DRC9144E
R332
6.8k
5.00V
R335
1M
D39
1SS400
R330
10k
C376
C377 C378
0.001 C385 R334 R333
22 0.1
0.1 1M 1M
S801
UP
E
DN
CTCSS
R491 R195 R194
220k 56k 56k
R224
39k
R193
R196
56k
10k
C216
0.0039
C219
R227
0.033
CPU5
3.9k
C199
0.1
R492
R493
1k
1k
LVIN 1
P96/AN6 SEG19/P103
2
P95/AN5
SEG20/P104
3
P94/AN4 SEG21/P105
4
P93/AN3 SEG22/P106
5
P92/AN2 SEG23/P107
6
P91/AN1 SEG24/P110
7
P90/AN0 SEG25/P111
8
P87/TA7IN SEG26/P112
9
P86/TA7OUT SEG27/P113
10
P85/TA6IN SEG28/P114
11
P84/TA6OUT
SEG29/P115
12
P83/TA5IN SEG30/P116
13
P82/TA5OUT SEG31/P117
14
P81/TA4IN/INT5 SEG32/P120
15 IC8
P80/TA4OUT/INT5 SEG33/P121
16
CNVSS M30220MA-136RP
17
XCIN SEG34/P122
18
XCOUT
19
RESET SEG35/P123
20
XOUT SEG36/P124
21
VSS SEG37/P125
22
XIN SEG38/P126
23
VCC SEG39/P127
24
P77/NMI SEG40/P00
25
P76/INT2 SEG41/P01
26
P75/INT1 SEG42/P02
27
P74/INT0 SEG43/P03
28
P73/CTS2/RTS2 SEG44/P04
29
P72/CLK2 SEG45/P05
30
P71/RXD2/SCL SEG46/P06
31
P70/TXD2/SDA
SEG47/P07
32
P67/TXD1 P10/KI0
33
P66/RXD1 P11/KI1
34
P65/CLK1 P12/KI2
35
P64/CTS1/RTS1/C P13/KI3
36
P63/TXD0 P14/KI4
CLOUT
PWRSW
CPU5
VCC
C173
100
3 CPU5
NC VOUT
R240
2
VIN
1k
1
C381
NC GND
10
SW5V
PWR
S125
UP S104 DN S105 MON S124 D40 D45
1SS400 1SS400
BAND4
D69
A S108 B S109 C S110 D S111 D41 D46
1SS400
1SS400 1SS400
BAND3
D68
1 S112 2 S113 3 S114 # S115 D42 D47
1SS400
1SS400 1SS400
BAND2
D67
* D43 D48
4 S116 5 S117 6 S118 S119
1SS400
1SS400 1SS400
BAND1
S123 D44 D49
7 S120 8 S121 9 S122 0 D66
1SS400 1SS400
1SS400
DICK
DIUD
7
VCC
CPU5
DET
CTCSS
SW5V
VCC
CPU5
DET
CTCSS
SW5V
DS4
LCD A01B001X
SEG25 29
S25
SEG24 28
S24
SEG23 27
S23
SEG22 26
S22
SEG21 25
S21
SEG20 24
S20
SEG19 23
S19
22
SEG18
S18
SEG17 21
S17
SEG16 20
S16
SEG15 19
S15 MAIN UNIT
SEG14 18
S14
SEG13 17
S13
SEG12 16
S12
SEG11 15
S11
SEG10 14
S10
13 Explanatory notes
SEG9
S9
SEG8 12
S8
11
SEG7 VOLTAGE LINE
S7
SEG6 10
S6
SEG5 9 TX LINE
S5
SEG4 8
S4
SEG3 7
S3 RX LINE
SEG2 6
108 SEG20 S2
SEG1 5
107 SEG21 S1
COMMON LINE
COM1 4
106 SEG22 C1
COM2 3
105 SEG23 C2
2
COM3
104 SEG24 C3
COM4 1
103 SEG25 C4
102
101
100
99
98 DIUD
97 DICK
96
95
R473
94
ERJ2GE-JPW
93
VSS
PS5C
92
91
VCC
90 KS0
KS1
89
88 KS2
87 KS3
86 KS4
85 IR1
84 IR0
83 TXC
R5C
82
81 DIGI_W
T5C
80
79 EMPHASIS
78 UNLK
77 PWRON
76 KR0
75 KR1
74 KR2
73 KR3
C425
0.01
VCC
SW5V
PWRON
J5
VCC
30
1 PTTI
GND
29
2
PTTO
+5V
28
3 MICOUT
VOUT
27
4
MCIN
26
5
SW5V
232TX
EP6
25
6
BUSY
232RX
24
7
EP7
RX_MUTE
To
23
8 SICO
OPTIONAL
unit
22
9 OPT1
AFOUT
21
10 OPT2
REM
20
11 OPT3
CCS
19
12
GND
18 R477 10k
13 OPV3
OPSO
17
14 OPV2
SI R476 10k
16
15 OPV1
OPSCK R362 10k
KS4
J7
EP10
KS3
232RX
KS2
KS1
KS0
DATA
EP9
232TX
KR3
KR2
KR1 EP11
KR0
DET
CTCSS
SW5V
R369
C412
1M
0.01
Q64
2SA1576A
R377 R370
180k
470k
IC23
LMV321IDCKR
5
1
4
R378
3
47k
2
IC16
SN74AHC2G53HDCTR
R515 R380
JPW 470k
8 1
VCC COM
7 2
Y0 INH R379
6 3
Y1 GND
100k
5 4
A GND R506
47k
DTCS
R507 CTCSS
100k
C535
5
1 IC15
R511 0.1
4
180k CD4066BPWR
3
1 14
I/O1 VDD
2 R509 2 13
O/I1 CONT1 C416
470k 3 12
O/I2 CONT4 0.001
4 11
I/O2 I/O4
IC25 5 10
CONT2 O/I4
R510 R508 6 9
LMV321IDCKR
CONT3 O/I3
100k
47k 7 8
VSS I/O3
R384
33k
MCIN
MICOUT
PTTO R386 47k
+5V
OPV3 R479 100k
OPV2 R478 100k
R385
R164 100k
OPV1 47k
OPT1
R482 1M
OPT2
R483 1M
OPT3
R484 1M VCC
DIGIT ON: 5.00V
C405
OFF: 0.00V
OPT ON: 5.00V 0.001
Q61
OFF: 0.00V
2SA1576
Q62
2SC4116
+5V R381
R364
10k 47k
D51
R363
C401 C402 1SS400
3.3k
0.01 0.1
VOUT
R382 47k
C404
IC22
10
S-812C50BMC
R136 100
AFOUT
RX_MUTE
R485 1M
SW5V SW5V
MIC
C517 C415
R480 C414
0.001
0.001 1
DET 100
IC14
IC13
CD4066BPWR
CD4066BPWR
1 14 1 14
I/O1 VDD I/O1 VDD
2 13 2 13
O/I1 CONT1
O/I1 CONT1
3 12 3
12
O/I2 CONT4 O/I2 CONT4
4 11 4 11
I/O2 I/O4
I/O2 I/O4
5 10 5 10
CONT2 O/I4 CONT2 O/I4
6 9 6 9
CONT3 O/I3 CONT3 O/I3
7 8 7 8
I/O3
VSS I/O3 VSS
PTTI
C409
R373 R374
1 10k 680
R371
C410
1k
0.1 IC17
AN6123MS
BUSY
3 2
INPUT DET
4
C411 GND
5 1
R372 0.1
OUTPUT VCC
5.6k R375 C406
1M 10
Q63
OPT1
2SA1576A
R376
OPT2
100
OPT3
CCS
R367
1M
C407 C408
OPV3
10 0.001
OPSO
OPV2
R368
SI 220k
OPV1
OPSCK THROUGH
SICO
PLLSW
PLLSW
VCC
CPU5
PSVCO
VCC
SW5V
SW5V
C413
0.001
A
REFMV
DTCS
CTCSS
MODIN
MODIN
DIGI
+5V
D5VC
O/I4
RX_MUTE
O/I3
OP_PS
CPU5
CPU5
MIC
MIC
DET
I/O1
AN
SECRET
THROUGH
UN_SEC
ALC
DI_SEC DET
SICO
B
+5V
+5V
23