Icom IC-80AD Service Manual page 45

SECTION 10. VOLTAGE DIAGRAM
LOGIC UNIT (1/2)
SEG10
S33 S16
SEG27 33 16
SEG9
S34 S15
SEG28 34 15
SEG8
S35 S14
SEG29 35 14
SEG7
S36 S13
SEG30 36 13
SEG6
S37 P12/S12
SEG31
37 12 SEG5
S38 P11/S11
SEG32
38 11 SEG4
S39 P10/S10
SEG33
39 10 SEG3
S40 P9/S9
SEG34
40 9 SEG2
S41 P8/S8
SEG35 LC75827W
41 8 SEG1
S42 P7/S7
SEG36 IC603
42 7
S43 P6/S6
SEG37
43 6
S44 P5/S5
SEG38
44 5
S45 P4/S4
SEG39
45 4
S46 P3/S3
SEG40
46 3 CONT1
S47 P2/S2
SEG41
47 2 CONT0
S48 P1/S1
SEG42
48 1
LDI
LCL
LCE
LINH
R621
CONT1
R620
10K C606
68K
0.001
CONT0
R619
R616
R615
47K
R622
39K
120K
47K
C607 C610
R617
C608
0.1 0.1
47K
0.1 C609
0.1
R624
0
R618
47K
+3V
R11
12K
R26 100
C2
0.1 D13
10
MA2S077G0
C15
R9
X1
27P
C16 R14
0.1 12K CR-864
R10
1M
C14
C13
12P
18P
R68
10K
D50
R70
CLONE
18K
Q53 MA2S7280G
2SA1832
Q50
2SC4738
R71
47K
R69
12K
R50
1k
MA2S1110G
IC 3
1 6
1A 1Y
J2 2 5
GND VCC
SEG1 3 4
1 2A 2Y
SEG2
2
SEG3 SN74LVC2GU04DCKR
3
SEG4
4
SEG5
5
SEG6
R52
6
SEG7 100K
7
SEG8
8
SEG9
9
SEG10
10
SEG11 C50
11
SEG12 0.1
12
SEG13
13
SEG14
14
SEG15
15
SEG16
16
SEG17
17
SEG18
18
SEG19
19
SEG20
20
SEG21
21
SEG22
22
SEG23
23
SEG24
24
SEG25
25
SEG26
26
SEG27
27
SEG28
28
SEG29
29
SEG30
30
SEG31
31
SEG32
32
SEG33
33
SEG34
34
SEG35
35
SEG36
36
SEG37
37
SEG38
38
SEG39
39
SEG40
40
SEG41
41
SEG42
42
SEG43
43
SEG44
44
COM4
45
COM3
46
COM2
47
COM1
48
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CPU3V
C3
0.1 C32
47
KS0
KS1 61
KS2 62
KS3 63
I0 64
I1 65
I2 66
I3 67
I OSTB 68
69
I OSTB1
70
I OEN
71
D ASTB1
72
PLLSTB
73
DATA
74
CK
IC 1
75
76
RESET HD64F2364VTE
77
78
UNLK
79
80
81
82
83
RX232 84
TX232 85
86
87
CLSFT 88
PPS 89
90
R4
180
C1
0.1
C4
0.1
D51
CLIN
CLOUT
R51
100K
R21
4.7k
S3
S2 S4
MENU
S6 S9
S5 S7 S8
VFO
1 2 3 *
MA6S121
S10 S11 S12 S13 S14
4 5 6 0 MR
S15 S16 S17 S18 S19
7 CALL
8 9 #
10 - 1
SHORTLAND
R22
0
C33
0.1
C103
10
W DTOVF
R12
C12 10
R20
0.1
4.7K
R28
0
30
29 TXCK PCON
28 RXCK
27 BTDET
26
25
24
23
22
DASTB2 ECK
21
PTT ESIO
20
19
DVC
18
17
AMBEC
16
TXDT
15
RXDT
14
DCEL
13
ACQ
12
MIC2
11
MIC1
10
BATT TEMP
9
8 AFON
7 MICC
6 MUTE
5 AFMUTE
4 PCON
3
2 MD2
1
R16
12K
R1
TTEMP CPUHV
TX-V
RSSI
CTONE
R2
1k RTONE
TEMP
VI N
0.001
0.001 0.001 C11
1k LLIGHT
C10 C7
C5 C6 C9 C8 0.1
47K BTDET
0.001
R8
C58
0.001 0.001
0.001
S1
POWER
CHGH
KR4
KR3
KR2
KR1
KR0
I3
I2
I0
CHGC
KS3
D1
KS2 TXLED
M A132WK
MA2S1110G
D6
BLED
D4
KS1
MA2S1110G
D2
KLIGHT
KS0
MMZ1005Y102CT
IC52 MAX3221IPWR
EP50
16
FORCEOFF EN
15
VCC C1+
14
C57
GND V+
0.1 13
COUT C1-
12
J1
FORCEON C2+
11
1 2 DIN C2-
10
3 4 INVALID V-
9
5 6 R63 ROUT RIN
100
CP502 7 8
9 1 0
11 12
13 14
15 16
6.80V MA2SD100G
RSQ035P03TR
D100
IC100 Q101
3.31V S-812C33AUA 6 1
5 2
O I
0.56
RB161VA
G R102
4 3 IC102
C102
C100 1
0.1
R101 EXT
0.1
2
LSEN VOUT/FB
3
VIN CC/GAIN
0.56 4
CE/SS
R100
C108
XC9201D09AKRN
1
IC101 C109
C118
100K
1 5 22 R107
0.1
OUT CD
15K
2
VDD
3 4
VSS NC
C101
S-80929CNMC
0.027
0.001
C52
R54
R53 IC51
4.7K 47K 8 1
VCC A0
7 2
WP A1
6 3
SCL A2
5 4
SDA VSS
Q102
24LC512T
UNR9113G0
Q103
UNR9213G0
R66
NTCG10
R136
R67
IC103
47K 22
C114
1 5
VIN VOUT
2
C116 VSS
C117 3 4
1 CE NC
0.001
XC6204B332M
MMZ1005Y102CT D125
L100
EP101 RB551V
100U IC125
C104
3 LX
C105
22
2 VOUT
22
DC13.5V:0.07V
VSS
DC7.4V:3.29V 1
XC6371A551PR
R55
47K
R56
2SD2216GS
1k
MA2S1110G
C53 Q51
D53 D54
C54 R58
0.001
0.001
10K
MAZ8082GM
R57 C55
C56
0.001
47K 0.001
0.001
C150
R152
0.001 R151
R153 12
R150
15
Q52 12
12
2SD2216GS
R60 11.91V
100K
11.29V Q150
3.24V 0.38V 1k 2SA1588
UNR9213G0
R154
Q152
11.26V
C151
0.001
CHG ON:
D150 Q153
MA13 3 XP1501
CHG ON:
3.31V
R155 R156
1k
2.7k
R161 SB07-03C
C152
0.001 10K R157
CHG ON:3.24V
2.2K
R158
33 0
D200 R203
Q200 330
MA2S1110G
C214 UNR9213G0
0.001
R204
C216
330
DS201 0.001
CL-165HR
Q 201
C215 UNR9213G0
1.84V
0.001
UNR911HG0
C217
0.001
1 0.22
2 C60
3
C61
4 0.22
5
C62
6 0.22
MMZ1005Y102CT
7
C63
R62 EP51
8 0.22 J50
100
MMZ1005Y102CT
EP52
C68
C67
10P EP53
10P
MMZ1005Y102CT
A
MMZ1005Y102CT
L101 EP102
100U
C111
C124
D102
C123 68
C120
0.001 0.1
R115 150P
100K
8
VSS
7
6 C119 22P
5
CLK C112
4.7
C110
220P
R116
22K
R105
10K
PCON
R110
C115
47K 0.001
R113
0.01 2.2M
C121 R114
1.5M
5 1 1M
VCC+ IN+
2 R117
GND
4 3
OU T IN -
R108
R111
0
IC104
2.2M
LMV331IDCK R
R112
330K
D103
MA2S7280G
C420
C113
33
1
0.001
MMZ1005Y102CT
EP100
C106
R219
22
22
10
C107
22
C223
C222
0.001 R217
10K
2SA1832
Q203
R218
C221
1k
C220
R215 R214 R213
0.001
33 33 33
11.89V
VFY1111C
DS210 DS212
2SB1201
VFY1111C
Q151
3.29V
DS211
VFY1111C
8.33V
VFY1111C
DS202
R205
D151
270
R206
DS203
VFY1111C
220
R207
DS204
VFY1111C
330
R208
DS205
VFY1111C
270
R209
DS206
VFY1111C
270
R210
DS207
VFY1111C
330
R211
DS208
VFY1111C
330
Q202 R212
DS209
VFY1111C
330
C219
LIGHT ON:2.57V
0.001
LIGHT OFF:0.60V
*; Refer to "PARTS LIST."