Icom IC-80AD Service Manual page 41

SECTION 8. BOARD LAYOUTS
• LOGIC UNIT
V0 V0 V5 V5 V10 V10 V15 V15 V20 V20
(TOP VIEW)
DS212
DS212
R4 R4
R22 R22
C2 C2
R11 R11
D50
D13 D13
D50
R26 R26
R52 R52 R50 R50
R70 R70
R68 R68
Q53 Q53
R71 R71
R55 R55
C56 C56
R56 R56
Q51 Q51
C55 C55
R57 R57
R58 R58
D53 D53
R203 R203
R204 R204
DS209 D150 D150
DS209
DS202
DS202
D2 D2
D3 D3
DS203
DS203
DS206
DS206
• VCO UNIT
L3
(TOP VIEW)
R8
C202
Q201
R205
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V25 V25 V30 V30 V35 V35 V40 V40 V45 V45 V50 V50
C222 C222 R218 R218 C221 C221
C220 C220
Q203 Q203
R217 R217
R213 R213 R214 R214 R215 R215
DS210
DS211
DS211 DS210
EP50 EP50
C57 C57 R63 R63
R28 R28
IC52 IC52
R20 R20
C67 C67
C60 C60 C62 C62
C61 C61 C63 C63
R62 R62
EP53 EP53
EP51 EP51 C68 C68
Q52 Q52
R21 R21
R16 R16 C12 C12
IC125 IC125
EP100 EP100
MC300 MC300
R156 R156
C105 C105
Q152 Q152
C104 C104
C151 C151
C217 C217
C116 C116 Q202 Q202
C223 C223
D12 D12
C219 C219
R205 R205
D11
D11
R212 R212
R206 R206
R209 R209
R207 R207
R538 R538
D1 D1
IC508 IC508
C556 C556
C555
C555
C558 C558
DS205
DS204
DS205
DS204
DS208
DS208
DS207
DS207
D4
R5 R3
D52
C3 R4
D2
D3
L53
C117
C10
D6
R6 L52
R9
D54
C206
R62
R7
C61 C59
R56
Q51
R201
C57
R208
R53
R109
R207 C58
R108 R107
R204 R202
D53
C104 R102 R101
D102
R106
L103
C110
C106
C105
C118
L101
R111 R115 R114
D101
C213
C102
R100 C101
C103 C112
R104
8 - 1
[MIC]
• MAIN UNIT
(TOP VIEW)
EP706
Q700
R703 R702
J701
Q701
Q150
R706
DICK
DIUD
R561
RSSI EP750 C752
NOISE
C559
IOSTB1
DASTB1 R562
BATT C754
+3CPU
VIN C755 Q552
CLONE
DAFOUT C756
IOEN
C558
[PTT] DATA
C777 CHG
EP751
TX-V R559
C779
VCC EP752 C758
TTEMP
C780 HV C759
CTONE
C760
RTONE
MOD
C761
BEEP
S701
CK
DASTB2
SQL C763
C781
INTPTT
EP760
IOSTB
PLLSTB
UNLK
C765
PPS
GND
+5V
+3V C766
+5.5V
GND
C767
INTSP
C789 EXTMIC C768
SPE
VOLOUT
GND
R603
C605 R604
[SQL]
C610
LV
J1 (CHASSIS)
• RF UNIT
L6
(TOP VIEW)
C1 C6
L1 L3
C3 C5 R300
R318
C301
R10
D306
R304 C303
R309
D307 C305
C317
D304
C320
L304
C323
C321
C312
R306 R307
R312
D308
R951 R950
L309 L308
C147
R952
C324 D309
C146
R316
C325
C149
C327
C843
Q301
C326 IC952
C842
R314
L310
C859
C860
IC800
D311 C858
R954
R807
R826
C822
R808
R806
R820
J800
C837
B-7069C
D851
R852 R853
C341
Q703
C724
Q303
L850
C264
Q252
C851
L851
C262
C857
The combination of top side and bottom side of this
page shows the actual configuration of P.C. board.
[SP]
Q200
Q105
J700
L101
D100
X100
Q102
C1010
B-7070B
C111
R164 C119
C118 R109
Q159
Q2
R110 C120
R112 R111 EP100
R16
C161
R25
C14
R113
D10
R114
Q1
R815
C808 C814
C600
C813
Q803 R813
R811 C812
R605 R812
C454
C452 R451
Q804
X450
C810
C451
C734
C450
C66 C69
R5
L14
L55
D61
C14
D62
C13
C11
C50
C8
C7
D300
C9
L50
D55
C340
R301 C151
C306
C132
L100 R157
D301 L302 R159
R150
C310 C309 L303
C44 C101 C103
D303
C26 R3
C102
R4
C104
C34 Q2
C152 EP150 R153 C159 C158
R101 C157
EP102
R100
Q100
R810
C463
C112 L106 C114
L105
C841 R800 L107
EP801 C914
C111
EP100
C819
C830 Q102
C137
C138
R821
C144
R113
D100
R118
C126 R154
C920 C1007
R119
R115
C160
C165
J1001
Q1000
C1008
[DC IN]
J1000
C1006
C908 L900
C1004