Icom IC-E92D Service Manual page 48

SECTION 8 BOARD LAYOUTS
• LOGIC UNIT
(TOP VIEW)
V0 V5 V10 V15 V20
R213
D 2 S 0 1
C54
R56
Q51
R57
C55
R58
C56
R61
D200
C214
Q200
C215
R203
DS201
Q201
R204
C218
C216
R211
C217
R212
DS208
R208
R209
DS209
D 2 S 5 0 D 2 S 6 0
D 2 S 2 0 D 2 S 3 0
8 - 1
V25 V30 V35 V40 V45 V50
R214
D 2 S 1 1
C304
Q302
R310
C305
MC300
C510
D11 D3 C509
D2 Q501
R506
R507
R508
R509
R510
EP502
R523
R524
C550 Q503
R518
C548
DS207
D 2 S 4 0
• MAIN UNIT
(TOP VIEW)
FI100
L100
D102
R115
C113
C123
R107
R108
C116
C118 C115
C122 C121
C138
C119
R112 R111
C705
C154
R154
R156
C155
R256
R700
C706
C258
C255
Q250
C704
C233
R306
Q205
R305
C261 C234
R221
C235
R218
R207
C228 C226
D204 Q202
B-6851C
J1 (CHASSIS)
• RF UNIT
(TOP VIEW)
• VCO UNIT
(TOP VIEW)
L3
R5 R3 D4
C3 R4
D52
R8 D2
D3
L53
C117
C10
D6
L52
R6
R9
C206
R62
D54
R7
C61 C59
R56
Q51
R201
C57
R208
R53
R109
R207 C58
D53
R108 R107
R204 R202
C104 R102 R101
C202 R106
L103 D102
C110
C106
C105
C118
Q201 L101
R115 R114
R111
R205 C213
C102
D101
R100 C101
R104 C103 C112
C108
R11 R10 C24 C725 C724
C8 R9
R19 FI1
C726
R8
C4
C6
CK
VCC
DATA
MOD
GND
R17 R25
R23 Q1
+5.5V
C14 SQL
DASTB2
C472 C754
Q151
HV
EP758
C775
C474 C772 EP755 APLLSTB
TXC
C160
D700 R713 +5V
IOSTB1
R157 C157
BPLSTB EP752
C718
DASTB1 C757
BPS
C717
UNLK
C779
IOSTB2
C716
C158 TTEMP
C790 EP757
IOSTB3
C700
R150 C764
ANOIS
R151 IC703 IC700
C701 DIUD2
C789
CHG
R257 ATONE
C760
C715 DAFOUT
C257 C781 EP759
BTONE
C712
INTPTT
+3V
C711
S-TXV
BRSSI
R602
R250 R251
R473 DICK
R471
BNOIS
C470 R470 L452 DIUD
C206 C210
DVC
GND
R472
GND
Q201
VOLOUT
C475
GND
GND
L450
R459
C459 C473
C208
C456
C455
C402 R457
Q450
R458
C403 R455
C52
C60
C358 R355 C401
R452
C50
C356 C400
R353
IC50 EP401 C454 EP450
R352 Q351 C51
EP400 C453 R450
C360
C357
C54
R303
C353 R351
C308
C307
L351
MP300
R302
D352 Q301
C303 IC400
D301
C309 D351 C305
R301
R350
C302
C352
L454
C350
C300 C408
R400
C351
C406 R402
C301
C407 R403
R401
LV C409
C952
C18 C19 C20
C702 R701
C719
C700
D701
R702 L700
C701
R10
C704
D702
C705
Q700
C706 IC950
C2 R705
R707
L2
C711 R710 R711 D705
L702 C708
R708 C718
C710 R714
C714
C967 C961
C27 C721
C24
L20
C7 C8 C45
L5
R5
D4
L4
L11 C26
R800 R805
C11
C819
L801
C13
R803 C837
C807
R802
R854
IC800
L7
C341
L10
R1
C29
C811
Q304
C14 D160 C168 C810
R832 R806
C165
C858
C43 R807 ULV
C167 C163 UVCO3
D7
C812 GND
C169 Q251 VMOD
GND
D6 C186
L150 D150 C262 VLV
R177
VVCO3
C164
GND
R808
L251
C192
D151
C258
L13 D251 C840
R165 R251
R166 C838
D254 R256
C250
R253 D253 L254
C263
L101
R2 C260 D256
D255
C268
C257
L103
C134
C146
Q100
R111 EP102
R104
L105
L106 L108
Q101 R110
C127
D159
EP101 C129
C1004
R114
C122
EP100
EP1003
C121 C136
C950
C960
C833
R841
C834
C841
IFA REF
GND GND
C911 AAGC
VCO3V
+3V +5.5V
R3 VCC
CK HV
DATA VMOD
+5V IOSTB1
APLLSTB BATT+
VAVCOC REFC
AR3C TTEMP
UAVCOC UNLK
C854
BAGC T5
GND DASTB1
R855
RFB HV-I
R853
C135
C671
LOOUT C800
GND
PLLOUT C804 C805
C801
GND
BCVCO3
VSHIFT Q801
GND
Q800
BCLV
C855
C909
C901
C1007
R115 R116
[DC IN]