![background image](http://html2.mh-extra.com/html/icom/ic-e90/ic-e90_service-manual_4187962055.webp)
11 - 4
O
R101
4.7k
C101
0.01
C103
4p
C109
100p
L101
0.82
µ
H
L103
1.5
µ
H
C105
0.01
C110
0.001
R105
4.7k
C113
0.01
R108
6.8k
R107
15k
R109
47
C115
0.001
C114
8p
R111
220
L104
1.0
µ
H
D103
MA133
C153
0.01
C116
0.01
R158
220k
C161
0.001
C160
0.001
R159
4.7k
C158
0.001
R156
15k
R155
56k
R167
220k
C156
0.001
C162
0.1
FI151
CFWM450E
I
D151
1SS364
D152
1SS364
R162
4.7k
R165
12k
R164
12k
C166
0.01
R161
12k
R163
12k
C201
22p
1
2
3
4
5
6
R202
330k
C203
0.01
R205
47k
R203
390
R201
470
1
2
3
4
5
6
R207
220k
R206
1M
C207
0.22
R208
22k
C208
0.01
R209
1.5k
C209
0.1
R211
33k
C210
0.1
R210
100
C205
4.7
C202
0.001
C212
0.047
R212
2.2k
C214
0.01
R219
18k
C217
0.01
R220
100k
R218
10k
1
2
3
4
5
6
R225
15k
C216
0.0022
C215
0.0047
R216
18k
R215
18k
C213
0.0047
R217
18k
C221
0.1
R229
180
D201
1SS364
R214
4.7k
R213
4.7k
R228
180k
C220
0.1
R223
1M
R224
47k
R222
180k
R221
10k
C219
0.1
C218
0.018
C211
0.1
R166
12k
C225
1
C154
39p
C155
150p
R151
22k
R153
1.2k
C159
0.1
C165
0.01
C223
0.1
R232
2.2k
R230
10
R110
220
R251
1M
C252
0.047
R252
47k
C254
0.1
R256
15k
OUT1
1
IN1
2
COM
3
GND
4
VC
5
IN2
6
OUT2
7
VCC
8
R254
220k
R253
33k
R260
120k
R261
33k
NC 1
VCC 2
NC
3
VIN
4
RIPPLE 5
NF
6
PHASE
7
PREGND
8
PWGND
9
POUT
10
R262
4.7k
R264
10
C268
0.047
C265
47p
R263
150
C267
3.3
C260
1
C263
0.1
C269
150
C270
0.001
R259
8.2k
R258
82k
C258
0.1
R257
68k
C253
0.1
C204
0.47
R204
10k
C206
0.1
C167
0.01
R102
4.7k
R103
4.7k
R112
4.7k
R104
4.7k
C251
0.001
1
2
3
4
5
6
J252
EXT.
MIC
J253
EXT. SP
REMOTE
R152
2.2k
C151
0.001
C152
0.1
C274
47p
C272
0.001
J251
S251
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
C107
0.001
C111
0.001
R154
1k
C163
0.1
C164
10
C289
0.001
C287
47p
C256
0.1
C255
0.001
C286
120p
C157
0.001
C277
0.001
C275
0.001
C276
0.001
C284
47p
C282
47p
C283
47p
1
2
3
5
C230
0.001
C229
0.001
C228
22
R231
1k
C227
0.001
1
2
3
5
C261
150
C279
0.001
R265
330
E
UP
DN
D104
MA2S111
C259
1
C257
0.001
C296
0.001
R233
10k
R234
10k
OSCIN
1
OSCOUT
2
MIXOUT
3
VDD
4
IFIN
5
BIAS
6
FILOUT
7
FILIN
8
AFOUT
9
QUADIN
10
IFOUT
11
SOUT
12
NDET
13
NOUT
14
VSS
15
MIXIN
16
D101
1SS364
D102
1SS364
FI101
FL-338
69.450 MHz
I
O
L151
LS-528
1
2
3
4
5
6
C168
22
W2
W1
R113
150
R114
330
C117
10
C298
0.1
C299
0.1
C302
0.001
C303
0.001
C304
0.001
C278
0.001
EP3
EP3–EP5
MMZ1608Y102BT
EP4
EP5
W3
FI102
SFECS13.35MA
1
I
2
O
3
G
4
FL
SD
BEEP
IOSTB
PLSTB
DASTB
+10V
PDA/UL
IF
CHG
MUTE
BEEP
BEEP
MUTE
MUTE
VOLC
VOLC
VO
L
C
HV
VMOD
PATMP
CK
R3C
DATA
XMOD
DETO
AFV
AFV
AFV
WXALT
WXAL
T
REMO
INTSP
VSHFT
AM
VCC
+3C
DETO
+3C
+3C
V3C
NOISE
SD
R3C
NOISE
+3
V2C
V1C
TXC
WFM
WXALT
AM
WFM
AM
WFM
DICK
DIUD
EXTM
to LOGIC
unit J1
VOLC
BEEP
MUTE
WFM
WFM
AM
WXALT
DETO
DETO
DET
O
DETO
SD
NOISE
DIUK
DIUD
+3
EXTM
WFM
R3V
R3V
R3V
R3C
+3C
VCC
+3
WFM
WFM
WFM
+10V
VMOD
PATMP
VSHFT
HV
CHG
PLSTB
DATA
CK
PDA/UL
CK
DATA
DASTB
XMOD
V3C
DATA
CK
IOSTB
IOSTB
IOSTB
EXTM
REMO
INTSP
INTSP
REMO
TXC
TXC
DIUD
D1
HVC376BTRF
R3
100k
C3
0.001
X1
CR-583
13.800 MHz
C5
180p
C6
120p
R4
390k
R7
1k
C9
0.01
C17
0.001
R8
47k
R5
47
L3
0.15
µ
H
C12
2p
C2
0.001
D2
1SS364
C10
4p
R13
12k
R9
47
R11
1.8k
C8
8p
C7
100p
R12
12k
C4
0.01
R63
4.7k
D51
MA2S728
C58
22
C59
22
C60
0.001
1
2
3
5
R58
10k
R54
4.7k
R56
4.7k
C51
0.001
R52
470
R51
4.7k
C53
0.001
R55
470
1
2
3
4
5
6
1
2
3
4
5
6
R57
470
C54
22
R59
10k
C55
0.001
R60
470
R62
1M
R61
100k
C56
0.001
C57
0.001
1
2
3
4
5
1
2
3
4
5
STRB
1
DATA
2
CLK
3
Q1
4
Q2
5
Q3
6
Q4
7
VSS
8
QS
9
Q'S
10
Q8
11
Q7
12
Q6
13
Q5
14
OENA
15
VDD
16
R1
27k
R2
100k
C1
0.001
D3
1SS364
C18
0.01
R10
12k
1
2
3
4
5
C23
7p
D52
MA2S111
R64
2.2k
L8
22nH
C25
6p
C24
33p
C14
4p
L4
0.18
µ
H
L5
0.18
µ
H
C11
22p
C13
22p
L9
0.15
µ
H
C26
33p
R266
270
B5C
B4C
B3C
B1C
B2C
V3
V2
V1
T43
T43
T50
T14
T14
+3C
TXC
V3C
V2C
V1C
FSET
FSET
XMOD
REF
J51
C293
47p
V3
V2
+10V
V1
CHG
FSET
HV
VMOD
PATMP
B3C
B4C
CK
B5C
REF
BSFT
VSHFT
VCC
+3
AGC
B1C
B2C
B2C
T14
T50
to RF unit
J251
DATA
PLSTB
PDA/UL
+3
IF
IF
V1
V1
V1
VCC
VCC
VCC
VCC
VCC
AGC
AG
C
AGC
AGC
AG
C
T14
T50
T43
+3
V1
+3
REF
REF
VCC
VCC
+3
+3
V3C
V3C
V2C
V2C
BSFT
4
4
AF UNIT
4
B5C
B4C
B3C
B1C
V3
V2
BSFT
B2C
B2C
BSFT
B4C
V3
V2
B5C
B3C
B1C
T43
PLSTB
DASTB
GND
B3C
B4C
CK
B5C
DATA
REF
VCC
AGC
B1C
T14
T50
T43
DASTB
TXC
C301
0.1
C300
0.1
Q102
2SC4403
Q201
XP6501
Q202
XP6501
Q204
XP6501
Q205
2SD2216
Q203
2SJ364
Q251
2SJ364
IC251
M5222FP
IC252
TA7368F
Q101
XP4315
Q209
XP1501
Q208
2SA1576
Q207
XP1115
IC151
TA31136FN
Q206
XP4315
Q103
UN9113
Q1
2SC4117
Q2
2SC4406
Q57
2SD2216
Q59
UN9115
Q11
XP1501
Q55
2SB1132
Q51
2SA1588
Q53
2SA1588
C52
0.001
Q56
XP4214
Q54
XP4214
Q62
XP1115
Q63
XP1115
IC51
BU4094BCFV
Q61
UN9115
Q253
UN9115
Q58
XP1115
Q64
2SA1576
Q65
UN9113
Q66
UN9113
Q67
UN9113
Q52
2SA1588
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3.21V
TX: 6.02V
RX: 0V
TX: 6.05V
RX: 0V
TX: 5.94V
RX: 0V
TX: –
RX: 1.51V
TX: 0V
RX: 0.63V
TX: 0
RX: 2.9V
3.05V
1.65V
TX: 5.92V
RX: 0V
TX: 0.55V
RX: 0.97V
TX: 0.62V
RX: 2.19V
TX: 0.63V
RX: 3.19V
3.11V
TX: 0V
RX: 5.82V
11 - 3 AF UNIT