Icom IC-F4101D, Service Manual

Page: 34 / 38

10 - 1
SECTION 10. VOLTAGE DIAGRAM
• MAIN-A/C UNIT (1/3)
TX 0.82V
RX 0V
TX 4W 2.26V
TX 1W 0.98V
RX 0V
TX 1.66V
RX 0V
TX 4.89V
RX 0V
TX 4W 3.50V
TX 1W 1.56V
RX 0V
TX 4W 1.76V
TX 1W 1.25V
RX 0V
TX 0.70V
RX 0V
TX 1.34V
RX 1.34V
TX 1.99V
RX 0V
TX 0V
RX 1.99V
7.50V
0.78V
0.76V
4.51V
4.98V
4.24V
0.77V
TX 1.72V
RX 0V
TX 0V
RX 1.73V
TX 1.75V
RX 2.43V
LOCK 3.23V
UNLOCK 0V
15.3MHz
1.06Vp-p
W 2.74V
N 0V
TX 0V
RX 0.59V
TX 0V
RX 4.69V
TX 0V
RX 3.27V
A 2.69V
D 0V
TX 0V
RX 0.55V
TX 0V
RX 0.65V
TX 0V
RX 1.77V
R138 470
R147 1.5K
R132 10K
R146 47
IC1
TA75S01F
1
2
3
4
5
R82 10K
R13 10
Q26
2SC4116
R151 27K
R152 8.2K
R155 27K
IC3
NJM2591V
1
OSCIN
2
OSCOUT
3
MIXOUT
4
V+
5
IFIN
6
DEC
7
FILOUT
8
FILIN
9
AFOUT
10
QUAD
11
IFOUT
12
RSSI
13
NOISEDET
14
NOISEREC
15
GND
16
MIXIN
EP5
MMZ1005Y102CT
R80
EXB28V102J
EP4
MMZ1005Y102CT
NOIS
SQIN
TMUT
S5V
NWC
MOD
HV
R5V
+5V
SCK
DISC
T5V
UNLK
LVIN
PLST
VCON
SSO
RSSI
D36
1SS390
D37
1SS390
D38
1SS390
D39
1SS390
FI1
FL-442
1
IN
2
OUT
3
GND
4
GND
5
6
MP3
2775 1 2 3 4
R153 3.3K R154 8.2K
C235 10
R148 1K
C231
100P
C251
3P
C252 56P
C254 56P
C256
10P
C158 10P
C155 47P C154 47P C153 47P
ANT_BOARD
FI4
LTM450HW
I O
X1 JTBM450CX70
C33 0.001
C32 0.001
C28 0.001
C26 0.001
C27 0.001
C224
0.001
C236 0.001
C238 0.001
C240 0.001
C160 0.001
C152 0.001
C264
0.01
C265
0.01
C263
0.01
R149 680K
C91 1
C31
0.1
C227
0.01
C226 0.01
C255 0.01
C257 0.01
C159 0.1
C156 0.1
C244 0.1
C239 330P
C253
6P
MP4 OG-503040
R140 3.9K
R175 560
C218 0.01
R9
10K
R8 22K
C30
0.22
C267 0.1
R172 10
FI3
LTM450FW
I O
Q28
2SC4116
IC4
AK1541
1
CPVDD
2
TEST4
3
TEST1
4
LE
5
DATA
6
CLK
7
LD
8
PDN2
9
PDN1
10
REFIN
11
TEST2
12
TEST3
13
VREF1
14
DVSS
15
VREF2
16
RFINN
17
RFINP
18
PVDD
19
BIAS
20
PVSS
21
CP
22
CPZ
23
SWIN
24
CPVSS
25
C271 0.1
C272 0.1
C273
0.1
R162
100
R161
180K
R190 1K
IC5
NJM2711F
1
2
3
4
5
R165 1.5K
R167
6.8K
R166 5.6K
R163
100
C275 0.033
C276
27P
R164
4.7K
C274 0.1
C277
0.1
C284 0.01
C290 0.01
C282 0.01
C286 0.01
R173
3.3K
R174
3.3K
R177
1K
C291 0.1 C292 0.1
C293 0.001
C146 0.22 C145 0.22
C144 100P
R81
27K
C151 100P C150 0.01 C148 10
R84
100K
X2 CR-892(15.3MHZ)
1
VCON
2
GND
3
OUT
4
VCC
ADS
T1
T2
LVA
DIF
S5C
PLSW
+3.3V
R134 100K
C147
0.001
R16
10K
C266 0.1
C261
0.01
C262
0.01
L23 MLG1608S
L24 MLG1608S
R158 4.7K
Q29
LDTC114YE
Q27
LDTC114YE
IC6
TC7W66FK
1
2
3
4
5
6
7
8
R169 1.5K
R58 100K
RXC
Q16
LDTC114YE
D31
HVD144A
D32
HVD144A
D33
HVD144A
D34
HVD144A
C8
2.5P
C4
1.5P
R2 2.7K
R5 2.7K
L3
0.30-0.9-5TL
L1
0.30-0.9-6TR
R4
1K
R1 68K
C1 1.5P
C10
0.001
R3
1K
L2
0.30-0.9-6TR
C2 8P
C7 0.001
C171 4P
L11
LQW18AN22NG00
C172 2P
D22 HVD142A
C173
0.001
C175 47P
R105
10K
C181
7P
R156 1K
R104
10K
R106 47K
D26
HVB350BYPTL-E
1 2
3 4
C183 0.001
C179 6P
C184 0.1
D24
HVB350BYPTL-E
1 2
3 4
C177 8P
C182 0.001
L15 LQN21A
D21 L1SS400
R102 470K
C192 0.001
R112 47
R109 10
R108 82K
C188 0.001
Q22
3SK293
C189 0.001
R103 1.8K
Q21
2SK1829
*R113
R110 100
C194 0.001
L16 LQN21A
R115 100K R114 100K
R116 120K
C198 12P
R157 1K
C203 0.1
*C200
R159 12K
C197
0.5P
D28
HVB350BYPTL-E
1 2
3 4
C196 12P
C201 0.001
C221 47P
R118
120K
C211 0.001
R119 150K
R122 47
C217 0.01
C216 0.001
R121 3.3K R117 100K C215 18P L20 ELJNC
L19
MLK1005S
C223 0.001
R120 120
Q23
3SK293
C213 47P
C214 0.001
R139
100K
C233 47P
C225 0.01
C19 0.001
Q1
RD07MUS2B-T112
C45
47P
L6
0.40-0.9-2TL
L7 0.40-1.4-5TR
C18 0.001
L4 NLV25T
R21 10
C49 0.001
C38 0.001
C36 47P
L5
0.40-0.9-2TL
C37 330P
R6 220
C11
0.001
C39 47P
D3
HVD142A
Q2
RD01MUS1-T113
EP6 MPZ2012S331A
L48 MLK1005S
R23 33K
R22 4.7K
C52 0.001
R29 47
C54 0.001
R30 22K
L8 MLK1005S
C55
10P
C57 330P
C51 4P
*R28
R24 47
R27 4.7K
*C34 C35 0.001
C65 0.001
R35 4.7K
R31 100
D5
HVD142A
C59
5P
R33 10K
C61 0.001
C67 2P
L9 MLK1005S
C60 47P
R34 100
C64 0.001
C71
10P
D6 HVD142A
*C206
C208 2P
L18
MLK1005S
C209 2P
C210
5P
C168 7P
C167 7P
L46
MLK1005S
R83 56
C149
100P
L31 MLK1005S
R41 10
R42 68K
C72 0.001
C74
5P
C73 0.001
R43 100
C81 3P
R44 100K
C76 0.001
C82 47P
L32 MLK1005S
C141 6P
L33 MLK1005S
C66 2P
R45 100
C78 0.001
R46 100K
C79 0.1
C77 0.001
Q11
LDTC144EE
EP11 MMZ1005A152ET
C83
0.75P
C101
0.5P
EP14 MMZ1005A152ET
Q12
LDTC144EE
C80 330P
C122 0.01
Q15
2SC4116
C121 10
R67 2.2K
C85 0.001
C87 18P
EP3 MMZ1005Y102CT
C84 330P
MP5 OG-503040
C109 0.001
D12 HVD350B
C93 330P
D15 1SV309
C94 47P
D16 HVD350B
L41
LQW18ANR47G00 R64 10
R87
100K
C110 0.5P
C120 0.001
C124 0.001
R68
470K
R66
150K
R65 27K C118 47P
R72
100
C123 0.001
R71 10K
Q17
2SK880
C116
1
C186
0.1
C47 330P
FI2
FL-448
1
IN
2
OUT
3
GND
4
GND
5
6
C288 9P
R74
6.8K
R73 10K
C157
0.001
IC21
TA75S01F
1
2
3
4
5
R188 100K
C248 0.1
R189 100
R187 100K
R181 150
R182
2.2K
R183
2.2K
R127 120K
R126 100
FI5 LTUCG450G
DET
Q95
LDTA144EE
Q3
2SC3356
C112 0.001
R52 470
R185
100K
R186
270K
C247
39P
R178 5.6K
R176 22K R171 22K
C117 0.0015
R135 1.5K
R136
1.5K
C232
33P
CP1
C246
10
R78
0
R79 1.2K R77 2.2K
C134 0.47
R76
120
C132 0.33
R59 270K
R62 120K
R142 120K
R141
68K
R123 0
C287 4P
R184 10
L37
LQW18ANR47G00
L42
LQW18ANR47G00
EP7 MMZ1005A152ET
EP8 MMZ1005A152ET
C195 2P
C199 2P
C12 9P
R14
270
R15 1K
R12
470K
R10
100K
C89 12P
D11 HVD350B
L36
0.30-0.9-4TR
C86 5P
C107 12P
C106
12P
R57
0
C105 10P
L35
MLG1608S
C241 33P
Q13
2SC4226
Q14
2SC4226
C119 1
R107
27K
Q4
2SC5107
Q8
2SC5107
Q9
2SC5107
Q10
2SC5107
Q24
2SC5107
C48 47P C50 47P C68 0.001
C75 47P
C95 47P
D10 MA2S7280G
L40
0.30-0.9-3TR
C176 27P C180 33P
C178
2P
C63
5P
R32 22K
C62 8P
C13 15P
C9 3P
C5 7P
D2 LRB751S-40T1G D1 LRB751S-40T1G
C3 1P C6 1P
R11 82K
C242 150P
C243
150P
C283 6P
R128 680
C104 5P C108 3P
C111
8P
C92
15P
C88
10P
C90 0.5P
R51 470
R70
220K
R69 150K C127 0.001
C103 47P
C102 0.001
C14 27P
D14 HVD396C
R53
6.8K
R54
6.8K
R55
6.8K
R56
6.8K
C53 330P
*C300
L13 LQN21A L14 LQN21A
*C15
*C96
R101
220K
PLST
SSO
SCK
R5V
S5V
+5V
HV
UNLK
NOIS
DISC
LVIN
SQIN
VCON
MOD
TMUT
NWC
RSSI
PLST
SCK
SSO
T5V
T2
+5V
VCON
DET
S5C
+5V
UNLK
R5V DIF
ADS
LVA
T1
T2
R5V ADS
TMUT
DIF
R5V
S5C
PLSW
RSSI
+3.3V
+3.3V +3.3V
T5V
S5V PLSW
RXC
NWC
T1
RSSI
R5V
R5V
S5V
VCOV
MOD
T5V
LVIN
R5V
DET
RXC +3.3V
LVA
NOIS SQIN DISC
APCV
T1
+5V
+5V
HV
PAV
LPF
APC
AGC
RF AMP
MIX
IF AMP
IF IC
REF
T5V
R5V
HV
T5V
*3 MULTI
PLL
S5V
HV
T5V
L:NARROW H:WIDE
TX VCO
RX VCO
*: Refer to the PARTS LIST for the value and name of component.