Icom IC-F5122D Service Manual - page 36
11 - 2
• MAIN UNIT (1/3)
*: Refer to the PARTS LIST for the value and name of component.
8.0V
5.0V
7.1V
TX 3.0V
RX 0.0V
TX 2.3V
RX 2.2V
TX 0.0V
RX 2.9V
TX 6.7V
RX 0.0V
TX 8.0V
RX 0.0V
50W4.9V
25W3.9V
13.6V
TX 0.0V
RX 3.0V
50W2.3V
25W1.6V
TX 0.2V
RX 1.4V
TX 0.0V
RX 6.5V
TX 0.0V
RX 5.7V
TX 0.0V
RX 3.9V
TX 0.0V
RX 0.5V
TX 0.0V
RX 7.9V
TX 0.0V
RX 7.4V
Narrow0.0V
Wide
2.1V
4.9V
4.9V
3.0V
5.0V
Narrow 0.0V
Wide
2.1V
Narrow 0.9V
Wide
1.0V
5.0V
5.0V
UNLK 0.0V
LK
3.3V
1.0Vp-p
15.3MHz
3.3V
TX 0.0V
RX 2.3V
L30
AS080547-47N
C1
18P
C8
22P
FI7
NFM60R20T152
1 2
3
C2
22P
R1
100K
L35
AS080547-47N
*FI6
1 2
3
L33
AS080547-47N
R8
100
FI8
NFM60R20T152
1
2
3
R337
0
R52
15K
C79
0.22
R55
4.7K
R57
10K
R56
150K
IC2
TA75S01F
1
2
3
4
5
*Q21
R38
100K
R41
0
Q20
3SK293
R14
10K
R301
150K
R320
470K
R39
47
R40
1.5K
D37
HVC375B-E
D31
HVC375B-E
R22
10K
R43
470
R300
56K
R19
100K
R17
100
Q22
2SK1829
R302
56K
R237
680K
Q4
2SC4116
R340
10K
R68
10K
*L21
R69
4.7K
L8
0.25-1.9-7TL
R86
120K
R84
3.9K
R311
220
R91
22K
L5
0.25-1.9-7TL
D7
HVC376B-E
L3
0.35-1.6-7TL
R100
10K
R85
3.9K
Q2
2SC4116
R101
1K
R73
100
D5
HVC376B-E
R71
100
R80
1K
R328
0
R79
1.8K
R74
120K
R339
0
R77
2.2K
Q3
2SK880
Q12
2SC5006
R317
1K
R89
10K
R92
100K
R83
1.8K
D4
HVC376B-E
Q15
2SC5006
R70
100
R98
2.2K
HV
T8V
R8V
8V
+5V
+3.3V
NWC
T1
T2
TMUT
RXC
MOD
F
SCK
SSO
SQIN
C195
0.22
NOIS
DISC
RSSI
LVIN
UNLK
PLST
LVA
L36
C2520C
L32
C2520C
R16
270
R12
100
L28
C2520C
L25
C2520C
L20
ELJND
R31
100
R299
180K
L13
ELJRF
L14
ELJND
R236
1.2K
*R48
R51
560K
R54
10K
R58
470
R59
18K
R387
4.7K
D10
HVL355CM
Q11
2SC5006
L17
ELJRF
L27
FHW1210HC
L26
AS080547-47N
*C402
*C403
C3
0.5P
C5
0.5P
C6
22P
R15
270K
R213
10K
R67
100
R53
220
L10
NLV25T
R235
10K
R50
470
R234
10K
R310
10K
R211
47
L34
C2012C-56NG
R75
220K
R76
100
L7
C6342A
C7
22P
C404
22P
C9
18P
*C82
*C83
R350
27K
R353
8.2K
R354
8.2K
R351
27K
L1
ELJNC
L24
ELJRE
EP1
MMZ1005Y102CT
EP7
MMZ1005Y102CT
L4
ELJFC
L29
AS080547-47N
L6
MLF1608K
C75
10
C148
10
R291
100K
MP 1
1
2
3
4
R4
10K
R7
10K
L2
NLV25T
Q17
2SC3357
L19
ELJRE
R332
0
Q9
2SK3019
R29
82
R390
33K
D34
DA221
*IC3
1
RF INPU
T
2
GATE BIAS
3
DRAIN BIAS
4
RF OUTOPUT
C451
10
EP9
MMZ1005Y102CT
R21
10K
R23
10K
R319
10K
D30
MA2S7280G
R11
4.7K
R13
4.7K
Q19
3SK293
R90
82K
*R49
R9
10K
R348
120K
R349
270K
C487
0.33
W1
RDS2T0R0
R393
1.5K
C499
0.1
C496
0.01
R488
3.3K
R484
3.3K
R490
1K
C489
7P
R125
560
R493
1K
C495
0.01
FI4
FL-442
1
IN
2
OUT
3
GND
4
GND
5
6
R123
10
C501
0.001
R489
3.3K
R479
27K
R483
3.3K
C500
0.1
C490
0.5P
C494
0.01
C493
0.01
R176
1.5K
C283
0.1
R174
6.8K
R171
100
C491
0.033
Q5
2SC4116
R172
180K
IC5
NJM2711F
1
2
3
4
5
R175
5.6K
C282
0.1
C284
0.1
R173
1K
C503
0.22
R93
27K
C502
0.22
C150
0.01
C155
0.001
C140
100P
C505
10
C488
0.001
C504
100P
EP8
MMZ1005Y102CT
R496
EXB28V102J
R492
100K
IC8
AK1541
1
CPVDD
2
TEST4
3
TEST1
4
LE
5
DATA
6
CLK
7
LD
8
PDN2
9
PDN1
10
REFI
N
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
SWI
N
24
CPVSS
25
X2
CR-892(15.3MHZ)
1
VCON
2
GND
3
OUT
4
VCC
IC4
NJM2591V
1
OSCI
N
2
OSCOUT
3
MIXOUT
4
V+
5
IFIN
6
DEC
7
FILOUT
8
FILI
N
9
AFOUT
10
QUAD
11
I
FOUT
12
RSSI
13
NOISEDET
14
NOISERE
C15
GND
16
MIXI
N
C277
0.1
C492
0.1
D15
HVD142A
D16
HVD142A
D6
HVC376B-E
D12
HVC375B-E
D11
HVC375B-E
C305
56P
C307
56P
C306
6P
C308
3P
C395
0.01
C394
0.01
AD S
VCON
DI
F
C301
0.001
C408
0.001
C135
0.001
C54
0.001
C32
0.001
C480
0.001
C469
0.001
C88
0.001
C107
0.001
C391
0.001
C197
0.001
C476
0.001
C372
0.001
C87
0.001
C409
0.001
C58
0.001
C50
0.001
C482
0.001
C90
0.001
C28
0.001
C457
0.001
C119
0.001
C10
0.001
C479
0.001
C34
0.001
C110
0.001
C51
0.001
C19
0.001
C67
0.001
C141
0.001
C335
0.001
C368
0.001
C143
0.001
C38
0.001
C85
0.001
C12
0.001
C348
0.001
C66
0.001
C478
0.001
C59
0.001
C37
0.001
C42
0.001
C11
0.001
C472
0.001
C347
0.001
C196
0.001
C109
0.001
C74
0.001
C461
0.001
C467
0.001
C57
0.001
C343
0.001
C78
0.001
C99
0.001
C366
0.001
C337
0.001
C92
0.001
C462
0.001
C36
0.001
C81
0.001
C117
0.001
C104
0.001
C458
0.001
C303
0.001
C105
0.001
C77
0.001
C76
0.01
C116
0.01
C162
0.01
C398
0.01
C397
0.01
C108
0.01
C399
0.01
C309
0.01
C314
0.01
C60
0.01
C363
0.015
C33
0.1
C43
0.1
C396
0.1
C80
0.1
C31
0.1
C160
0.1
C53
0.1
C27
0.1
C151
0.1
C132
0.1
C120
0.1
C48
0.1
C71
0.1
C383
0.1
C312
0.1
C139
0.1
C73
1
C22
1.5P
C61
100P
C323
10P
C302
10P
C52
10P
C103
10P
C100
10P
C440
12P
C25
12P
C127
15P
C93
18P
C460
18P
C126
18P
C41
18P
C392
18P
C129
1P
C477
220P
C471
220P
C124
220P
C26
22P
C20
22P
C46
2P
C114
33P
C134
33P
C115
33P
C106
47P
C152
47P
C154
47P
C138
47P
C153
47P
C144
47P
C111
47P
C94
47P
C333
47P
C443
47P
C459
47P
C390
47P
C13
47P
C86
47P
C466
47P
C63
47P
C364
47P
C84
47P
C123
47P
C360
5P
C353
5P
C376
5P
C468
68P
C369
68P
C367
68P
C470
68P
C377
68P
C473
68P
C18
6P
C339
7P
C356
7P
C62
82P
C17
8P
C40
4P
C354
9P
FI1
LTM450HW
I O
C355
2.5P
L12
MLG1608S
L9
MLG1608S
*C380
*C381
*C411
*C72
FI2
LTM450FW
I O
C385
0.01
C384
0.01
PLSW
Q18
LDTC114YE
Q13
LDTC114YE
Q1
LDTC114YE
Q23
LDTC114YE
IC6
TA75S01F
1
2
3
4
5
R498
100K
R499
100
1
2
7
IC7
5
6
3
IC7
TC7W66FK
V+8
GND4
R500
100K
VREF
C508
0.001
C507
0.1
R486
680
D17
HVD144A
D14
HVD144A
D18
HVD144A
D13
HVD144A
R33
27K
R502
1.5K
Q24
LDTC114YE
R503
100K
X1
JTBM450CX70
C65
0.01
D2
HVD144A
D3
HVD144A
D8
HVD144A
D9
HVD144A
D24
RN752
Q8
LDTC114YE
C510
0.1
C14
0.001
R352
8.2K
R495
4.7K
*R6
*R5
*R10
*R212
*C4
*D211
2
3
4
R35
10
R290
330
R34
220K
FI3
LTUCG450G
FI5
FL-448
1
IN
2
OUT
3
GND
4
GND
5
6
D32
HVD142A
*D28
*D25
*D26
C198
0.1
C330
2.2
C342
0.33
R504
100K
C401
0.001
C456
0.001
C64
0.01
R505
6.8K
D27
LRB706F
D29
LRB706F
D35
LRB706F
CP1
L15
ELJRF
C285
33P
C300
15P
C113
0.5P
L16
ELJRF
C102
15P
C374
1
C112
1
L31
C2520C
C442
3.5P
C15
22P
C157
10P
C165
0.001
R30
3.3K
C498
8P
R485
0
R333
10
R334
470
R338
470
R386
12K
R385
27
R388
15
R97
0
R99
1.8K
R96
1.8K
C147
0.47
R95
220
C350
1
C145
47P
R20
150
C511
270P
C39
100P
C45
100P
R178
47
R478
15K
C286
8P
L11
MLF2012A
R36
1.5K
R494
1.5K
R37
1.8K
C35
1
R26
820
R27
820
R28
6.8
C49
15P
C509
4.7
R497
180K
R501
47K
C506
100P
R44
120K
C29
2P
C30
8P
C44
2.5P
C118
0.75P
C121
18P
C122
56P
C131
5P
C133
68P
R78
820
R42
68K
R45
270K
R46
3.9K
C68
82P
C69
180P
C70
180P
C463
180P
C298
18P
C299
15P
R506
0
DET
Q14
2SC5107
Q6
2SC4226
Q7
2SC4226
Q101
2
3
4
5
HV
T8V
R8V
8V
+5V
+3.3V
T1
T2
TMUT
RXC
MOD
F
SCK
SSO
SQIN
NOIS
UNLK
RSSI
LVIN
PLST
DISC
LVA
NWC
RXC
MOD
SQIN
+5V
ADS
R8V
RSSI
SCK
PLST
SSO
+5V
T1
T2
RSSI
NOIS
+5V
T1
TMUT
8V
8V
ADS
VCON
DI
F
HV
T8V
+5V
+5V
LVIN
NWC
VCON
R8V
PLSW
VREF
DISC
+5V
LVA
PLSW
LVA
PLSW
VREF
+5V
NWC
+5V
NWC
DI
F
T8V
+3.3V
UNLK
R8V
F
DET
DET
LP
F
APC
IF AMP
RF AMP
IF IC
*3 MULTI
DRIVER
TX VCO
RX VCO
R8V
L:NARROW(Digital)
MI
X
AGC
PLL
L:Digital
H:WIDE(Mid)
L:NARROW(Digital)
H:WIDE(Mid) H:Analog
IC7