Voltage Diagram; Main Unit - Icom IC-F24 Service Manual

SECTION 11

VOLTAGE DIAGRAM

11-1 MAIN UNIT

VCC
T5V
S5V
+5V
BAL
C211
4.7
X2
R103
CR-783
REF
47 k
REF 1 4
VCON VCC
R104
2 3
GND OUT
330 k
LVIN
L29 1.8 H
S5V
UNLK R117
R93
D24
4.7 k
SCK MA2S111 1 k
R118
9 8
4.7 k CLOCK FIN
SO
10 7
DATA LD C209
PLST 11 6
LE GND 0.001
12 5
FC DO
13 4
NC VCC
C161
14 3
VP
FOUT 10 P
15 2
P OSCOUT
16 1
B OSCIN
IC4
MB15A02PFV-1
MOD
R111
100 k
LVA
R113
390 k
T: 4.8
R: 0.0
T: 4.9
C: 5.0
R: 5.0
T5V
VCC
+5V
Q23
S5V 2SB1132 R
Q21 Q22
2SA1577 Q 2SA1577 Q
Q24
XP6501 AB
Q25
UNR9113J
R221
470
MC1
SKP-4538
Q28
R222
UNR911HJ
82 k
R161
4.7 k R170
12 k
3
1
IC6
C271 C273 C270 2
J2 R224
NJM13403V
0.047 0.047 0.047
HSJ1122-010010 470
Q34
R163
10 k 2SK3019
J3 Q35
HSJ1456-010320 C274
2SK3019
CP2 0.047
C272
0.047
BIAS
J1
BM02B-ASRS-TF
+5V
1
2
Q29
D26
RB876W TL UNR9210J
R225
CHASSIS
100
1
2 J5
S4 R238
BM02B-ASRS-TF
TP70TF5163 100 k
S2
15.9F-2775
AS-243-A13
1
2
(Only F24S, F25S) C1 A1
3
B1
5 4
C2 A2
6
B2
8 7
C3 A3
9
B3
F1
ERBFE3R00U
1 2 VCC
CONNECT BOARD
R226
TP76N00N-15F-A103-2251A
Q17
2SC4116 BL
CP1
Q18
2SK880 Y
C127
8 P
5 P
R89 10 k
R95
1 k
C124
L25
9 P
6 P 7.5 nH
L27
R97 1.8 H
1 k
L32
18 nH
R109 C150
100 k 1
R87
T: 0.0
220 k
R: 4.7
R5V
T: 0.0
R39
R: 3.3
IC1 IF IC
47
TA31136FN
R116
C166
1 16
680 k 3 P OSCIN MIXIN
2 15
C163 OSCOUT GND
3 14
Q19 4 P MIXOUT N-REC
4 13
N-DET
VCC
2SC4116 BL 5 12
IFIN RSSI
6 11
DEC IFOUT
7 10
FILOUT QUAD
*3 MULTI 8 9
FILIN AFOUT
R44
FI2
T: 0.0
100 k
ALFYM450F=K
R43
R45
R: 1.1
2 1 47
100 k
C168
5 4 3
0.1 C69
470 P
T: 0.0 C169
0.1
R: 4.9
T5V
R5V
VCC
S5V
+5V
IC5 IC6 IC7
NJM12902V NJM13403V NJM12904V
4 4 4
R144
V+ V+ V+
10 k
GND GND GND
11 11 11
TEMP
S5V
IC5
C253
NJM12902V 820 P
9
SDEC 8
10
R151
1.5 k R148 R147
82 k 39 k C251
R150
0.022
180 k
IC7
PTTI
NJM12904V
R220 SIGNAL C257
IC7
100 12 0.1
NJM12904V
PTT CDEC
14
13 10
CP4 8
R157
R154
9 R153 R152
2.2 k
T: 4.8
22 k 22 k 22 k
R: 0.0
R156
DISC
470 k
R160
R155 C259
100 DET
C260
100 k 1
470 P
DET
CP3
R171
150 k
R169
RMUT
150 k
C275
0.022 R172
C278
270 k R183
IC6 C277 R168 100 P
6.8 k
S5V
NJM13403V 0.1 470
9
13
IC6 8
14
C276 10
12 NJM13403V
0.047
BIAS
MMUT
C: 2.2
MCOT
MCIN
R237
10 k
R191 R194
BEEP
180 k 22 k
CENC0 S5V
C310
R192
0.1
BEEP0
56 k
CENC1
R200
R110 C160
13
R193 R196 R198
4.7 k
47 k 0.1 14
22 k 47 k 47 k
CENC2 12
CLO
IC5
CLI R197
NJM12902V
47 k
DUSE
Q27
R206
CBI0
220 k UNR9213J
CBI3 SENC0
CBI2
R207
CBI1
100 k
SENC1
R208
47 k
SENC2
R211 R213 2 R214
R209
1
68 k
22 k 68 k 68 k
SENC3 3
IC5
R212 R215
68 k 68 k
NJM12902V
11 - 1
VCC
T5V
VCO5
C: 4.2
R79
RX VCO
6.8 k
C: 3.9
R85
L26
6.8 k
10.5 nH
Q14
C126
R80
12 P 2SC4226 R25
560
1 k
C102
L40
L42
5 P
0.82 H
1.8 H
R83
TX VCO
6.8 k
Q11
R84
2SC5107 O
R82
6.8 k
4.7
5 1
Q13
C123 2
Q16
2SC4226 R25
18 P
4 3 T: 0.0
15 P UNR9213J
R: 4.9
L23 R88
Q15
L43
560
0.82 H
1.8 H
680 XP1214
MP3
T: 2.4
R: 0.0
R5V
C49
T: 0.0
5 P
T: 0.0 R: 4.4
2 P
R: 4.7
FI1
C61 FL-335
C41
MIX
100 P C58 R33 46.350 MHz
5 P
0.001 150
2 1
C62
82 P
Q4 Q3
2SC4215 O
3SK299 U73
T: 0.0
IF AMP
T: 0.0
Q26 R: 0.8
R: 4.7
UNR9213J
C64
0.01
C: 4.9
T5V
+5V
+5V
IC8
M62363FP-650C
C244
0.1
1 24
VIN1 VIN8
2 23
VOUT1 VOUT8
3 22
VOUT2 VOUT7
4 21
VIN2 VIN7
5 20
VDD GND
6 19
LD RESET
7 18
CLK VDAREF
8
17
DI DO
9 16
VIN3 VIN6
10 15
VOUT3 VOUT6
11 14
VOUT4 VOUT5
12 13
VIN4 VIN5
R303 C356
4.7 k 4.7
R5V
R143 R186 C289
C279 R173
15 k 4.7 120 k 82 k 0.1 C: 2.2
R176
150 k
R174
IC6
100 k
NJM13403V
T5V
IC10
R175 6
BD5242G
CD4066BPWR 220 k 7
R177
5
1 I/O1 14 33 k R178
VDD
13 120
2
O/I1 CONT1 C285
R181
3 12
O/I2 CONT4 0.1 47 k
4 11
I/O2 I/O4
5 10
CONT2 O/I4
6 9
CONT3 O/I3
7 8 R252
VSS I/O3
10
X3
C344
CR-764
15 P
BIAS
C326
C284
100
0.1
T: 0.0
R: 7.2 1
NC POUT
2
R227 R228 VCC PWGND
3
NC PREGND
10 k 1 k
4
VIN PHASE
5
Q30 RIPPLE NF
2SA2048TL R IC12
TA7368F
D27
T: 6.8
DAN222
R: 6.6
R234
150 k
6
Q31
7
5 XP6501 AB
R236 D29
IC5
330 k 1SS400
NJM12902V
VCC
T5V
T: 3.3
R: 0.0
C: 4.9
3
C: 4.7
T: 3.9
R: 0.0
C97
47 P
C93 C86
Q10 D14
5 P 47 P
2SC5107 O MA2S077
8 P 27 P
C100 C98 Q9 C92
Q8
5 P 12 P
10 P 2SC5107 O
RD01MUS1
10 P
Q5
T: 2.0
C302 D15
2SC3356 R25
R: 0.0
10 P
MA2S077
T: 0.0
C303
R: 2.0
AGC
0.001 Q1
C35
0.1 2SK1829
R124
470 k
R18
10 k
T: 0.0
R: 1.5
T: 0.0
R: 4.7
L38
27 nH
RF AMP
Q2
C23
3SK293
2.5 P
2 P
C40
C30 7 P
0.3 P
T: 0.0
R: 2.2
T: 0.0
R: 0.4
T: 0.0
R: 1.8
R13 R11
100 k 100 k
R22
RF AMP
10 k
C: 3.6
C: 4.9
R258
100 k
C: 4.9
CPU5
R256
10 k
RES
5 OUT 2 1
CD
VDD
4 3
NC VSS
IC14
TEMP 1 48
PB6/AN6 P70/SCK3_2
2 47
PB7/AN7 P23
3 46
P22/TXD
AVCC
4 45
X2 P21/RXD
C348
5 44
P20/SCK3
0.1 X1
6 43
VCL P87
7 42
RES IC13 P86
8 41
TEST P85
9 HD6433687A91FP 40
VSS P67/FTI0D1
10 39
OSC2 P66/FTI0C1
11 38
OSC1 P65/FTI0B1
12 37
VCC P64/FTI0A1
13 36
R255 P50/WKP0 P60/FTI0A0
14 35
12 k NMI
P51/WKP1
CSFT 15 34
P34 P61/FTI0B0
16 33
P35 P62/FTI0C0
R254
12 k
R229
C323
10 0.047 ESCL
ESDA
10
9
8
7
6
C324
R265
47 P
1 k
R230 C325
10 10
LPF
C2
T5V ANT BOARD
C4 2 P
2.5 P 1.5 P
T: 1.7
R: 0.0 L45
17.5 nH
T: 7.1
C6 L2 L1
R: 7.2
14 nH 17.5 nH
0.001
R301
C7
ERJ2GE-JPW 0.001
L4 L3
D2
0.4-0.9-2TL
0.4-0.9-2TL 1SV307
Q7
RD07MVS1
T: 4.8 T: 0.9
R: 0.0 R: 0.0
T5V
T: 0.0
T: 2.1
APC
R: 4.9
R: 0.0
Q6
UNR9113J
C79 0.22
R8
470 k
C20 C19 L5 R5
150 k
7 P 0.001 10 k
LQW1608A22NG00
5 22 k
3
4
1
R9 270
2 R6
IC2
100 k
TA75S51F
T: 2.8
R: 0.0
VCC
J4
AXN330C038
Q33
UNR9113J PTTI
1
PTT[PTT0]
2
MCOT R284 100
3
MCIN
4
RES CP15
5
BUSY
6
NMI CP14
7
PLSW
SIGO
8
OPT1
9
NMI
OPT2
10
OPT3
11
SI R280 10 k 12
DAST[OPV3]
PTT
13
OPV2
OPT2 14
OPV1
OPT1 15
SCK
OPT3 16
SI
TLED 17
SO
PLED 18
CIRQ
19
R261
CCS
1 k R5C 20
T5C CP10 21
DISC
22
S5C
DET
DAST 23
CP11 24
BEEPO
25
NWC
AFONO
PLST 26
CP12 27
UNLK
28
+5V
RLED 29
DS1 30
Q32
T: 0.0 CL-165HR/YG
XP4216 R287
R: 4.9 YG
330 J4
3 4
TLED 2 5
HR
1 6 R288
T: 4.9
1.5 k
R: 0.0
IC15
BR24L16FV-WE2
R293
8 1
18 k
VCC A0
2
7
WP A1
6 3
SCL A2
5 4
SDA VSS KEY
NOTES :
Voltage line
Common line
TX line
RX line