Icom IC-F3 Service Manual page 46

SECTION 11 VOLTAGE DIAGRAM
11-1 IC-F3/S
5V 5V
J5
C223
1 30
GND 0.01
PTTIN PTTIN
T5
5V
R5 S5
PTTOUT PTTOUT
VCC VCC
MICOUT MICOUT
5.0V
MICMUTE
MICIN MICIN
AFONOP AFONOP
NC
Q18
BEEPOUT BEEPOUT
2SB1132R
NC C224
RXMUTE 0.01
NC
DISCIN DISCIN
OPTIONAL
SIGOUT SIGOUT
UNIT Q22 Q21 Q20
AFOUT R258 100 AFOUT R135
2SA1588 2SA1588 2SA1588 10k
OPT1 OPPD
NC
W7 A IROCH
OPT2 TX: 5.0V RX: 5.0V 5.0V
CCS OPCS
OPT3 W8 B
CIRQ OPINT + + + Q19
+
XP6501AB
GND
6 5
SO SO 4
NC
C177 C176 C175 C174
SI SI 22
22 22 22
NC 5.0V
SCK 3 2 1
R141 R139 R137
NC
4.7k 4.7k 4.7k
15 16 Q29
R133
XP1213 10k
1 5 MM C162 C161 C160
0.01
2 0.01 0.01
C159
0.1
3 4 RM
R134 C158
2.2k
100
T5C R5C R5C S5C
MC1
KUC3523-040245
MIC
C163
0.001
R144
33k
R240
1k 4
KR3
S1
JPM1990-2013R MIC
PTT KR2
VR BOARD
KR1
9.6V KR0
J7
HV
1
R1 RV-312 VOL IN VOLIN
2
VOL OUT VOLOUT
3
C180
VOL GND
4 47p
VCC
5 R241
R142 1k
VR KS5
100
9.6V P0 P1 P2 P3
D16
(SW ON) MA6S121
J2 C282 KS4
R132
HSJ1122-010010 0.001 C181
470 R242
OPT 47p
1k
1 2 3 A
EXT. MIC MIC C283
0.001
C165 R243
0.001 C166
1k 4
0.001
AFOUT C182 KS3
47p
SPEAKER
P1 J6 KS2
W5 4 5 6 B KS1
SP
1 1
C172 KS0
SPG L30 470p
2 2
C164 EXCCL
W6
0.001 4532U C183
SP1 47p
+ C173
47
7 8 9 C
J3
HSJ1456-01-220A
D27
AF OUT
DA204U R174
SP 15k
C184
47p D18
CLONE MA111
IR1
* 0 # D
EXT. SP
IC-F3 only
C167 C168 C169
D17 IC-F3S=open
47p 0.001 0.001
MA6S121 C275
Q31 0.001
C185
DTC144TU
47p
Q27
2SB1132R C186 C187 C189 C190
J4 D25 0.001 0.001 0.001 0.001
HEC2711-01-020 R156
SB07-03C
15
CHARGER
R157
15
C170
0.001
C202
C200 0.001
0.001
D24 R158
DA204U 10k
C201
C203
0.001
0.001
LEFT SIDE
11 - 1
TONE SCK
MODCON
9.6V
VCC
VCC
CPU5 CPU5
TEMPS
R182
VIN
R250 IC10 NTCCF20124AH R215
IC11
10k M62354GP 330k
S-80742SL-A6
1 R106
C242 DO VCC 16
1k 4 5 4 CL IN
0.01 2 15
LD VDD
R181 C232
3 AO6 14
CLK 100k 0.1
R154 4 13 C197 R216
DI AO5
6.8k 470p 150k
5 12 R103
AO1 AO4 C141
18k C142
6 AO2 11 1 2 3 0.001
AO3 C231 0.001
7 10
+ R153 NC NC 6.8 MHz 0.1
C241
1k 8 9
10 GND GND
Q23 X2
R149 C195 R102
2SC4081 39p CR-463
C244 10k 10
0.01
IC6
Q26
S-81250PG-PD
DTC144EU
C230
0.47 R148
100k R101
+ 1M
D I
G R214
C193
1k 8p C194
C156 + R147 C196 12p
+ C157
0.001 0.001 220k 470p
1 PBO/AN0
CSIFT
2 AVSS
C155 C240 C239 C238 C237 R146 D15 C144
0.001 RESET 3
10 0.01 0.01 0.01 0.01 100k MA111 TEST
T1 T2 T3 T4 4
X2
5
DET MTONE DTMF SI SO CTCIN X1
6
VSS
7
5V OSC1
8 OSC2
R226 9
RES
1k 4 10
NMI
SCK
11
P20/IRQ4/ADTRG
C248 R220
R218 R219 SI 12
0.01 270k P21/SCK1
120k 120k
SO 13
P22/SI1
UNLK 14
P23/SO1
15
R221 P24/SCK3
330k C258 C261 16
47p 47p P25/RXD
ECS 1 8
CS VCC 17
2 7 P26/TXD
SO HOLD C259 C260 18
Q36 3 6 P27/IRQ0
WP SCK 47p 47p
2SC4081 19
4 VSS 5 P17/IRQ3/TMIF
SI R232
20
1k 4 P16/IRQ2
C245
21
0.01 P15/IRQ1
CL IN
22
2.5Vp-p 2.0V IC7 P14
CL OUT
X25080SI-2.7 [16 ch] 23
P13/TMIG
25LC160T-I/SN [2-BANK] PLST
24
P12/TMOFH
NOIS
25
P11/TMOFL
C262
47p
5V
R5 R233
C263 C257 1k 4
47p 47p
R199 R198 R197 OPINT
3.9k 1k C198 180k
ECS
+ 2.2
OPPD R213
C249 1k
CTCSS
0.01 C222 OPCS
Q33 XP4601
0.1 Q35
4 3 C276
C250 2SC4081 R228
C254 47p
0.01 C251 100k
5 R203 47p
2 47p R235
12k 680k
R191 R192
6 1 R224
10k 10k 33k [W], [M] C253 C252
39k [N] 47p 47p
C228
0.01 IROCH
R194 R195
R190 C292 R207
0.1 47k 100k 100k
C225 39k R200 R201 C221 C227
56k
0.022 1k 0.01 0.1
R227
1k R193
R202
100k
12k
Q38
CTDA
DTC144EU
DUSF
IR1
MAIN UNIT
5V
T5
R5
S5
VCC
C274 FRQCON
0.001
DS2
LNJ310M6URA
R183
560 CTCSS
C273
0.001
DS3
LNJ310M6URA
R234
C143 22k
0.001 LVIN
Q25
2SC2712
DS4
R204 LNJ808R8ERA
3.3k
PLST
R155 SCK
R205
100
1.5k SO
UNLK
DS1
LM-1462B
COM1 1
75 SEG40 COM1
P97/SEG40
COM2
P96/SEG39 74 SEG39 2
COM2
73 SEG38 COM3 3
P95/SEG38 COM3
72 SEG37 COM4 4
P94/SEG37 COM4
71 SEG29 5 MODCON
P93/SEG36 SEG1
SEG30 6
P92/SEG35 70 SEG35 SEG2
SEG31 7 SEG3
69 SEG34
P91/SEG34
SEG33 8 SEG4
68 SEG33
P90/SEG33 SEG34 9
SEG5
67
P87/SEG32 SEG35 10
SEG6
66 SEG31
P86/SEG31 SEG37 11
SEG7
P85/SEG30 65 SEG30 SEG38 12
SEG8
IC8
P84/SEG29 64 SEG29 SEG39 13 SEG9
HD6433875A40H [16 ch] R217 1k DUSF
63 SEG40 14 SEG10
P83/SEG28
HD6433875B26H [ 2-BANK] SEG41 15
62 CTDA2 R231 10k CTDA SEG11
P82/SEG27
SEG42 16
CTDA1 R230 27k SEG12
P81/SEG26 61
SEG43 17
R229 68k SEG13
60 CTDA0
P80/SEG25 SEG44 18
SEG14
59
P77/SEG24 SEG45 19 SEG15
58
P76/SEG23 SEG46 20 SEG16
C226 C246 C272 SEG47
P75/SEG22 57 0.047 0.033 47p 21 SEG17
SEG48 22
56 SEG18
P74/SEG21
SEG49 23
55 SEG19
P73/SEG20
SEG50 24
SEG20 DISCIN
P72/SEG19 54
SEG51 25
SEG21
P71/SEG18 53
SEG52 26 SEG22
52 27
P70/SEG17 SEG23
R236 1k 4
51 28
P67 /SEG16 SEG24
DST
29
SEG25
T5C 30
SEG26
S5C 31 SEG27
5V
R5C 32
SEG28 AFOUT
33
SEG29
34
SEG30
35
SEG31
C264 C265 C266 C267
47p 47p 47p 47p 36 SEG32
37 COM4
R237 1k 4
38
COM3
AFON
39
COM2
TXC 40
COM1
RM PTTOUT
MM
R245 R238
R196
100k 100k
100k
C268 C269 C270 C271
47p 47p 47p 47p
MIC
C199
0.01
CENTER
Note
[L] ..... L-band [W ] ..... W-type
e .... ETS/CEPT version
[H] ..... H-band [ M ] ..... M-type u .... EIA/TIA version
[ N ] ..... N-type
VCC
TX 174 MHz : 4.3V
R51 R50
R185 RX 174 MHz : 3.6V
470k 100k 1k Q11
R49
C69 2SC4081
47k 33p
C71 Q34 CP1 4.0V
0.1 15.3 MHz 2SK880 R30
4.7k
X1
R48
CR-575A e
10k R45 D19
CR-576A u
D7 100 MA111
R150 C72 HVU17 R28 R23
R175 R31 100 680
50k 1 C70
R184 1k 1k
0.01 C64 C63 C234 C233
12p 56p 10k R186
0.001 0.001
47k C50 +
10 C37
C39
2p [L] R27
0.001
1p [H] 470
5V
Q8
C211 R26 2SC4226
C46
0.001 0.001 8.2k
1 20
R42 VCC1 GND1
C55 C32
1k 4 0.01 2 19 R151
IN1 IN2 0.001
R35 R34 R32 L12 47k L11
3 VCC2 18
ENB 2.2k 10 560 2.7 H MC152-E558CN-100024 L10
17 C36
4 XB 0.001 0.15 H [L]
CLK C45
5 16 0.1 H [H]
XI 330p [L] R22
DATA 15 C33
C59 6 XO 100p [H] R24 68k
47p T1 R33 0.001
7 14 220
LOK GND2 2.2k
C58 8 13 R29 D6 R25
CP2 8.2k C34
47p CP1 1k MA77
L14 9 12 C54 0.5p
FI2
47nH [L] 10 11 0.001 C48 C47
82nH [H] R41 FO2
FO1 2.2 0.1
47 [L] C49 C218 D28
100 [H] 0.68 0.001 C35
MA77 C38
1.5p 0.001
C60
IC1
C62 C61 0.001 C57 C56 Q32 DTC144EU C42 C44 C41 D5 D13 Q7 Q6
47p 0.001 PD3140GS
18p [L] 18p [L] 0.001 0.001[L] 39p HVU350 HVU350 2SC4226 2SC4215
9p [H] 12p [H] 0.0033 [H]
C229
R208 0.001 R209
R5 10k 10k R5
S5 S5
C51 C65 C67 R84 X3
15p 4p 10p 3.6V CDBCA450CX24
390
R81
R77
R82 1.5k
R85 IC2 R244 1.2k [W] 100
C117 2.3V
1.5k TA31136FN(D) 0.001 100k 1.5k [M]
FI2
2.7k [N] C108
L13 CFWM450E [W], [M] C107 C106 L20
C53 C66 L25 1 16 0.01
1 H CFWM450G [N] OSCIN MIXIN 0.001 56p 0.47 H
C290 12p 18p 1 H
2 15 R253 FI1
15p OSCOUT GND
O I 3 470 FL-270 [W] 0V
MIXOUT N-REC 14 C116 C109
82p [W], [M] FL-268 [N], [M]
4 VCC 13 0.001
N-DET 100p [N]
5 IFIN RSSI 12 Q13
C123
R88 6 11 C111 3SK166
0.001 120k DEC IFOUT
0.01
7 QUAD 10 C115 R72 R70
FILOUT 100k
R91 C121 8 9 0.01 R80 R75 C105 10k
FILIN AFOUT 100k 220
390k [W], [M] 220p 0.01
R86 R83
100k [N] R87
3.3k 100k 470
C118
C110 L29
R92 0.01 R79 C104
50k C122 C120 C119 560 9p [W] 0.001 0.1 H
220p 0.1 1 C114 C113 C112 11p [N], [M]
1.3V
0.033 0.001 0.001
Q14
W10 F W9 E 2SC2714
NOIS SD DET
VCC
DET
R5
S5
C125 R166 R167
R95 100k 100k
R177 0.0022 IC4
1M
IC3c 1k BU4066BCFV
R131 C124
470 NJM2902V 0.01
6
C132 —
7 1
0.01 C217 C126 I/O VDD 14
10 5
+ 0.1 0.0027 + 2 13
8 O/I CONT.A
C154 + 9 R96
Q17 — 47k 3 O/I CONT.D 12 R44
10 10k
UN911H C134 4 11
I/O I/O
R104 220p
W1 IC3b 5 CONT.B 10
100k R105 NJM2902V O/I
R112
150 6 CONT.C O/I 9
D R176 1M
R93 R94 R257 7 8
C147 R108 3.9k 27k 1M C286 VEE I/O
0.1 1M
C133 150k 0.0022
R130 0.1 R109
100k C128
10k C131
0.01 1 R168 R169
W2 10k 10k
C
C209 C210
0.1 0.1
R171 C215 C148 R125
PTTIN MICIN MICOUT VOL IN BEEPOUT 47k 0.1 0.01 27k TONE
MM R5C RM CTCSS
VCC
T5
R161
0.15
C8 L3 L2 L1
0.001 LA-225 LA-225 LA-226
R13 R162
R3
33 1k 1k
R160 C6
C24
0.001 150 12p [L] C4 C2
Q28
L26 10p [H] 5p 5p
R21 R19 2SC4081 C21 C20
470 390 R15 3 2 1 + C281 EXCCL3225U
33 0.001
100 0.001
L24
L27
EXCCL3225U 2.7 H
C204
C19 0.001 C7 C5 C3 C1 R1
4 5 6
0.001 12p [L] 18p 20p 7p 82k
C26 R163 C14 C289 15p [H]
L7 Q9 R255 C288
0.001 15k 0.001 47p
0.1 H 47 0.001
XP6401 L6
L5
R2 47nH Y655LY-03K=P3
L9 C9
R12 10k
0.15 H [L] R14 0.001
L8 4.7k 3.3k C15
0.1 H [H] Q2 Q1 L4 L23
R20 0.1 H R16 C10 33p C205 D1
R18 C22 L28 2SK2596 2SK2595 17nH 39nH [L] 0.001 MA77
68k 1 0.001
C29 39k 15p 68nH 33nH [H]
0.001
C25 C280
C287 C278
22p 24p R7 C11
15p [L] 12p [L]
D3 R9 100 R5 R4 39p [H] 56p
Q3 10p [H]
MA77 10k 100 22
C28 2SC4226
12p C27 C13 C79 L22 L15
C30 18p C18 R8 C17 0.001 4p 47nH 47nH
R11 C23 R10 0.001 4.7k [L] 0.001 C12
22p
1.2k 0.001 27 [L] 12k [H] 0.001
C31 R17 82 [H]
5p
4.7k
L16
54nH C52
Q5 Q4
22p
2SC4215 2SC4215
D4 C80 C78 D8
MA77
5p [L] 10p MA862
1LO 3.5p [H]
R5 Q37
S5 S5 DTA144EU
R61
Q12 3SK239A
R68 47
R69
4.7k
100
L18 R222 C179 R210
C90 3.9k
C99 33nH 10k 0.01
0.001
0.001 C73
4.8V 0.1
C98
C94 C89 C277 C83
5p R52
2p 0.001 1.5p 1p
100k
D10
C102 L21 D9 R53
HVU350 HVU350
15p 47nH D22 D12 D11 D21 10k
R252 L17 4 2
HVU350 HVU350 HVU350 HVU350 R187 —
L19 100k R59 C138 100k 54nH 1
33nH
180 0.001 3
C96 C92 C85 C235 C81 +
100p 100p 120p 0.75p 100p 11 R54
R55 180k
R66 [L] only 1k
R64 C291
C97 1M 1M C91 C88 C87 C86 R62 R57 0.001
C101 C100 R67 R65
56p 15p 8p 8p 0.001 0.01 9p [L] 1M 1M
100k 100k D29 C243
5p [H] C75 R251 0.001
MA8030 0.01 330k
0.9V R63 R58
C95 C93 0V
100k 100k IC3a
0.001 0.001
NJM2902V
C84 C82
T4 T3 T2
0.001 0.001 T1 T4 ISENS
VCC
S5
7.0V
Q15
2SB1132
R97 R115 120k IC5
220k C171 TA7368F C153
R99 R178 0.1 220
C212 C135 12k 3.9k 1 10 +
R98 NC POUT
0.01 180k 180p
R114 6 5 4 2 PWGND 9
22k [W], [M] Q16 VCC
8
R107 33k [N] XP6501AB R122 3 PREGND
C213 R117 1.9V NC R128
180k — 2.7k 4 7 10
2.2 14 1.5k R120 VIN PHASE
13
68k 5 6
C214 R113 12 + C284 2 3 RIPPLE NF
R119 1
0.033 68k 0.0033 [L] C145 R127
300 k C129 R123 R126 10k
IC3d 0.001 [H] 10 33
15 R145 R121 3.3k C146
NJM2902V + + + C151
1M 1k 0.001 C150 47P C152
R170 C149 10 0.047
10k R159 R116 R249 0.1
C136 100k 1k 47k R100
0.0039 1.8k C139 C140
0.1
0.1
D26
DAN202U
C137
0.027 [W], [M]
0.033 [N]
VOL OUT
AFONOP AF OUT
AFON
RIGHT SIDE
J1 ANT
C76
20p[L]
18p[H]
TXC