Icom IC-F3GT Service Manual page 37

SECTION 12 VOLTAGE DIAGRAM
AFOUT
DISCIN
VCC
T5
R5
S5
J5
5V
R5
16 SCK S5
15 OPV1
17 SI
14 OPV2
18 SO
13 OPV3
19 CIRQ R5
BUSY
12 GND
S5
20 CCS
11 OPT3
21 REM
10 OPT2
22 AFOUT VCC
9 OPT1
to Optional unit 23 DISCIN
8 SIGOUT
R177
24 RXMUTE RMUTE
CPU5 1 k
7 MOWN C125
IC3C
25 BEEPOUT R266 C132 0.0022
R131 15 k 0.0056 NJM2902V
6 BUSY 10
470
26 AFONOP 8
5 AUX TX: 3.69 V C304 9 C217 C124
RX: 5.01 V 0.1 0.01
27 MICMUTE MMUTE D 0.047 C134
4 MICIN R105 220 P
PTT 390 : [W]
28 VCC
470 : [N] R176
3 MICOUT C209
Q17 3.9 k
29 5V 0.1 C
TX: 4.84 V UN911H R108
2 PTTOUT
30 GND RX: 0 V C133 150 k
1 PTTIN 0.1
R137 R104 R109
C147 C154 R130 10 k
100 100 k
0.047 10 100 k
MIC
VOLIN VOLIN
C223 C224 VOLOUT VOLOUT
0.01 0.01 AFOUT AFOUT
C148
TONE 0.01 BEEPOUT
D34
MA8056 M R125 R171
27 k 47 k
e only
J6
SP
1
2
5.06 V Q18
CPU5 2SB1132 R
C164
0.001 VCC
5V
R5
S5
TX: 0 V
TX: 4.97 V Q21
RX: 0.03 V RX: 5.01 V R135
2SA1577 Q 10 k
T5
MC1 Q22 C174 C158
MIC 22 10
MIC 2SA1577 Q Q19
XP6501 AB
R144
22 K R260 C294 R261 6 5 4
33 10 k 5.01 V 0.12 V
10 k
C163
0.001 Q20
PTT S3 R139
R141 DTA144 EU
SWITCH 4.7 k 1 2 3
4.7 k
TX: 0.85 V TX: 5.01 V
RX: 5.01 V C162 RX: 0.86 V C161 4.44 V
0.01 0.01
R143
TP76NOON-15F-10KA-2251 C156
R134 C159 C160 0.1
VOLOUT
2.2 k 470 P 0.01
VOL/ PWR
VOLIN
SWITCH
VCC
CPU5
S5 S5
A T5 T5
R142
(VR) R5 R5
C282 100
470 P : u KR0
0.001 : [OTHER]
KR1
HV R132
KR2
J2 470
OPT KR3
MIC
EXT.MIC
R174 R140
100 k S2
15 k
D27 JPM1990-2013R
RB706F-40
C165 C166 UP DN R239
0.001 0.001 1 k
AFOUT KS4
T5
SP KS3
KS2
EXT.SP CLONE 1 2 3 P0 KS1 R5
Q31
KS0
DTC144TU
4.92 V
J3 C299 R238
470 P 1 k R190
4 5 6 P1
C167 C168 C169 22 k
47 P 0.001 0.001
7 8 9 P2
BATT
4.96 V
GND
* 0 # P3
C283 C173 C305
0.001 47 470 P
[EUR only] C249
0.01
R240
1 k S1
BDET BDET S1
JPM1990-2013R
12 - 1
R5
S5
VCC
R97 R115
R95 220 k 120 k
1 M
1.94 V
IC4 C212 R98
BU4066BCFV 0.01 180 k
R114
6 1 14 C135
I/O VDD R44 33 k: [N] 180 P
7 2 13 22 k: [W]
O/I CONT.A 10 k : [N] C213 R107 R117
C126 5 R257 3 12 18 k : [W] 2.2 150 k 13
0.0027 1 O/I CONT.D 1.5 k
4 I/O I/O 11 14
5 10 12 R99
IC3B CONT.B O/I
R94 6 9 C214 R113 12 k
NJM2902V CONT.C O/I R116
R93 1 M 7 8 R112 0.033 68 k IC3D 1 k
VEE I/O 1 M
27 k NJM2902V
R96 R168 R169 R170 R159
C286 C131 C128 10 k 10 k : [N] C136 100 k C137
47 k 10 k 0.0056
0.0022 0.01 1 12 k : [W] 0.033: [N]
0.027: [W]
R100 C129
1.8 k 15
VOLIN
VOLOUT VOLOUT
AFOUT AFOUT
C215 TX: 5.0 V
0.1 RX: 0.01 V
SQLIN
CPU5
5.01 V R182
VCC VCC NTCCM20124AG473JCT
5V CPU5
L33
5.02 V IC10
1.0 H
R150 C123
M62363FP-650C
470 0.001
1 24
VIN1 VIN8 R103 R215
T1 2 23 R148 C197 12 k 100 k
3 VOUT1 VOUT8 22
T2 VOUT2 VOUT7 100 k 0.1
T3 4 21
VIN2 VIN7
T4 5 20 R146 R216 C231 R181 C232
VDD GND IC11
DAST 6 LD RESET 19 12 k 100 k 0.1 100 k 0.1
SCK 7 18 S-80942ANMP-DD6
CLK VDAREF
SO 8 17
DI DO
9 16 R147 X2
VIN3 VIN6 12 k
10 VOUT3 VOUT6 15 1 OUT CD 5 CR-663
11 14 2
VOUT4 VOUT5 VDD
12 13 3 4 D14 C195
VIN4 VIN5 VSS NC MA77 56 P
R102
10
C230 C144 C196 C193 R101 C194
0.022 0.001
470 P 8 P 1 M 15 P
C155
10 R153 R152 R154 C244 C236
470 k 470 k 470 k 0.01 0.01
IC7
HN58X2464TI: [100ch]
R164
HN58X2432TI: [OTHER] R226
R220 100 k 1 k
270 k 8 VCC A0 1
7 2 SCK
R218 R219 WP A1
120 k 120 k 6 3 SI
DTMF SCL A2
5 4 SO
3.8 V SDA VSS
DAST
R213
Q36 470 R228 CLOUT
2SC4116 GR 3.8 V 10 k C245 R232
0.8 V CLIN 1 k
0 V 0.01
R225 PLST
C248 R221
0.01 330 k 100 k R234 NOIS
IC13 22 k
TC7S66FO R231 CIRQ
CTCSS
1.5 V 22 k BUSY
CTDA2 CCS
5 1 0.4 V OPT1
R230
3 56 k OPT2
4 R206 DTCS CTDA1
IC12A 470 k C250 1.2 V OPT3
R268 0.01 R229
NJM2904V 2
R211 100 k 0.4 V 180 k
R192 120 k IC12B CTDA0
22k C201 R198 R199 NJM2904V
3 8 0.1 18 k Q35 REM 4.8 V
R191 47 k DTCS
22 k 1 6 2SC4116 GR 4.4 V
2 7 R227
R203 R202 R243 R242 R241
4 5 47 k 1.4 V
R197 C200 47 k 47 k 1 M 1 M 1 M
C222
0.1 220 k 0.033 R224 1.0 V
27 k
C228 C227 CTCSS
C219 4.5 V
820 P 0.1 0.0082
R200
47 k
C202
0.01 R212 C198 1.2 V
R194
68 k 2.2 100 k
R193
Q38 100 k
4 3 R267 R207 R165
C221 C216 DTC144EU 100 k
C225 47 k : [N] 0.1 47 k
0.039 0.0047: [N] 2
100 k : [W]
0.0068: [W]
5 1 DUSE
Q40
XP1213
AFOUT AFOUT
DISCIN DISCIN
VCC VCC
T5 T5
R5 R5
S5 S5
5V 5V
R5 R5 R5
S5 S5 S5
R48
C72 10 k : [OTHER]
1 1 k : [L]-[W]
DBAL
R51 R50 R49
100 k 470 k 47 k
FRQCON
C71 C70
VCC 0.1 0.01
IC5
VOLMIN — VOLMAX 3.31 V
Q15 TA7368F C153
7.23 V — 7.07 V 100 D7
2SB1132 R 1SV288
1 10
NC POUT W8
TX: 0 V TX: 0 V 2 VCC PWGND 9
RX: 4.62 V RX: 3.96 V 3 8
NC PREGND
4 PHASE 7
VIN R223
Q16 5 NF 6 100 k
1.94 V R126 RIPPLE
R120 XP6501 AB 10 k
6 5 4 PLST
68 k
SCK
R127 R128 SO
R122
D26 2.7 k 33 10
R178
DAN202K UNLK
3.9 k
1 2 3 C55
C149 C293 L14
0.1 0.01
0.1 82 nH: [H]
47 nH: [L]
C150 C151 C152
10 47 P 0.047
R145 C139 R121 C140 R123 C145 C146 C171 C62 C61
R41
1 M 0.1 1 k 0.1 3.3 k 10 0.001 0.1 9 P : [H] 18 P: [L] 47 : [L]
TX: 0 V 18 : [L] 12 P: [H] C60
0.001 100 : [H]
RX: 3.96 V
VOLOUT
AFOUT
LVIN
TX: 0 V
RX: 4.99 V
R265
BDET 100 k
SQLIN
C302
0.1
CTCIN DS2
LNJ310M6URA
REMO
DEV
TEMPS 1.5 V (Light ON)
DS3
LNJ310M6URA
R204
3.3 k S5
Q25
R5
2SC4116 GR
R89
1.2 k
R205 R155 C56 R90
1.5 k 100 0.01 680 k TX: 0 V
RX: 3.47 V
C51
L13 C65 C67
47 P
1 1.0 H 2 P 10 P
VIN PB0/AN0 P97/SEG40 75 SEG12
2 P96/SEG39 74 SEG11
AVSS
3 P95/SEG38 73 SEG10
TEST
4 X2 P94/SEG37 72 SEG9 FI2
5 P93/SEG36 71 SEG8
X1 SFPC450G: [N]
6 P92/SEG35 70 SEG6 Q10 SFPC450E: [W]
VSS
XIN 7 P91/SEG34 69 SEG5 2SC4116 GR C53 C66 L25
8 OSC1 18 P 18 P 1.0 H
XOUT OSC2 P90/SEG33 68 SEG4
RESET 9 P87/SEG32 67 SEG3
RES SQLIN
10 P86/SEG31 66 SEG2
NMI IC8
CSIFT 11 P20/IRQ4/ADTRG P85/SEG30 65 SEG1 R88 C121
SCK 12 HD6473877H P84/SEG29 64 SEG7 33 k: [N]
P21/SCK1 220 P: [N]
SI 13 P83/SEG28 63 UNLK 39 k: [W] 330 P: [W]
P22/SI1
SO 14 P82/SEG27 62 CTDA2
15 P23/SO1 R87 R86
DAST P24/SCK3 P81/SEG26 61 CTDA1 47 k : [N]
CLIN 16 P80/SEG25 60 CTDA0 2.2 k : [N]
P25/RXD 82 k : [W]
CLOUT 17 P77/SEG24 59 ESDA 470 : [W]
P26/TXD
PLST 18 P27/IRQ0 P76/SEG23 58 ESCK
NOIS 19 P75/SEG22 57
P17/IRQ3/TMIF DISCIN
CIRQ 20 P74/SEG21 56 AFON
P16/IRQ2 C122
BUSY 21 P73/SEG20 55 TXC 220 P: [N]
CCS 22 P15/IRQ1
P14 P72/SEG19 54 T5C 330 P: [W]
OPT1 23 P71/SEG18 53 R5C
P13/TMIG
OPT2 24 P70/SEG17 52
P12/TMOFH R246 R245
OPT3 25 P11/TMOFL P67/SEG16 51 R237 C296
100 k 100 k 1 k 0.001
AFOUT R136 100
S5C
DUSE
MMUT
RMUT
R236
1 k
R235
C297
680 k CONT MMUT
0.001
RMUT
OPV1
OPV2
OPV3
R195 R196
100 k 100 k
C199
0.1
VCC
T5
R5
S5
5V
R175
1 k
X1
CR-664A: [OTHER]
CR-671A: u R185 C211
C69 1 k 0.1
(15.3 MHz)
68 P
R45
100
C63
39 P C234
0.001
R31
C64
4 P 1 k
CP1
(LV check ponit) TX: 0.97 V
1 GND1 20 RX: 1.03 V
VCC1
2 IN2 19
IN1 C46
3 VCC2 18
ENB Q34 0.001 Q11
4 CLK XB 17
5 XI 16 2SK1069 4 XP6501 AB 4.72 V VCC
DATA
6 XO 15 R151
T1 6 1 T5
7 LOK GND2 14 47 k
8
CP1 CP2 13
9 FI2 12 TX: 5.03 V 5 2
FI1 RX: 0.05V
10 FO2 11
FO1 R184 4 3
10 k
C300 R28 3.58 V R23 R21
IC1 3.57 V
C233 R186 0.001 100 100 100
PD3140GS 0.001 C301
47 k 0.001 1.44 V
R30
C54 4.7 k L10
0.001 C290 TX: 0 V C50 C39
TX: 1.92 V 10 C37 R27 0.15 H : [L]
15 P RX: 3.24 V 2 P 470 0.001
RX: 1.98 V R22 0.1 H : [H] 3.59 V
Q8
68 k
2SC5085 Y
L12 L11
2.7 H R26
MC152-E558CN-100024 4.7 k
R35 R34 R32 C32 L9
C45 R20
680 10 R33 560 0.001 0.15 H : [L]
180 P : [L] C33 68 k 0.1 H : [H]
2.2 k 82 P : [H] C36
C47 C218 L34 0.001
0.001
C49 0.1 0.001 2.2 H
0.33
D28 R29 D6
C48 MA77 D5 C34
1 k MA2S077 C38 R25 C31
2.2 HVC350B 4.7 k 0.5 P 5 P C30
2.5 P
D13 C35 22 P
HVC350B 0.001
TX: 0.85 V C41
R264 Q7 Q6 Q5
RX: 0.47 V 150 k : [N] Q32 C42 C44 39 P: [L]
2SC5085 Y 2SC4215 O 2SC4215 O
68 k : [W] DTC144EU 470 P 0.001 30 P: [H]
5V
R249
1LO
47 k
R208 C235 C229 R209
C295 TX: 1.39 V
0.001 10 k 0.1 0.001 100 k
RX: 2.47 V
S5
R5
R84 TX: 0 V
R244
390 RX: 3.64 V 100 k R81
X3
R85 1.5 k R77
1.5 k CDBCA450CX24 100
TX: 0 V TX: 0 V C106 R68
RX: 2.3 V RX: 4.58 V 4.7 k
R82 56 P: [N]
C117 3.9 k: [N] 47 P: [W]
IC2 2.2 k: [W]
0.001
TA31136FN (D)
L20
C111 C108 0.47 H: [N]
1 16 0.01 C107
O I 2 OSCIN MIXIN 15 0.01 0.001 0.56 H: [W]
OSCOUT GND
3 14 Q13
MIXOUT N-REC C116 FI1 (31.05MHz)
4 13 82 P: [N] 3SK239A 0 V 0 V
VCC N-DET R253 R80 FL-311: [N] C98 C97
5 IFIN RSSI 12 120 P: [W] C109 5 P 5 P
6 11 470 100 k FL-312: [W]
DEC IFOUT 0.001 TX: 0 V
7 10
FILOUT QUAD RX: 0.53 V C102 L21
8 9 15 P 47 nH
FILIN AFOUT R262
R83
C115 1 k : [N]
470 0.01 1 : [W]
C303 R79
0.001
560 : [N]
Q14 1.2 k : [W]
C120 C119 C118 C114 C113 C112 2SC4215 O C110 R75 C105 C104 R72 R70 L29 C101 C100
0.1 1 0.01 L19
0.033 0.001 0.001 9 P: [N] 120 0.01 0.001 10 k 100 k 0.1 H 56 P 39 P 68 nH : [L]
1 P: [W]
56 nH : [H]
F (DET)
1 COM4
2
COM3
3
COM2
4 COM1
SEG1 5
SEG1 NOTE
SEG2 6
SEG2
SEG3 7
SEG3
SEG4 8 SEG4
SEG5 9 [L] : L-band [W] : W-type
SEG5
SEG6 10
SEG6
SEG7 11 SEG7 [H] : H-band [N] : N-type
SEG8 12
SEG8
SEG9 13
SEG9
SEG10 14
15 SEG10
SEG11 SEG11
SEG12 16 DS1
SEG12
SEG13 17 LM-7045B
SEG13
SEG14 18 SEG14
19
SEG15 SEG15
SEG16 20
SEG16
SEG17 21
SEG17
SEG18 22 SEG18
SEG19 23
SEG19
SEG20 24
SEG20
SEG21 25 SEG21
SEG22 26
SEG22
COM1 27
COM1
COM2 28
29 COM2
COM3 COM3
COM4 30
COM4
VCC
T5
L26 R160
4.03 V 150
3225 H L5
R19 R255 TX: 1.69 V
R15 R13 56 10.5 nH C288 C204 RX: 0.03 V
100 100 33 C20 0.001 0.001
3.37 V TX: 4.62 V 0.001
RX: 0.04 V
C289
C29 R18
0.001 39 k 47 P
L24
L6 C19 C21 C14 L32
39 nH 15 nH : [OTHER] 2.7 H
0.001 4.7 0.001
L8 C26 17 nH : e L4 C8 L2
R14 L7 R3
0.1 H 0.001 2.2 k 50 nH 0.001 28 nH
4.7 k 0.1 H
R12
C24 3.3 k C4
TX: 0.7 V 0.001 L31 C281 C205 D1
Q3 7.5 nH 0.001 MA77 9 P : [H]
RX: 0.73 V 0.001 5 P : [L]
C280 C15
2SC5085 Y 47 P R5 R2
82 P 22
C27 D3 C25 Q1 C284 2.2 k
Q2 5 P: e only C287 C278
18P MA77 6 P 2SK2974
C22 2SK2973 20 P 20 P
27 P
R16 R7
TX: 2.16 V D32
1 R11 100 TX: 2.17 V RB706-F40 C5
RX: 0.53 V RX: 0.53 V
D4 1.2 k D33 18 P: [H]
C28 MA77 24 P: [L]
12 P R17 L28 C13 RB706-F40
0.001 C285
1 k 82 nH 56 P: [L]
Q4 R9 R161 C252
TX: 0.8 V C17 10 k 47 P: [H] 0.001
2SC4215 O RX: 0 V 39 P: 22 k
0.001 e R162
22 k
C251
R10
C298 C18 0.001
27: [L] 0.001 C10
82: [H] 4.7
0.001
C23
0.001
S5
S5
R5
R61
W7
R69 47 : [OTHER] TX: 1.68 V Q37
100 470 : e
C179 RX: 5.03 V DTA144EU
0.01
TX: 0 V
RX: 4.76 V L18 R210
C99 R222 R258 TX: 0 V C73
56 nH: [H] 10 k 33 k 0.1 3.9 k
0.001 C90 RX: 3.57 V TX: 0.83 V
0.001 68 nH: [L]
RX: 0.01 V
TX: 1.67 V
C277 R52
Q12 RX: 3.73 V
1.5 P : [L] C80 330 k
D12 3SK293 2 P : [H]
C94 C91 C89 C83 2 P : [L] L22 L15
HVU350 7 P 5 P 0.001 1 P : e 1 P 3 P : [H] 50 nH 50 nH R53
4 10 k
2
TX: 0 V TX: 0 V
D11 RX: 4.76 V D10 D9 C79 1
RX: 2.43 V HVU350 5 P 3
HVU350 HVU350
11 R54
R187
1 k : [L] C138 R252 180 k
R64 IC3A
R66 100 k: [H] 0.001 100 k
100 k R62 R57 NJM2902V
100 k L17 100 k 100 k
C96 C92 C86 C85 C81 L16 C78 D8 D2 C52 C76 D29 C75 R251
C88 C87 R59 68 nH: [L] 5 P 180 P
180 P 100 P 0.001 0.01 470 58 nH: [H] 100 P 68 nH: [L] 10 P MA77 MA77 22 P 8 P MA8030 H 0.1 330 k
58 nH: [H]
R67 R65
100 k 100 k
C82
C95 C93 R63 C84 R58
0.001 470 P
0.001 0.001 100 k 100 k
e : ETS/CEPT version [100ch] : 100ch. version
u : EIA/TIA version
CHASSIS
L1
32 nH
ANT
C2
6 P : [H]
9 P : [L]
C1
C3
30 P
C1 R1
15 P: [H]
82 k
22 P: [L]
TX: 1.61 V
RX: 0.67 V
C243 R163
470 P 2.2 k