Icom IC-F43GT Service Manual page 33

A
VCC
B T5V
S5V
+5V
C404 0.01
R103 220 k IC24
R104 100 k TA75S01F 5
REF 3
4
R516 100 k
1
C211 2
1 5
4.7
BAL 2
3 4
IC25
TC7S66FU
C
LVIN
+5V
IC21
EP6
LMX2352TM
24
OUT1 CUTO
23
VCCIF VCCRF
22
VPIF VPRF
21
CPOIF CPORF
20
GND
19
FINIF FINRF
18
FINRF FINRF
17
GND
16
PLST R345 1 k
LE OSCX
SO R346 1 k 15
DATA OSCIN
SCK R347 1 k 14
CLOCK FO/LD
ULCK R348 1 k 13
IF_EN RF_EN
R359
ERJ2GE–JPW
S5V
+5V
D
R5V
C166
T: 0.0
3 P
R: 0.3
CFWM450F
C161 C163
10 P 4 P
Q22
2SC4116 BL
*3 MULTI
SQLC
VCC
+5V
R5V
S5V
T5V
E
+5V
X2
CR–781
15.3MHZ
1 4
VCON
VCC
REF
2 3
GND OUT
R108 C156
470 100 P
15.3 MHz
1.2Vp-p
R95
1.5 k
1
2
3
4
5
GND R90 470 k
6
7
8 C390
GND
9 47 P
10
11
R110
12
100 k
L32
18 nH
T: 0.0
R: 4.8 X1
CDBC450CX24
R39
47
IF IC
IC9
C61
TA31136FN
100 P
FI2
1 16
OSCIN MIXIN C58
2 15
OSCOUT GND 0.001
3 14
I O MIXOUT N–REC
4 13
C62
C393 0.1 VCC N–DET
Q7
5 12
IFIN RSSI 82 P
6 11
DEC IFOUT 2SC4215 O
7 10
FILOUT QUAD
IF AMP
8 FILIN 9
AFOUT
R44
T: 0.0
47 k R43
47 R: 4.8
C394
0.1
C69
C188
0.0012
R45 18 k 0.001
T: 0.8
R: 1.2
R5V
S5V
T5V
VCC
T5V
C: 4.0
Q20
RX VCO
2SC4116 BL
R79
R85
6.8 k 6.8 k
Q21
C126
R304
2SK880 Y
12 P ERJ2GE–JPW
R89
Q17
10 k
2SC4226 R25
CP1
L42
1.8 H
L28
1.8 H 82 nH
0.82 H
TX VCO
R83 6.8 k
R84
6.8 k R82
ERJ2GE–JPW
C123
18 P[L]
15 P[H]
Q16
L43
L27 1.8 H 2SC4226 R25
1.8 H
T: 1.5
R: 1.6
R86
C150 1 220 k
R111 R124
470 k 470 k
+5V
R5V
R31
100
T: 0.0
R: 4.4
C49
T: 0.0
5 P
R: 4.8
Q6
FI1 3SK299 U73 C41
15 P
FL–313 46.35 MHZ [F43G] MIX
FL–335 46.350 MHZ [F44G]
C51
0.001
R33
4 1
150 2 GND IN T: 0.0
3
OUT GND R32
R: 0.9
ERJ2GE–JPW
150
VCC
+5V
Q25
8 8
2SA1577 Q
V+
V+
GND
GND
4 4
T: 0.0
IC19 IC23 R: 4.9
LM2904PWR LM2904PWR
Q24
2SA1577 Q
T: 5.0
R: 0.0
C: 3.9
C: 3.8
T: 2.0
R: 0.0
T: 1.6
C102
R: 1.4 D16
5 P
1SV307
C100
10 P
Q15 Q14
7 P
2SC5006 2SC5006 Q29
2SC5006
5 1
Q18
2
XP1214
4 3
L48 R88
0.82 H 680
Q19
T: 0.0
UNR9213J
R: 2.0
R5V
R172
10 k
C182
0.001
C186
0.1
L46 C183
27 nH 15 P AGC
Q4
2SK1829
T: 0.0
R: 4.6
R174
470 k
Q5
C40
0.3 P 3SK293
C29
10 P
T: 0.0
R: 0.6
RF AMP
T: 0.0
R: 1.8
R22 10 k
C: 6.9
Q26 2SB1132 Q
C: 5.0
IC17
NJM2870
MP1
Q27
XP6501 AB
Q28
UNR9113J
11 - 2
[H]: High–band. [L]: Low–band.
Q2
TPC6103
VCC VCC T5V
T5V
APC
TX
J6
IMSA–6176S–03A
5
P–DET
Q3
D5 3
UNR9213J
DAN202U
GND
2
VCC
1
4
T5V
T: 0.0
R: 5.0
C79 0.1
D29
R8
MA2S111
470 k [F43G]
[F44G]
220 k [F44G]
R5
68 k [F43G]
27 k [F44G]
5
3 APC
4
1
R9
270 [F43G] 2
1 k [F44G]
IC16 R4
TA75S01F 270 [F44G]
560 [F43G]
Q46
UNK9210J [F43G]
C25
C22 2 P
6 P RX
CP53
CP58
R13
100 k
R303
10 k
R302
100 k
R360
10 k
NOTES :
Voltage line
Contorol line
TX line
RX line