Voltage Diagram; Main Unit - Icom IC-F43TR Service Manual

SECTION 11

VOLTAGE DIAGRAM

11-1 MAIN UNIT

C136 100 P
R122
R121 220 k
68 k
6 CP45
7
5
IC23
MICOUT
LM2904PWR
MICIN
PTTIN
PTTOUT
PTT SW
MC1
PIT
SKB–2746 LPC
CP3 R237
10
AUTX
Q38
UNR9213J
BEEP
R242 100 k
+5V
C380
R289
0.1
100 k
BEEPOUT
TONE
R241
C371
100 k 0.1
J3
HSJ1122–010010
R515
Q43
1 k
UNR9112J
VCC
AFON
Q42 2SB1132 Q
AFONOP
Q41
XP6501 AB
C336 470 P
R315
TP76N00N–15–10KA–2251
R244
R245 68 k
39 k
R246
2
6.8 k
1
C335
3
C337 0.1
IC23
1 R283
100 k
LM2904PWR
R234 10
J4
BM02B–ASRS–TF
1
SP1
2 C324
100
J2
HSJ1456–01–220A
AFOUT
SP
CLONE
D28
RB706F–40
S27
EC10SP16–47 2
8
6
4
C2
5
Q44
C1 2
4
1 UNK9210J
3
1
+5V
KS0
KS1
KS2
KS3
KS4
S21 S22 S25 S26
R291
1 k
P0 P1 P2 P3 R219
68 k
S3
SW–167
S23 S24 S7
UP 1 2 3
DTMF•Enc
KS0
R353 1 k
S4 R354 1 k KS1
SW–167 S9 S10 S11 R355 1 k KS2
R356 1 k KS3
4 5 6
DOWN
S13 S14 S15
7 8 9
* 0 #
S17 S18 S19
+5V
IC10
24LC64T–I/SN
4 5
VSS SDA
3 6
A2 SCL
2 7
A1 WP
1 8
A0 VCC
R272 100
Q45
UNR9113J
+5V
+5V
COM4
R349
COM3
1 k
SO 76
P30/TXD0
SI
77
P31/RXD0
SCK 78
P32/SCK0/SDA1
CLO
79
P33/SCK0/SCL1
CLI 80
P34/RXD1/SDA0
CIRQ
81
P35/SCK1/SCL0
S1 1 36 COM2 82
P1/S1 COM2 P36
S2 2 35 COM1
83
P2/S2 COM1 P77/TXD3
S3 3 34 S34 84
P3/S3 S34 P76/RXD3
S4 4 33 S33
85
P4/S4 S33 P75/TMO3/SCK3
S5 5 32 S32 S5C 86
P5/S5 S32 P74/TMO2/MRES
S6 6 31 S31
IC20 T5C 87
P6/S6 S31 P73/TMO1/CS7
7
S7 30 S30 R5C 88
P7/S7 S30
LC75834W P72/TMO0/CS6
S8 8 29 S29
P8/S8 TMUT 89
S29 P71/TMRI23
9
S9 28 S28 ULCK 90
S9 S28
P70/TMRI01
S10 10 27 S27
S10 91
S27 PG0/IRQ6
S11 11 26 S26 92
S11 S26
PG1/CS3/IRQ7
S12 12 25 S25
S12 93
S25 PG2/CS2
94
PG3/CS1
95
PG4/CS0
KRT0 96
PE0/D0
KRT1 97
PE1/D1
KRT2 98
PE2/D2
KRT3 99
PE3/D3
KRO 100
PE4/D4
DS3
LCD FX–2721 LCD
R239
15 k
+5V
11 - 1
TONE
R151 C170
47 k 0.1
R154 120 k
IC6 IC6
LM2092PWR LM2092PWR
R218 C174 180 P
R152 C172
68 k TONE
330 k 0.01
7 R216 8 2
5 10
R217 R215
1
68 k 68 k
68 k
3
6 9
IC6
LM2092PWR
D6 MA2S077
R262 12 k
CSFT
C348
X6
22 P
CR–774
R259
1 M
IC8
R258 S–80942CNMC–G9C
10
5
1
OUT CD
2
VDD
3 4
VSS NC
RSSI
50 RSSI
P42/AN2
LVIN
49
P43/AN3
48
P44/AN4
KEY
47 KEY
P45/AN5
46 CDEC
P46/AN6
45 SDEC
P47/AN7
44 BEEP
P96/AN0
43 SENC
P97/AN1
42
AVSS
41 DAST
P17/TIOCB2/TCLK
40 MRDF
P16/TIOCA2/IRQ1
39 MTDT
P15/TIOCB1/TCLK
IC22
38 MTCK
P14/TIOCA1/IRQ1
HD64F2238BTF13 37 MDIR
P13/TIOCD0/TCLK
36 MSCK
P12/TIOCC0/TCLK
MDIO
35
P11/TIOCB0/A21
34 PMFM
P10/TIOCA0/A20
33
PA3/A19/SCK2
32
PA2/A18/RXD2
31
PA1/A17/TXD2
30 R352 1 k PLST
PA0/A16
REF
29 R336 20 k
PB7/A15/TIOCB5
28 R337 R323
PB6/A14/TIOCA5
27 20 k 10 k
PB5/A13/TIOCB4
26 R338 R325
PB4/A12/TIOCA4
20 k 10 k
R339 R327
20 k 10 k
R340 R329
20 k 10 k
R341 R331
20 k 10 k
R342 R333
20 k 10 k
R335
10 k
R343
20 k
R344
20 k
+5V
IC13
R514
R510
TC4W53FU 100 k
47 k
1 8 R93
2 7 33 k
3 6
C35
4 5
0.0022
R509
4.7 k
1
24
VIN1 VIN8
2 23
VOUT1 VOUT8
MOD 3 22
VOUT2 VOUT7
4 21
VIN2 VIN7
R73 12 k
5 20
VDD GND
6 19
LD RESET
7 18
CLK VDAREF
8 17
DI DO
9 16
VIN3 VIN6
BAL 10 15
VOUT3 VOUT6 R74 390 k
DEVT 11 14
VOUT4 VOUT5
TONC 12 13
VIN4 VIN5
IC12
M62364FP
IC6
LM2092PWR
+5V
R156
ERJ2GE–JPW
4
V+
GND
R222
11
180 k
CENC0
R223
56 k
CENC1
R224
22 k
CENC2
CTCSS/DTCS
R210
R209
47 k
47 k
13
12
R211
LM2092PWR
47 k
+5V
DUSE
R264
4.7 k Q40
VCC
UNR9213J
BATV
OPT3
OPT1
OPT2
VCC
+5V
S1
EVQ–PUL 02K
C131 0.1 @compC
+5V
R120
47 k
EMER
MONI
R512 R513
8.2 k 47 k
R107
33 k
IC14 AK2346
R119 C130
1 24
47 k 0.1
AGNDIN TEST
2 23
AGND RXIN
3 22
TXIN RXINO
4 21
R114 82 k C414 0.1
TXINO RXLPFO
5 20
LIMLV RXAF
6 19
EXTLMIN RXAFIN
7 18
MOD EXPOUT
C128
8 17
VSS VDD 0.1
9 16
TCLK XIN
10 15
TDATA XOUT
11 14
DI/O DIR R106 1M CP4 R118
12 13
RDF/FC SCLK 33 k
X5
CR–765
C308 22
R273
3.3 k
C64. 0.001
SIGOUT
C360 0.1
R301 68 k
C223 0.1
IC19 LM2904PWR R182 R181
22 k 22 k
5
R213 R183
7
4.7 k
22 k
14 6
IC6
IC19
R214
LM2904PWR
47 k
CDEC
3
C315 0.1
1
R186 470
2
R184
R185 470 k 100 k
C225 470 P
R97
1 k
J5
AXN330C038
GND 30 1 PTTIN
2
+5V 29 PTTOUT
VCC 28 3 MICOUT
4
MICMUTE 27 MICIN
AFONOP 26 5
BEEPOUT 25 6
RXMUTE 24 7
CP46
DISCIN 23 8 SIGOUT
R203 22 9
AFOUT
220 k
REM 21 10
20 11
R288 CCS
CIRQ 19 12
4.7 k
18 13
SO
R204
SI 17 14
100 k
15
SCK 16
R205 100 k
NOTES :
Voltage line TX line
Contorol line RX line
A
B
C
D
SQLC
VCC
+5V
E