Icom IC-F33GT Service Manual page 29

SECTION 11 VOLTAGE DIAGRAM
VCC
T5V
S5V
+5V +5V
ACZ1005Y
C515
33P
R104 R103
REF
47K 680K
5
3
X2 REF
4 1 4
R516 VCON VCC
1
IC25 2 3
IC24
100K 2 GND OUT
1 5
C211 TA75S01F
BAL 2 15.3MHZ
3 4
4.7
TC7S66FU
LVIN
L501
+5V
1U R94
IC21
0
24 1
OUT1 CUTO
23 2
VCCIF VCCRF
22 3
VPIF VPRF
R525 21 4
CPOIF CPORF
20 5
1k
GND GND
19 6
FINIF FINRF
18 7 C390 47P
FINRF FINRF
17 8
GND GND
PLST R345 16 9
LE OSCX
1k
SO R346 15 10
DATA OSCIN
1k
SCK R347 14 11
CLOCK FO/LD
1k
ULCK R348 13 12 Q500
I F_EN RF_EN
1k UNR9213J
LMX2352TM
R359
S5V
0
+5V
R5V
Q22
C161
MAIN UNIT
10P
2SC411 6
*3 MULTI
KR0
KR1
KR2
KR3
R291
KS4
S21 S22 S25 S26
1k
P0 P1 P2 P3
KEY KEY KEY KEY
S3
R219
UP S23 S24 S7
12K
SW-167
1 2 3
KEY KEY KEY R353 KS0
1k
R354 KS1
S10 S11 1k
S4 S9 R355 KS2
1k
R356 KS3
4 5 6
1k
DOWN
SW-167
KEY KEY
KEY
S13 S14 S15
7 8 9
KEY KEY
KEY
S17 S18 S19
0 #
*
KEY KEY KEY
24LC64T
VSS SDA
4 5
A2 SCL
3 6
A1 WP
2 7
A0 VCC
1 8
IC10
R349
SO
P30/TXD0
SI 1k 76
P31/RXD0
77
SCK
P32/SCK0/SDA1
78
CLO 1k
P33/SCK0/SCL1
79
CLI
P34/RXD1/SDA0
COM4 CIRQ 80
P35/SCK1/SCL0
COM3 81
P36
82
P77/TXD3
MUT E 83
P76/RXD3
84
P75/TMO3/SCK3
S5C 85
P74/TMO2/MRES
T5C 86
P73/TMO1/CS7
R5C 87
P72/TMO0/CS6
S1 1 36 COM2 TMUT 88
P1/S1 COM2 P71/TMRI23
S2 2 35 COM1 ULCK 89
P2/S2 COM1 P70/TMRI01
S3 3 34 S34 90
P3/S3 S34 PG0/IRQ 6
S4 4 33 S33 91
P4/S4 S33 PG1/CS3/IRQ7
S5 5 32 S32 92
P5/S5 S32 PG2/CS2
6 31 93
S6 S31
P6/S6 S31 PG3/CS1
7 30 94
S7 S30
P7/S7 S30 PG4/CS0
8 29 95
S8 S29 KRT0
P8/S8 S29 PE0/D0
S9 9 28 S28 96
KRT1
S9 S28 PE1/D1
S10 10 27 S27 KRT2 97
S10 S27 PE2/D2
S11 11 26 S26 KRT3 98
S11 S26 PE3/D3
S12 12 25 S25 KR0 99
S12 S25 PE4/D4
100
DS3
100
R272
LCD
S11188
Q45
UNR9113J
+5V
S5V
R5V
T5V
VCC
11 - 1
R98
Q20
2SC4116
Q21
R89 C191
10K 47P
2SK880
L28
4.7U
L47
33N
R95
1.5K
C192
220P
C146
ECPU1E473KB5
L27
4.7U
C508 C208
L48
5P 5P
68N
R111
100K
180K 390K
R110 R308
R39
CDBKB450KCAY24
R35
47 C75 100
10
C166
IF IC X1
IC9
3P 1
FI2 16
OSCIN MIXIN
CFWM450F 2 15 C61
OSCOUT GND
3 14 100P
I O MIXOUT N-REC
4 13
C393 0.1 C62
VCC N-DET C58
5 12
IFIN RSSI
6 11
0.001
DEC I FOUT 82P
7 10 Q7
C163
FILOUT QUAD
8 9 2SC4215
FILIN AFOUT
R44
IF AMP
4P C394
TA31136FNG
47K
0.1 R43
C188
47
C69 R45 0.001
0.0012 18K
R230 R218 R217 R216 R215
R152
10 TONE
39K 68K 68K 5 68K 68K
7 8
270K
IC6
IC6 9
6
DTMF
Enc
+5V
IC6
MA2S077 R262
CR-774
CSFT
D6
X6 12K
C348
22P
R259
R222
1M CENC0
180K
IC8
R223
S-80942CNMC
CENC1
10
1 5
OUT CD 56K
2
R258 VDD R224 R209
C352
3 4 CENC2
VSS NC
0.027
22K 47K
BATV
RSSI RSSI
P42/AN2
50 LVIN
P43/AN3
49
P44/AN4
48
KEY KEY KEY
P45/AN5
47
P46/AN6
46 SDEC
P47/AN7
45 BEEP
P96/DA0
44 SENC
P97/DA1
43
AVSS
42 DAST
P17/TIOCB2/TCLK
41 M RDF
P16/TIOCA2/IRQ1
40 MTDT
P15/TIOCB1/TCLK
39 MTCK
P14/TIOCA1/IRQ1
38 M DIR
P13/TIOCD0/TCLK
37 MSCK
P12/TIOCC0/TCLK
36 MDIO
P11/TIOCB0/A21
35 PMFM
P10/TIOCA0/A20
34 OPT3
PA3/A19/SCK2
33
OPT1
PA2/A18/RXD2
32
OPT2
PA1/A17/TXD2
31 1k R352
PLST
PA0/A16
30 470K REF
R336
PB7/A15/TIOCB 5
29 R337 R323
PB6/A14/TIOCA 5
28
470K 220K
PB5/A13/TIOCB 4 R338
27 R325
PB4/A12/TIOCA 4
26
470K 220K
R339 R327
470K 220K
R340 R329
470K 220K
R341
R331
470K 220K
R342 R333
220K
470K
R343 R335
220K
470K
R344
470K
VCC
T5V
RX VCO
3.9k 1.8K
R85 R79
33P
L37 C126
68N
Q17
C102
2SC5006
470
7P
L42 R87
Q15
Q14
4.7U
3.9k 1.8K
2SC5006 2SC500 6
R84 R83
L25
C123 4.7
4 3
82N 68P R82
Q19
Q16
2 U NR9213J
R86 2SC5006 R88
5 1
100K 560
Q18
TX VCO
XP1214
R5V
2P L502
R31
100 C49 56N
C511
FL-335 R32 0.001
FI1
0.01
HVC350B
C40
0 C51 C41 HVC350 B
4 1
R33 GND IN
2 3
15P
OU T GND 1.5P
330 Q6 3SK299
0.001
R22
10K
+5V
SQLC R510
R514
47K
IC13
C170 47K
1 8
100K
2 7
0.1 R151
3 6
4 5
R154 120K
TC4W53FU
C174 180P
C172 IC6
2 IC12
R509
1 1 24
0.047 VIN1 VIN8
3 2 23
4.7K VOUT 1 VOUT8
R73
MOD 3 22
VOUT 2 VOUT7
4 21
VIN2 VIN7 12K
5 20
VDD GND
6 19
LD RESET
18
7
CLK VDAREF
8 17
DI DO R74
9 16
VIN3 VIN6
4 10 15
BA L
VOUT 3 VOUT6 390K
V+ DEVT 11 14
VOUT 4 VOUT5
GND TONC 12 13
VIN4 VIN5
11
M62364F P
IC6
13
R213
14
R210 R211
12
4.7K
47K 47K
LM2904PWR
CTCSS/DTCS
LM2904PWR
IC19
R186
CDEC 3
R184
1 7
470
DUSE 2
IC19
3.3K
Q40 R185
UNR9213J
6.8K
C225
470P
R97
1k
J5
GND 30
+5V 29
VCC 28
M ICMUTE 27
AFONOP 26
25
BEEPOUT
24
RXMUTE
23
DISCIN
22
AFOUT
R288
REM 21
R203 220K CCS 20
4.7K
R204 100K CIRQ 19
SO 18
R205 100K SI 17
SCK 16
AXN330C038
XY
Q2
TPC6103
VCC
Q29
MA2S077
C100
TX
10P D16
2SC5006
Q3
UNR9213J D5
DAN202U
C183
10P
Q4
2SK1829
AGC
R174
470K
Q5
3SK293
RX
6P C22 C25
HVC375B HVC375B
RF AMP
C29 1.5P 6P
CP53
CP06S
CP58
120K
CP06 S
47P
R303
10K
+5V
8.2K R513
R93
R512 47K
33K
C35
0.0022
R107
47K C130
IC14
33K 0.1
R119
1 24
AGNDIN TEST
2 23 R114
AGND RXIN
82K
3 22
TXIN RXINO
Q502
4 21
TXINO RXLPFO
2SK3019 C414
5 20
LIMLV RXAF
6 19 1
EXTLMIN RXAFIN 1k
R523
7 18 MUTE
MOD EXPOU T
8 17
VSS VDD C128
9 16
TCLK XIN
10 15
0.1
TDATA XOU T R106 R118
11 14 F MICOUT
DI/O DIR
12 13
1M
RDF/FC SCLK CP4 220K
MICIN
X5 R273
AK2346 P
22 PTTIN
C356 0
G
CR-765
C308 0.1
PTTOUT
0.001
R301
C360
C64
0.1
PTT
68K
to DISCIN
C223
f rom AFOUT
0.1
R183 R182 R181
5
22K 22K 22K
6
R242 330K
BEEP
C380
R289 100K
BEEPOUT
0.1
TONE
C371
0.1
Vcc
AFONOP
AFON
1 PTTIN 1
2SB1132 C326
2 PTTOUT 2
3 MICOUT 3
4 MICIN Q42 4
5 AUX 5
CP06S
6
BUSY
Q41
7
MDW N
CP46 XP6501
8
SIGOUT
9
OPT1
10 OPT2
11 OPT3
12 GND
13 OPV3
14 OPV2
15 OPV1
VCC
8 8
2SA1577
V+ IC19 V+ IC23 Q24 2SA1577
Q25
GND LM2904PWR GND LM2904PWR
4 4
+5V
S5V
R5V
VCC
T5V
T5V
APC
APC
To the PA UNIT
GND
TX
VCC
J6
IMSA-6176S-03Y902
T5V
C79
47P
R8
220K
IC2
APC
5 15K
3
R9
4
R5
1
220
TA75S01F
2
Q501
U NR9213J
S1
EVQ-PUL
MONI
EMER
C136
100P
R121 R527
220K 120K
R122
C142
6
C
7
150K 0.01
MC1
5
CP45 IC23 EM6027P
CF20
LM2904PWR
PTT SW
R282
100K
AutoTX
Q38
UNR9213J
+5V
Q503
U NR9213 J
R237
10
CP3
Q43
R515
CF20 D 1k
UNR9111J
R240 8.2K
C336 J3
HSJ1122-010010
470P
68K
R241
R244 R245
C335 TP76N00N
8.2K
2
220K 18K
C337
1 1
R283
3
1 R246
IC23
100K
LM2904PWR
R315
A
10
R234
IC15
C324
10
NC POUT 1
9
VCC P WGND 100 2
8
NC PREGND
7 J4
VIN PHASE
6 BM02B-ASRS-TF
RIPPLE NF
TA7368FG
AFOUT
SP
CLONE
CP70
CP06 S
J2
CP71 HSJ1456-010320
D28
R239
Q44
CP06S
U NR9210 J EC10SP16
15K
8
6
4 C2
RB706F 5 2
2 C1
4 1
1
3
S27
2SB113 2
Q26
Q27
XP6501
MP 1
Q28
UNR9113J
2721
*; Refer to "PARTS LIST."