Icom IC-T81A Service Manual Download

Page: 50 / 53

CHG

50MHz

WFM

VHF

400MHz

1200MHz

50M

00M

1200M

UHFTX

50TX

VHFTX

UHFTX

VCC

+3C

TXC

12TX

50TX

VHF

VHFTX

UHF

TXC

UHFTX

1200

12TX

VCC

TXC

PSET

R+3

1200

R+3

UHF

800
R+3

300

AGC

+5V

TUNE

R+3

CHGC

VCC

BDET

VCC

VHF

R+3

VGGC

50TX

VHFTX

12TX

C124
0.001

L101
0.15

C201
0.01

C322
0.001

R311
100 K

R312
100 K

C502
0.001

C508
8 P

IC501
UPC2748T

GND

OUT

GND

VCC

R501
3.3 K

R503
330

R504
100

R506
100 K

R509
2.2 K

Q4
2SB1132 R

Q403
UN9115

Q302
XP1115

R304
100 K

R308
10

R309
47

D5
MA133

Q201
3SK292

C310
0.001

R505
4.7 K

L102
0.15

D6
SB07-03C

R7
100 K

D1
RB060L-40

C212
0.001

R204
22 K

C205
0.001

R209
100 K

C202
0.001

R210
4.7 K

C208
0.001

R208
100

R301
4.7 K

L906
3225

L401
18 nH

L402
18 nH

L301
56 nH

L502
10 nH

L503
10 nH

Q5
UN9210

R10
10 K

C33
0.001

D303
MA2S077

D302
MA2S077

L302
56 nH

D403
MA2S077

D402
MA2S077

R110
470 K

C119
0.001

D106
HVU350

D107
HVU350

R206
100

C203
0.001

R202
100 K

C204
0.001

D4
MA2S728

R8
22

R9
22

R112
470 K

R303
4.7 K

R113
4.7 K

R203
120 K

R302
1 K

R316

4.7 K

Q9
XP4601

MP2
1903 CONTACT SPRING

1
2
3

C506
1 P

R502
68 K

R306
100 K

R307
120 K

Q6
HAT1024R

1
2
3
4

C192
0.001

C194
0.001

C195
0.01

C196
0.001

C200
0.001

D404
MA2S077

L404
18 nH

Q902
2SD2216 S

Q903
2SB1132 R

Q912
UN9215

C911
0.001

R925
100

R930
100K

R916
1 M

D901
MA133

R907
4.7 K

L931
0.82

L907
3225

R401
3.3 K

L62
3225

C198
0.001

C199
0.001

L63
3225

J3
HEC2711-01-020

C191
0.001

C193
10

D802
MA2S077

C7
33 P

C409
8 P

R403
3.3 K

C507
2 P

C505
2 P

R414
4.7 K

R144
3.9 K

Q921
MRF9745

C945
47 P

D804
MA2S077

D806
MA2S077

D807
MA2S077

R897
4.7 K

C146
150 P

L134
0.82

R139
3.3 K

Q135
2SC5107 O

L135
0.18

R161
3.9 K

D501
1SV308

IC51
UPC2748T

GND

OUT

GND

VCC

C210
0.001

Q501
2SC5195

R103
33 K

C522
5 P

R511
4.7 K

C418
5 P

Q134
2SC3356 R25

C159
0.001

C161
0.001

R201
82 K

C879
3 P

R51
6.8 K

R52
4.7 K

R53
82

C59
0.001

L61
HF50ACC453215P-T

D803
MA2S077

D510
MA6S121

C107
0.001

C108
0.001

C116
0.01

C114
0.01

C121
0.001

C123
10 P

C34
0.001

R31
3.3 K

C64
2 P

D31
MA2S077

C977
0.001

Q913
XP6401

Q905
2SA1588 GR

R905
4.7 K

Q911
2SA1588 GR

C138
0.001

C131
0.001

C139
0.001

C132
0.001

R122
100

Q910
UN9211

Q908
UN9211

Q906
UN9211

Q904
UN9211

R163
3.9K

D909
1SV271

Q922
2SK3075

R134
10

R32
3.3 K

R888
4.7K

R882
27 K

R138
150

R165
3.3 K

R140
47

R142
3.9 K

R143
2.7 K

R884
220

L808
0.1

C890
5 P

Q822
2SC5107 O

823

SC5107 O

R145
150

C153
5 P

R166
3.3 K

R147
47

Q131
2SC5195

R121
3.9 K

R123
3.9 K

R124
3.9 K

L125
2.7 nH

D132
1SV308

R310
10 K

R205
1 M

R207
10 K

R33
3.3 K

C37
0.001

C36
0.001

R135
47

Q824
2SC5195

L811
4.7 nH

D12
MA132WK

L908
0.14

L143
1.5 nH

L142
39 nH

R915
10 K

Q931
XP4312

5
4

D505
1SV308

L501
33 nH

C23
27P

C24
120 P

C22
330 P

L18
0.25-1.9-13TL

C103
47 P

C101
68 P

C43
2 P

C303
18 P

C18
22 P

C15
3 P

C10
6 P

C4
8P

C5
68 P

L201
0.1

L202
0.1

C209
0.001

L205
0.1

L206
0.1

R413
4.7 K

D405
1SV308

C9
0.5 P

D507
1SV308

D311
1SV308

D204
1SV308

D108
1SV308

C305
0.001

L305
0.12

L306
0.12

C306
47 P

C320
47P

C321
47 P

C323
2 P

C319
8 P

D310
MA2SV05

R946
100

Q924
UN9215

D910
1SV271

D907 1SV308

D918
1SV308

L926
0.1

D913
1SV308

D914
1SV308

R126
22

D53
1SV308

R409
150

R404
33 K

Q401
2SC5195

R924
100 K

C137
4 P

R156
100

R160
100 K

L124
2.7 nH

R898
4.7 K

R893
4.7 K

R881
220

C878
0.001

Q821
2SC4403 3

C899
0.001

L932
10

C915
0.001

C63
0.001

C65
0.001

C62
0.001

C72
0.001

C416
0.001

C60
0.001

C57
0.001

C417
0.001

C521
0.001

95
K

C897
6 P

R892
4.7 K

D805
MA2S077

L809
22 nH

C884
0.001

R887
4.7 K

Q901
UN9211

Q909
2SA1588 GR

R909
4.7 K

C913
0.001

C135
0.001

C154
0.01

C155
0.001

R149
3.9 K

C160
0.001

C892
0.001

C921
0.001

C142
0.001

C143
0.001

Q133
2SC4403 3

C150
0.001

C173
0.001

C145
0.001

C144
0.01

C149
0.001

R150
2.7 K

Q136
2SC3356 R25

C151
0.001

C152
0.001

R931
100K

C923
0.001

D902
1SV271

C934
0.001

C930
0.001

C54
0.001

C988
0.001

C987
0.001

C404
0.001

C411
0.001

C515
0.001

C503
0.001

C504
0.001

C514
0.001

C517
0.001

C512
0.001

C519
0.001

C518
0.001

C318
0.3 P

D309
MA2SV05

C313
0.001

C315
0.001

C314
0.001

C307
0.001

C308
0.001

D202
MA2S304

C324
0.001

C71
0.001

C213
0.001

C82
0.001

C70
0.001

Q202
UN9115

C197
0.001

C304
0.001

C513
0.001

D52
MA2S077

D51
MA2S077

C73
0.001

C141
0.001

C171
0.001

C180
0.001

R158
3.9 K

C901
0.001

R919
4.7 K

+ C912

2.2

R903
4.7 K

C207
0.001

Q132
2SC5454 R54

Q502
XP1115

C978
0.001

C982
0.001

R936
68

L923
0.82

C968
0.001

R939
150

C973
0.001

C974
0.001

L922
0.82

R940 47 K

C975
0.001

C976
0.001

C981
0.001

C972
0.001

C949
0.001

C957
0.001

R935 47 K

C958
0.001

C986
0.001

R943
47 K

C953
0.001

R933
150

R934
150

C943
0.001

L917
80nH

L916
23.2 nH

FI51
LFL30-13C1270B060

GND

OUT

GND

FI52
LFL30-13C1270B060

OUT

GND

R949
2.2

C84
56 P

L13
0.22

C20
15 P

C16
18 P

C19
3 P

C17
5 P

C13
0.5 P

L121
3.9 nH

R133
22

L122
5.6 nH

R125
3.3 K

R131
47

R923
27 K

L910
2.2 nH

L919
65 nH

C133
3 P

C157
10 P

L139
5.6 nH

C147
15 P

R901
470

R902
470

R904
470

R906
470

R908
470

C900
2 P

C942
0.0022

C924
0.1

D134
1SV308

D10
MA2S111

D102
1SV308

D304
1SV308

L123
1.5 nH

C136
3 P

IC901
NJM3404AV

C58
4 P

C41
3 P

R159
82K

L304
82 nH

L807
0.22

C880
5 P

L64
3.9 nH

D143
MA2S111

D142
MA2S111

C183
0.001

C182
0.001

C181
0.001

C902
0.001

R910
1 K

R911
0.15

Q907
2SA1588 GR

C903
0.1

R899
4.7 K

D508
MA132WK

D203
MA2S304

C206
0.001

C31
0.001

Q301
3SK291

R508
100 K

R507
2.2 K

C510
5 P

C509
1.5P

L505
22 nH

L504
22 nH

C511
0.001

FI401
EFCH435MWNP1

C412
0.001

Q140
2SD2216 S

Q139
UN9115

R128
4.7 K

Q138
MXR9745 RT1

C172
0.001

C170
0.001

D141
1SV308

R157
3.9 K

C175
0.001

R928
33

C928
0.001

C931
0.001

C932
0.001

C933
0.001

D32
1SV308

C35
0.001

C55
0.001

C56
15 P

L58
8.2 nH

Q51
2SC5319

L303
33 nH

D306
MA2SV05

L15
107 nH

L14
80 nH

L17
0.25-1.9-13TL

L16
107 nH

L12
54 nH

L11
54 nH

L8
23.2 nH

L9
21 nH

C44
0.001

C42
0.001

C51
2.5 P

C52
2.5 P

C969
220 P

L913
0.40-1.4-2TL

L912
107 nH

C954 15 P

C952
0.001

C985
0.001

Q926
UN9215

L56
6.8 nH

L57
4.9 nH

L4
14 nH

L51
6.8 nH

L53
6.8 nH

R141
47

L2
8.2 nH

L3
8.2 nH

C3
3 P

C2
3 P

C1
1 P

R510
4.7 K

C516
0.001

R132
180

C327
5 P

C898
0.001

L810
12 nH

D808
MA2S077

R900
4.7 K

C877
0.1

C940
0.1

D10
MA2S111

L7
12 nH

L110
0.47

L109
0.47

C120
0.75 P

C117
3 P

C115
9 P

L108
1

L59
3.3 nH

C61
8 P

R57
1 K

L920
0.25-1.9-13TL

C955
0.001

R944
47 K

C971 0.001

C941
0.001

C178
5 P

C14
2 P

C12
7 P

L925
0.22

L914
0.22

L5
19 nH

R945
150

C983
0.001

D904
1SV271

D903
MA2S077

C916
1 P

C45
1.5 P

C49
0.5 P

C50
1.5 P

C48
3 P

C46
2 P

L54
6.8 nH

L52
7.5 nH

Q53
UN9115

Q101
2SC5195

D103
MA2S077

C944
3.5 P

D908
MA2S077

Q932
2SD2216 S

C939
0.001

D919
MA8062M

C938
0.1

R952
470

C935
0.001

C163
0.001

C32
47P

C30
82 P

C28
68 P

C31
15 P

C29
24 P

C102
120 P

L55
5.6 nH

C937

0.001

C891
0.1

C886
0.001

Q923
2SD2216 S

R932
10 K

C950
0.001

C914
0.001

C963
39 P

C962
120 P

C965
8 P

C961
39 P

L921
0.82

Q927
UN9215

Q925
UN9215

C966
10 P

C964
10 P

C980
0.001

C979
0.001

L924 0.82

R942
150

L918
36 nH

C967
0.001

L10
44 nH

L6
23 nH

MP1
2135 PA HEATSINK

C27
10 P

R938
33

R100
100 K

J952
MM7329-2700

R914
10 K

R16
22 K

R15
22 K

C78
0.001

R912
1.8 K

L138
22 nH

R152
3.9 K

R106
330

R111
330

C301
22 P

C21
47 P

C302
33 P

C401
8 P

C8
10 P

C6
6 P

L1
10.5 nH

C415
0.001

D406
MA2S111

R929
1 K

L911
2.2 nH

L909
6.8 nH

J951
MM7329-2700

D503
1SV308

R146
5.6 K

L137
27 nH

C156
7 P

C53
2.5 P

C970
56 P

C960
56 P

C402
10 P

C403
3 P

C190
0.001

R918
27 K

R917
22 K

C948
0.001

R410
100

R58
150

C904
0.001

D906
1SV308

L915
0.22

R953
4.7 K

Q929
2SA1588 GR

Q928
UN9211

R954
470

C956
8 P

L905
17.5 nH

L403
15 nH

C405
0.001

D407
MA2S077

C211
0.001

C410
120 P

C907
0.1

R913
10 K

C908
0.001

C325
8 P

C326
1 P

C25
3 P

L136
33 nH

C885
22 P

D201
1SV308

L933
2.2 nH

C951
0.001

C917
0.5 P

W:1.7
50R:1.7
VC:1.7
50T:0.6

UC:2.2

12C:2.3

50T:0.8
50R:0.4

50T:2.2
50R:0.5

C:12.7

T:4.1
R:0

50T:4.0
50R:0

VT:4.1
VR:0

12T:3.4
12R:0

12T:4.1
12R:0

12T:0.7
12R:0

12T:2.3
12R:0

12T:3.3
12R:0

12T:0.8
12R:0

UT:0.8
UR:0

UT:2.8
UR:0

UT:2.6
UR:0

50T:3.3
50R:0

VT:3.4
VR:0

VT:3.3
VR:0

C:13.2

50T:0.8
50R:0
VT:0.7
VR:0

50T:2.0
50R:0
VT:1.7
VR:0

50T:2.4
50R:0
VT:2.1
VR:0

VT:0
VR:3.0

VT:0
VR:0.1

VT:0
VR:1.5

W:2.7

W:2.0

W:0.6

50T:0
50R:1.5

UT:0
UR:0.8

UT:0
UR:2.3

UT:0
UR:2.4

12T:0
12R:0.9

12T:0
12R:2.5

C:12.8

C:13.5

C:13.2

COMPLETE VIEW

Summary of Contents for IC-T81A

Page 1: ...SERVICE MANUAL MULTIBAND FM TRANSCEIVER...

Page 2: ...ZK IC T81A E Chassis 10 pieces Addresses are provided on the inside back cover for your convenience 1 Make sure a problem is internal before disassembling the transceiver 2 DO NOT open the transceiver...

Page 3: ...4 5 4 5 PORT ALLOCATIONS 4 6 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 PLL ADJUSTMENT 5 2 5 3 RECEIVER ADJUSTMENT 5 4 5 4 TRANSMITTER ADJUSTMENT 5 8 SECTION 6 PARTS LIST SECTION 7 MECHA...

Page 4: ...ht with BP 197 Ant 290 g 10 2 oz M TRANSMITTER Output power at 13 5 V DC High 5 0 W typical 1 0 W at 1200 MHz band Low 1 0 W typical 0 1 W at 1200 MHz band Modulation system Variable reactance modulat...

Page 5: ...d AM 50 MHz only Less than 0 56 V Threshold WFM Less than 5 6 V Threshold Selectivity except WFM More than 15 kHz 6 dB Less than 30 kHz 60 dB Spurious and image rejection ratio 50 144 MHz More than 60...

Page 6: ...1 TA7368F AF volume IC202 M5222FP AF mute switch Q361 2SJ364 CPU IC1 M38267M8LGP BOTTOM VIEW VCO circuit 1st mixer IC601 PC2757T WFM RF amplifier circuit APC sensor drive amplifier Q911 UN9215 Q913 XP...

Page 7: ...E LOGIC UNIT 1 Remove the sealing rubber 2 Unsolder 1 point D to separate a SENSOR control 3 Unscrew 3 screws E 4 Unplug J1 to separate LOGIC unit and RF unit 5 Remove the LOGIC unit in the direction...

Page 8: ...MHz Thus transmit signals are blocked from entering the receiv er circuits The antenna switching circuit employs a 1 4 type diode switching system The passed signals are then applied to each RF ampli...

Page 9: ...components The filtered 1st IF signal is applied to the IF amplifier IC701 The amplified signal is applied to the 2nd mixer circuit LOGIC unit IC701 pin 16 WFM band The RF signals are mixed with 1st L...

Page 10: ...e filter section amplifies and filters noise components The filtered signals are applied to the noise detector section and output from IC701 pin 13 as NOISE signal The NOISE signal from IC701 pin 13 i...

Page 11: ...and is then amplified at the power amplifier Q922 to obtain 5 0 W of RF power The amplified signal is passed through the antenna switch ing circuit D101 and D102 low pass filters and high pass filters...

Page 12: ...signal at the 440 VCO circuit VCO unit Q321 Q322 D321 and Q322 is amplified at the buffer amplifiers VCO unit Q323 The amplified signal is applied to the PLL IC IC801 pin 19 via a buffer amplifier Q8...

Page 13: ...tter circuit Buff Q816 Pin Port Description number name 4 5 6 7 11 12 13 14 Q1 Q2 Q3 Q4 Q8 Q7 Q6 Q5 Outputs VHVCO3 regulator control signal Outputs VLVCO3 regulator control signal Outputs 6MVCO3 regul...

Page 14: ...strobe signals to the PLL IC2 RF unit IC802 pin5 Outputs strobe signals to the PLL IC1 RF unit IC801 pin 3 Output port for the cloning signal 20 21 22 23 24 25 26 27 28 29 30 31 32 33 39 41 42 43 46...

Page 15: ...QUIPMENT DC power supply RF power meter terminated type Frequency counter FM deviation meter GRADE AND RANGE Output voltage 13 5 V DC Current capacity 3 A or more Measuring range 1 10 W Frequency rang...

Page 16: ...MHz USA 1 only 435 000 MHz ohter Connect an SSG to the antenna connector and set as Level 1 mV 47dBm Modulation OFF Receiving RF Top Pannel LOGIC Connect the DC voltmeter or an oscilloscope to VLV Con...

Page 17: ...ULV PLL lock voltage check point for 440 MHz PLL lock voltage check point for 1200 MHz RF UNIT BOTTOM VIEW 6MLV PLL lock voltage check point for 50 MHz TX RF UNIT TOP VIEW L702 Detector Output voltag...

Page 18: ...z Modulation 1 kHz Receiving Displayed frequency 107 000 MHz Receiving Displayed frequency 108 000 MHz Set an SSG as Frequency 108 000 MHz Level 1 0 V AM 107 dBm Modulation 1 kHz Mod depth 30 Receivin...

Page 19: ...5 5 LOGIC UNIT TOP VIEW 50 MHz WFM BAND AIR BAND and 145 MHz Sensitivity check point SD...

Page 20: ...layed frequency 92 000 MHz SEA USA 1 98 000 MHz EUR UK ITA AUS Connect the SSG to the antenna connector and set as Level 2 V 101 dBm Modulation 1 kHz Deviation 52 5 kHz Connect a terminator to the SP...

Page 21: ...level for the S meter to S3 Receiving Increase an SSG output level Receiving Displayed frequency 445 000 MHz USA 1 435 000 MHz other Connect the SSG to the antenna connector and set as Level 0 1 V 12...

Page 22: ...cy 1270 000 MHz Output power High Transmitting Output power Low Transmitting Top panel Top panel Top panel Top panel Connect an RF power meter to the antenna connector Connect an RF power meter to the...

Page 23: ...ransmitting Displayed frequency 445 000 MHz USA 1 only 435 000 MHz AUS SEA only Push D key while transmitting Transmitting Displayed frequency 435 000 MHz Push center of the multi func tion key while...

Page 24: ...GEJ 103 X 10 k R9 7030005110 S RESISTOR ERJ2GEJ 224 X 220 k R10 7030005220 S RESISTOR ERJ2GEJ 223 X 22 k R12 7030005840 S RESISTOR RR0510R 473 D 47 k R13 7030005840 S RESISTOR RR0510R 473 D 47 k R14 7...

Page 25: ...J 103 X 10 k R752 7030005230 S RESISTOR ERJ2GEJ 334 X 330 k R753 7030005000 S RESISTOR ERJ2GEJ 471 X 470 R754 7030005240 S RESISTOR ERJ2GEJ 473 X 47 k R755 7030005120 S RESISTOR ERJ2GEJ 102 X 1 k R756...

Page 26: ...102KBQ C927 4030013850 S CERAMIC ECUE1E102KBQ J1 6510019860 S CONNECTOR AXK6S40645P J3 6450002010 S CONNECTOR HSJ1501 011010 J4 6450001680 CONNECTOR HSJ1122 010010 DS1 5040002230 S LED CL 200YG C TS D...

Page 27: ...50000360 S DIODE 1SS364 TE85L D721 1750000360 S DIODE 1SS364 TE85L D801 1790000850 S DIODE MA132WK TX D802 1790001260 S DIODE MA2S077 TX D803 1790001260 S DIODE MA2S077 TX D804 1790001260 S DIODE MA2S...

Page 28: ...X 6 8 k R52 7030005040 S RESISTOR ERJ2GEJ 472 X 4 7 k R53 7030005570 S RESISTOR ERJ2GEJ 820 X 82 R57 7030005120 S RESISTOR ERJ2GEJ 102 X 1 k R58 7030007270 S RESISTOR ERJ2GEJ 151 X 150 R100 7030005090...

Page 29: ...RESISTOR ERJ2GEJ 103 X 10 k R855 7030005290 S RESISTOR ERJ2GEJ 682 X 6 8 k R857 7030008370 S RESISTOR ERJ2GEJ 561 X 560 R862 7030005290 S RESISTOR ERJ2GEJ 682 X 6 8 k R864 7030004980 S RESISTOR ERJ2G...

Page 30: ...50 S CERAMIC ECUE1E102KBQ C120 4030016820 S CERAMIC ECUE1HR75BCQ C121 4030013850 S CERAMIC ECUE1E102KBQ C123 4030014120 S CERAMIC ECUE1H100CCQ C124 4030013850 S CERAMIC ECUE1E102KBQ C131 4030013850 S...

Page 31: ...7 4030014280 S CERAMIC ECUE1H0R3BCQ C728 4030014100 S CERAMIC ECUE1H070CCQ C729 4030014020 S CERAMIC ECUE1H020BCQ C730 4030009820 S CERAMIC C1005 JB 1C 103K T A C731 4030009820 S CERAMIC C1005 JB 1C 1...

Page 32: ...CUE1E102KBQ C976 4030013850 S CERAMIC ECUE1E102KBQ C977 4030013850 S CERAMIC ECUE1E102KBQ C978 4030013850 S CERAMIC ECUE1E102KBQ C979 4030013850 S CERAMIC ECUE1E102KBQ C980 4030013850 S CERAMIC ECUE1E...

Page 33: ...KBQ C316 4030014280 S CERAMIC ECUE1H0R3BCQ C317 4030013850 S CERAMIC ECUE1E102KBQ C318 4030013850 S CERAMIC ECUE1E102KBQ C319 4030013850 S CERAMIC ECUE1E102KBQ C320 4030013850 S CERAMIC ECUE1E102KBQ C...

Page 34: ...EUR UK ITA 1 MP25 8930044470 1903 DC cap 1 MP26 8930044480 1903 Lens 1 MP28 8810008990 Screw PH BT M2x10 ZX 2 MP29 8810009510 Screw FH BT M2x4 NI ZU 11 MP30 8810009630 Screw FH No 0 M2x4 5 NI B 2 MP3...

Page 35: ...P1 C LOGIC unit VCO unit RF unit MP3 C MP18 C MP29 C MP9 C SP1 C MP22 C EP2 L MP25 C MP26 C MP6 C MP2 L MP29 C DS4 L MP1 L S1 C MP30 C J1 C MP21 C MP28 C MP2 C MP20 C MP17 C MP2 RF MP1 V MP31 C MP13 C...

Page 36: ...8A B E C UN9210 Symbol 8L B E C UN9211 Symbol 8A B E C B E C B E C UN9215 Symbol 8E UN921E Symbol 8N B E C XP1115 Symbol 9L XP1116 Symbol 7N XP1501 AB Symbol 5R B1 E B2 C1 C2 B1 E B2 C1 C2 B1 E B2 C1...

Page 37: ...3 R154 R305 R322 R18 R19 C321 R329 C322 R330 C328 R339 C320 R328 C326 R15 C77 C901 IC5 IC2 S7 DS3 R901 C927 C926 C751 C758 C754 Q754 C757 C241 C240 Q752 Q603 Q602 R752 R718 R730 R736 R735 C713 R734 R7...

Page 38: ...C252 C216 D304 Q361 Q303 Q302 C316 C317 C718 Q753 C306 C311 C904 C903 L2 FI701 S401 S402 C147 IC4 X1 J3 C142 C149 R301 R306 R307 R309 R918 R39 R2 R144 C148 C923 C141 C150 C917 R24 R38 R23 R32 R27 R28...

Page 39: ...5 C941 C923 R925 R158 C178 C873 C871 R839 C875 R10 C190 C345 R344 R343 R4 C93 R2 C88 C89 C937 C935 C939 C839 C180 C907 C908 R913 C802 C801 C831 C832 C827 R923 C924 R912 C915 C965 L917 L916 Q922 L912 L...

Page 40: ...51 R125 R124 R126 C135 R909 R908 C120 C121 C119 R110 C117 C114 R133 R414 C139 R895 C895 R894 C524 C521 C417 C900 R512 R615 R612 C991 C992 C 5 1 9 R870 R854 C816 R807 R869 R726 C731 R721 C726 R725 C192...

Page 41: ...322 C370 Q350 L330 L360 D351 L322 D322 L312 L302 Q301 Q302 L311 Q312 D312 L331 C389 C361 R369 R364 C365 C364 C363 R360 C322 D321 C321 C333 R301 R302 C302 C334 D302 D301 C304 R306 C323 C371 R324 C324 R...

Page 42: ...9 6 BOTTOM VIEW C388 R374 Q354 Q353 L333 L337 L336 R371 C380 C378 C381 C384 R373 L338 L335 L334 C375 C376 R372 C387 R321 C386 C385 C383 C303 C382 C379 C377...

Page 43: ...SW 430MHz BAND SW 144MHz Q306 2SJ364 Q305 2SJ364 Q304 2SJ364 DEV SW Q307 UN9214 BAMD SW 1200MHz REG 3C DC DC DATA CK DAST AF FILTER IC241 NJM2902V VOL Q751 XP1501 Q752 2SD2216 Q754 2SD2216 IC5 M62368...

Page 44: ...901 NJM3404AV PSET RX Lo FREQUENCY 50MHz BAND WFM BAND 144MHz BAND 430MHz BAND 1200MHz BAND Q301 3SK291 D309 MA2SV05 D310 MA2SV05 Q201 3SK292 D203 MA2S304 D306 MA2SV05 D202 MA2S304 RX FREQUENCY WFM BA...

Page 45: ...2SC4228 IC802 TB31242FN COMMON RX BUS 3C IC5 S 81332HG KC Q1 2SD2216 Q2 XP1501 Q3 2SB1132 T4 REG 3 TXC Q901 UN9211 Q902 2SD2216 Q903 2SB1132 D901 MA133 I O DC SW CHG VCC TO BATT DATA IC3 BU4094BCFV Q...

Page 46: ...1 K R248 470K C245 0 1 R246 120K C246 0 1 C247 100 P R247 100 K C243 0 1 R142 22 K C756 0 01 VCC VIN C718 0 1 R757 22 K R758 47 K C755 0 047 R760 1 M D I G C145 0 001 D143 MA2S111 R145 10 K C151 0 00...

Page 47: ...13 0 001 C720 0 047 R734 22 K C735 0 1 R733 20 K C736 0 001 SD NOISE L702 LS 528 Q702 UN9115 R729 1 8 K PSET 8 IC4 TC4W53FU C907 0 001 R1 NTCCF20124AH 473KCT TXC 5 6 7 4 3 2 1 C906 0 001 J1 AXK6S40645...

Page 48: ...20 0 1 C241 0 1 R241 1 M R244 82 K R243 82 K R242 470 K C242 0 039 R249 220 K C244 0 1 R245 82 K C240 0 0015 1 2 3 4 5 6 7 14 13 12 11 10 9 8 IC241 NJM2902V C252 0 0022 C251 0 001 R253 56K R254 56 K R...

Page 49: ...H Q341 2SC4215 O C347 0 01 C344 0 001 C348 3 P R351 15 R839 15 R867 220 Q813 2SC5107 O C854 0 001 C852 0 001 C833 0 001 R828 220 D810 MA6S121 C832 0 001 C831 0 001 L802 4 7 H C748 0 001 R726 4 7 K R72...

Page 50: ...4 0 001 C71 0 001 C213 0 001 C82 0 001 C70 0 001 Q202 UN9115 C197 0 001 C304 0 001 C513 0 001 D52 MA2S077 D51 MA2S077 C73 0 001 C141 0 001 C171 0 001 C180 0 001 R158 3 9 K C901 0 001 R919 4 7 K C912 2...

Page 51: ...001 R3 4 7 K C94 0 001 C875 0 001 C873 0 001 C871 0 001 C869 0 001 C867 0 001 C726 7 P C895 0 001 R895 33 K C894 0 001 C897 6 P R892 4 7 K D805 MA2S077 L809 22 nH R889 220 C888 0 001 C889 0 001 C882 0...

Page 52: ...ne 425 454 8155 Fax 425 454 1509 URL http www icomamerica com Customer Service Phone 425 454 7619 Glenwood Centre 150 6165 Highway 17 Delta B C V4K 5B8 Canada Phone 604 952 4266 Fax 604 952 0090 URL h...

Page 53: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan A 5566I S 1 1999 Icom Inc...

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