background image

COMMON LINE

IC37
TA75S01F

MAIN UNIT

C417
1

HV

R332
10k

C482
0.001

C474
47p

C455
0.001

Q39
DTC144EUA

Q38
DTC144EUA

C453
0.001

C423
0.1

C452
0.001

C424
0.1

R336
10k

R337
47

R335
1k

R307
1M

R334
100k

R333
1M

D39
MA2S111

Q33
2SJ144

C395
10

R301
100k

R306
220k

R302
220k

C485
0.001

C477
470

C475
47p

C476
0.001

R360
10k

R372
300k

R373
100k

C459
470

C457
0.1

R359
4.7k

R339
4.7k

R338
4.7k

C429
10

Q34
2SD1664

Q35
DTC114TUA

C422
0.001

D37
DA221

C430
0.1

C428
10

C397
0.001

R311
10k

R310
4.7k

Q30
2SA1577

C398
0.001

C396
10

Q27
DTC144EUA

Q32
XP6501

1

2

3

4

5

6

R308
22k

R309
22k

C400
0.001

C399
10

C454
0.001

R361
470

Q41
DTC144EUA

C478
0.1

C458
10

C460
0.1

R312
2.2k

C387
0.001

C420
1

C418
1

C421
1

C419
1

R305
1k

R469
100

C580
0.1

C394
0.1

C393
47

IC36
TA7808F

I

O

G

IC40
AN78L05M

I

O

G

Q42
2SJ377

L41
4.7H

R371
10k

R374
10k

Q40
DTC144EUA

EP10

EP11

CP21

CP24

CP25

CP27

CP28

J8

1
2
3
4
5
6
7
8
9
10
11

12

13

IC35
DS14C232TM

1

C1+

2

V+

3

C1–

4

C2+

5

C2–

6

V–

7

DOUT2

8

RIN2

9

ROUT2

10

DIN2

11

DIN1

12

ROUT1

13

RIN1

14

DOUT1

15

GND

16

VCC

Q44
DTC363EK

R377
10k

D49
MA2S111

C486
0.47

R391
100k

R378
22

D46
DSA3A1

D57
DA221 TL

D58
DA221 TL

D59
DA221TL

D60
DA221 TL

Q31
2SB1132

R419
10k

R420
47k

R436
47k

CP41

CP42

CP43

CP43

CP43

CP44

CP44

CP44

CP45

CP46

CP52

CP53

R439
1k

R440
1k

DC cable

W3
OPC-1414

D66
DA221 TL

D67
DA221 TL

CP55

CP56

CP56

25 pin 
CONNECTOR

EEPROM
Connector

Flash for 
MAIN CPU
DIGITAL CPU

J13

1

2

3

4

5

6

7

8

9

10

C366
10

DIM

HORN

DISC

F

SIG

SIGO

PWR

T8V

T8V

BATV

EPTT

PGI1

PGI1

PGI3

PGI3

PGO1

PGO1

R8V

R8V

PA

2

CPU5

CPU5

IGSW

IGSW

TXD

TXC

TMUT

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

HV

PGI2

PGI2

D48
DAN222TL

D44
DAN222TL

D47
DAN222TL

R370
100k

CTS

TXD

RXD

RXD

ARXD

CTSI

XCTS

RTS

MD2

TXD2

RXD2

C_RES

TXD

RXD

RDAT

RCK

MD1

MD1

ARES

ARES

ARES

MD1

MD2

GND

GND

C_RES

RXD2

TXD2

ARES

MD1

MD2

C_RES

RXD2

TXD2

AT

X

D

XR

TS

8V

8V

8V

8V

8V

Q43
DTC144EU

J7

1
2
3
4
5
6
7
8
9

10

NTXD
NRXO

NTXD
NRXO

PGO2

PGO2
GND

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

RCK

CTS

RTS
RDAT
RXD

TXD

HANG

HANG

MMUT

MMUT

BUSY

VCC

RCK

VCC

3VA

3VA

MD1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

C83
0.001

C547
0.001

C541
12p [H]
8p [L]

C542
6p [H]
10p [L]

C121
1

C569
47p

C122
470p

C125
47p

C161
0.1

C545
0.001

C120
0.001

R97
22k

R128
100k

C540
0.5p

C84
0.001

CP9

R431
22k

R458
10k

FINRF
OUT1

FINRF
OUT1

R457
100

R432
1.2k

R433
2.2k

C522
3.3

C523
0.47

R430
5.6k

C525
0.0033

R83
4.7k

C548
47p

R79
10k

R77
100

R129
100k

5V

C129
0.001

C162
10

X4 
CDBC450KCAY24

R131
680

R132
100k

1

OSCIN

2

OSCOUT

3

MIXOUT

4

VCC

5

IFIN

6

DEC

7

FILOUT

8

FILIN

AFOUT

QUAD

IFOUT

RSSI

N-DET

N-REC

GND

MIXIN

R130
1.8k

R455
1k

R428
1k

R459
1.5k

R80
330

R149
100k

C124
1

L13
1.2H

D11
HVC350

TXC

VCC

OPC-617

DIM
HORN
GND
AFO
GND
DET
GND
IN
GND
PTT

T8V

R8V

HV

CPU5

CPU5

5V

8V

8V

CPU5

5V

8V

CPU5

5V

5V

5V

5V

5V

5V

5V

5V

T8V

R8V

8V

CPU5

5V

5V

5V

5V

8V

C549
47p

L21
33nH

C260
47p

C256
0.001

R212
220k

Q19
2SC5107

R193
470

C242
470p

Q4
2SK880

L50
0.82H

C190
5p [L]
7p [H]

C226
8p

R178
JPW

R148
5.6k

R175
6.8k

Q12
2SC4226

C221
0.001

C223
47p

C586
0.1

C218
7p [H]
12p [L]

R173
JPW

C217
18p [H]
12p [L]

R147
6.8k

R174
6.8k

Q11
2SC4226

C220
0.01

C222
470p

C576
0.1

C577
0.1p

EP6

ACZ1005Y-102-T

EP9
ACZ1005Y-102-T

C240
0.5p

C239
0.5p

R362
100k

C461
2p [H]
3p [L]

W2

ANT

C431
0.001

R340
47

R342
100

R315
47

D40
MA728

D38
MA728

C402
10p [H]
7p [L]

C401
0.001

R313
100

C389
2p [H]
3p [L]

C388
2p [H]
3p [L]

C374
0.001

D30
UM9401F

[F2721D], 
[F2821D] 
only

D29
XB15A407

[F2721D], 
[F2821D] 
only

C346
3p

C357
47p

C534
22p

C533
47p

C377
47p

C347
22

C327
4p

C326
3p [H]
4p [L]

C356
470p

C355
22

C353
47p

C354
0.001

R363
4.7k

R364
8.2k

R344
220k

R346
220k

R347
390k

R343 150k

R318
220

R316
100

R319
68k

[F2721/D], 
[F2821D]
only

C463
47p

C462
0.001

C438
0.0047

R345
10k

C436
1

C434
0.22

C406
0.01

C405
0.001

C392
0.001

C407 0.001

[F2721/D], 
[F2821D]
only

Q36
2SC4116

[F2721D], [F2821D] only

1

2

3

4

5

C435
47p

C404
47p

C383
0.3p

D35
1SS375

R303
10k

R317
270k

C382
0.001

C358
10

C333
2.2

C332
47p

R281
330

R294
10k

R275
150

R299
100

R293 1.8k

C575
1.5p

C290
0.001

C323
0.001

C324
47p

C285
47p

C282
0.001

C280
4p [H]
10p [L]

C281
0.01

R242
100

R251
100

R283
100k

R282
100k

R284
10k

R247
4.7k

R239
100

R240
100k

R238
10k

R210
33

R237
100

R211
68k

C279
47

C259
5p

Q22
2SC5107

C288
47p

C287
18p [H]
10p [L]

R246
1k

R245
10k

R208
120k

R209
100

VC0V

C255
47p

L22
617DB-1327=P3

L23
617DB-1327=P3

D16
HSB88WS

Q14
PMBFJ310

Q13
PMBFJ310

L17
4.7H

C107
0.1

C87
3p

R85 47

R451
6.8k

R194
10k

VCOV

8V

R453
4.7

R454
820 [H]
680 [L]

R452
6.8k

R86
1.5k

R105
470

C130
0.1

C131
330p

C133
0.001

C134
0.001

C168  0.001

C166
47p

C557
0.001

C163

100p

C164

100p

L18
0.27H

C228
0.01

C229
0.001

C230
0.01

R184
22

L19
4.7H

C245
2p

C269
10p [H]
9p [L]

C270
0.001

C271
7p [H]
9p [L]

C294
0.001 [H]
0.01 [L]

C247
0.001

C292
1

C578
47p

C293
0.001

C291
0.001

C302
0.001

R218
220k

R219
220k

R220
10k

R257
4.7k [H]
1k [L]

R252
10

L31
12nH [H]
15nH [L]

R258
270

R253
4.7

R254
56k

R255
10

C303
0.001

C304
47p

C295
0.001

Q24 3SK293

Q6
2SC4215

R151
1.5k

C165
0.001

C199
0.001

C198
0.01

R177
10k

R256
18k

R278
1.8k

R280
10k

R279
470k

D31
UM9401F

D28
MA728

D27
MA77

C385
5p [H]
8p [L]

L37
33nH

L36
18nH [H]
22nH [L]

L32
18nH [H]
22nH [L]

C298
7p

C334
8p

C331
3p [H]
2.5p [L]

C363
8p

C297
0.1

C300
0.001

C296
0.1

C299
0.1

C330
0.1

A01

C359
7p

Q26
2SK1829

D22 MA2S111

D25
DA221

D24
MA2S111

D17
HVC350

D18
HVC350

L28
15nH

C364
68p

C361
18p [H]
24p [L]

C336
0.001

C335
18p [H]
24p [L] 

C362
0.001

D26
HVC350

D68
HVC350

D69
HVC350

D23
HVC350

C360
0.001

D20
MA77

Q21
2SC5107

C263
47p

R217
8.2k

L29
27nH

L27
27nH

R215
8.2k

R213
100 [L]
10 [H]

C262
47p

Q20
2SC5107

C167
0.001

C153
47p

C155
0.01

C550
47p

C241
0.1

C243
47p

C257
0.001

C289
1p

C284
470p

C322
47p

C321
3.5p [L]
5p [H]

C403
47p

C433
0.001

D19
1SV307

D41
MA2S728

FI5
NFE31PT152Z1E9L

1

2

3

FI6 
NFE31PT152Z1E9L

1

2

3

FI7 
NFE31PT152Z1E9L

[F2721/D], 
[F2821/D] only

1

2

3

IC12
TA31136FN

9

10

11

12

13

14

15

16

L25
33nH

L35
15nH

L38
1H

L43
15nH

L42
15nH

L44 15nH

L49
15nH

Q9
2SC4116

Q16
2SC4226

Q17
XP1214

1

2

3

4

5

Q18
DTC144EUA

Q23
2SC5107

Q48
2SC3356

R127
2.2k

R314
27k [H]
39kp [L]

R341
39k

R181
6.8k

R180
100

C201
0.001

C205
0.001

C200
0.01

R375
100

R376
6.8k

R155
1k

L40
15nH

C487
0.1

L6
1.2H

C227
33p

C283
3.5p [L]
4p [H]

C325
3p [H]
4p {L]

C571
0.3 [H]

L30
27nH

R248
27k

R443
47

L33
27nH

L56
6.8nH

R214
220

C261
6p [H]
10p [L]

L24
18nH [H]
27nH [L]

L26
18nH [H]
27nH [L]

R99
4.7k

R101
2.2k

Q10
2SC4215

C345
3p

C373
5p

C375
1p [H]
3p [L]

C376
2p

C391
3p [H]
5p [L]

C551
3p [H]
4p 
[F2710-L],
[F2810-L]
5p 
[F2721/D-L],
[F2821/D-L]

C552
1.5p [Other]
4p 
[F2710-H],
[F2810-H]
5p 
[F2721/D-L],
[F2821/D-L]

C432
1.5p
 [L] 
only

C573
5p [H]
only

L39
1.5nH [H]
18nH [L]

C384
0.5p [H]
2p [L]

C258
1p

R195
270

R197
270

R196
22

C246
10p [H]
6p [L]p

C264
18p [H]
12p [L]

C516
10p [H]
6p [L]

R244
33

R422
470

L34
15nH

R383
100k

R182
10

C266
0.5p

C268
1.5p [H]
0.5p [L]

C348
2p

C203
15p

R100
100k

C132
390p

R470
47k

R483 330k

Q45
DTC144EU

R103
120k

R104
47k

R384
180k

R152
270

R133
150

Q46
2SC4116

Q50
2SK880

Q47
2SC4116

R176
680 [L]
330 [H]

R179
330

L53
7.5nH
[H] only

L12
10.5nH
[L] only

C196
5p

L54
7.5nH 
[H] only

L14
10.5nH
[L] only

L51
0.82H

C224
9p [L]
12p [H]

C225
4p

C156
10

C555
10

FI4
FL-380
46.350 MHz

1

IN

2

OUT

3

GND

4

GND

5

6

IC29
RA30H4452M-21

 [H-25W]

RA30H4047M-21

 [L-25W]

RA55H4047M

 [L-45W]

RA55H4452M

 [H-45W]

1

RF INPUT

2

GA

TE BIAS

3

DRAIN BIAS

4

RF OUT

R154
330

C204
2p

C202
2p

C231
0.001

C219
10p [L]
15p [H]

C188
8P

C191
5p [L]
7p [H]

C265
2p

C349
2p[H]
3p[L]

R320
PRF18BC4710B1RB

[F2721/D], [F2821D]
only

D21
DAN222TL

R295
1.5k

RSSI

TMUT

T2

T2

RSSI

DET

SQL

RSSID

DFIL

NOIS

NWC

IF

T8V

T8V

R8V

R8V

R8V

APCV

APCV

R8V

T8V

T8V

T8V

R8V

8V

8V

HV

HV

FWD

REV

R259
47k

D7
HVC383

L15
1.2H

L47
1.2H

L52
1.2H [L]
0.82H [H]

L46
1.2H

L48
7.5nH

D13
HVC350

L9
1.2H

C192
6p [H]
7p [L]

C543
15p

C546
8p [H]
15p [L]

C194
0.5p

C127
1

C128
0.001

R98
82k

F

TL

V

A

MOD

C554
1.5p [H]
4p [L]

C544
12p [H], 39p [L]

R456
10

R126
12k [H], 
18k [L]

R125
100k

R150
220k

C197
5p [H]
4p [L]

C193
0.1

C535
0.001

C536
0.001

D9
HVC383

D70
HVC350

D12
MA368

IC39
TA8225L

STBY

TJDET

NF2

IN+

PREGND

IN-

NF1

EMGDET

RIP

VCC1

OUT1

BS1

PW

-GND1

PW

-GND2

BS2

OUT2

VCC2

C468
220

C470
220

C443
100

C444
100

C471
100

R367
1

R368
1

R351
68

R353
68

R350
1k

R355
33k

C448
0.001

R328
10k

C446
0.1

C442
47p

C412
0.1

R349
220k

R354
220k

R325
2.2k

C414
0.01

C469
0.001

IC34
TA75S01F

1

2

3

4

5

R327
100k

R352
3.3k

R366
3.3k

C415
0.1

R326
100k

C413
470p

R424
100k

C445
47

C472
0.047

C473
0.047

R329
100k

SIGNAL

HLC

H_OUT2

H_GND

H_GND

C495
47p

C496
47p

C497
47p

C505
47p

C499
47p

C500
47p

C501
47p

C503
47p

C504
47p

C508
47p

C509
47p

C498
47p

J11

R414 1k

R406 1k

R409 1k

R411 1k

R407 4.7

R410
4.7

R413 1k
R405 1k
R415 1k

R416 1k

R417 1k

C511
47p

C513
47p

H_OUT2

CTS

RTS
RDAT
RXD

TXD

BUSY

H_OUT2

H_OUT1

H_OUT1

H_OUT1

CPU5

CPU5

MAIN CPU

IC23
HD64F2268TF

1

PM6/SEG31

2

PM5/SEG30

3

PM4/SEG29

4

PM3/SEG28

5

PM2/SEG27

6

PM1/SEG26

7

PM0/SEG25

8

PL7/SEG24

9

PL6/SEG23

10

PL5/SEG22

11

PL4/SEG21

12

CVCC

13

PL3/SEG20

14

VSS

15

PL2/SEG19

16

PL1/SEG18

17

PL0/SEG17

18

PK7/SEG16

19

PK6/SEG15

20

PK5/SEG14

21

PK4/SEG13

22

PK3/SEG12

23

PK2/SEG11

24

PK1/SEG10

25

PK0/SEG9

26

PJ7/WKP7/SEG8

27

PJ6/WKP6/SEG7

28

PJ5/WKP5/SEG6

29

PJ4/WKP4/SEG5

30

PJ3/WKP3/SEG4

31

PJ2/WKP2/SEG3

32

PJ1/WKP1/SEG2

33

PJ0/WKP0/SEG1

34

P10/TIOCA0

35

P11/TIOCB0

36

P12/TIOCC0/TCLKA

37

P13/TIOCD0/TCLKB

38

P14/TIOCA1/IRQ0

39

P15/TIOCB1/TCLKC

40

P16/TIOCA2/IRQ1

41

P17/TIOCB2/TCLKD

42

AV

S

S

43

P97/AN9/D

A1

44

P96/AN8/D

A0

45

P47/AN7

46

P46/AN6

47

P45/AN5

48

P44/AN4

49

P43/AN3

50

P42/AN2

51

P41/AN1

52

P40/AN0

53

VREF

54

AVCC

55

PH7/TONED/TMCI4

56

MD1

57

OSC2

58

OSC1

59

RES

60

NMI

61

STBY

62

VCC

63

XTAL

64

VSS

65

EXTAL

66

FWE

67

MD2

68

P77/TXD2

69

P76/RXD2

70

P75/TMO3/SCK2

71

P74/TMO2

72

P73/TMO1

73

P72/TMO0

74

P71/TMRI23/TMCI23

75

P70/TMRI01/TMCI01

76

P30/TXD0

77

P31/RXD0

78

P32/SCK0/SD

A1/IRQ4

79

P33/TXD1/SCL1

80

P34/RXD1/SD

A0

81

P35/SCK1/SCL0/IRQ5

82

PF3/ADTRG/IRQ3

83

C2

84

C1

85

V3

86

V2

87

V1

88

PH3/COM4

89

PH2/COM3

90

PH1/COM2

91

PH0/COM1

92

PN7/SEG40

93

PN6/SEG39

94

PN5/SEG38

95

PN4/SEG37

96

PN3/SEG36

97

PN2/SEG35

98

PN1/SEG34

99

PN0/SEG33

100

PM7/SEG32

R261
100k

C248
0.1

C249
0.1

C250
0.1

R285
1k

C308
0.1

R264
100k

X5
CR-764
19.6608 MHz

R187
12k

R189
12k

R190
12k

R188
10

D15
MA77

C232
0.1

C233
15p

C234
6p

C235
12p

R191
1M

R186
100k

R185
100k

D14 DAN222TL

Q15
DTA144EUA

R287
1k

R288
1k

R198
100

CP17

R387
100k

R286
100k

R393
100k

R392
47k

IC46
S-80942CNMC

1

OUT 2

VDD 3

VSS

4

NC

5

CD

C515
0.027

R442
100k

R460
100k

UNLK

CDEC

SDEC

BEEP

SENC

DDST

NOIS

OPT3

OPT2

OPT1

MMUT

RMUT

LV

IN

BA

TV

CSI

CSO

DDAC
DDSD

NWC

CPU5

5V

NWC

NWC

TMUT

TXC

PLST

DAST
DSDA

CCK

CENC0

CENC1

CENC2

XRTS

DUSE

CSFT

TEMP

CSFT

EPTT

PWR

PWON

POSW

PW

ON

ESCL

PMFM

ESD

A

ESDA

ESDA

ARXD

AT

X

D

AFON

SCK

DTPD

PGI2

HORN

MFDA

HLC

DASW

PGI3

RSSI

PGO1

PTT

O

BU

S

Y

PTTI

PGO2

MDIO

MSCK

PGI1

DIM

PA

PA

2

SSO

MTCK

NTXD

NRXD

MRDF

IGSW

FMDA

MDIR

MTDT

EXST

EXOE

CIRQ

XCTS

ARES

MD1

CCS

HANG

J10

IC26
HN58X24128FPI

1

A0

2

A1

3

A2

4

VSS

5

SDA

6

SCL

7

WP

8

VCC

R262
10k

R263
100k

C306
0.1

ESCL

ESCL

GND

GND

GND

CPU5

CPU5

CPU5

CPU5

CPU5

CPU5

GPS

C378
0.001

C379
47p

C380
22p

C381
47p

C390
0.001

C329
470p

C352
47p

C351
0.001p

C350
330

Q49
XP1214

Q51
2SK3019 

1

2

3

4

5

D71
HVC383

OUT0

BL

V

A

R57
47k

R58
100k

C82
0.1

C72
0.001

1

2

3

4

5

6

OUT1

LVIN

8V

CPORF

FINRF

5V

REF

MIX

IF

B

NWC

A

CPU5

5V

VCC

AFO

VOLTAGE LINE

TX LINE

RX LINE

Explanatory notes

Power OFF 4.6 V
  

ON 

 

0.0 

V

13.6 V

5.1 V

7.9 V

5.1 V

4.9 V

4.9 V

W 1.1 V

N 1.0 V

7.0 V

TX 0 V
RX 4.9 V

TX 2.5 V
RX 1.6 V

TX 4.1 V
RX 0.2 V

TX 7.9 V
RX 0V

TX 0.0 V
RX 3.5 V

TX 0.0 V
RX 1.9 V

TX 6.9 V
RX 0.0 V

TX 0.0 V
RX 2.8 V

TX 0.0 V
RX 7.5 V

TX 3.0 V
RX 0.0 V

TX 2.3 V
RX 2.1 V

6.9 V

6.4 V

6.4 V

TX: 7.0 V
RX: 7.0 V

TX 3.4 V
RX 0.0 V

TX 0.8 V
RX 0.8 V

11 - 4

Summary of Contents for IC-F2721

Page 1: ...SERVICE MANUAL UHF MOBLE TRANSCEIVERS...

Page 2: ...00mW to the antenna connector This could damage the trans ceiver s front end REPAIR NOTES 1 Make sure a problem is internal before disassembling the transceiver 2 DO NOT open the transceiver until the...

Page 3: ...T 5 5 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 FRONT A UNIT for IC F2700 Series 9 1 9 2 FRONT B UNIT for IC F280...

Page 4: ...2 5 kHz Narrow 4 0 kHz Middle 5 0 kHz Wide Spurious emissions 75 dB typical 0 25 W 1 GHz 1 0 W 1 GHz Adjacent channel power 60 dB min Narrow 70 dB min Middle Wide Audio frequency response 2 dB to 5 d...

Page 5: ...amic filter FI2 CFWLB450KGFA for narrow RF amplifier Q24 3SK293 D A converter IC30 M62334FP D A converter IC8 M62364FP PLL IC IC4 LMX2352TM FM IF IC IC12 TA31136FN DTMF decoder IC6 LC73872M YGR amplif...

Page 6: ...AN6123MS Mic amplifier IC5 TC75S51F LCD driver IC7 SED1526F0A Reset IC IC2 S 80942CNMC Mic switch IC8 TC4W53F Q3 2SC4116 Q4 DTC114TU Q5 DTC114TU Front CPU IC3 HD64F3687 Mic switch IC8 TC4W53F ALC amp...

Page 7: ...unit in the direction of the arrow REMOVING THE MAIN UNIT 1 Remove the bushing L w Remove the MAIN unit in the direction of the arrow J1 A B C D D L E F BEFORE REMOVING THE MAIN UNIT 1 Unscrew 8 scre...

Page 8: ...are applied to the 1st mixer circuit D17 D18 D23 D26 D68 and D69 employ varactor diodes that are controlled by the Main CPU IC23 via the D A converter IC30 pins 1 2 to track the bandpass filter These...

Page 9: ...the base band IC IC2 The output signals from the base band IC IC2 pin 20 are passed through the RX PA switch IC43 pins 1 15 and DIG ANA switch IC42 pins 3 4 The signals are applied to the AF volume IC...

Page 10: ...ed VCO signal is amplified at the buffer amplifiers Q20 Q22 and is then applied to the YGR Q23 amplifier via the T R switch D19 The CTCSS DTCS signals CENC0 CENC1 CENC2 from the Main CPU IC23 pins 89...

Page 11: ...SSO SCK 4 Q12 D9 D13 RX VCO2 Q11 D7 D11 RX VCO1 TX VCO Q16 D70 D71 6 10 14 15 16 PLL control signals from CPU IC23 15 3 MHz reference signal from reference frequency osciilator X2 IC4 LMX2352TM Shift...

Page 12: ...he audio signals The signals pass through or bypass scrambler section and are then applied to the limiter section after being passed through the high pass filter The filtered signals pass through the...

Page 13: ...l for the power switch circuit Q41 Q42 Low While power ON 43 SENC Outputs single tone encoder signal Pin number Port name Description 44 BEEP Outputs beep audio signals 45 SDEC Input port for single t...

Page 14: ...e Description 1 T1 Outputs the bandpass filters D23 D26 D68 D69 tuning signal 2 T2 While receiving Outputs the bandpass filters D17 D18 tuning signal While transmitting Outputs the TX power control si...

Page 15: ...ld Wiz ard Complete will appear Then click Finish u Eject the CD i The adjustment software icon appears on the desk top screen BEFORE STARTING SOFTWARE ADJUSTMENT Program the adjustment frequencies in...

Page 16: ...ce frequency 1 Receive sensitivity automatic 2 Receive sensitivity manual 3 PLL lock voltage preset for RX automatic 4 PLL lock voltage preset for TX automatic 5 S meter FM 6 S meter digital 7 Deviati...

Page 17: ...nna connector RF power meter 50 1 75 W DC power supply 13 6 13 2 V 20 A Frequency counter PC to the MIC connector to an RS 232C port JIG CABLE RS 232C cable straight IC F2721 D IC F2821 D IC F2710 IC...

Page 18: ...H CH 1 FRONT A B C o n n e c t a d i g i t a l multimeter or an oscillo scope to the check point CONTRAST 2 0 V FRONT A B R59 Preset LCD contrast 64 user set mode Receiving FRONT A UNIT for IC F2700 s...

Page 19: ...sor to RX LVA TX LVA and then push ENTER key REFERENCE FREQUENCY REF 1 Operating CH CH 12 Connect an RF power meter or 50 dummy load to the antenna connector Transmitting Rear panel Loosely couple a f...

Page 20: ...ear panel Connect a modulation analyzer with an oscilloscope to the antenna connector through an attenuator Set to square wave form FM DEVIATION NARROW MOD N C 1 Operating CH CH 6 Connect an audio gen...

Page 21: ...21D only 2 Operating CH CH 3 Transmitting MOD Dig H IC F2721D F2821D only 3 Operating CH CH 14 Transmitting CTCSS DTCS DEVIATION CTCSS DTCS 1 Operating CH CH 4 No audio applied to the MIC connector Se...

Page 22: ...PF tuning Digital RSSI Dig RSSI IC F2721D F2821D only 1 Operating CH CH 3 Connect the SSG to the antenna connec tor and set as Frequency 400 000 MHz L 450 000 MHz H Level 0 16 V 123 dBm Modulation OFF...

Page 23: ...1 6 C65 4030016930 S CER ECJ0EB1A104K B 52 31 6 C66 4030017490 S CER C1608 JB 1A 105K T B 51 6 26 3 C67 4030017490 S CER C1608 JB 1A 105K T B 51 6 24 8 C68 4030017460 S CER ECJ0EB1E102K B 50 7 21 7 C6...

Page 24: ...7 3 9 R62 7030004980 S RES ERJ2GEJ 101 X 100 B 26 10 1 R63 7030005160 S RES ERJ2GEJ 105 X 1 M B 31 2 4 3 R64 7030005220 S RES ERJ2GEJ 223 X 22 k B 29 2 10 1 R65 7030007290 S RES ERJ2GEJ 222 X 2 2 k B...

Page 25: ...90 S IC TA31136FN D EL B 27 9 28 4 IC13 1110005290 S IC NJM2115V TE1 F2721D F2821D only T 87 6 17 2 IC15 1110006230 S IC NJM2711F TE1 F2721D F2821D only B 87 5 19 2 IC16 1190002080 S IC AD7476ARTZ 500...

Page 26: ...NO NO LOCATION FI3 2020001780 S CER CFWCA450KEFA R0 F2721D F2821D only B 78 8 18 5 FI4 2030000410 S MLH FL 380 MFT46 3P 46 350 MHz B 34 3 43 2 FI5 2040001440 S LC NFE31PT152Z1E9L B 85 2 103 6 FI6 204...

Page 27: ...105 7030005000 S RES ERJ2GEJ 471 X 470 B 24 32 R106 7030008290 S RES ERJ2GEJ 473 X 47 k T 109 52 9 R107 7030005040 S RES ERJ2GEJ 472 X 4 7 k T 111 1 54 6 R108 7030005070 S RES ERJ2GEJ 683 X 68 k T 118...

Page 28: ...1D only B 116 2 5 2 R237 7030004980 S RES ERJ2GEJ 101 X 100 B 62 4 64 2 R238 7030005050 S RES ERJ2GEJ 103 X 10 k B 63 2 74 5 R239 7030004980 S RES ERJ2GEJ 101 X 100 B 61 4 74 5 R240 7030005090 S RES E...

Page 29: ...7030005090 S RES ERJ2GEJ 104 X 100 k B 148 75 8 R425 7030007300 S RES ERJ2GEJ 332 X 3 3 k T 25 9 16 1 R426 7030009320 S RES ERJ2GEJ 4R7 X 4 7 T 27 4 19 6 R427 7030005050 S RES ERJ2GEJ 103 X 10 k B 70...

Page 30: ...C124 4550003220 S TAN TEESVA 1E 105M8L B 75 7 51 C125 4030017420 S CER ECJ0EC1H470J B 74 8 54 C126 4030017380 S CER ECJ0EC1H050B B 68 59 C127 4030018860 S CER ECJ0EB0J105K T 76 9 34 7 C128 4030017460...

Page 31: ...6 4030017530 S CER ECJ0EC1H0R5B B 22 1 59 7 C268 4030017530 S CER ECJ0EC1H0R5B L B 24 7 59 3 MAIN UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION 4030017550 S CER ECJ0EC1H1R5B H B 24 7 59 3 C269 40300...

Page 32: ...1H 102K T B 8 9 87 C402 4030006980 S CER C1608 CH 1H 070D T L B 11 87 7 4030007010 S CER C1608 CH 1H 100D T H B 11 87 7 C403 4030017420 S CER ECJ0EC1H470J B 2 1 84 8 C404 4030017420 S CER ECJ0EC1H470J...

Page 33: ...91 5 4030011060 S CER GRM31M2C2H4R0CY21L F2710 H F2810 H T6 5 91 5 4030011070 S CER GRM31M2C2H5R0CY21L F2721 D L F2821 D L T6 5 91 5 C554 4030017550 S CER ECJ0EC1H1R5B H T 62 7 46 3 4030017570 S CER...

Page 34: ...0065250 2781 A lens 1 MP18 8930065240 2781 B lens 1 MP20 8930065170 2781 LED sheet 2 REF NO ORDER NO DESCRIPTION QTY J1 6510004880 Connector MR DS E 01 1 MP1 8010019801 2781 chassis 1 1 MP2 8110008270...

Page 35: ...3 2 4 5 4 5 4 2 4 5 4 2 4 5 4 3ERIES 3ERIES 5NIT MM INCH 2 4 5 4 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 30 0 0 7 7 7 7 0 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 5 4 LACK 2ED 0 0 0 0 0 0 0 0 0 0 0 2 4 5 4 0...

Page 36: ...4L Symbol XY Symbol K1 Symbol UF Symbol U73 Symbol 16 B E C DTC114EUA T106 Symbol 04 B E C DTC114TUA T106 Symbol 04 Symbol 26 Symbol H27 Symbol 9H Symbol 50 Symbol 5N S D G D S G2 G1 PMBFJ310 B C E B...

Page 37: ...00 H105 H110 H115 H0 V0 V5 V10 V15 V25 V30 V35 V20 V40 to MIC JACK CLO PTT MIC CLI 8V AFO MICE GND J2 7 8 1 2 1 3 5 7 2 4 6 8 AF VOLUME DIAL 9 1 FRONT A UNIT for IC F2700 Series TOP VIEW The combinati...

Page 38: ...onfiguration as the actual P C Board H0 V0 H115 H110 H105 H100 H95 H90 H85 H80 H75 H70 H65 H60 H55 H50 H45 H40 H35 H30 H25 H20 H15 H10 H5 V5 V10 V15 V25 V30 V35 V20 V40 to MAIN UNIT AFO MIC POSW MFDA...

Page 39: ...0 H105 H110 H115 H120 H125 H130 H135 H140 H145 H150 H155 H160 H165 H0 1 3 5 7 2 4 6 8 to MIC JACK CLO PTT MIC CLI 8V AFO MICE GND J2 7 8 1 2 AF VOLUME 9 2 FRONT B UNIT for IC F2800 Series TOP VIEW The...

Page 40: ...40 H35 H30 H25 H20 H15 H10 H5 H0 V5 V10 V15 V0 V25 V30 V35 V20 V40 to MAIN UNIT AFO MIC POSW MFDA GND SLQ GND MICE FMDA 8V GND VCC J1 12 11 2 1 9 4 FRONT B UNIT BOTTOM VIEW for IC F2800 series The com...

Page 41: ...1 1 30 16 J2 15 PTTI PTTO MCOT MCIN AUX BUSY MOWN SIG OPT1 OPT2 OPT3 OPV3 OPV2 OPV1 TMS TDI 3VAX TCK EMU1 TRST GND TDO EMUO VCC DIM HORN GND AFO GND DET GND IN GND PTT GND 5V VCC AMMT AFONO BEPO ARMT...

Page 42: ...V50 V55 V40 V65 V70 V75 V60 V80 V90 V95 V100 V85 V105 V110 V115 SP SP EXT SPEAKER 25PIN Connector 1 14 2 15 3 16 4 17 5 18 6 19 7 20 8 21 9 22 10 23 11 24 12 13 25 H_OUT2 TXD RXD RTS CTS GND VCC MMUT...

Page 43: ...5 30 4 6 2 2 6 2 6 2 6 2 2 2 2 6 6 6 6 0 7 2 37 5 02 33 2 0 64 ONLY 4 3 6 0 ONLY 8 62 3 3 3 7 ONLY 1 3 ONLY 1 4 5 1 4 6 3 4 53 4 3 37 4ONE ODULATION 4 33 4 3 ODULATION n 84 84 80 54 28 54 37 2 31 4 34...

Page 44: ...3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 0 0 0 6 8 8 6 2 3 4 34 633 3 3 6 0 7 0 0 7 0 0 0 0 0 0 7 0 0 7 0 0 7 0 0 7 0 42 0...

Page 45: ...34 633 3 3 6 0 7 0 0 7 0 0 0 0 0 0 7 0 0 7 0 0 7 0 0 7 0 42 0 4 7 0 07 0 0 3 0 3 0 4 2 6 0 4 6 0 4 6 0 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 0 0 0 3 0 28 0 48 0 0 3 0 28 0 48 0 21 0 21 4 0 21 0 21 42 6 0...

Page 46: ...TXIN 4 TXINO 5 LIMLV 6 EXTLMIN 7 MOD 8 VSS 9 TCLK 10 TDATA 11 DI O 12 RDF FC 13 SCLK 14 DIR 15 XOUT 16 XIN 17 VDD 18 EXPOUT 19 RXAFIN 20 RXAF 21 RXLPFO 22 RXINO 23 RXIN 24 TEST C1 47p C2 47p C26 47p C...

Page 47: ...19 1SV307 D41 MA2S728 FI5 NFE31PT152Z1E9L 1 2 3 FI6 NFE31PT152Z1E9L 1 2 3 FI7 NFE31PT152Z1E9L F2721 D F2821 D only 1 2 3 IC12 TA31136FN 9 10 11 12 13 14 15 16 L25 33nH L35 15nH L38 1H L43 15nH L42 15n...

Page 48: ...ntre 150 6165 Highway 17 Delta B C V4K 5B8 Canada Phone 1 604 952 4266 Fax 1 604 952 0090 URL http www icomcanada com E mail info icomcanada com A B N 88 006 092 575 290 294 Albert Street Brunswick Vi...

Page 49: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14127MZ C1 2005 Icom Inc...

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