background image

R320

3.3k

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

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

MAIN
UNIT
(1)

IC20
HD64F2268TF

PM6/SEG31

PM5/SEG30

PM4/SEG29

PM3/SEG28

PM2/SEG27

PM1/SEG26

PM0/SEG25

PL7/SEG24

PL6/SEG23

PL5/SEG22

PL4/SEG21

CVCC

PL3/SEG20

PL2/SEG19

PL1/SEG18

PL0/SEG17

PK7/SEG16

PK6/SEG15

PK5/SEG14

PK4/SEG13

PK3/SEG12

PK2/SEG11

PK1/SEG10

PK0/SEG9

VSS

PJ7/WKP7/SEG8

PJ6/WKP6/SEG7

PJ5/WKP5/SEG6

PJ4/WKP4/SEG5

PJ3/WKP3/SEG4

PJ2/WKP2/SEG3

PJ1/WKP1/SEG2

PJ0/WKP0/SEG1

P10/TIOCA0

P11/TIOCB0

P12/TIOCC0/TCLKA

P13/TIOCD0/TCLKB

P14/TIOCA1/IRQ0

P15/TIOCB1/TCLKC

P16/TIOCA2/IRQ1

P17/TIOCB2/TCLKD

AVSS

P97/AN9/DA1

P96/AN8/DA0

P47/AN7

P46/AN6

P45/AN5

P44/AN4

P43/AN3

P42/AN2

P41/AN1
P40/AN0
VREF
AVCC
PH7/TONED/TMCI4
MD1
OSC2
OSC1
RES
NMI
STBY
VCC
XTAL
VSS
EXTAL
FWE
MD2
P77/TXD2
P76/RXD2
P75/TMD3/SCK2
P74/TMO2
P73/TMO1
P72/TMO0

P71/TMRI23/TMCI23
P70/TMRI01/TMCI01

P30/TXD0

P31/RXD0

P32/SCK0/SDA1/IRQ4

P33/TXD1/SCL1

P34/RXD1/SDA0

P35/SCK1/SCL0/IRQ5

PF3/ADTRG/IRQ3

C2

C1

V3

V2

V1

PH3/COM4

PH2/COM3

PH1/COM2

PH0/COM1

PN7/SEG40

PN6/SEG39

PN5/SEG38

PN4/SEG37

PN3/SEG36

PN2/SEG35

PN1/SEG34

PN0/SEG33

PM7/SEG32

BUS LINE1

8V
5V

BUS LINE2

T8V
R8V
ANT

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

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

RXFO

RXGS

RXIN

MSKGS

MSKIN

TXOUT

IOCGS

IOCIN

TXFO

AGND

CST

MICIN
MICGS
CALO
ALCO
CMPIN
CCHG
CMPO
TXFI
VDDA
VDDD
STB

DIN

DCK

REGS1

REGS2

XOUT

XIN

MSKE

TRD

RRM

RDT

FCLR

VSSD

VSSA

MSKST

PWROP

PWRON

PWRGS

PWRIN

EXPO

ECHG

EXPGS

EXPIN

IC14
TC35453F

DET

DISC

B

R111
22k

C164

0.001

C165
0.001

C166
0.001

R113

390k

R285

4.7k

SDEC

R241

100k

R242
39k

C316
820p

R243
82k

C317

820p

R245

180k

C318

0.1

-
+

9

10

8

IC21c
NJM12902V

R244
390k

R246
1.5k

C319

0.047

R233

100k

R120

100k

Q20
2SC4213

R118

68k

R119

180k

R115

12k

C167
0.027

C168
0.039

C169
0.039

R116
1.5k

+
-

5
6

7

IC21b
NJM12902V

R117
5.6k

C170
0.033

C171

0.0047

MCOT

MCIN

A

C187
0.0022

C186
0.0022

C188
0.1

R122

10k

Q21
2SC4116

R121

10k

C185

0.1

R123

4.7k

R125

22k

R124

33k

C189        0.1

C176

22

R230 10k

R129 470k

C190
100p

R130 27k

R131 68k

C180        0.1

C174        0.1

C181        0.1

R127
22k

C361

0.0012

R126
22k

APST

5V

X3
CR-563

C177

15p

C178

18p

ADIN

SCK

ADIN

AMSK

ATRD

SO

AFCL

R137

1k

ARTM

ARDT

C193        0.1

R136        1k

C195        0.1

C194
120p

R135
100k

R134
150k

R133
220k

C192
0.0047

C191

0.039

R132
56k

C196
0.01

8
7
6
5

1
2
3
4

VCC
WP
SCL
SDA

A0
A1
A2

VSS

IC23
HN58X24128FPI

ESDA

ESCL

R282
100k

5V

R281 10k

C343

0.1

1
2
3
4
5
6
7

8

9

10

11

12

13

14

IC19
LC73872M

INPUT
NC
PO
OSCO
OSCI
NC
VSS

LOADB

SD

ACK

STD

EST

NC

VDD

MICI

5V

5V

5V

5V

FSW

C311

0.1

C182

0.1

DDAC

R238

100k

DDST

DDSD

1
2
3
4
5
6
7
8
9

10
11
12

13

14

15

16

17

18

19

20

21

22

23

24

VIN1
VOUT1
VOUT2
VIN2
VDD
LD
CLK
DI
VIN3
VOUT3
VOUT4
VIN4

VIN5

VOUT5

VOUT6

VIN6

DO

VDAREF

RESET

GND

VIN7

VOUT7

VOUT8

VIN8

IC6
M62364FP

R216        33k
R215        3.9k

BEPO

R218
27k

C360
0.1

BEEP

DAST

C183
0.047

SCK
SO
MICI

R146

100k

CTCS
TENC

C284

0.01

R220
56k

C283
0.001

R231
1k

DET

SQIN

MOD

REF

5

4

1
2
3

CD

NC

OUT
VDD
VSS

C344

0.027

IC24
S-80942ANMP-DD6

TEMP
AFVI

EPTT

RES

CLO
CLI
CSFT
DUSE

XCTS
XRTS

R288
10k

MD1

R299

100k

PWR

PWON

D28
DAN222

BAL

1

5

3

2

IC25
TC4S66F

4

Q49
DTC144EU

Q50
DTC144EU

R317

100k

C377

0.1

R321

68k

C399

0.1

Q41
DTA144EU

PA

R280

10

X4
CR-520

C341

12p

C342

22p

R277
12k

C339
27p

R278

12k

D27
MA77

C340

0.01

1
2
3
4

5

6

7

8

AO1
AO2
AO3
AO4

GND

SDA

SCL

VCC

IC7
M62334FP

VAG

R302

10k

R222

470

C286

0.1

T1
T2
T3
T4

R276

12k

DET

R247
22k

C320

0.039

R248
22k

C323

0.0068

C322

0.01

R249
22k

+
-

5
6

IC5
NJM12904V

7

C321 0.1

R252

220k

C327

4.7

C325

0.0033

C324
0.1

R253
18k

R254
47k

R255
47k

-
+

3

2

1

IC5
NJM12904V

IC22
TC4S66F

2

4

3

1

5

V+

GND

8

4

C349

0.1

CDEC

R258

470

VAG
SQIN

Q35
XP1214

1

2

3

5

4

R251

68k

DUSE

SENC

C328
1

R259

5.6k

R261
33k

R263

22k

R260

33k

C329

0.018

R262
33k

C330

68p

C331

0.01

Q36
2SC4116

R264

2.7k

R219

22k

C333

0.001

C332

1

TONE

REM

CENC2

CENC1

CENC0

R267 22k

R268 56k

R269 180k

R286 1k

R312

3.9k

R266

3.9k

R270
47k

C334

0.0082

R271
47k

IC5
NJM12904V

R256 100k

SCK
OSDA

5V

5V

47k

C336

820p

R274

47k

Q37
2SC4116

R273
4.7k

TENC

R275
27k

C337
0.47

Q38
DTC144EU

XTXD

XRXD

ATRD

NTXD

NRXD

CIRQ

ARTM

DIM

R303

100k

CENC2

CENC1

CENC0

AFCL

ARDT

AMSK

ADIN

APST

PMFM

ESDA

ESCL

PA

R149

10k

RSSI

LVIN

BATV

UNLK

CDEC

SDEC

BEEP

SENC

PWON

IGSW

DDST

POSW

NOIS

OPT3

OPT2

OPT1

MMUT

RMUT

BUSY

HANG

PTTO

KR0

KR1

KR2

C345 0.1

OSDA

DAST

PGO2

PGO1

PGI3

PGI2

PGI1

LINH

LCS

LCK

LSO

PLST

C151 47p

TXC

TMUT

NWC

DDSD

DDAC

SO

SI

SCK

CCS

5

6

7

8

4

3

2

1

PMFM

R180
5.6k

C240

0.022

C241

0.001

R179
33k

IC15
TC4W53FU

+
-

14

12
13

IC21d
NJM12902V

NWC

C244

56p

C243

270p

Q22
DTC144EU

R182
68k

C242

0.0012

R181
68k

R185
33k

C246

330p

R186

39k

R189

27k

R187

56k

TONE

CTCS

-

+

2

3

1

IC21a
NJM12902V

C296

0.1

R190
4.7

VAG

C362        0.1

R304        56k

C386        0.1

R318        12k

C200        0.1
C201        0.1
C202        0.1

R147
100k

R322
100k

1
3

5

2

4

R193
100k

C249
470p

R191

220k

R192 220k

C250 0.1

C359
0.1

C351

VCC

CPU5V

R8V

T8V

5V

8V

0.047

R196

22k

R195
1k

C251
0.1

C402

0.47

D30

MA2S111

R194
2.2k

AFON

SIG

AFONO
CPU5V

AFON

D31
DAN222

C253
0.1

VCC

IC18
TA75S01F

4

3

5

2

1

C255

220

R198

10k

C256
470

R199

10k

C254 0.001

J4

R188

18k

H

G

C252
0.1

R197

10k

J5

C257 47p

D23
DA221

C269

0.001

Q25
2SD1664

R203

4.7k

R202

4.7k

C272

2.2

Q29
DTC144EU

TMUT

D24
DA221

C270

0.001

Q26
2SD1664

C271

2.2

TXC

R204

4.7k

R205

4.7k

Q30
DTC144EU

6

5

4

1

2

3

Q27
2SB1132

Q28
XP6501

R156

4.7k

R239 4.7k

R150 100k

C273

5V

VCC

0.001

C274
4.7

C266

10

C262

0.1

O

I

G

IC9
TA7808F

C261

0.1

C265

220

R200

10k

R201

470

Q23
2SJ377

HV

5V

VOC

8V

C260 47p

C259 0.001

C258 470

D22 DSA3A1

EP3

EP3

W2

C268

10

C264

0.1

G

O

I

IC10
AN78L05M

C263

0.1

R298
100k

R297

300k

J6

C293 0.001

VCC
DIM

HORN

GND

PAAF

GND

DISC

GND

IN

GND
PTT

C292 47p

C290 0.001

C291 0.001

C294 0.001

Q48
DTC144EU

PA

VCC

VCC

CPU5V

Q33
DTC144EU

DIM

Q32
DTC144EU

HORNO

DET

DET

EPTT

R228

100k

Q31
2SJ144

R227

1M

C295

10

C287

CPU5V

5V

R8V

8V

VCC

0.001

F

MOD

D

E

SIG

SIGOUT

D26
MA2S111

R229

1M

R226
100k

HV

HV

P1

+
-

CHASSIS
SP1

AFO

Q24
DTC144EU

PWR

CPU5

L36
4.7

µ

C352

22

C347

470

C373

0.001

GND

V+

4

11

C248

0.001

IC21
NJM12902V

8V
5V

T8V
R8V
ANT

VCC

8V

ANT

5V

T8V
R8V

VCC

8V

ANT

5V

T8V
R8V

VCC

CPU5

R112
10k

R128
47k

C184

0.1

LINH

Q43
DTC144EU

C173
4.7

C179
470p

C279

0.1

R217
27k

C278 0.1

R250

120k

R265
39k

C338

0.01

Q40
DTC144EU

Q39
DTC363EK

IC8
LA4425A

R224 47

C289 0.1

R225 10k

C288 0.1

R223 1k

MAIN UNIT (2)

R240
100k

C315

0.022

VAG

C310
0.1

R319
47k

C282

0.1

C280
4.7

C281

470p

R257
470k

C335
0.047

R148

100k

PLRS

VCC

ANT

CHASSIS
J1

R159
10k

R287
10k

to
OPC-617

2.5V

4.1Vp-p
(3.579MHz)

16mVrmS

1.7Vp-p
(2/5 TONE)

TX:0.5V
RX:1.1V

2.9Vp-P
(19.66MHz)

1.8V

0.6Vp-p
(CTCSS)

4.9V
(DTCS)

5.0V
(AFON)

TX:8.0V
RX:0V

TX:0V
RX:8.0V

5.0V

8.0V

13.1V

5.0V

4.5V
(PWR ON)

MEASUREMENT CONDITIONS

 VOLTMETER
 Amplitude(Oscilloscope):100MHz
 Frequency:440MHz
 Transmission:25W

11 - 3

Summary of Contents for IC-F620

Page 1: ...SERVICE MANUAL UHF TRANSCEIVER iF610 iF620 iF621...

Page 2: ...R 1110003490 S IC TA31136FN IC F610 MAIN UNIT 5 pieces 8810009990 Screw PH BT M3 8 ZK IC F620 Bottom cover 10 pieces Addresses are provided on the inside back cover for your convenience REPAIR NOTES 1...

Page 3: ...ON 5 1 5 2 PLL ADJUSTMENT 5 3 5 3 SOFTWARE ADJUSTMENT 5 4 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 FRONT UNIT 9 1 9 2 MAIN UNIT...

Page 4: ...440 000 490 000 MHz H band 480 000 512 000 MHz USA 480 000 520 000 MHz EUR GEN N W 8K50F3E 16K0F3E 12 5 kHz Narrow 25 kHz Wide N M 8K50F3E 14K0F3E 12 5 kHz Narrow 20 kHz Middle Max 256 ch 16 channels...

Page 5: ...IC10 AN78L05M VCO circuit CPU IC20 HD64F2268TF Antenna switch Low pass filter circuits 1st mixer Q3 3SK272 2nd IF filter FI2 ALFYM450F K FM IF IC IC1 TA31136FN D A converter IC6 M62364FP Referance cr...

Page 6: ...point D from the plate and remove the plate Unsolder 3 points E from the antenna connector Remove the clip F Disconnect the cable G from J5 Unscrew 11 screws H H G F D E J5 Lift up the front portion o...

Page 7: ...ixer circuit converts the received signals to a fixed frequency of the 1st IF signal with the PLL output frequency By changing the PLL frequency only the desired frequency will pass through a MCF Mono...

Page 8: ...the CPU IC20 pin 46 via the CDEC line to control the AF mute switch 4 2 TRANSMITTER CIRCUIT 4 2 1 MICROPHONE AMPLIFIER CIRCUIT MAIN unit The microphone amplifier circuit amplifies audio signals withi...

Page 9: ...equency The PLL output frequency is controlled by the divided ratio N data of a programable divider The PLL circuit contains the TX RX VCO circuit Q14 Q13 The oscillated signal is amplified at the buf...

Page 10: ...ated Outputs IF bandwidth control signal High While IF bandwidth is narrow Input port for the data signals from the DTMF decoder IC19 Outputs clock signal to the DTMF decoder IC19 Outputs data signals...

Page 11: ...hing Input port for the connected modem unit via external connector J9 Output port for the connected modem unit via external connector J9 33 34 36 37 38 39 40 41 43 44 45 46 47 48 49 50 51 52 55 59 68...

Page 12: ...date condition t Set or modify adjustment data as desired 5 1 EQUIPMENT DC power supply RF power meter terminated type Frequency counter FM deviation meter DC voltmeter GRADE AND RANGE Output voltage...

Page 13: ...F T1 0 Enter to sweep BPF T2 0 Enter to sweep BPF T3 0 Enter to sweep BPF T4 0 Enter to sweep TXF Enter to start S METER Enter to start D A BPF T1 50 32h 0 98 V BPF T2 50 32h 0 98 V BPF T3 50 32h 0 98...

Page 14: ...000 MHz L 440 000 MHz M 480 000 MHz H Receiving Output power Low1 Transmitting Operating freq 430 000 MHz L 490 000 MHz M 520 000 MHz H Receiving Output power Low1 Transmitting MAIN Connect a digital...

Page 15: ...ating freq 415 000 MHz L 465 000 MHz M 500 000 MHz H Output power Low1 IF bandwidth Wide CTCSS 88 5 Hz DTCS code 007 Set the FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF Detector P P 2 No...

Page 16: ...set as Frequency 400 000 MHz L 440 000 MHz M 480 000 MHz H Level 14 V 84 dBm Modulation 1 kHz Deviation 3 5 kHz N W 2 8 kHz N M Receiving Set an SSG as Level 0 45 V 114 dBm Modulation 1 kHz Deviation...

Page 17: ...90 S CERAMIC C1608 CH 1H 470J T C9 4030007090 S CERAMIC C1608 CH 1H 470J T C10 4030007090 S CERAMIC C1608 CH 1H 470J T C11 4030007090 S CERAMIC C1608 CH 1H 470J T C12 4030007090 S CERAMIC C1608 CH 1H...

Page 18: ...790000660 S DIODE MA728 TX D2 1750000510 S DIODE UM9401F 25W D3 1710001060 DIODE XB15A407 45W D4 1750000710 S VARICAP HVC350BTRF D5 1750000760 S DIODE MA4PH224 D6 1790000620 S DIODE MA77 TX D8 1750000...

Page 19: ...OR ERJ3GEYJ 221 V 220 R77 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 k R78 7030003410 S RESISTOR ERJ3GEYJ 561 V 560 R79 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 k R80 7030003440 S RESISTOR ERJ3GEYJ 102 V...

Page 20: ...SISTOR ERJ3GEYJ 471 V 470 R259 7030003530 S RESISTOR ERJ3GEYJ 562 V 5 6 k R260 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 k R261 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 k R262 7030003620 S RESISTOR ERJ3G...

Page 21: ...ROLYTIC ECEV1EA330SP L 4510005750 S ELECTROLYTIC ECEV1EA220SP M H C92 4030009920 S CERAMIC C1608 CH 1H 050B T C93 4030009910 S CERAMIC C1608 CH 1H 040B T 25W 4030009350 S CERAMIC C1608 CH 1H 3R5B T 45...

Page 22: ...600 S CERAMIC C1608 JB 1E 104K T C279 4030011600 S CERAMIC C1608 JB 1E 104K T C280 4510004650 S ELECTROLYTIC ECEV1EA4R7SR C281 4030011340 S CERAMIC C1608 CH 1H 471J T C282 4030011600 S CERAMIC C1608 J...

Page 23: ...C387 4030011600 S CERAMIC C1608 JB 1E 104K T C388 4030017490 S CERAMIC C1608 JB 1A 105K T C389 4510005630 S ELECTROLYTIC ECEV1EA330SP L 4510005750 S ELECTROLYTIC ECEV1EA220SP M H C390 4030007050 S CER...

Page 24: ...BT M2 8 NI ZU 4 MP13 8810009990 Screw PH BT M3 8 ZK 6 MP14 8930057890 Non woven sheet CF 1 MP15 8930057940 Shield sponge N EUR only 1 ACCESSORY PARTS F1 5210000120 Fuse FGB 15A 25W 2 5210000080 Fuse F...

Page 25: ...C MP13 C MP11 C MP5 M MP2 M MP3 M MP11 C MP6 M MP13 C MP9 C MP8 M W2 M J4 M MP14 M MP20 M MP1 M MAIN UNIT MP4 M MP13 M MP11 C J1 C MP7 C SP1 C MP8 C MP11 C Unit abbreviations F FRONT UNIT M MAIN UNIT...

Page 26: ...K880 Y 2SK1829 3SK272 3SK293 DTA144EUA T106 DTC144EUA T106 DTC363 EK XP1214 XP6501 AB Symbol BAR Symbol R24 Symbol LL Symbol AB Symbol QO Symbol R25 Symbol MFO Symbol DAQ Symbol VG Symbol 4L Symbol XY...

Page 27: ...SECTION 9 BOARD LAYOUTS 9 1 FRONT UNIT TOP VIEW 9 1 8V 2 8 to microphone 1 7 J1 AFO MICE GND CLO PTT MIC CLI...

Page 28: ...1 to MAIN unit J2 19 2 20 J2 GND PWR LINH LCS LCK LSO AFVI CLI GND MIC 8V 5V KR0 KR1 KR2 FSW HORN CLO PTT AFO 1 16 48 33 32 17 49 64 9 2 BOTTOM VIEW FRONT UNIT...

Page 29: ...PO RMUT DET DISC REM CCS CIRQ SO SI SCK PTTI PTTO MCOT MCIN AUX BUSY MDWN SIG OPT1 OPT2 OPT3 GND OPV3 OPV2 OPV1 to optional unit PTT 11 to optional cable OPC 617 1 J6 GND IN GND DISC GND PAAF GND HORN...

Page 30: ...1 4 8 1 7 14 8 5 12 11 1 1 7 14 8 23 33 22 44 34 1 25 26 50 51 75 76 100 9 4 BOTTOM VIEW MAIN UNIT...

Page 31: ...44EU J6 PAAF C PTTO J1 PTTI J1 DS12 LCD MICI AF AMP SW D31 DAN222 DTC144EU Q50 SW DTC144EU Q49 PA SW NJM12902V IC21 M62334FP IC7 TONE CTCS SIG TC4W53FU IC15 PM FM AMP D A A DER EXPAN Q21 DEMOD MSK HPF...

Page 32: ...30 SEG26 29 SEG25 28 SEG24 27 SEG23 26 SEG22 25 SEG21 24 SEG20 23 SEG19 22 SEG18 21 SEG17 20 SEG16 19 SEG15 18 SEG14 17 SEG13 16 SEG12 15 SEG11 14 SEG10 13 SEG9 12 SEG8 11 SEG7 10 SEG6 9 SEG5 8 SEG4 7...

Page 33: ...20T152 C380 0 001 C379 22p C381 22p C382 0 001 L37 0 1 R9 220 R8 220 L5 LW 25 C12 470p C375 0 001 C13 47p D2 UM9401F 25W D3 XB15A407 45W L4 15n C15 8p T8V C365 5p R69 4 7k D15 MA77 R50 10k R235 1k C30...

Page 34: ...7 100k C377 0 1 R321 68k C399 0 1 Q41 DTA144EU PA R280 10 X4 CR 520 C341 12p C342 22p R277 12k C339 27p R278 12k D27 MA77 C340 0 01 1 2 3 4 5 6 7 8 AO1 AO2 AO3 AO4 GND SDA SCL VCC IC7 M62334FP VAG R30...

Page 35: ...a Inc Glenwood Centre 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 Icom Canada A B N 88 006 092 575 290 2...

Page 36: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13817HZ C1U q C 2002 Icom Inc...

Reviews: