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Icom VHF IC-F50, Service Manual Addendum

The Icom VHF IC-F50 is a reliable two-way radio that offers clear and seamless communication for various professional applications. For complete understanding and optimal usage, don't miss out on the service manual, available for free download at manualshive.com. Get acquainted with this powerful device today!

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      SECTION 11        VOLTAGE DIAGRAM

11 - 1

11-1 MAIN UNIT

C211

4.7

R104 220 k

R105 330 

k

R94 150 

k

C151 0.1

C200 47 

P

C199 0.001

C201

1

C202 0.1

R116 680 

k

R115 1.2  

k

L35

0.22   

H

C185 0.1

C167 0.1

R40 1.5 

k

C67 0.001

C75 10

R38 100 

k

R36 1.5 

k

R48 680

R34 100 

k

C60 0.01

R35 100

C59 0.001

C57 0.001

C52 12 

P

C53 0.01

C54 0.001

L12

0.22   

H

R27 470

R26 470

C35

1

C36 0.001

L9 56 nH

R17 47

C184 0.001

R18 4.7

R19 100 

k

R12 10

C30 0.1

C31 0.1

R173 5.6 

k

R175 220 

k

D23

MA2S111

C23 0.1

R171 220 

k

C28 3.5 

P

C26 100 

P

R13 100 

k

C27

0.001

C24 0.001

D6 MA2S077

D7 MA2C728

D5

1SV307

C14 11 

P

C73 0.001

T2

T1

C17 12 

P

C16 22 

P

MP5

L31 82 nH

C18 5 

P

R11 100 

k

C20

100 

P

D8 HVC375B

L7

67 nH

L8

6.8 nH

C55 4 

P

C50 0.001

C48 0.01

R25 1 

k

C44 4 

P

D10

HVC375B 

C45 0.001

R23 150 

k

C43

0.001

R21 220 

k

C39

0.001

C38 3 

P

R20 820

C32 0.001

R15 120 

k

C33 47 

P

R16 270

D9 HVC350B

C42

0.001

T2

L11 56 nH

R29 180

R32 100

C51 0.001

L13

0.82   

H

R31 47

C56 22 

P

C165 0.01

C162 56 

P

C164 7 

P

L33

0.82   

H

C71 0.1

C70 100 

P

R46 2.2 

k

R42 47 

k

C68 100 

P

C66 0.001

RSSI

NOIS

C63 47 

P

C65 0.001

3 2 1

4   5

C154 47 

P

C152 47 

P

C153 47 

P

C155 270 

P

C140 0.1

C213 0.1

R108 10 

k

C157 10 

P

C156 0.001

C158 0.1

C159 0.001

EP3

R101 1 

k

C143 0.001

CP1

C141 0.001

R100 10 

k

C149 0.47

R89

10 k

R95

5.6 k

C127

47 P

L26

68 nH

L38

68 nH

L27

3.3   H

L39

33 nH

C124

220 P

L25

82 nH

C123

68 P

R98 2.2 k

T5V

+5V

4.2

L28

3.3   H

L42

3.3   H

L43

3.3   H

C126

33 P

R79

1.8 k

R85

3.9 k

R84

3.9 k

R83

1.8 k

R87

470

R88

560

3.8

4.0

3.9

1.1

0

5.0

0

0

1.1

0

4.8

0

4.7

0

0.9

1

2

0

4.6

0

4.8

0

3.1

5.0

0

0

5.0

5.0

5.0

0

4.8

0

1.1

0

1.1

0

2.7

1.9

2.2

0

1.5

TX:+2.5dB

RX:+1.5dB

0

2.4

2.4

0

4

5

2

1

C102

7 P

C100

10 P

C183

10 P

C182

0.001

R172

22 k

R174

470 k

C22

1 P

C25

6 P

C19

0.001

L6

39 nH

L5

50 nH

R14

10 k

D4

HVC375B

C186

0.1

L20

EXCCL3225V

C86

100

L16

10.5 nH

C302

47 P

C10

0.001

L4

50 nH

L3

50 nH

C7

0.001

R2 4.7 

k

D2

1SV307

C6

0.001

L2

3.0 nH

1.7

0

J1

(CHASSIS)

From / 

to the 

antenna 

connector

L1

32 nH

C2

8 P

C4

11 P

D14

MA2S077

C93

15 P

C92

100 P

R82

4.7

C150

1

C207

10 P

R97

1 k

L32

33 nH

C147 3.3

R109

56

C209

0.001

C206 12 

P

C208 12 

P

C146 0.1

C138 47 

P

R187 39 

k

R110 33 

k

C145 470 

P

C195 4 

P

C194 5 

P

C192 3 

P

C193 3 

P

D17

HVC376B

D16

HVC376B

R86 120 

k

L24 10   

H

C129

1P

D18

1SV239

D21

HVC375B

C122 33 

P

C133 22 

P

C121 18 

P

C132 0.1

R91 33 

k

R90 220 

k

R92 100 

k

C137 0.01

D20

HVC376B

D19

HVC376B

L37 10   

H

C203 0.001

C134 33 

P

C114 33 

P

C116 0.01

EP1

C113 0.75 

P

C103 3 

P

C111 0.001

C205 22 

P

C105 0.001

C109 0.001

R76 100

R70 100

C108 0.01

R68 10 

k

R61 10

T5V

T5V

T5V

T5V

VCC

L19 47 nH

C95 0.001

C97 47 

P

C106 47 

P

C99 0.001

R67 100

R24 1 

k

R50 10 

k

D15 

MA2S077

R69 1 

k

R65 1.5 

k

R63 470

C95 0.001

C94 47 

P

C91 0.001

R55 4.7 

k

R54 100 

k

C84 470 

P

C83 0.001

R53 22

C98 10

MP1

C13 56 

P

C11 22 

P

R1 2.7 

k

C308 0.5 

P

D1 RB7006F–40

C15 0.001

C9 15 

P

C5 22 

P

R51 82 

k

C3 24 

P

C1 9 

P

C8 18 

P

C101 0.001

L15

4.7   

H

C291 0.001

R52 150

R62 100

C90 0.001

R59 4.7 

k

R58 33 

k

R57 68

C292 100 

P

C85 0.001

EP2

C87 27 

P

L18

22 nH

C81

1

C82

0.001

L17

23.2 nH

C89 0.01

C88 0.001

R71 100 

k

R72 4.7

L21 0.1   

H

C107 0.001

R75 220 

k

L41

0.1   

H

C118 0.5 

P

R80 10 

k

C120 470 

P

C119 0.001

C139 0.1

C110 470 

P

R77 100

C104 220 

k

R78 100 

k

L22 0.1   

H

C117 470 

P

C115 33 

P

D22

HVC375B

C190 5 

P

C148

10

C191 4 

P

R96 1.8 

k

C135 0.001

BAL

REF

/IN

S5V

UNLK

SCK

R117 4.7 k

R118

4.7 k

SO

PLST

MOD

DAST

R5V

R5V

+5V

+5V

6

8

4

5

7

R113 4.7 k

C161

10 P

C166

3 P

C169

0.1

R44

390 k

R43

470

C188 0.001

C62

82 P

C58

0.001

R5V

R5V

R5V

R5V

R5V

R5V

C41

10 P

C49

2 P

R28

12

C40

1.5 P

R22

10 k

C29

2.5 P

C37

0.01

R33

330

C61

100 P

X1

C69

100 P

R39

47

R45

150 k

1

2

3

4

5

C163

4 P

R111

100 k

V+

GND

MOD

EP6

D24

MA2S111

R93

1 k

PLL

LVA 

R5V

MP2

 (CHASSIS)

From / to 

the J401 

at the 

Front Unit

F1

1

2

+5V

+5V

S5V

+5V

+5V

+5V

+5V

S5V

VCC

+5V

VCC

VCC

R5V
T5V

VCC

S5V

T5V

S5V

T5V

R103

470 k

R102

47 k

S5V

S5V

15.3MHz

1.2Vp–p

REF

X2
VCOM

1

1

4

2

2

3

3

GND

VCC

OUT

+5V

R167 270 

k

R168

100 k

C296 0.001

C295 0.001

R169 100 

k

T5C

R5C

S5C

C241

0.001

C242

0.001

R162 4.7 

k

C231 0.01

R164 4.7 

k

C232 0.01

R163 10 

k

R166 2.2 

k

R165 10 

k

VCC

+5V

S5V

S5V

VCC

VCC

+5V

C230 0.001

C307 0.1

C237 00.1

C238 4.7

C239 0.1

R191 100 

k

C287 0.1

C224

22

R184 100 

k

R154 150 

k

R148 68 

k

C240 0.001

C220 0.022

C180 0.1

R157 10 

k

C266 0.0022

R134 33 

k

R129 47 

k

C269 0.001

R125 47 

k

C255 0.1

C290 0.1

C304 0.1

C288 0.1

EP5

C252 0.0015

SIGNAL

MIC

R139 100 

k

C279 27 

P

C280 27 

P

SD

C251 47 

P

C259 22 

P

C253 180 

P

C254 0.0012

C260 22 

P

C303 0.1

R194 10 

k

EP4

+5V

+5V

+5V

+5V

+5V

C267 0.01

C306 0.001

C222 0.01

C221 0.039

R155 10 

k

C227 0.01

C229 0.1

C243 0.1

R120 470

R196 470

C281 0.1

R192 100 

k

EXOE

RSSI

R193 100 

k

REF LVA

T1 T2

C226 0.001

R190

ERTU0E P473J

C235 0.01

C233

22

R5V

C234 0.1

R161 10 

k

C297 0.001

C236

10

C293 0.001

C294 0.001

+5V

EXSM

SO

SCK

R5C

T5C

S5C

MUT1

MUT2

PMFM

PMFM

MUT1

MUT2

EXOE

TMUT

C305 47 

P

R170 470 

k

3

5

4

D12

MA2S111

TEMP

CDEC

C225

470 P

R153

150 k

R147

100 k

R151

68 k

C171

4.7

C170

0.1

C172

0.001

2

3

1

R152

560 k

R180

1 k 

TONE
S5V

V+

GND

SDEC

4

11

R183

22 k

R182

22 k

R181

22 k

R133

18 k

C265

0.001

R121

12 k

C250

47 P

R135

1 M

C249

47 P

C248

47 P

C247

47 P

R122

390 k

PMFM

R132

4.7 k

R131

2.2 k

C261

1

C262

1

C264

22

R141

33 k

C271

0.1

R195

10 k

C274

0.1

C276

1

C277

1

+5V

+5V

C273

0.1

C289

0.1

5.0

0

Scrambler ON

MIC

0.00MHz

5.7Vp–p

R144 1 M

X3 CR–746

R145

10

C275 1

C263

0.001

R124

33 k

C256

0.0022

R126

1 M

R127

33 k

3.6864MHz

2.0Vp–p

R128

33 k

C257

0.1

C258

0.1

R123

82 k

C246

47 P

X4

CR–765

C245

47 P

R130

2.2 k

+5V

+5V

+5V

+5V

R119

10 k

C228

0.001

R188

220 k

C219

1

R189 220 k

+5V

+5V

C223 0.1

7

6

5

R185

470 k

R186

470

8

SIGNAL

9

10

S1

1 I

O

G

2

4 6 5 3

C168 0.1

+5V

S5V

T5V

VCC

T5V

VCC

VCC

FI1

FL–335

FI2

ALFYM450F=K

R10 1.5 

k

R7

120 

k

C80 0.1

R6 68 

k

C72 0.001

TMUT

R4 10 

k

C78 0.001

C74 0.001

T2

C76 0.1

C77 0.001

R3 10

2.6

0

R9

100

C79

0.1

R8 220 k

R5

10 k

D25

MA2S111

T5V

TMUT

0

4.9

3

5

4

2

1

2.4

0

J1

38

37

+5V

S5V

VCC

C300

0.001

C299

0.001

C298

0.001

C301 0.001

R81

ERJ2GE–JPW

9

10

11

12

13

14

15

16

CLOCK

DATA

LE

FC

NC

FOUT

P

B

FIN

LD

GND

DO

VCC

VP

OSOUT

OSCIN

8

7

6

5

4

3

2

1

1

2

3

4

5

6

7

8

OSCIN

OSCOUT

MIXOUT

VCC

IFIN

DEC

FILOUT

FILIN

MIXIN

GND

N-REC

N-DET

RSSI

IFOUT

QUAD

AFOUT

16

15

14

13

12

11

10

9

4

3

2

1

MTCK MTDT MDIO MRDF

MSCK MDIA

SCAT SCST SCK

BAL

CDCS

SO

SCK DAST

CTRL GND NB

VIN

VOUT

1

2

3

4

5

6

7

8

9

10

11

12

1

2

3

4

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

VIN1

VOUT1

VOUT2

VIN2

VDD

LD

CLK

DI

VIN3

VOUT3

VOUT4

VIN4

VIN8

VOUT8

VOUT7

VIN7

GND

RESET

VDAREF

DO

VIN6

VOUT6

VOUT5

VIN5

AGNDIN

AGND

TXIN

TXINO

LIMLV

EXTLMIN

MOD

VSS

TCLK

TDATA

DI/O

RDF/FC

TEST

RXIN

REINF

RELPFO

REAF

REAFIN

EXPOUT

VDD

XIN

XOUT

DIA

SCLK

1

2

3

4

5

6

7

15

14

13

12

11

10

14

13

12

11

10

9

8

22

23

24

1

2

3

8

7

6

5

1

2

3

4

9 8 7 6 5 4

16 17 18 19 20 21

TXIN

LFO/P

VDD

X/CLK

X

SDIN

I/01

O/I1

O/I2

I/02

CONT2

CONT3

VSS

RXOUT

IC

VSS

AT

LD/LTH

SCIN

VCC

B

A

Q

CE

XT

XT

GND

TXOUT VBIAS

RXIN HFO HBMI LBMI

NC P/S NC NC NC NC

VDD

CONT1

CONT4

I/04

O/I4

O/I3

I/03

24

23

22

21

20

19

18

17

16

15

14

13

8

7

6

5

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

STR

D

CLK

Q1

Q2

Q3

Q4

GND

V+

OE

Q5

Q6

Q7

Q8

Q'S

QS

CSFT

DAST

MRDF

MDIR

UNLK

TEMP

RSSI

LVIN

CDEC

SDEC

NOIS

MTCK

MTDT

EXOE

EXAT

SCAT

PLST

SCST

MSCK

MDIO

SCK

SO

SIGNAL

CDCS

TONE

MIC

3

2

1

4

5

6

1

2

3

1 2 3

6

5

4

+5V

S5V

VCC

VCC

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

CSFT

DAST

MRDF

MDIR

UNLK

TEMP

RSSI

LVIN

CDEC

SDEC

NOIS

MTCK

MTDT

EXOE

EXAT

SCAT

PLST

SCST

MSCK

MDIO

SCK

SO

SIGNAL

CDCS

TONE

MIC

Q17

2SC4116BL

Q18

2SK880Y

Q12

2SC51070

Q15

XP1214

Q16

DTC144EU

Q11

2SC51070

Q10

2SC51070

Q9

2SC5100

Q8

RD01MUS01

Q7

RD0MVS1

Q14

2SC4226R25

Q13

2SC4226R25

Q4

2SC4215 O

Q3

3SK299U73

IC16

NJM12904V

IC16

NJM12904V

Q2 3SK293

IC1

TA31136FN

Q19

2SC4116BL

IC17

TC4S66F

IC16

NJM12904V

IC5

NJM12902V

IC5

NJM12902V

IC5

NJM12902V

IC11

TC4W53FU

IC10 AK2346

IC14

FX214LG

IC13 BU4066BCFV

Q27

DTA144EU

IC15 TC3W03FU

IC6

M62363FP–650P

IC12

BU4094BCFV

IC5

NJM12902V

IC9 NJM2870

Q26

TPC6103

IC7

EW–460

Q21

2SA1577Q

Q29

DTC144EV

Q22

2SA1577Q

Q24

XP6501B

Q25

DTA144EU

IC5

NJM12902V

Q23

2SB1132Q

IC4 MB15A02PFV–1

Q1

2SK1829

IC2

TA75S01F

Voltage line

NOTES :

Common line
TX line
RX line

MOD

14

12

13

C218

4.7

R150

ERJ2GE-

JPW

Summary of Contents for VHF IC-F50

Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 6 VOLTAGE DIAGRAM 8 Feb 2008...

Page 2: ...30005070 S RES ERJ2GEJ 683 X 68 k T 27 2 45 2 R477 7030005070 S RES ERJ2GEJ 683 X 68 k T 25 2 45 2 S Surface mount FRONT UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION R478 7030005070 S RES ERJ2GEJ 6...

Page 3: ...F B 47 6 29 5 Q13 1530002920 S TR 2SC4226 T1 R25 B 45 22 4 Q14 1530002920 S TR 2SC4226 T1 R25 B 43 9 29 9 Q15 1590001400 S TR XP1214 TX T 45 8 26 2 Q16 1590000430 S TR DTC144EUA T106 T 43 2 26 8 Q17...

Page 4: ...2 k B 45 37 6 R100 7030005050 S RES ERJ2GEJ 103 X 10 k T 47 1 15 2 R101 7030005120 S RES ERJ2GEJ 102 X 1 k T 45 5 15 2 R102 7030005240 S RES ERJ2GEJ 473 X 47 k B 19 1 3 7 S Surface mount MAIN UNIT REF...

Page 5: ...017460 S CER ECJ0EB1E102K T 48 1 15 2 C143 4030017460 S CER ECJ0EB1E102K T 44 5 15 2 S Surface mount MAIN UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION C145 4030017730 S CER ECJ0EB1E471K T 36 4 20 3...

Page 6: ...9 37 9 C304 4030016930 S CER ECJ0EB1A104K Scrambler only T 16 7 37 2 C305 4030017420 S CER ECJ0EC1H470J B 53 5 41 5 C306 4030017460 S CER ECJ0EB1E102K T 31 37 6 C307 4030016930 S CER ECJ0EB1A104K T 76...

Page 7: ...ROF DAST CSFT PWON GND GND S5V CPU5 NC VCC VCC GND J401 to the MAIN unit J1 38 37 38 36 36 1 1 37 GND VCC VCC NC 5V S5V GND GND PWON CSFT DAST MROF MDIA UNLK TEMP RSSI LVIN KR1 CDEC SDEC NOIS MTCK MTO...

Page 8: ...C148 C149 C151 C152 C153 C154 C155 C156 C157 C158 C159 C161 C162 C163 C164 C165 C166 C167 C168 C169 C182 C183 C184 C188 C190 C191 C192 C193 C194 C195 C199 C209 C211 C220 C226 C227 C228 C231 C232 C233...

Page 9: ...XTAL 64 VSS 65 ESTAL 66 FWE 67 MD2 68 P77 TXD2 69 P46 RXD2 70 P75 SCK2 71 P74 72 P73 TMO1 73 P72 TMO0 74 P71 75 P70 TMRI01 TMCI0 1 76 P30 TXD0 77 P31 RXD0 78 P32 SCK0 IRQ 4 79 P33 TSC1 80 P34 RXD1 SDA...

Page 10: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 6 VOLTAGE DIAGRAM 8 Aug 2007...

Page 11: ...70 S RES ERJ2GEJ 683 X 68 k T 27 2 45 2 R477 7030005070 S RES ERJ2GEJ 683 X 68 k T 25 2 45 2 S Surface mount FRONT UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION R478 7030005070 S RES ERJ2GEJ 683 X 6...

Page 12: ...F B 47 6 29 5 Q13 1530002920 S TR 2SC4226 T1 R25 B 45 22 4 Q14 1530002920 S TR 2SC4226 T1 R25 B 43 9 29 9 Q15 1590001400 S TR XP1214 TX T 45 8 26 2 Q16 1590000430 S TR DTC144EUA T106 T 43 2 26 8 Q17...

Page 13: ...B 45 37 6 R100 7030005050 S RES ERJ2GEJ 103 X 10 k T 47 1 15 2 R101 7030005120 S RES ERJ2GEJ 102 X 1 k T 45 5 15 2 R102 7030005240 S RES ERJ2GEJ 473 X 47 k B 19 1 3 7 S Surface mount MAIN UNIT REF ORD...

Page 14: ...60 S CER ECJ0EB1E102K T 48 1 15 2 C143 4030017460 S CER ECJ0EB1E102K T 44 5 15 2 S Surface mount MAIN UNIT REF ORDER DESCRIPTION M H V NO NO LOCATION C145 4030017730 S CER ECJ0EB1E471K T 36 4 20 3 C14...

Page 15: ...9 C304 4030016930 S CER ECJ0EB1A104K Scrambler only T 16 7 37 2 C305 4030017420 S CER ECJ0EC1H470J B 53 5 41 5 C306 4030017460 S CER ECJ0EB1E102K T 31 37 6 C307 4030016930 S CER ECJ0EB1A104K T 76 27...

Page 16: ...R479 R480 R482 R483 R484 R485 R486 R487 R488 R489 R490 R491 R492 R493 R494 R495 R496 R497 R500 R501 R502 R503 R506 R507 R508 R509 R511 R512 R513 R514 R515 S401 X401 B6033D 1 4 3 2 VCC H0 H5 H10 H15 H2...

Page 17: ...8 C190 C191 C192 C193 C194 C195 C199 C209 C211 C220 C226 C227 C228 C231 C232 C233 C234 C235 C238 C239 C240 C242 C248 C249 C250 C255 C259 C260 C261 C262 C264 C267 C269 C273 C274 C275 C276 C277 C279 C28...

Page 18: ...VSS 65 ESTAL 66 FWE 67 MD2 68 P77 TXD2 69 P46 RXD2 70 P75 SCK2 71 P74 72 P73 TMO1 73 P72 TMO0 74 P71 75 P70 TMRI01 TMCI0 1 76 P30 TXD0 77 P31 RXD0 78 P32 SCK0 IRQ 4 79 P33 TSC1 80 P34 RXD1 SDA0 81 P3...

Page 19: ...1 C199 R24 1k 0 1 C307 C76 0 1 100K R193 10 MSVA C148 L37 10U R51 82K C126 33P DTA144EU Q25 R187 39K R97 1k R8 6 120K 0 1 C185 0 47 SVA C149 0 001 C230 C40 1 5P 4 7K R164 C53 0 01 C274 C155 270P R83 1...

Page 20: ...S 1407IZ C1 e Dec 2006 VHF TRANSCEVER...

Page 21: ...iver 2 DO NOT open the transceiver until the transceiver is disconnected from its power source 3 DO NOT force any of the variable components Turn them slowly and smoothly 4 DO NOT short any circuits o...

Page 22: ...R CIRCUITS 4 5 4 6 PORT ALLOCATIONS 4 5 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 SOFTWARE ADJUSTMENTS 5 4 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMIC...

Page 23: ...out CCITT filter 34 dB min 40 dB typical for Narrow Residual modulation EUR only 45 dB min 55 dB typical for Wide with CCITT filter 43 dB min 53 dB typical for Middle 40 dB min 50 dB typical for Narro...

Page 24: ...BCFV D A converter IC6 M62363FP Power amplifier Q7 RD07MVS1 T5 Regulator Q21 2SA1577 S5 Regulator Q23 2SB1132 Q24 XP6501 Q25 DTA144EU R5 Regulator Q22 2SA1577 Scrambler IC IC14 FX214LG Depended on ver...

Page 25: ...F 4 Unscrew 2 screws G 5 Take off the chassis unit in the direction of the arrow 6 Remove the cable H from the chassis unit REMOVING THE FRONT UNIT 1 Unscrew 4 screws M 2 Unsolder 11 points N 3 Unplug...

Page 26: ...the attenuator R26 R28 at the 1st mixer circuit Q3 to produce a 46 35 MHz 1st IF signal The 1st IF signal is passed through a monolithic filter FI1 in order to obtain selection capability and to pass...

Page 27: ...quelch is in use and a signal with a mismatched or no subaudible tone is received the tone squelch circuit mutes the AF signals even when noise squelch is open A portion of the DET AF signals from the...

Page 28: ...the transmit power output level and converts it into DC voltage The output voltage is at a minimum level when the antenna impedance is matched at 50 and is increased when it is mismatched The detecte...

Page 29: ...Q19 FM IF IC IC1 IF amplifier Q4 VCO switch Q15 Q16 1st mixer Q3 etc Transmit 5 V converted from the S5V line at the T5 regulator circuit Q21 The output voltage is supplied to the pre drive Q9 APC amp...

Page 30: ...ction and are then applied to the expander circuit to expand AF signals The signals pass through or bypass scrambler IC IC14 and are then applied to the analog switch IC13 pins 8 11 The signals are ap...

Page 31: ...M EXOE BEEP MTDT MTCK NOIS SDEC CDEC Output segment data to the LCD display Outputs serial data to the PLL IC MAIN unit IC6 pin 8 and D A convertor MAIN unit IC6 pin 8 Outputs serial clock signal to t...

Page 32: ...og switch IC13 pins 5 6 control signal to control the scrambler unit High While the scrambler function is ON Low While the microphone mute or AF mute is ON Outputs the analog switch IC13 pins 12 13 co...

Page 33: ...memory data at the same time STARTING SOFTWARE ADJUSTMENT q Connect IC F50 F51 and PC with OPC 966 JIG CABLE w Turn the transceiver power ON e Boot up Windows and click the program group CS F50 ADJ in...

Page 34: ...ance Wide FM deviation Narrow FM deviation Wide Middle NOTE 1 5 4 6 10 11 16 17 18 19 12 9 1 2 3 4 5 6 7 8 12 13 CTCSS DTCS deviation Squelch level Reference frequency Receive sensitivity automaticall...

Page 35: ...PC 966 JIG CABLE RS 232C cable straight IC F50 F51 DB9 female plug incl level converter circuit to an RS 232C port Personal computer to the antenna connector Attenuator 40 dB or 50 dB RF power meter 0...

Page 36: ...mitting 2 0 W 1 0 W EUR 88 Power L1 3 Operating CH CH1 Transmitting 1 0 W FM DEVIATION MOD N Narrow 1 Operating CH CH4 Set the FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF Detector P P 2 C...

Page 37: ...e adjusted automatically q 1 Set the cursor to BPF ALL on the adjustment program and then push ENTER key q 2 The connected PC tunes BPF T1 BPF T2 to peak levels or w 1 Set the cursor to one of BPF T1...

Page 38: ...L8 6200008090 S COL LQW2BHN68NJ01L B 50 9 4 5 L9 6200007750 S COL LQW2BHN56NJ01L B 47 3 7 7 L11 6200007750 S COL LQW2BHN56NJ01L B 41 3 5 2 L12 6200009350 S COL ELJRE R22G F3 B 43 5 12 8 L13 620000785...

Page 39: ...3 X 10 k T 27 1 3 R157 7030005050 S RES ERJ2GEJ 103 X 10 k B 25 4 3 4 R161 7030005050 S RES ERJ2GEJ 103 X 10 k B 50 9 36 6 R162 7030005040 S RES ERJ2GEJ 472 X 4 7 k B 49 6 36 1 R163 7030005050 S RES E...

Page 40: ...60 S CER ECJ0EC1H030B B 26 2 13 5 C167 4030016930 S CER ECJ0EB1A104K B 21 3 8 9 C168 4030016930 S CER ECJ0EB1A104K B 8 6 6 6 C169 4030016930 S CER ECJ0EB1A104K B 8 8 9 4 C170 4030016930 S CER ECJ0EB1A...

Page 41: ...05170 S RES ERJ2GEJ 474 X 470 k T 16 14 9 R418 7030005170 S RES ERJ2GEJ 474 X 470 k T 5 15 R420 7030005600 S RES ERJ2GEJ 273 X 27 k T 28 8 37 7 R421 7030005090 S RES ERJ2GEJ 104 X 100 k T 30 1 38 R422...

Page 42: ...CER C1608 JB 1A 105K T B 33 8 56 C441 4030016780 S CER ECJ0EB1C153K T 25 7 42 7 C442 4030016930 S CER ECJ0EB1A104K T 24 6 41 4 C443 4030017740 S CER ECJ0EB1E821K T 23 9 42 7 C444 4030016930 S CER ECJ...

Page 43: ...US Stainless NI ZU Nickel zinc 7 1 CABINET PARTS FRONT UNIT REF NO ORDER NO DESCRIPTION QTY R601 7210003130 TP76N97N 13F 10KA 2497 1 VR UNIT REF NO ORDER NO DESCRIPTION QTY MP701 8950005520 2403 9 pin...

Page 44: ...C Glued Not putting glue to the depths of a ditch of MP401 Painting from the lower part Painting with the upper part from a crack The glue must be applied to the areas when the front panel is replaced...

Page 45: ...SB1132 Q Symbol BAQ B E C 2SK1829 Symbol K1 3SK293 Symbol UF TPC6103 Symbol S3C 1 2 3 4 5 6 B C E DTC144EU Symbol 26 B E C E C B 2SC4116 BL Symbol LL E C B 2SC4116 Y Symbol LY E C B 2SK880 Y Symbol XY...

Page 46: ...R184 R110 C172 R189 R122 R121 R133 EP4 R120 C229 R147 R183 R181 R196 C265 C306 C246 EP5 R124 R36 R150 C245 C281 C304 R194 C303 C271 R109 C208 C202 R86 C145 C203 R80 EP1 R89 C143 R101 R100 C141 R6 R5...

Page 47: ...139 C249 C156 R108 C161 C124 C193 C133 C129 C190 C191 C127 C96 C97 R65 C93 R63 C95 R98 C239 C235 C108 R69 R162 R67 C137 R163 C158 EP3 C159 R145 R144 C289 C294 C226 C220 C242 R93 R191 C287 EP6 C140 C15...

Page 48: ...79 R417 C463 R403 R409 R484 R483 C402 R485 R411 R497 C421 R427 C499 C444 R470 R428 R511 C498 C405 C495 C404 R410 R408 R406 C406 R514 R405 C407 R407 C492 R508 C489 C493 C482 C481 R496 R509 C414 C492 C4...

Page 49: ...44 R442 C485 C500 R434 R445 C433 C484 R443 C426 R457 Q413 Q406 Q403 DS404 Q404 MC401 DS402 DS403 Q405 C437 DS406 DS405 H45 H35 H50 H40 H30 H25 H15 H5 H20 H10 0 V75 V65 V55 V45 V35 V25 V70 V60 V50 V40...

Page 50: ...0 V30 V20 V15 V5 V10 0 H30 H25 H15 H5 H20 H10 0 B6034B H30 H25 H15 H5 H20 H10 0 V35 V25 V40 V30 V20 V15 V5 V10 0 1 E S U D T U O F A N O F A W P N O W601 to the FRONT UNIT J402 4 9 3 VR UNIT TOP VIEW...

Page 51: ...O E C I M T E S E R D X R D X T C I M T T P 9 4 CONNECTOR UNIT TOP VIEW BOTTOM VIEW 4 0 7 C 5 0 7 D 3 0 7 C 2 0 7 C 1 0 7 C 3 0 7 D 2 0 7 D 1 0 7 D EP704 B6035C EP703 EP702 EP701 EP705 H15 H5 H10 0 V5...

Page 52: ...4LG IC13 BU4066 DS406 CL 165HR FRONT UNIT MAIN UNIT G R DS404_405 SML A12MT LED CTRL MIC MUTE PTT DET IC405 TA7368F PWR CTRL AF AMP AF VOL BEEP TONE SPON SPON SP1 MC1 PTT CONNECTOR AFO AFO MIC PTT VCC...

Page 53: ...164 4 7 k C232 0 01 R163 10 k R166 2 2 k R165 10 k VCC 5V S5V S5V VCC VCC 5V C230 0 001 C307 0 1 C237 00 1 C238 4 7 C239 0 1 R191 100 k C287 0 1 C224 22 R184 100 k R154 150 k R148 68 k C240 0 001 C220...

Page 54: ...Q S QS CPU5 CPU5 CPU5 CPU5 CPU5 CPU5 MD CPU5 CPU5 R457 470 R458 1 k R455 100 4 8 0 Backlight ON Backlight OFF RES CLI CLO MD PTT CPU5 CPU5 CPU5 CPU5 CPU5 CPU5 CPU5 CPU5 MCON D403 MA2S111 R403 1 k D401...

Page 55: ...C 2 0 7 D 5 0 0 1 M R V A B B A T M 0 8 0 C 4 0 7 C 1 0 0 0 5 0 7 D 5 0 0 1 M R V A B B A T M 0 8 0 C 3 0 7 D 5 0 0 1 M R V A B B A T M 0 8 0 C 4 0 7 D 5 0 0 1 M R V A B B A T M 0 8 0 C 2 0 7 C 1 0 0...

Page 56: ...lenwood 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 Unit 1 103 Garden Road Clayton VIC 3168 Austr...

Page 57: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14007IZ C1 e 2003 2006 Icom Inc...

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