background image

11 - 2

11-2 MAIN UNIT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J2

ICF3
GND
MDDA
DMDA
MCDA

ICF3

VCC

1
2
3

5

4

IC3

TC7S14FU

C12

0.1

R16

1M

R15

6.8k

D5V

R14

470

D5

1SS355

C11

0.0047

IC2

TLP121

D6

MA8062

for
DSC UNIT

J1

C9

0.1

DSC+

DSC-

GND

VCC

D1

MA8062

D2

MA8062

D3

MA8062

DATAS+

C1

0.1

R12

12

Q2

2SC4116

R11

4.7k

D4

DA204U

R13

100k

R2

22k

R17

47k

C10 10

Q1

DTC144TU

C7 0.1

C8 0.1

D5V

VCC

GND

DSCMOD
SAFO
GND
SMIC
MICG

CMDA

R10

5.6k

C6

0.1

R18

10k

5

6

7

IC1B

M5218AFP

C13

390p

C15

82p

R21

82k

R20

82k

C14

0.0033

R4

22k

R3

10k

3

2

1

4

8

IC1A

M5218AFP

R19

82k

R1

10k

R22

560

C2

0.001

T1

RESET

C30

0.001

R19

10

C31

68p

C32

0.022

C33

0.001

R22

1.5k

R23

100k

C40

0.001

R25

100

C42

0.022

C43

0.001

L28

2.2

µ

C41

0.01

R20

2.2k

L5

0.82

µ

DEMOD

C39

0.01

Q4

2SC2714

C48

0.22

C49 0.1

IC1

TA31136FN

C50

0.001

R26

470

C51

0.001

C52

0.1

C53

100p

X1

CDBCA450CX24

R27

1.2k

R28

390

C54

47p

C55

0.1

R29

1.5k

D5

MA8036

C56

10

C57

0.01

R8

CP3

C65

0.001

R35

68k

R36

680

L8

0.1

µ

C66

5p

Q5

2SC4215

C67

20p

R37

100

R39

100

C68

0.001

R40

47

C78

0.001

R38

68

C303

0.001

VCC1

  1

IN1

  2

ENB

  3

CLK

  4

DATA

  5

T1

  6

LOK

  7

CP1

  8

FI1

  9

FO1

 10

FO2

11

FI2

12

CP2

13

GND2

14

XO

15

XI

16

XB

17

VCC2

18

IN2

19

GND1

20

IC2

µ

PD3140GS

VCC

R8

8V

VCC

T8

A5V

8V
A5V

C79

0.022

Q42

DTA144EU

R246

100k

OPTIN
HANG

ATTA

ATTB

ATT2

MAIN BUS

PLL BUS

OPT BUS

VCC

TAUX3

TMODE

R195

1k

R196

1k

R199 100k

R200

100k

Q41

DTA144EU

RMUTM
RCV

RMUTS

ATT1

VCC

R182

39k

R183

39k

C248 0.027

R184 100k

R185 100k

OUT

  1

VDD

  2

VSS

  3

NC

4

CD

5

IC15

S-80928ANMP

TAUX3

TMODE

R186

100k

C249

10p

X3

DMX-26S

C250

33P

R187

1M

R188

390k

C251

24p

X4

CR-610

C252 24p

R189

1M

R190 10

R191

100k

R192

2.7k

C253 0.1

P71

26

HSTK

50

PA2

 76

P21/A17

100

P72

27

DVRH

28

DVSS

29

P73/DA00

30

P74/DA01

31

AVCC

32

AVRH

33

AVRL

34

AVSS

35

P50/AN0/SIN3

36

P51/AN1/SOT3

37

P52/AN2/SCK3

38

P53/AN3

39

VSS

40

P54/AN4/SIN4

41

P55/AN5/SOT4

42

P56/AN6/SCK4

43

P57/AN7

44

P80/IRQ0

45

P81/IRQ1

46

MD0

47

MD1

48

MD2

49

X1A

 77

X0A

 78

VSS

 79

X0

 80

X1

 81

VCC

 82

P00/AD00

 83

P01/AD01

 84

P02/AD02

 85

P03/AD03

 86

P04/AD04

 87

P05/AD05

 88

P06/AD06

 89

P07/AD07

 90

P10/AD08

 91

P11/AD09

 92

P12/AD10

 93

P13/AD11

 94

P14/AD12

 95

P15/AD13

 96

P16/AD14

 97

P17/AD15

 98

P20/A16

 99

IC16

MB90F583BPFV-G

R193

27k

DATAM
DATAS

R197

1k

R198 1k

R201

100k

R202 100k

R203 100k

R45

1k

C81

0.01

R204

150k

C254

0.01

R205

47k

R206

1k

R207

1k

R253

8.2k

C294

2.2

UNLK

PSTB

UNLK
DSDEC
TXDET
WXDEC

LBAT
SQL
RTXD
RRXD

PTT
BE

CK
DATA

MDDA

DATAS

C69

18p

X2

CR-659

C70 10p

C71 10p

R41 330

R42

47k

C72

0.001

C73

0.1

C74

0.001

R43 1k

Q6

2SK880

R44

10k

C75 0.01

C76 0.1

C283

0.001

R248 47k

R249

33k

R256

18k

R254

560

C293

0.1

R255

1k

C77 0.001

Q7

2SK210

C285

0.001

Q44

2SC4116

C286

0.1

R261

4.7k

R250

47

D29

1SS355

C295

0.047

CP2

C58

0.001

1

  2

3

4

5

FI3

ALFY450E

C59 0.1

C60 0.001

C61 0.01

C62 1

R30

330k

C63

220p

C64

220p

R32

33k

C103

0.001

R63

2.2k

C102

0.001

R33

20k

R31

820

R283

NTCCM16084LH

R8

HVS
HV
D5V

SMIC
SAFO
A5V
MOD
SP-
SP+
DSCMOD

R18

10k

R21

1.2k

FI1

FL-310

FI2

FL-310

C38

0.001

C45

39p

L7

56n

C47

0.001

Q3

3SK166

R241

56

C46

39p

C274 0.001

C34

0.001

C36 6p

C312 0.01

L30

0.15

µ

R279 1.5k

CP1

R72

100

C110

0.001

C111

0.001

R73

10

L18

82n

C112

1p

Q12

2SC2954

R74 1k

C114

0.001

C115

6.8

C116

22p

C117

18p

L19

47n

C118

39p

L20

47n

C119

18p

R75 10

C113 0.001

C322 47p

C323 470p

C96

0.001

C97

0.01

C98

12p

R57

100

R58

100

R60

2.2k

L16

0.1

µ

Q10

2SC4215

R61

220

C99 0.001

C100

0.001

C101

12p

D11

MA77

D12

MA77

R62

1k

R64

39

R65

2.2k

R66

390

C104

0.001

C105

0.001

R67

10k

R68

10k

L17

82n

Q11

2SC3775

C107 0.001

R70

10

C108

0.001

C109

18p

R71

1k

D13

1SS355

R59

3.3k

C106

47p

R69 100

T8

C313

47p

R55

68k

L15

0.1

µ

Q9

2SC4215

R56

680

C278

0.001

L12

3.9

µ

D10

MA363B

D9

MA363B

L13

LB-257

C297 1p

C298

2p

C299

4p

Q8

2SK210

L14

2.7

µ

R258

1k

L9

3.3

µ

D7 MA363B

D6

MA363B

D8 MA363B

C284 1p

L10

LB-258

C287 7p

C288

4p

C289

3p

C290

0.5p

C291

0.5p

L11

2.7

µ

Q45

2SC4116

R262

2.2k

R251

82

C304

0.22

R259

10

C305

0.22

C302

0.75p

R270

5.6k

C301

0.1

C300

0.001

C314

10

R276

47

C318

10

R209 1k

Q33

2SK1069

R212

2.7k

R252

4.7k

C292

0.22

R257

1k

C296

0.047

DSC

MICDSC

BE

D5V

R208

100k

C255

0.1

C256

10

C257

0.1

R210

1M

R211

56k

R225 47k

R226 47k

C259

0.1

A0

1

A1

2

A2

3

VSS

4

VCC

8

GND

7

SCL

6

SDA

5

IC17

HN58X2464TI

STRU
SCON

R194

100k

R213

1k

R216

1k

R214

1k

R215

1k

R243

1k

R244 1k

R245

1k

STRU
SCON

OPSTB
PSTB

PTTM

SRESET

CK
DATA

P01

ATT1
ATT2

R217

1k

Q34

DTA144EU

R218       10k
R219       100k
R220       100k
R221       100k
R222       100k

R224

100k

PTTS
MMUTE
SMUTE

SP
HI/LO
SEND

/TMUT

MLDA

LMDA

R223

100k

Q35

DTA144EU

Q36

DTC144TU

C258

0.1

R227

15k

Q37

DTC144TU

R228

1k

R229

1k

D24

DA204U

C260

0.001

ICF3

RRXD

D5V

UART BUS

RTXD
CMDA

D26

HSU88

R233

1k

R234

47k

C261

0.1

C262

0.1

R236

6.8k

1
2
3
4

5

6

7

8

IC18

TC7W14FU

R235

1k

R238

100k

R230

4.7k

Q40

2SK1069

for FLASH

DTV
TAUX3

GND
TMODE
TRES

GND

P01

SOT0

SIN0
SCK0

1

2

3

4

5

6

7

8

9

10

J1

P01

TAUX3

TMODE

RESET

MCDA
CMDA

1
2
3
4
5
6
7
8
9
10
11
12
13
14

J3

W3

ICF3
GND

D5V

VCC

GND

DSCMOD

SAFO

GND

SMIC
MICG

MDDA
DMDA

C264 470p

C265 47p

C266 47p

C267 47p

R239

100k

Q38

2SC4081

Q39

2SA1576

D28

DAP202U

R240

100k

C306

0.1

R231

47

ICF3

MCDA
CMDA

MDDA

MCDA

DATAS

C268 47p

C269 47p

C270 47p

C271 47p

C272 0.1

C273 0.1

SRESET

MLDA
LMDA

from LOGIC

unit J4

SP-

SP-

VPP

HV

HVS
MLDA
LMDA

1
2
3
4
5
6
7
8
9

10
11
12
13
14

J4

GND

SP+

SP+

GND

SRESET

D5V

8V

DSC UNIT

MAIN UNIT

RSTX

PA1

PA0

P97/POT

P96/PWC

P95/TOT2/OUT1

P94/TOT1/OUT0

P93/TOT0/IN3

P92/TIN2/IN2

P91/TIN1/IN1

P90/TIN0/IN0

RX*

TX*

P65/CKOT

P64/PPG0

P63/PPG1

P62/SCK2

P61/SOT2

P60/SIN2

P87/IRQ7

P86/IRQ6

P85/IRQ5

P84/IRQ4

P83/IRQ3

P82/IRQ2

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

BPLVLM

BEEPM

FLASH BUS

P22/A18

P23/A19

P24/A20

P25/A21

P26/A22

P27/A23

P30/ALB

P31/RDK

VSS

P32/WRLX

P33/WRHX

P34/HRQ

P35/HAKX

P36/RDY

P37/CLK

P40/SIN0

P41/SOT0

P42/SCK0

P43/SIN1

P44/SOT1

VCC

P45/SCK1

P46/ADTG

P47

C

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

OPSTB

PSTB

CK

DATA

PTTM

PTTS

MMUTE

SMUTE

SP

HI/LO

SEND

TMUT

SRXD

STXD

TCK

CLRX

CLTX

CLRX

CLTX

ICF3

DATAM

-

DATAM+

8V

T8

R8

VCC

SQLI

AFOUT

QUAD

IFOUT

RSSI

N_DET

N_REC

GND

MIXIN

9

10

11

12

13

14

15

16

FILIN

FILOUT

DEC

IFIN

VCC

MIXOUT

OSCOUT

OSCIN

8

7

6

5

4

3

2

1

VCC

8V

A5V

MAIN(2)

7.98MHz
4.9Vp0p

4.71V

455kHz

RX : 3.03V
TX : 0V

RX : 0V
TX : 7.95V

RX : 0.3V
TX : 13.2V

4.64V

2.53V

5.07V

2.54V

MAIN(1)

BUS LINE

SQLI

R8

RF

LOCK

VCC

T8

VGG

PI

HVS

HV

D5V

MAIN BUS

OPT BUS

SMIC
SAFO

A5V

MOD

SP-
SP+

DSCMOD

DEMOD

R8

T8

A5V

8V

VCC

Summary of Contents for VHF MARINE TRANSCEIVER IC-M501EURO

Page 1: ...VHF MARINE TRANSCEIVER iM501EURO SERVICE MANUAL...

Page 2: ...rew Icom screw E7 IC M501EURO CHASSIS 10 pieces Addresses are provided on the inside back cover for your convenience REPAIR NOTES 1 Make sure a problem is internal before disassembling the transceiver...

Page 3: ...EDURES 5 1 PREPARATION 5 1 5 2 PLL ADJUSTMENTS 5 2 5 3 TRANSMITTER ADJUSTMENTS 5 2 5 4 RECEIVER ADJUSTMENTS 5 4 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS 7 1 IC M501EURO 7 1 7 2 HM 126 7 1 SECTI...

Page 4: ...z Spurious emissions 0 25 W Adjacent channel power 70 dB Residual modulation 40 dB Audio harmonic distortion Less than 10 at 60 deviation Audio frequency response 1 dB to 3 dB of 6 dB octave from 300...

Page 5: ...025 156 025 156 075 156 075 156 125 156 125 156 175 156 175 156 225 156 225 156 275 156 275 156 325 156 325 161 600 157 000 161 650 157 050 161 700 157 100 161 750 157 150 161 800 161 850 161 900 161...

Page 6: ...plifier Q12 2SC2954 1st mixer Q3 3SK166 Reset IC IC15 S 80928ANMP Located under side of the point Reference oscillator X2 CR 659 21 25 MHz 1st IF filter FI1 FI2 FL 310 Power module IC3 SC 1302 System...

Page 7: ...ening the transceiver case Follow the case opening procedure shown here when you want to install an optional unit etc q Remove the 6 screws as shown below and open the trans ceiver w Remove the 4 scre...

Page 8: ...the 1st mixer circuit Q3 to produce a 21 7 MHz 1st IF signal The 1st IF signal is applied to a pair of crystal filters FI1 FI2 to suppress out of band signals and is then amplified at the IF amplifier...

Page 9: ...ifier to obtain the pre emphasis charac teristics The amplified signals are applied to the IDC amplifier IC13a pin 2 via the analog switch IC12 pins 8 9 and pins 4 3 and are passed through the splatte...

Page 10: ...s D6 D7 of the TX VCO to stabilize the oscillated frequency 4 3 3 RX LOOP The generated signal at the RX VCO Q8 D9 D10 enters the PLL IC IC2 pin 19 and is divided at the programmable divider section a...

Page 11: ...T CPU IC1 and Q2 Q3 Q8 are dimmer circuit and control the LCD backlight LED CONTRAST CIRCUIT CPU IC1 and Q1 Q4 are contrast circuit and control the 8 step display contrast 4 7 PORT ALLOCATIONS 4 7 1 S...

Page 12: ...44 45 46 57 58 60 61 62 66 67 68 69 71 75 100 1 2 3 4 5 6 7 8 10 11 12 13 14 15 16 17 19 20 23 STRU SCON OPSTB PSTB CK DATA PTTM PTTS MMUTE SMUTE SP HI LO SEND TMUTE SRXD STXD CLRX CLTX ECK Outputs c...

Page 13: ...generator Standard signal generator SSG Oscilloscope AC millivoltmeter External speaker Attenuator GRADE AND RANGE Frequency range 300 3000 Hz Measuring range 1 500 mV Frequency range 0 1 300 MHz Outp...

Page 14: ...pe to check point CP1 Connect a digital multi meter or oscil loscope to check point CP2 Loosely couple the frequency counter to the antenna con nector 2 5 V 3 4 4 1 V 2 8 V 2 5 3 5 V 156 8000 MHz MAIN...

Page 15: ...t R84 Frequency deviation adjustment R84 Reference frequency adjustment C70 Lock voltage check point for RX CP1 Lock voltage check point for TX CP2 Lock voltage adjustment for RX L13 PTT J7 1 8 Audio...

Page 16: ...nd connect a distortion meter with a 4 load to EXT SP receptacle Connect an SSG to the antenna connector and set as Frequency 156 800 MHz Level 10 V 97 dBm Modulation 1 kHz Deviation 3 5 kHz Receiving...

Page 17: ...5 5 Receive sensitivity adjustment L4 L3 L2 L1 Squelch check point CP5 Squelch adjustment R33 Receive sensitivity check point CP3...

Page 18: ...k R48 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 k R49 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 k R50 7030003750 S RESISTOR ERJ3GEYJ 394 V 390 k R51 7030003690 S RESISTOR ERJ3GEYJ 124 V 120 k R52 7030003...

Page 19: ...1530002850 S TRANSISTOR 2SC4116 BL TE85R Q20 1520000460 S TRANSISTOR 2SB1132 T100 R Q21 1590000430 S TRANSISTOR DTC144EUA T106 Q22 1520000460 S TRANSISTOR 2SB1132 T100 R Q23 1590000430 S TRANSISTOR D...

Page 20: ...683 V 68 k R36 7030003420 S RESISTOR ERJ3GEYJ 681 V 680 R37 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 R38 7030003300 S RESISTOR ERJ3GEYJ 680 V 68 R39 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 R40 703000...

Page 21: ...OR ERJ3GEYJ 100 V 10 R191 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 k R192 7030003490 S RESISTOR ERJ3GEYJ 272 V 2 7 k R193 7030003610 S RESISTOR ERJ3GEYJ 273 V 27 k R194 7030003680 S RESISTOR ERJ3GEYJ...

Page 22: ...C79 4030008880 S CERAMIC C1608 JB 1C 223K T A C81 4030006900 S CERAMIC C1608 JB 1E 103K T A C96 4030006860 S CERAMIC C1608 JB 1H 102K T A C97 4030006900 S CERAMIC C1608 JB 1E 103K T A C98 4030007020 S...

Page 23: ...608 JB 1C 273K T A C249 4030007010 S CERAMIC C1608 CH 1H 100D T A C250 4030007070 S CERAMIC C1608 CH 1H 330J T A C251 4030009650 S CERAMIC C1608 CH 1H 240J T A C252 4030009650 S CERAMIC C1608 CH 1H 24...

Page 24: ...030003410 S RESISTOR ERJ3GEYJ 561 V 560 C1 4030011600 S CERAMIC C1608 JB 1C 104KT N C2 4030006860 S CERAMIC C1608 JB 1H 102K T A C6 4030011600 S CERAMIC C1608 JB 1C 104KT N C7 4030011600 S CERAMIC C16...

Page 25: ...SISTOR ERG2SJ 150 C1 4010000460 CERAMIC DD104 B 471K 50V J1 6510003550 CONNECTOR S07B EH S MC1 7700001600 MICROPHONE KUC2123 030245 S1 2260000980 SWITCH SKHHLP014A S2 2260000080 SWITCH SKHHAM024A S3 2...

Page 26: ...lter 1 LOGIC UNIT REF NO ORDER NO DESCRIPTION QTY 7 1 REF NO J1 6510022240 Connector 272MRW 12P 1 DSC UNIT ORDER NO DESCRIPTION QTY REF NO MP1 8510013150 2345 VCO case 1 MP2 8930014140 Earth spring D...

Page 27: ...CH MP10 CH MP20 CH W1 CH EP1 L MP1 L S1 L MP36 CH MP8 CH W1 HM 126 CHASSIS MP19 CH MP11 CH MP42 CH MP44 CH MP37 CH MP51 CH MP47 CH MP21 CH MP21 CH MP7 CH MP9 CH MP1 CH MP18 CH MC1 M MP4 CH MP12 CH MP...

Page 28: ...Y Symbol QK Symbol OY3 Symbol BR Symbol LL Symbol QO Symbol VX Symbol YG Symbol XY Symbol FJ Symbol K Symbol UK Symbol 16 Symbol 06 Symbol 26 Symbol W1 B E C B C E B C E B C E B E C B C E B E C B E C...

Page 29: ...9 1 9 1 LOGIC UNIT SECTION 9 BOARD LAYOUTS TOP VIEW...

Page 30: ...40 41 61 80 60 102 103 128 VPP D5V RESET STXD SRXD GND 1 6 J2 KEYM GND 1 to HM 126 J2 2 J1 SP SP D5V SRESET VPP LMDA HV SP SP GND GND 8V MLDA HVS 1 13 14 2 to MAIN unit J4 J4 DIALB GND DIALA SQLG SQL...

Page 31: ...o OPTION UT 98 or UT 112 10 J6 5V GND OPTIN SCON GND GND GND SCK SDATA OPSTB MICI DETI MICO DETO W1 to VR unit J1 GND VOL1 VOL2 from DSC unit J3 1 13 14 2 J3 GND DMDA CMDA VCC DSCMOD GND MICG ICF3 MDD...

Page 32: ...9 4 BOTTOM VIEW 1 1 1 1 7 14 8 8 4 5 7 14 8 4 8 5...

Page 33: ...DDA MCDA D5V VCC SAFO SMIC 9 3 DSC UNIT TOP VIEW 9 4 ANT UNIT 9 5 PWR CORD UNIT 1 4 to MAIN unit J1 HV HV GND GND TOP VIEW 9 6 VR UNIT 1 to MAIN unit W1 3 J1 VOL1 VOL2 GND 9 7 SQL UNIT 1 to LOGIC unit...

Page 34: ...4 5 6 7 J1 KGND 1 2 3 4 5 6 7 P3 PTT MIC MICE SPMIC KEYM UP ON 2 0V DN ON 3 0V H L ON 3 8V GND KGND W1 W4 W3 R5 15 W2 C1 470p C2 470p R1 12k SP1 S36G04K 4 MC1 KUC2123 030245 UP PTT DN S1 SKHHLP014A S2...

Page 35: ...L UNIT X1 4 91 MHz SQLV SUB MPU KEY BOARD DIAL UNIT IC2 HD66712SA03FS IC1 PD78F9418AGK 9EU D5V ENCODER SQL UNIT DS1 Q1 Q4 2SK1069 LCD CONT DIM CTRL Q2 2SC4116 Q3 2SB1132 Q8 2SC4116 DS2 DS17 SML 311YT...

Page 36: ...COM10 COM9 SEG6 SEG7 SEG8 SEG9 SEG10 SEG16 SEG17 SEG18 SEG19 SEG20 SEG26 SEG27 SEG28 SEG29 SEG30 SEG36 SEG37 SEG38 SEG39 SEG40 SEG46 SEG47 SEG48 SEG49 SEG50 SEG56 SEG57 SEG58 SEG59 SEG60 COM1 COM2 COM...

Page 37: ...0 C110 0 001 C111 0 001 R73 10 L18 82n C112 1p Q12 2SC2954 R74 1k C114 0 001 C115 6 8 C116 22p C117 18p L19 47n C118 39p L20 47n C119 18p R75 10 C113 0 001 C322 47p C323 470p C96 0 001 C97 0 01 C98 12...

Page 38: ...O I 10 I O 11 CONT D 12 CONT A 13 VDD 14 IC10 BU4066BCF R135 1M R136 1M R137 2 7k C198 0 1 C199 0 1 C200 0 1 C195 0 01 C192 1 C193 1 R280 10k R281 820 OPT BUS MAIN BUS SAFO SMIC R117 1k C182 0 22 C18...

Page 39: ...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 40: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13702HZ CD q 2000 Icom Inc...

Reviews: