Icom IC-M2A Скачать руководство пользователя страница 30

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TEMPV

FCON

UNLK

PLST

SCK
SDATA

DAST

SCK

SDATA

DAST

SCK

SDATA

R192

390

DET

C191

0.01

C192

R194
100 k

MODC

PCON

MODC

PCON

BEEP
VOLO
AFV

CPU5V

Q250

UN911H

PTT

C254

0.01

IC260

TC4W66F

R258
4.7 k

R300

20 k

ATIS8

ATIS7

ATIS6

ATIS5

ATIS4

ATIS3

ATIS2

ATIS1

R302

20 k

DETM

MICM

AFOUT

R304

20 k

SPO

J251

BM02B-ASRS-TF

1
2

GND

R306

20 k

R308

20 k

D350

DA204U

Q350

DTC144TU

R353

1 k

CPU5V

R351

1 k

R310

20 k

R312

20 k

R314

20 k

MICM

DETIN

DETO

DET

R253
2.2 k

IC200

NJM2902V

1
2
3
4
5
6
7

14
13
12
11
10
9
8

8
7
6
5

1
2
3
4

5V
DETM
MICO
MICIN

R255
150 k

R271

56 k

R272
120 k

C265
150 P

R273

22 k

R279
1.5 k

R276
180 k

C263

0.01

R288
220 k

R281

33 k

Q280

2SC4213 B

R286

10 k

IC280

TA7368F

AFOUT

R284

R350
470 k

CPU5V

IC340

HN58X2416TI

TEMPV

R346

CPU5V

IC360

HD6433844RA60H

CPU5V

LCDC1

LCDC2

SCK

R362 1 k

PLST

SDATA

X360

CR-610

R365 1 M

IVOLM
CLOUT
CLIN

AFVS
R5VS

R372
100 k

R373
100 k

R374

68 k

R371
100 k

BEEP

CP360

UNLK

TDEC

R360 1 k

R361 1 k

R363 1 k

R364 1 k

DAST

R366 220 k

R367 120 k

SCK

PLST

SDATA

DAST

CLIN

RESET

BTYPE

CHEXT

WXTV

R343

10 k

IC341

S-80942ANMP-DD6

PTT

NC
VCC
NC
VIN
RIPPLE

10
9
8
7
6

POUT

PWGND

PREGND

PHASE

1
2
3
4
5

R289
150 k

BEEP

NOISV

RSSIV

BEEP

NOISV

RSSIV

NOISV

RSSIV

VOLO

C267

0.22

WXTV

R263
100 k

C376

0.1

MIC

CP253

CP254

J250

HSJ1594-010050

CP255

CP252

CP251

CLONE

SPO
AFOUT
MIC
GND

CLONE

SPO
AFOUT
MIC
GND

MC250

PTTSW

S250

R251

470

C250

0.01

R250
100 k

C251

R260

12 k

C260

R261
3.9 k

C261

0.1

R256

18 k

R202
100 k

R204
4.7 k

R205

27 k

R376
100 k

C200

0.01

C257

0.01

C262

0.01

R264
100 k

R265
100 k

C300

0.0033

R301

10 k

R303

10 k

R305

10 k

R307

10 k

R309

10 k

R311

10 k

R313

10 k

R315
20 k

R257
4.7 k

C264

0.0056

C379

56 P

R277
100 k

R274
390 k

R282

10 k

C281

0.47

C285

0.1

C282

C289

220

C350

0.01

CP350

CP353

CP351

CP354

CP352

C361
0.047

C363
0.047

C364
0.047

R345
470 k

C360

0.01

R341

10 k

R340

10 k

ESCK

ESDA

C342

100

C341
0.027

C365
0.047

C366
0.047

C367
0.033

C368
0.047

CP355

C288
0.047

R283

C286

C287
150 P

TDETV

BATTV

BTYPE

C283

0.1

C284
0.001

C280

0.47

R275

10 k

C205
0.018

R214

15 k

C206
0.001

C207

0.1

C378

0.0047

C377
820 P

C266
0.027

R278

1 k

R352

15 k

C351

47 P

C352

47 P

CLOUT

C340

0.01

CLIN

IVOLM

R262
1.8 k

R375
4.7 k

CP250

C252
0.001

R252

33 k

S320

S323

CHWX

SQL

SCAN

DOWN

16CH

S321

S322

S324

S325

S326

S327

R201

15 k

R203
1.2 M

R207

27 k

C202

0.1

R206

18 k

R377

82 k

R378

82 k

R379

82 k

A0
A1
A2
VSS

8
7
6
5

VCC

SCL
SDA

1
2
3
4

OUT
VDD
VSS

1
2
3

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

P91/SEG34
P92/SEG35
P93/SEG36
P94/SEG37/M
P95/SEG38/DO
P96/SEG39/CL2
P97/SEG40/CL1
P40/SCK32
P41/RXD32
P42/TXD32
P43/IRQ0
AVCC
PBO/AN0
PB1/AN1
PB2/AN2
PB3/AN3
PB4/AN4
PB5/AN5
PB6/AN6
PB7/AN7
PC0/AN8
PC1/AN9
PC2/AN10
PC3/AN11
AVSS

P90/SEG33

P87/SEG32

P86/SEG31

P85/SEG30

P84/SEG29

P83/SEG28

P82/SEG27

P81/SEG26

P80/SEG25

P79/SEG24

P76/SEG23

P75/SEG22

P74/SEG21

P73/SEG20

P72/SEG19

P71/SEG18

P70/SEG17

P67/SEG16

P66/SEG15

P65/SEG14

P64/SEG13

P63/SEG12

P32/SEG11

P61/SEG10

P60/SEG9

SEG18
SEG19
SEG20
SEG21
SEG22
SEG23

5VS
MICM

WET
CPU5V

NOISV
BATTV
TDETV
TEMPV
RSSIV
PTT

SEG17

SEG16

SEG15

SEG14

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SCAN

CHWX

16CH

DPWN

SQL

ATIS8
ATIS7
ATIS6
ATIS5
ATIS4
ATIS3
ATIS2
ATIS1

50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26

DS360

A0153A

COM1

COM2

COM3

SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23

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

SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
COM1
COM2
COM3

T5VS

V5VS

LEDL

ESCK

ESDA

LEDK

CP361

UNLK

BPFS

C370

18 P

C371

22 P

C372

0.1

C373

0.1

C374

0.1

C375

0.1

P57/WKP7/SEG8
P56/WKP6/SEG7
P55/WKP5/SEG6
P54/WKP4/SEG5
P53/WKP3/SEG4
P52/WKP2/SEG3
P51/WKP1/SEG2
P50/WKP0/SEG1

PA0/COM1
PA1/COM2
PA2/COM3
PA3/COM4

VCC

V0
V1
V2
V3

VSS

CVCC

P37/AEVL

P36/AEVH

P35/TXD31
P34/RXD31
P33/SCK31

P32/RESO

P10/TMOW

P11/TMOFL

P12/TMOFH

P13/IMIG

P14/IRQ4/ADTRG

P15/IRQ1/TMIC

P16/IRQ2

P17/IRQ3/TMIF

VSS

OCS2

OSC1

TEST

RES

P20/SCK1

P21/SI1

P22/SD1

P23

P24

P25

P26

P27

P30/PWM

P31/UD

R212
1.5 k

R213

68 k

AFV

VOLO

AFV

MOD

BEPST

VOLIN

BEPST

VOLIN

NOISV

MOD

BEPST

RSSIV
VOLIN

BEPO

DET

BEEP

NOISV

RSSIV

VOLO
AFV

MOD

BEPST

VOLIN

BEPO

DET

BEEP

NOISV

RSSIV

VOLO

AFV

MOD

BEPST

VOLIN

BEPO

DET

MOD

BEPO

1.9 V

7.9872 MHz
3.4 Vp-p

SECTION 11

VOLTAGE DIAGRAM

11 - 1

11-1 MAIN UNIT

Содержание IC-M2A

Страница 1: ...SERVICE MANUAL VHF MARINE TRANSCEIVER...

Страница 2: ...sses 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 until the transceiver is disconnect...

Страница 3: ...S 4 3 4 5 CPU PORT ALLOCATIONS 4 4 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 PLL AND TRANSMITTER ADJUSTMENTS 5 4 5 3 RECEIVER ADJUSTMENT 5 5 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PAR...

Страница 4: ...450 MHz Rx 156 025 MHz 163 275 MHz Rx 156 000 MHz 163 425 MHz 16K0G3E FM BP 224 7 2 V DC 20 C to 60 C 4 F to 140 F 15 C to 55 C 5 F to 131 F 10 ppm 1 5 kHz 1 5 A 1 2 A 0 7 A 0 6 A FRG only 200 mA 20...

Страница 5: ...075 156 125 156 125 156 175 156 175 156 225 156 225 156 275 156 275 156 325 156 325 156 375 156 425 156 475 Rx only 156 575 156 625 Receive 157 050 161 700 157 100 161 750 157 150 161 800 161 850 161...

Страница 6: ...157 150 157 150 157 200 157 250 157 300 157 350 157 400 157 850 156 025 156 075 156 075 156 125 156 175 156 175 156 225 156 225 156 275 156 275 156 325 156 325 156 375 156 425 156 475 Rx only 156 575...

Страница 7: ...2125F IF amplifier Q151 2SC2714 Y TX RX switch D50 D51 MA77 Antenna switching circuit D90 1SV307 D91 1SS375 1st mixer Q150 3SK272 VCO circuit IF DETECTOR IC IC170 TA31136FN PLL IC IC1 PD3140GS D A con...

Страница 8: ...1 screw A 2 x 10 mm and remove 1 washer B Unscrew 3 screws C 2 x 8 mm Remove the rear panel and rubber from the front panel Unscrew 1 nut D Unscrew 2 screws E 2 x 6 mm Take off the chassis unit in th...

Страница 9: ...e signal is then mixed with a 2nd LO signal for conversion into a 450 kHz 2nd IF signal IC170 contains the 2nd mixer limiter amplifier quadrature detector and active filter circuits A 21 25 MHz 2nd LO...

Страница 10: ...signal at the VCO circuit Q21 Q22 D22 D23 The oscillated signal is amplified at the buffer amplifiers Q23 Q24 4 2 3 DRIVE POWER AMPLIFIER CIRCUITS MAIN UNIT The signal from the VCO circuit passes thr...

Страница 11: ...a the TX RX switching diode D50 D51 Shift register Prescaler Phase detector Loop filter Programmable counter Programmable divider X1 21 25 MHz 2nd LO signal 21 25 MHz to the FM IF IC IC170 Q21 Q22 D22...

Страница 12: ...Low While H L key is pushed Input port for the SQL key Low While SQL key is pushed Input port for the Y key Low While Y key is pushed Pin number 54 55 56 57 58 83 84 85 86 88 91 93 94 95 Port name DOW...

Страница 13: ...AND RANGE Output voltage 7 5 V DC Current capacity 3 A or more Measuring range 0 1 10 W Frequency range 100 300 MHz Impedance 50 SWR Less than 1 2 1 Frequency range 0 1 300 MHz Frequency accuracy 1 pp...

Страница 14: ...k SINAD meter Speaker 8 OPC 782 Optional plug adapter cable DETACHING ATTACHING THE TOP PANEL Detach the TOP PANEL with a sharp point such as tweezers for adjustment BE CAREFUL cracking the TOP PANEL...

Страница 15: ...l ch16 Set an SSG as Frequency 156 8 MHz ch 16 Level 3 2 V 97 dBm Modulation 1 kHz Deviation 3 5 kHz Receiving MAIN Top Panel Connect a digital multi meter or oscil loscope to the check point CP1 Conn...

Страница 16: ...ENCY Fr OUTPUT POWER Po H Hi Po M Mid Po L Low Po ML Extra Low FM DEVIATION dE SQUELCH LEVEL nL S METER SL Top Panel Top panel Top panel Top panel Top panel Loosely couple the frequency counter to the...

Страница 17: ...5 6200006980 S COIL ELJRE R10G F L49 6200005740 S COIL ELJRE 47NG F L50 6200006980 S COIL ELJRE R10G F L51 6200007000 S COIL ELJRE 82NG F L52 6200010230 S COIL EXCCL3216U1 L53 6200002330 S COIL LQN 1A...

Страница 18: ...R ERJ3GEYJ 151 V 150 R241 7030003430 S RESISTOR ERJ3GEYJ 821 V 820 R242 7030003430 S RESISTOR ERJ3GEYJ 821 V 820 REF ORDER DESCRIPTION NO NO MAIN UNIT R245 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k R25...

Страница 19: ...A C109 4030006850 S CERAMIC C1608 JB 1H 471K T A 6 3 REF ORDER DESCRIPTION NO NO MAIN UNIT C110 4030006860 S CERAMIC C1608 JB 1H 102K T A C115 4030006860 S CERAMIC C1608 JB 1H 102K T A M21 only C120...

Страница 20: ...ERAMIC C1608 JB 1H 333K T A C368 4030008920 S CERAMIC C1608 JB 1H 473K T A C370 4030007040 S CERAMIC C1608 CH 1H 180J T A C371 4030007050 S CERAMIC C1608 CH 1H 220J T A C372 4030011600 S CERAMIC C1608...

Страница 21: ...056890 2497 A terminal 1 MP35 8930056900 2497 B terminal 1 MP36 8810008640 Screw B0 2 x 4 NI ZU BT 2 MP37 8930056910 2497 C terminal 1 MP38 8810009510 Screw B0 2 x 4 NI ZU BT 1 MP39 8810009510 Screw B...

Страница 22: ...CHASSIS PARTS M MAIN UNIT V VR UNIT NOTE1 Once the following parts are removed a O ring or sealing must be replaced with new one before reattachement Mother part Daughter part for relayted replacemen...

Страница 23: ...8930047830 Leg cushion C 2 CHASSIS REF NO ORDER NO DESCRIPTION R1 7070001130 RESISTOR 120 ERG2SJ R2 7070001140 RESISTOR 150 ERG2SJ R3 7010007100 RESISTOR 1K PSD1 4V J1 6510023070 CONNECTOR HEC2305 01...

Страница 24: ...XP6401 Symbol 5O G S D S D G top view S B E C B E C B E C E1 B1 B2 C1 C2 G1 G2 S D 2SA1588 GR Symbol ZG 2SB1132 Q Symbol BAQ 2SC2714 Y Symbol QY 2SC4081 R Symbol BR 2SC4213 B Symbol AB B E C B C E B...

Страница 25: ...SECTION 9 BOARD LAYOUTS 9 1 CHARGE UNIT BC 150 TOP VIEW BOTTOM VIEW 9 1 DS1 R3 J1 R2 R1 B5787B MP2 MP1...

Страница 26: ...DS241 C48 C44 C49 R56 C51 R55 CP353 Q50 L50 C55 R71 L49 C52 R54 L52 R120 C122 L120 D50 R221 C221 R223 R224 Q222 IC50 R66 C56 C60 R68 C58 R67 R59 C57 R58 R62 Q52 R231 R230 R225 R282 C233 CP250 R235 IC2...

Страница 27: ...R345 R303 R307 R315 B5714E IC360 R341 CP350 C3 R2 C350 C170 C251 S250 C289 C288 C229 C98 R90 C97 L91 C95 L94 D91 CP80 R115 R80 D90 L81 C91 C90 C104 D93 R95 C136 C101 R132 C135 C130 C110 C131 R130 L13...

Страница 28: ...9 4 9 3 VR UNIT TOP VIEW R500 B5715A to the MAIN unit J240 VCC VCC NC VOLIN VOLO GND BOTTOM VIEW...

Страница 29: ...0 TC4W66F ANALOG SW LPF IC200C NJM2902V BEPO AF MUTE SW DE ENPHA MIC AMP IC200B NJM2902V R286 10 k C285 0 1 AFVS Q280 2SC4213 B IVOLM AF AMP AF REG PRE ENPHA R253 2 2 k C254 0 01 Q230 2SB1132 Q Q231 X...

Страница 30: ...4 7 k CP250 C252 0 001 R252 33 k UP S320 S323 CHWX SQL SCAN DOWN 16CH S321 S322 S324 S325 S326 DW HL S327 R201 15 k R203 1 2 M R207 27 k C202 0 1 R206 18 k R377 82 k R378 82 k R379 82 k A0 A1 A2 VSS 8...

Страница 31: ...P C7 0 01 C8 2 P C9 2 P C12 0 001 C5 12 P R6 1 k C6 0 001 R20 100 C20 0 001 C21 9 P C10 0 047 X170 CDBCB450KCAY24 C174 0 001 R171 1 2 k C160 0 0056 R155 1 5 k R156 470 C155 6 P R154 100 k C158 0 001...

Страница 32: ...242 SML 311YTT86 DS243 SML 311YTT86 BATTV LEDL LEDK AFVS 6 5 4 1 2 3 R60 1 k R61 0 15 R62 100 k R63 10 k C61 33 C62 0 001 C63 470 P C67 470 P L55 31 nH MP50 R75 100 R71 100 C70 91 P C71 27 P C81 15 P...

Страница 33: ...k ATIS8 ATIS7 ATIS6 ATIS5 ATIS4 ATIS3 ATIS2 ATIS1 R302 20 k DETM DETM MICM AFOUT R304 20 k SPO SPO J251 BM02B ASRS TF 1 2 GND R306 20 k R308 20 k D350 DA204U Q350 DTC144TU R353 1 k CPU5V R351 1 k R310...

Страница 34: ...11 2 11 2 VR UNIT CP506 1 2 3 4 5 6 CP505 CP504 CP503 CP502 CP501 CP500 GND VOLO VOLIN NC VCC VCC R500 B 5715A VCC HV From BATTERY...

Страница 35: ......

Страница 36: ......

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Icom IC-M2A, Руководство по обслуживанию

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