Icom IC-2300H Service Manual Addendum Download

Page: 39 / 41

10 - 3

• MAIN UNIT (2/2)

Refer to the PARTS LIST for the value and name of component.

D24
JDP2S12CR

C82

0.001

C285

0.1

R188

82K

C124

0.001

C274

R134
27K

C265

R118

220K

C291

18P

C167

C145

0.01

MP3

3251

C209
5P

C197

0.1

R125

C284

0.001

D25
JDP2S12CR

R129
5.6

L23

0.20-0.7-4TR

R98

180

R197
5.6

C187

Q16
LDTC144EE

C148

0.001

R137

100K

R97

2.2K

C156

0.001

C163

0.001

C190

100P

C210

0.001

C129

220

R115

4.7K

C223

68P

R126
10

D17

LRB706F

C243

0.001

C296

12P

Q26
RD04HMS2

R159

47K

R91

120

C221

0.001

R199

39K

R182
100

C230

0.001

C283
330P

C255

0.001

L31
AS080340-15N

D16
VC060318A400RP

R88

120

D30

HVU131-E

C201
120P

R198
10

C305

C298

39P

C208

47P

C195

R187
8.2K

C266

C240

0.001

R112
47K

L32
C2012C

C225

220

C132

0.001

D27

LRB706F

C306

33P

L42
AS080647-56N

R206
470K

C247

0.001

R164

100

C280

0.001

C202
120P

L39
AS080547-47N

C314
120P

C224

82P

R111

47K

R122
560

C271

0.001

C166

0.001

Q31
LDTA144EE

C304

12P

C142
100P

C200

0.001

C178

0.001

C137

0.001

C239

68P

C161

0.001

C182

470P

FI3
FL-442

OUT

GND

C260

C134
27P

R213

2.2K

L22

ELJRF

R196
5.6

C256

0.001

C299

0.001

R100

33K

R89
47

D31

HVU131-E

L41
AS080647-56N

R139

82K

C245

L34

0.30-1.7-8TL

C222

470P

C159

47P

C184

0.001

R167

330K

L27

C2012C-82NG

IC9
LMV324IPW

2
3
4
5
6
7

R201

C204

0.1

C196

0.001

R138

120K

EP4

MPZ2012S331A

R160

100K

L38

ELJFC

R169

220K

R116

470

R212
2.2K

C151

0.001

L25

C2012C-R56J

C282
330P

C128
0.001

C288
0.001

D22

HVC350B-E

C174

0.01

Q24
2SB1132

C237

68P

R161

C175
0.01

C287
5P

L24

0.20-0.7-4TR

R105
2.2K

C160
100P

R152

47K

EP3

MMZ1005Y102CT

R200

39K

R110

2.2K

R177

100K

L37
0.35-1.6-7TL

R114

R136

150K

R108

100

D28

L1SS400

C270
15P

R131

3.3K

C213

C138

0.001

D23

HVC350B-E

D29

HVU131-E

C236

82P

C277

0.001

R102

L26
AS080440-22N

R195
ERJ12-JPW

C278

C267

0.001

C257

0.001

R133

C165

R153
3.9K

C241

15P

C194
0.01

C315
120P

C172

0.001

R135
27K

C258

0.001

R202
0

C276

0.001

C139

0.001

C228

68P

R165

100K

C152

0.001

D34
HVB350BYPTL-E

C171

0.001

R214

100

C191
3.5P

L40
AS080647-56N

C218

68P

D26

L1SS400

C220

0.001

C263

0.001

R147

470K

C307

15P

C250
0.001

R130
5.6

Q32
3SK293

C262

0.001

L33

FHW1210HC

C272

L28

C2012C-82NG

R145

47K

IC8
NJM2835DL1-05

R186
8.2K

L30

C2012C-68NG

R127

C126

220

C130

0.001

Q27
2SC4226

C300

39P

R94

2.2K

C251

0.01

R183

47K

C217

0.001

C292

0.001

C295

C177

0.001

W6
OPC-1131A

OPC-1131A

C281
330P

D32

HVU131-E

C234

68P

C211

0.1

C216

470P

R180
10K

L14

0.45-1.5-5TL

C157

0.001

Q22
RD01MUS1-T113

L15

MLG1608S

C321

C226

0.001

IC6
TA7808F

Q23
2SB1132

Q25
LDTC143ZE

C205

0.001

RDS2T0R0

C199

18P

R96

100

R109

33K

R181
27K

C179

0.001

C303

C293

1.5P

C162
0.1

Q21
2SC4226

C261

L36
AS080547-47N

Q28
3SK293

C189

100P

C143

47P

R106

27K

C198

0.01

D33

LRB706F

R173

18K

C275

0.001

C269

0.1

C323

39P

C254

47P

Q29

RD70HUF2

Q39
LDTC144EE

C229
0.01

Q12
LDTA123YET

Q15
LDTA123YET

R119
18

R124
18

R120

C232

0.1

C302

18P

C279

82P

R178

120K

C249

82P

C242
1.5P

C238

C227
0.5P

L12

ELJRF

R99

27K

R185

12K

R163

R162

560

C219

0.22

C149

0.1

R184

4.7K

L29
LA-630

R150

100K

D19

P6KA18AHE3

R207

120K

R146

PRF18

R144

3.3K

R225

R157

0.006

R176

R170

470K

R166

470K

R179
27K

R175

3.9K

R156
27K

R174

3.9K

R235

D35

L1SS400

L13

ELJRF

C192

0.0015

C193

0.0015

R128

R132
22

T2_APC

T1_ID

PWRON

T2_APC

SQLATT

T8V

SWHV

IDET

RXC

+8V

IFG

C5V

SW5V

T3_REF_V

R5V

TXMUTE

IFAMP

LO IN

PA OUT

APC CTRL

C;13.7V

C;5.0V

C;7.8V

R;2.4V

R;4.1V

R;1.1V

R;1.9V

R;0.3V

R;4.9V

T;0.0V

SQL ATT ON
SQL MAX;4.5V

T;12.9V(Hi)

R;13.7V

13.5V(MidLow)

13.3V(Mid)

13.5V(Low)

T;4.2V

146MHz Hi power

T;7.7V

R;0.0V

R;Rx

T;Tx

C;COMMON

Summary of Contents for IC-2300H

Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 6 VOLTAGE DIAGRAM 8 Feb 2012...

Page 2: ...X 1M B 93 3 8 9 R49 7030005600 S RES ERJ2GEJ 273 X 27K B 32 1 21 7 R50 7030005160 S RES ERJ2GEJ 105 X 1M B 32 9 18 4 R51 7030005530 S RES ERJ2GEJ 100 X 10 B 92 2 10 8 R53 7030007310 S RES ERJ2GEJ 155...

Page 3: ...W M Mounted side T Mounted on the Top side B Mounted on the Bottom side S Surface mount REF PARTS DESCRIPTION M H V NO NO LOCATION MAIN UNIT IC2 1130011760 S IC CD4094BPWR B 44 3 4 4 IC3 1110007720 S...

Page 4: ...S Surface mount REF PARTS DESCRIPTION M H V NO NO LOCATION MAIN UNIT R87 7030005040 S RES ERJ2GEJ 472 X 4 7K T 21 7 39 2 R88 7030005710 S RES ERJ2GEJ 121 X 120 T 23 2 40 8 R89 7030004970 S RES ERJ2GE...

Page 5: ...d on the Top side B Mounted on the Bottom side S Surface mount REF PARTS DESCRIPTION M H V NO NO LOCATION MAIN UNIT C90 4030017460 S CER C1005 JB 1H 102K T B 92 4 7 0 C91 4030016930 S CER C1005 JB 1A...

Page 6: ...T 89 0 37 7 C281 4030018940 S CER GRM31A7U2J331JW31D T 98 1 35 9 C282 4030018940 S CER GRM31A7U2J331JW31D T 96 0 35 9 C283 4030018940 S CER GRM31A7U2J331JW31D T 93 7 35 9 C284 4030017460 S CER C1005 J...

Page 7: ...0 C161 C163 C164 C172 C178 C179 C182 C184 C197 C198 C204 C210 C211 C216 C217 C218 C219 C220 C222 C223 C225 C226 C228 C230 C234 C237 C239 C240 C241 C243 C245 C254 C255 C257 C260 C263 C265 C266 C267 C26...

Page 8: ...2 C10 C11 C15 C19 C22 C23 C24 C27 C29 C31 C33 C34 C35 C36 C37 C39 C40 C41 C43 C45 C46 C51 C52 C53 C54 C56 C58 C60 C61 C62 C64 C66 C69 C78 C80 C81 C82 C85 C86 C87 C88 C89 C90 C92 C93 C94 C95 C96 C99 C1...

Page 9: ...R564 100K R565 100K R566 100K R567 100K R568 100K R569 100K C104 0 001 D32 L1SS400 D33 L1SS400 R134 47K C105 0 1 R57 10K C62 0 1 C92 0 0047 C91 0 0047 C90 0 0047 C97 0 0047 C96 0 0047 C95 0 0047 C94 0...

Page 10: ...S 14811XZ C1 Dec 2011 FM TRANSCEIVER...

Page 11: ...S IC TA31136FNG IC 2300H MAIN UNIT 5 pieces 8820001210 Screw 2438 screw IC 2300H Top cover 10 pieces Addresses are provided on the inside back cover for your convenience ORDERING PARTS 1 Make sure tha...

Page 12: ...ANSMITTER CIRCUITS 4 2 4 3 FREQUENCY SYNTHESIZER 4 3 4 4 VOLTAGE DIAGRAMS 4 3 4 5 PORT ALLOCATIONS 4 4 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 FREQUENCY ADJUSTMENT 5 2 5 3 TRANSMIT ADJ...

Page 13: ...W 1 6 H 4 6 D in Weight approximately 1 1 kg 2 4 lb M TRANSMITTER Modulation system Variable reactance frequency mod Output power approximately Max frequency deviation 5 0 kHz Wide 2 5 kHz Narrow Spur...

Page 14: ...2 1 SECTION 2 INSIDE VIEWS LOGIC UNIT CPU IC1 EEPROM IC5 CPU CLOCK X1 SHIFT REGISTER IC30 ANALOG SWITCH IC6 AF LPF HPF IC3 SHIFT REGISTER IC29 ANALOG SWITCH IC28...

Page 15: ...2 2 MAIN UNIT TOP VIEW DRIVE AMP Q26 D A CONVERTER IC5 DISCRIMINATOR X2 2ND IF FILTER For wide mode FI1 TCXO X1 AF POWER AMP IC7 PRE DRIVE AMP Q22 2ND IF FILTER For narrow mode FI2 APC AMP IC9...

Page 16: ...2 3 VCO MAIN UNIT BOTTOM VIEW POWER AMP Q29 5 V REGULATOR IC8 8 V REGULATOR IC6 IF IC IC3 1ST IF FILYER FI3 PLL IC IC1 SHIF REGISTER IC2 AF POWER AMP IC7...

Page 17: ...then re move the top cover from the chassis W2 MAIN UNIT Hex screws DIAL Front panel W2 MAIN UNIT Screws Top cover Chassis W2 FLAT CABLE MAIN UNIT Front panel Chassis 3 CAREFULLY separate the front pa...

Page 18: ...MAIN UNIT MAIN UNIT MAIN UNIT 4 screws 9 screws MAIN UNIT MAIN UNIT MAIN UNIT Chassis 5 Unsolder 3 points at the antenna connector 6 Remove the total of 13 screws from the MAIN UNIT 7 Remove the MAIN...

Page 19: ...in the 46 35 MHz 1st IF sig nal The 1st IF signal is passed through the 1st IF filter FI3 to remove unwanted signals and then applied to the 1st IF AMP Q27 The amplified 1st IF signal is applied to th...

Page 20: ...91 C52 C53 C308 to filter only the noise components approximate ly 30 kHz signals The noise components are rectified by the noise detector resulting in a DC voltage corresponding to the noise level Wh...

Page 21: ...F LO AMP FIL LOOP PLL IC X3 BPF D12 D13 TX AMPs 1st mixer IC10 Q17 Q14 D10 D11 Q13 D7 D9 REF OSC X1 IC1 IF IC MOD TX VCO RX VCO Q28 15 3MHz IC3 FIN Q1 The output signal from each VCO is passed through...

Page 22: ...I 84 SQLV SQL input I 85 VOLV VOL input I 86 MICUD Up down key on the microphone I 87 SD RSSI voltage from the IF IC MAIN UNIT IC3 I 88 TEMP Temperature sensing voltage I 89 IDET TX power AMP current...

Page 23: ...1 500 mV External speaker Input impedance 4 AC millivoltmeter Measuring range 10 mV to 10 V REQUIRED EQUIPMENT CONNECTION 5 1 PREPARATION For TPE All models except TPE For USA Modulation analyzer to...

Page 24: ...N continued ENTERING THE ADJUSTMENT MODE QUITTING THE ADJUSTMENT MODE KEY ASSIGNMENTS FOR THE ADJUSTMENT MODE 1 Turn OFF the power 2 Connect the JIG cable See page 6 1 to the microphone connector 3 Wh...

Page 25: ...and low 1 Transmitting 1 Connect a modulation analyzer to the antenna connector through an attenuator and then set it to HPF OFF LPF 20 kHz 2 Connect an audio generator to the JIG cable and set it to...

Page 26: ...d before S METER And when RX SENSITIVITY is re adjusted S METER must be re adjusted too Receiving 1 Connect an SSG to the antenna connector and set it to Frequency 145 020 MHz 146 020 MHz Level 7 dB 1...

Page 27: ...7 R50 7030005160 S RES ERJ2GEJ 105 X 1M B 32 9 18 4 R51 7030005530 S RES ERJ2GEJ 100 X 10 B 92 2 10 8 R53 7030007310 S RES ERJ2GEJ 155 X 1 5M B 32 5 19 6 R56 7030003660 S RES ERJ3GEYJ 683 V 68K B 35 1...

Page 28: ...005991 S IC MB15A02PFV1 G BND ERE1 B 56 65 16 5 IC2 1130011760 S IC CD4094BPWR B 44 3 4 4 IC3 1110007720 S IC AA32416A SLVJ B 95 9 11 4 IC4 1130007021 S IC TC7S66FU TE85LF T 57 1 17 6 IC5 1110007550 S...

Page 29: ...ted side T Mounted on the Top side B Mounted on the Bottom side S Surface mount REF PARTS DESCRIPTION M H V NO NO LOCATION MAIN UNIT R108 7030004980 S RES ERJ2GEJ 101 X 100 T 26 4 51 5 R109 7030005060...

Page 30: ...S CER C1005 CH 1H 270J T T 22 0 42 9 C135 4030018900 S CER C1005 JB 0J 474K T B 18 3 4 1 M Mounted side T Mounted on the Top side B Mounted on the Bottom side S Surface mount REF PARTS DESCRIPTION M H...

Page 31: ...4030017390 S CER C1005 CH 1H 180J T T 108 8 26 9 C303 4030011020 S CER GRM31M4C2H1R0CY21L GRM42 6 CK B 103 4 47 8 C304 4030007020 S CER C1608 CH 1H 120J T B 99 4 49 4 C305 4030011050 S CER GRM31M3C2H3...

Page 32: ...8930083840 3251 2 KEY 1 MP4 8930083850 3251 7 KEY 1 MP5 8930084140 3251 LCD FILTER 1 MP6 8810008761 PHBT M2 X 8 NI ZC3 4 MP7 8930083870 3251 LCD PLATE 1 MP8 8610014400 KNOB N 400 1 MP9 8610014410 KNO...

Page 33: ...MP5 L EP9 L DS1 L LOGIC UNIT MP7 L MP6 L x4 MP2 CH MP7 CH x8 SP1 CH J1 CH MAIN UNIT MP4 CH W1 M W6 M W1 M MP6 CH MP1 CH W1 CH MP8 L MP1 L MP11 L MP9 L MP8 CH MP4 L Viewing from the rear MP3 CH MP6 CH...

Page 34: ...63 C164 C172 C178 C179 C182 C184 C197 C198 C204 C210 C211 C216 C217 C218 C219 C220 C222 C223 C225 C226 C228 C230 C234 C237 C239 C240 C241 C243 C245 C254 C255 C257 C260 C263 C265 C266 C267 C269 C271 C2...

Page 35: ...R40 R41 R43 R47 R49 R53 R57 R64 R66 R67 R68 R69 R70 R71 R73 R74 R76 R78 R84 R85 R86 R90 R92 R93 R105 R110 R111 R112 R115 R116 R117 R118 R119 R120 R122 R124 R126 R127 R129 R130 R131 R133 R136 R137 R13...

Page 36: ...P PAHV IDET CPU A D T2_APC D A TXMUTE EXP T8V Q21 SQLATT D A T3_REF_V D A T1_ID D A T2_APC D A R5V T8V R5V SW5V PWRON CPU VCO REG VCO8 T8C EXP Q5 D4 RXC EXP VCO8 VCOR8 VCOT8 SHIFT EXP LOOP SW PLLSW EX...

Page 37: ...K R565 100K R566 100K R567 100K R568 100K R569 100K C104 0 001 D32 L1SS400 D33 L1SS400 R134 47K C105 0 1 R57 10K C62 0 1 C92 0 0047 C91 0 0047 C90 0 0047 C97 0 0047 C96 0 0047 C95 0 0047 C94 0 0047 C6...

Page 38: ...MIXI C69 100P C68 0 001 C49 0 1 IC1 MB15A02PFV1 G BND ERE1 1 OSCIN 2 OSCOUT 3 VP 4 VCC 5 DO 6 GND 7 LD 8 FIN 9 CLOCK 10 DATA 11 LE 12 FC 13 NC 14 FOUT 15 P 16 B D11 HVC375B E R16 10K D2 1SS390 R11 1K...

Page 39: ...0B E D29 HVU131 E C236 82P C277 0 001 R102 68 L26 AS080440 22N R195 ERJ12 JPW C278 4P C267 0 001 C257 0 001 R133 68 C165 10 R153 3 9K C241 15P C194 0 01 C315 120P C172 0 001 R135 27K C258 0 001 R202 0...

Page 40: ...454 7619 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 Unit 1 103 Garden Road Clayton VIC...

Page 41: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14811XZ C1 2011 Icom Inc...

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Icom IC-2300H, Service Manual Addendum

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