Icom IC-2300H Service Manual Addendum Download

Page: 34 / 41

8 - 1

SECTION 8. BOARD

LAYOUTS

The combination of top side and bottom side of this

• MAIN UNIT
(TOP VIEW)

–

• LOGIC UNIT
(TOP VIEW)

[DIAL]

[VOL]

[EXT SP]

[SQL]

[MIC/SP]

CLONE

PWRON

C5V

+8V

EXTSTB

DATA

PLLCK

PLLSTB

UNLK

MODIN

EXTCK

DASTB

GND

SW5V

DETO

LVIN

NOIS

+8V

GND

SW5V

+8V

GND

SW5V

IDET

HVIN

GND

PLLDATA

VOLOUT

INTSP

EXTSP

EXTDATA

GND

C42

C44

C52

C58

C61

C67

C68

C70

C77

C83

C90

C92

C97

D21

D36

DS1

DS3

DS5

DS6

DS7

DS8

DS9

EP2

EP4

EP7

IC25

R11

R30

R40

R61

R62

R83

R86

R88

R89

R91

R92

R94

R97

R101

R135

R555

R556

R557

R564

R565

R570

S10

H10

H15

H20

H25

H30

H35

H40

H45

H50

H55

H60

H65

H70

H75

H80

H85

H90

H95

H100

H105

H110

H115

H120

H125

H130

V10

V15

V20

V25

V30

C12

C13

C14

C16

C17

C18

C21

C26

C30

C42

C49

C50

C55

C57

C59

C63

C65

C67

C68

C70

C71

C74

C75

C76

C77

C79

C83

C91

C97

C98

C116

C120

C126

C127

C128

C129

C134

C137

C138

C139

C142

C145

C148

C149

C150

C152

C159

C160

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

C269

C271

C272

C274

C275

C277

C278

C280

C281

C282

C283

C284

C285

C288

C293

C302

C305

C309

C310

C311

C312

C313

C319

C321

C323

C332

C334

D16

D19

D24

D25

D28

D29

D30

D31

D32

D35

EP3

EP4

FI1

FI2

IC4

IC5

IC7

IC9

L12

L13

L14

L26

L27

L28

L29

L30

L31

L33

L34

L37

L40

Q10

Q11

Q21

Q22

Q26

Q31

Q33

Q34

Q35

Q36

Q37

Q38

R11

R12

R16

R17

R22

R23

R28

R31

R32

R33

R38

R44

R46

R48

R50

R51

R54

R55

R56

R58

R59

R60

R61

R62

R63

R65

R72

R79

R80

R87

R88

R89

R91

R94

R96

R97

R98

R99

R100

R102

R106

R108

R109

R114

R121

R125

R128

R132

R134

R135

R144

R146

R147

R149

R150

R153

R156

R157

R160

R163

R165

R166

R167

R170

R174

R175

R176

R179

R180

R181

R182

R184

R192

R195

R199

R200

R201

R204

R208

R209

R210

R211

R214

R215

R216

R217

R220

R225

R233

R235

B-7530C

H10

H15

H20

H25

H30

H35

H40

H45

H50

H55

H60

H65

H70

H75

H80

H85

H90

H95

H100

H105

H110

H115

H120

V10

V20

V30

V35

V45

V55

V65

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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