Icom IC-2300H Service Manual Addendum Download Page 38

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10 - 2

• MAIN UNIT (1/2)

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

C100

0.001

D12

HVD144A

C36

0.001

R44
1.2K

C60

0.001

C12

0.01

C144

470P

100

C19

0.01

R26

22K

Q6
L2SC4081

IC2
CD4094BPWR

STR

CLK

Q1_

Q2_

Q3_

Q4_

GND

Q'S

Q7_

Q6_

Q5_

V+

C10

0.001

R22

18K

IC4

TC7S66FU

C35

470P

R39

3.9K

10K

R78

150

R70

10K

C102

0.1

HVC375B-E

Q9
LDTC144EE

C86

0.5P

R36

C112

0.001

R67

39K

R117

4.7

C3
1

R23

18K

R121

Q14
2SC4226

C59

0.001

R71

820

Q20
2SC4213

C43

C77

0.001

C64

0.001

R13

2.2K

HVC375B-E

R38
1.5K

EP5

BLM15BD102SN1

C33

0.001

C93

C80

0.33

R93

100K

C131

0.001

D3
L1SS400

R60
1.2K

C106
0.001

C56

R49

100K

C45

0.001

X1
CR-875

VCON

GND

OUT

VCC

X2
JTBM450CX24

R51

10K

R57

3.3K

C76

47P

C23

0.001

R46
1K

C13
0.001

R33

18K

C83

220P

R74

390

C57

0.001

R69

39K

R58
100K

R59

33K

R76

100K

C18

56P

R25

4.7K

C95

R10
100K

R31

18K

R29

1.5M

C150

220

C40

0.001

C90
0.001

C170

0.1

R12

680K

R28

18K

MLG1608S

R191

3.9K

C311
0.1

R4
1.5M

10K

C22

0.001

C81
0.01

C21

10P

IC5
R2A20178

VIN2

VDD

CLK

VIN3

VOUT3

VOUT4

VIN4

VIN5

VOUT5

VOUT6

VIN6

VDAREF1

VDAREF2

RESET

GND

VIN7

VOUT7

VOUT8

VIN8

VIN1

VOUT1

VOUT2

C34

0.001

0.1

Q7
L2SC4081

C89
6P

C51

0.1

Q3
2SA1362

C62

0.001

C117

0.001

D5
1SS390

R27
22K

Q2
L2SC4081

R72

470

R64

100K

C65

0.1

C41

0.1

C99

0.001

C15

R34
EXB28V103J

R192

Q10
2SK880

R50
220

C94

47P

C103

0.001

Q5
L2SC4081

C17
6P

C96

36P

R17

18K

C2012C-82NG

R215
100K

C125
0.001

R47
3.3K

C127

0.001

HVL355CM

C14

C61

0.1

C63

0.1

C75

0.001

L11
ELJRF

R14

2.2K

C11

0.1

Q34
LDTC144EE

C2012C-R12G

C105

0.001

C79
1

R209
100K

C313
0.1

C50
0.1

C27

0.001

C78

47P

R68

10K

C9
100P

C31

0.001

R63
470K

C74

2.2

R56

10K

Q4
LDTA144EE

C310
0.1

R73

820

C66
0.1

IC3
AA32416A

OSCI

OSCO

MIXO

VCC

IFIN

DEC

FILO

FILI

AFO

QUAD

IFOUT

RSSI

NDET

NDO

GND

MIXI

C69

100P

C68

0.001

C49
0.1

IC1
MB15A02PFV1-G-BND-ERE1

OSCIN

OSCOUT

VCC

GND

FIN

CLOCK

DATA

FOUT

D11

HVC375B-E

R16

10K

D2
1SS390

R11

C37
47P

C26
3P

R189

Q1
2SC4116

R53
220

C16

0.01

C101
0.75P

R65

10K

ELJRF

C67

0.1

R66
390

R211

100K

MP5
3179

C24
0.001

R48
1.2K

IC7
LA4425A

390K

C55

C92

0.1

C319
220

CP1

R85

100K

C122

12P

D1
1SS390

C88
6P

0.001

C135

0.47

R55

1.2K

C71

0.001

R41
470

Q13
2SC4226

MLG1608S

FI1
LT450FW

C312
0.1

C97

0.01

C123

12P

C309

0.001

C87
0.001

R80

5.6K

R62

15K

C58

0.001

C70

0.033

C46

C85

0.0012

IC10
UPC2709TB

GND

OUT

GND

VCC

C42

C4
1

Q11
LDTC144EE

C120

0.001

D10

HVC375B-E

R86

4.7K

C116

R61
120K

MLG1608S

C39

0.1

C54

0.01

R79
5.6K

L1SS400

FI2
LTW450HT

D13
HVD144A

D6
1SS390

R87

4.7K

C30

0.047

R32

100K

R90
330K

R208

100K

R43

47K

R216
10K

R210
10K

R217

100K

Q38
LDTC114EE

C322

0.1

R218

4.7

C113
0.001

Q17
2SC4228

C164
1000

Q37
LN2306LT

Q36
LN2306LT

Q35
LN2306LT

Q33

LN2306LT

R54

100K

R220

100K

C29

0.1

C91

0.1

L3
MLG1608S

L4
MLG1608S

Q8
LDTA123YET

C104

0.75P

R84

R230

C98

0.1

C334

R231

C141
0.47

C308
270P

C52
330P

C53
330P

R37

47K

R40
22K

R204

10K

R233
15K

C332

R234

27K

C333
0.022

R92
27K

C140

0.0047

T8C

EXTDATA

PLLSW

TXMUTE

NWC

LVIN

WNC

SHIFT

VCOV

PLLSW

UNLK

PLLSTB

PLLDATA

PLLCK

DETO

PWRON

REFMOD
FC

MOD

DETIN

CLONE

LVIN

IDET

CLONE

NOIS

MODIN

EXTCK

NWC

PLLSTB

DATA

EXTCK

DASTB

UNLK

PLLCK

EXTSTB

SHIFT

T8C

SPMUTE

WNC

RXC

SQLIN

NWC

VOLOUT

MOD

REFMOD

T1_ID

T2_APC

T3_REF_V

SQLIN

SQLATT

DETIN

DATA

PLLDATA

EXTDATA

INT_SP

T8V

EXT_SP

VOLOUT

SW5V

MODIN

CLONE

PWRON

C5V

+8V

EXTSTB

DATA

PLLCK

PLLSTB

UNLK

MODIN

EXTCK

DASTB

GND

SW5V

DETO

LVIN

NOIS

+8V

GND

SW5V

+8V

GND

SW5V

PLL

RX VCO

REF 15.3MHz

*3 MULTI

IDET

HVIN

GND

PLLDATA

VOLOUT

INTSP
EXTSP

EXTDATA

GND

C;6.8V

PA_ON;13.6V
PA_OFF;0.0V

PA_ON;0.0V
PA_OFF;13.6V

T;0.0V

R;6.7V

T;6.3V

R;0.0V

C;4.8V

FM;0.0V
FM-N;4.4V

FM-N;0.0V

FM;4.8V

R;0.0V

T;7.7V

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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