Icom IC-F24 Service Manual Download Page 30

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SECTION 11 VOLTAGE DIAGRAM

11 - 1

11-1 MAIN UNIT

C130 0.047

D16

HVC350B

C354 0.001

Voltage line

NOTES :

Common line
TX line
RX line

VCC

C211

4.7

R103

47 k

C159 0.001

EP3

C158 0.1

CP1

C143 0.001

C141 0.001

R100 4.7

R101 470

R92 120

C137 0.01

C203 0.001

D22

HVC370B

C115 12

C134 15

C114 3

C116 0.01

EP1

C139 0.1

C104 0.001

C110 470

R73 100

C105 0.001

C103 2

R75 220

C111 47

C205 5

R71 68

R76 100

C109 0.001

C112 0.001

R78 100

R77 10

C148

C132 0.001

R90 470

C138 0.001

C129 0.5

R86 10

D18

MA368

D21

HVC370B

D17

HVC350B

C133 15

C121 12

C122 10

C119 0.001

C120 470

C113 0.3

C118 0.5

R95

1 k

C127

8 P

5 P

L26

10.5 nH

C126

12 P

R84

6.8 k

C123

18 P

15 P

R82

4.7

R83

6.8 k

R85

6.8 k

R79

6.8 k

RX VCO

TX VCO

R80

560

1 k

C102

5 P

AFONO

RLED

R287

330

R271 1

R260 100

R259 1

R272 1

R274 68

R275 100

R276 100

R277 100

R278 100

R273 1

DS1

CL-165HR/YG

R288

1.5 k

R293

18 k

C350 0.001

R295 47

-167(SKQT)

R294 27

C339 0.1

TLED

4
5
6

R88

560

680

VCC

T5V

VCO5

L25

7.5 nH

C124

9 P

6 P

R96 3.9

2.7

C147

C149 0.47

R107

C208 7

C206 7

C142 0.001

R115 1.2

C173 0.001

C167 0.1

R40 150

C335

C67 0.001

C75 4.7

R38 100

R36 3.3

R48 470

R34 220

C56 22

R29 150

C50 0.001

C48 22

R25 4.7

C44 1

1.5

L11 15 nH 12 nH

C45 12

R23 220

R21 220

C39 10

C43 0.001

C46 0.001

C42 0.001

D10

HVC350B

C60 0.01

R35 100

C59 0.001

R31 100

C57 0.001

C51 0.001

R32 100

C54 0.001

C305 6

C304 6

C53 0.01

C52 47

R30 1

C165 0.01

C162 56

C71 0.1

C70 470

R46 470

C68 220

C66 0.001

C63 47

C65 0.001

R37 2.7

NOIS RSSI

NWC

C164 7

C355 0.

R108 27

C145 47

R109

100 k

C150

R97

1 k

R5V

C163

4 P

C166

3 P

FI2

ALFYM450F=K

R39

C169

0.1

CDBC450CX24

*3 MULTI

L32

18 nH

C146 0.47

R89 10 k

R98 2.2

R106 10

C157 10

C156 0.001

CR-783

REF

T5V

S5V

IC4

MB15A02PFV-1

IC1

TA31136FN

2SC4215 O

3SK299 U73

Q26

UNR9213J

Q18

2SK880 Y

Q17

2SC4116 BL

Q14

2SC4226 R25

2SC5107

Q16

UNR9213J

Q11

2SC5107 O

Q15

XP1214

Q13

2SC4226 R25

R94 150

C155 47

C152 47

C153 47

C154 47

C151 0.1

D24

MA2S111

R93

1 k

C140 0.1

C149 0.001

C202 0.1

R114 150

S5V

LVIN

UNLK

MOD

LVA

T5V

R5V

VCC

S5V

+5V

R151

1.5 k

DET

R157

2.2 k

VCC

+5V

S5V

R221

470

R161

4.7 k

R164 3.9

R159 12

R167 5.6

R162 10

R165 3.9

C271

0.047

C273

0.047

R170

12 k

R163

10 k

C274

0.047

BIAS

C272

0.047

C276

0.047

R237

10 k

R110

47 k

R238

100 k

C160

0.1

C310

0.1

C275

0.022

R166 47

R180 1

3
2

C270

0.047

R160

100

MC1

SKP-4538

HSJ1122-010010

HSJ1456-010320

BM02B-ASRS-TF

ERBFE3R00U

J501

C501

C502

1 2

R224

470

C308 0.001

C311 0.001

C312 47

C314 0.001

C309 0.001

C238 0.001

C237

C236 0.001

C306 0.001

R223 33

C307 0.001

SKHLLF

A010

R138 4.7

C235 0.01

C234 0.001

R136 4.7

C233 0.01

R134 4.7

R133 10

C228

C229 0.001

C230 0.1

C227 0.01

C226 4.7

C221 0.1

C222 0.1

R149 390

C223 0.1

R131

TJ0EP473J

R132 100

C255 0.047

C261 0.1

C258 0.0068

C269 330

C300 270

C286 0.001

C287

R185 120

R184 5.6

C288 0.001

C256 0.039

R150

180 k

C254 0.1

C252 820

R146 100

R145 100

C224 0.1

C225 0.001

CTRL

VIN

OUT

GND NB

C232 0.1

C231 0.01

C265 0.001

R222

82 k

C266 0.1

C264

S5C

R135 10

R5C

R137 10

T5C

SCK

R117

4.7 k

R118

4.7 k

R111

100 k

R113

390 k

CLOCK FIN

GND

OSCIN

OSCOUT

VCC

DATA

FOUT

PLST

R104

330 k

R105 470

REF

C213 0.001

+5V

BAL

VCON
GND

OUT

VCC

Q19

2SC4116 BL

OSCIN

MIXIN

AFOUT

QUAD

IFOUT

RSSI

N-DET

N-REC

GND

IF IC

IF AMP

FILIN

FILOUT

DEC

IFIN

VCC

MIXOUT

OSCOUT

C168

0.1

R44

100 k

C69

470 P

R45

100 k

R43

C188 0.001

C61

100 P

C58

0.001

R5V

MP3

R33

150

FI1

FL-335

46.350 MHz

MIX

C41

5 P

C49

5 P

2 P

C40

0.3 P

RF AMP

R22

10 k

4 6 5 3

C62

82 P

C64

0.01

5 4 3

Q21

2SA1577 Q

Q22

2SA1577 Q

Q23

2SB1132 R

Q24

XP6501 AB

Q28

UNR911HJ

IC6

NJM13403V

Q34

2SK3019

Q29

UNR9210J

CONNECT BOARD

IC6

NJM13403V

Q35

2SK3019

Q25

UNR9113J

IC5

NJM12902V

IC5

NJM12902V

IC7

NJM12904V

IC7

NJM12904V

IC8

M62363FP-650C

IC10

CD4066BPWR

IC6

NJM13403V

IC6

NJM13403V

IC5

NJM12902V

Q27

UNR9213J

Q30

2SA2048TL R

IC12

TA7368F

Q31

XP6501 AB

IC5

NJM12902V

IC5

NJM12902V

IC6

NJM13403V

IC7

NJM12904V

IC9 NJM2870

CP12

+5V

CP11

CP10

BEEPO

DISC

CCS

CIRQ

SCK

OPV1

OPV2

OPT3

OPT2

OPT1

SIGO

PTT[PTT0]

BUSY

MCIN

PTTI

NMI

R280 10 k

CP14

RES

CP15

DAST[OPV3]

R284 100

AXN330C038

MCOT

DET

VCC

KEY

Q32

XP4216

Q33

UNR9113J

IC13

HD6433687A91FP

IC15

BR24L16FV-WE2

UNLK

P62/FTI0C0

P35

P34

P51/WKP1

P50/WKP0

VCC

OSC1

OSC2

VSS

TEST

RES

VCL

AVCC

PB7/AN7

PB6/AN6

P36

PB5/AN5 PB4/AN4 PB0/AN0 PB1/AN1 PB2/AN2 PB3/AN3

P30 P31 P32 P33

P17/IRQ3/TRGV

P16/IRQ2

P15/IRQ1/TMIB1

P14/IRQ0

P72/TXD_2 P71/RXD_2

P37 P52/WKP2 P53/WKP3 P54/WKP4 P55/WKP5/ADTRG P10/TMO

P11/PWM P12 P56/SD

P57/SCL P74/TMRIV P75/TMCIV P76/TMO

P24 P63/FIT

OD0

P61/FTI0B0

P60/FTI0A0

P64/FTI0A1

P65/FTI0B1

P66/FTI0C1

P67/FTI0D1

P85

P86

P87

P20/SCK3

P21/RXD

P22/TXD

P23

NMI

TEMP

ESCL

ESDA

R265

1 k

PLST

PLED

NWC

TLED

OPT3

OPT1

OPT2

PTT

DAST

S5C

T5C

R5C

R261

1 k

NMI

PLSW

P70/SCK3_2

BUSY

DUSE

CENC2

CENC1

CENC0

SENC3

SENC0 SENC1 SENC2

CBI2

CBI3

SCK

29 30 31 32

R264 47

R263 10

R262 100

C349 0.1

BEEP

18 19 20

AFON

CBI0

22 23 24 25

CBI1

VCC

SCL

SDA

VSS

LVIN

RSSI

KEY

SDEC

60 59

REMO

CDEC

TMUT

MMUT

RMUT

CCS

54 53 52 51 50 49

CIRQ

NOIS OPV2 OPV1

CLI

CLO

R257 1

R266 15

R258

100 k

CPU5

CP16

SIGO

C340 0.1

R292 100

R291 100

C348

0.1

VSS

VDD

OUT 2

R252

R256

10 k

RES

C344

15 P

R255

12 k

R254

12 k

CSFT

C342 12

R182 100

R190 330

C243 0.01

R142 470

R141 470

C241 0.1

C242 0.1

C280 0.0047

C281 0.0039

C282 180

R187 1

R179 1

C343 6

R251 12

D28

MA2S077

C341 0.1

C345 0.1

C346 0.1

CR-764

IC14

BD5242G

TEMP

SDEC

CDEC

V+

GND

C253

820 P

C251

0.022

R148

82 k

C257

0.1

R154

22 k

R153

22 k

R152

22 k

R147

39 k

S5V

R144

10 k

C244

0.1

R5V

T5V

C285

0.1

R181

47 k

R175

220 k

R174

100 k

R143

15 k

C279

4.7

R173

120 k

R186

82 k

C289

0.1

R303

4.7 k

VIN1

+5V

VOUT1

VOUT2

VIN2

VDD

CLK

VIN3

VOUT3

VOUT4

VIN4

VIN8

VOUT8

VOUT7

VIN7

GND

RESET

VDAREF

VIN6

VOUT6

VOUT5

VIN5

R177

33 k

6
5

R176

150 k

R178

120

C283 0.47

C347 0.01

V+

GND

V+

GND

R220

100

CP4

PTTI

PTT

DISC

DET

RMUT

MCIN

BEEP

BEEP0

CLO

CLI

CBI0

CBI3

CBI2

CBI1

MCOT

+5V

R225

100

TP70TF5163

15.9F-2775

R226

TP76N00N-15F-A103-2251A

VCC

C313 47

R241

ERJ2GE-JPW

R240

CP13

R242

ERJ2GE-JPW

R195 10

R210 12

C295 0.0027

C297 180

C298 0.0082

C299 68

AFON

C321 0.001

R235 100

C320 470

C319 0.1

R232 3.3

C317

C322 0.047

C318 0.1

R233 3.3

C316 0.1

R231 1

C315 0.001

R236

330 k

R234

150 k

D29

1SS400

D27

DAN222

C326

100

R229

C323

0.047

R230

C325

C324

47 P

RIPPLE

PHASE

PREGND

PWGND

POUT

VIN

R227

10 k

R228

1 k

VCC

AFONO

C296 0.0056

C292 0.1

C291 0.015

C293 820

C290 0.1

R201 47

D26

RB876W TL

MMUT

CP3

CP2

13
12

SIGNAL

R156

470 k

C260

470 P

R155

100 k

C259

R171

150 k

C277

0.1

R191

180 k

R194

22 k

R196

47 k

R197

47 k

R198

47 k

R192

56 k

R193

22 k

R206

220 k
R207

100 k
R208

47 k

R209

22 k

R211

68 k

R212

68 k

R213

68 k

R214

68 k

R215

68 k

6
5

2
3

R168

470

R169

150 k

C278

100 P

R172

270 k

R183

6.8 k

BIAS

S5V

R200

4.7 k

C284

0.1

13
12

S5V

CENC0

CENC1

CENC2

DUSE

SENC0

SENC1

SENC2

SENC3

NWC

BAL SO SCK

AST MOD

REF

RMUT

MMUT

1 I/O1

O/I1

O/I2

I/O2

CONT2

CONT3

VSS

I/O3

O/I3

O/I4

I/O4

CONT4

CONT1

VDD

BIAS

C161

10 P

C209

0.001

R116

680 k

L12 33 nH 39 nH

L13

0.27

L22 22 nH

L21 33 nH

L41 33 nH

L27

1.8 H

L28

1.8

L33

0.82

L35

0.22

L43

1.8 H

L42

1.8 H

T5V

R87

220 k

L23

0.82 H

L38

27 nH

C91 4.7

D31

MA8043

C84 47

R55 4.7

R53 10 120

C357 22

C83 10

MP1

C13 12

C16 30

C11 7

C170 0.001

C171 47

R302 220

R52 220

C8 3.5

C5 4

C3 8

C1 8

R1 2.7

C186 0.5

C185 0.5

R296 2.7

R297 1

R2 1

C74 0.001

RB886G

D30

RB886G

C18 0.001

C178 47

C176 0.001

C97

47 P

C96 0.001

L19 12 nH 10 nH

R62 22

C89 4

R57 47

C180 47

R65 100

C106 47

R68 10

C108 0.01

R70 10

C99 0.001

R67 100

R66 15

L20 18 nh 15 nH

C182 8

R69 4.7

R50 100

R24 10

C36 0.001

R17 47

C31 0.001

R123 1.8

R19 82

R20 1

12 nH 10 nH

C37 0.001

C38 2

1.5

C32 0.001 C333 47

R16 100

R15 47

C25 8P

22 nH 18 nH

C24 24

HVC350B

C27 0.001

R14 10

HVC350B

C22 8

22 nH 18 nH

C21 24

MA2S728

C17 68

MA2S077

L30 33nH

C14 4

C177 4

C73 0.001

R10 1

120

C80 0.0047

TMUT

R4 10

C78 0.001

C72 47

C76 0.01

R3 47 82

C77 0.001

C28 0.001

RSSI

R12 10

C33 0.001

C34 47

R125 220

D25

MA2S111

D15

MA2S077

R61 47

C107 0.001

FI3

NFM60R20T152

C94 470

C183 47

R59 4.7

C88 0.001

R58 33

R56

ERJ3GE-JPW

C81 0.01

C82 0.001

C179 0.001

L17 21 nH

R301

ERJ2GE-JPW

C86

47 P

27 P

RD07MVS1

RD01MUS1

AGC

R124

470 k

2SC3356 R25

C92

12 P

C93

5 P

8 P

2SC5107 O

C98

5 P

10 P

D14

MA2S077

C100

10 P

VCC

T5V

Q10

2SC5107 O

C302

10 P

C303

0.001

C35

0.1

R18

10 k

2SK1829

RF AMP

3SK293

C30 7 P

C23

2.5 P

2 P

C20

7 P

C19

0.001

LQW1608A22NG00

R9 270

APC

T5V

C79 0.22

470 k

150 k

10 k

22 k

100 k

UNR9113J

3
1

IC2

TA75S51F

R13

100 k

R11

100 k

T5V

0.4-0.9-2TL

0.001

1SV307

0.001

14 nH

17.5 nH

2 P

1.5 P

2.5 P

LPF

ANT BOARD

L45

17.5 nH

R51 82

C175 3

2.5

R54 33

C136 0.1

C135 0.001

C356

4.7

L15

0.82

L40

0.82 H

L29 1.8 H

C144 47

CHASSIS

AS-243-A13

(Only F24S, F25S)

T: 6.8

R: 6.6

T: 0.0

R: 7.2

C: 2.2

T: 4.8

R: 0.0

T: 4.8

R: 0.0

C: 5.0

T: 4.9

R: 5.0

T: 0.0

R: 4.9

T: 0.0

R: 3.3

T: 0.0

R: 4.7

T: 0.0

R: 1.1

T: 0.0

R: 4.7

T: 0.0

R: 4.7

T: 0.0

R: 0.8

T: 0.0

R: 4.4

T: 2.4

R: 0.0

T: 0.0

R: 4.9

C: 3.9

C: 4.2

C: 4.7

T: 0.0

R: 4.9

T: 4.9

R: 0.0

C: 4.9

C: 3.6

T: 0.0

R: 1.5

T: 2.8

R: 0.0

T: 0.9

R: 0.0

T: 0.0

R: 4.9

T: 0.0

R: 0.4

T: 0.0

R: 4.7

T: 2.0

R: 0.0

T: 3.9

R: 0.0

C: 4.9

T: 0.0

R: 2.0

C: 2.2

T: 4.8

R: 0.0

T: 2.1

R: 0.0

T: 1.7

R: 0.0

T: 7.1

R: 7.2

T: 3.3

R: 0.0

T: 0.0

R: 1.8

T: 0.0

R: 2.2

C: 4.9

Summary of Contents for IC-F24

Page 1: ...SERVICE MANUAL UHF TRANSCEIVERS...

Page 2: ...ransceiver until the transceiver is disconnected from its power source 3 DO NOT force any of the variable components Turn them slowly and smoothly 4 DO NOT short any circuits or electronic parts An in...

Page 3: ...5 POWER SUPPLY CIRCUITS 4 5 4 6 PORT ALLOCATIONS 4 5 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 CONFIGURATION LISTS FOR ADJUSTMENTS 5 2 5 3 SOFTWARE ADJUSTMENTS 5 3 SECTION 6 PARTS LIST...

Page 4: ...r Middle 40 dB min 50 dB typical for Narrow Limiting charact of modulator 60 100 of maximum deviation Microphone impedance 2 2 k RECEIVER Receive system Double conversion superheterodyne system Interm...

Page 5: ...C13 HD6433687A91FP S5 Regulator Q23 2SB1132 Q24 XP6501 Q25 UNR9113J Crystal filter FI1 FL 335 FM IF IC IC1 TA31136FN IF amplifier Q4 2SC4215 EEPROM IC15 BR24L16FV Power amplifier Q7 RD07MVS1 T5 Regula...

Page 6: ...the earth plate 3 Unsolder 5 points I and remove the shield cover 4 Unscrew 2 screws K and remove the side plate L 5 Unscrew 7 screws M 6 Unsolder 4 points N and take off the main unit in the directi...

Page 7: ...t the 1st mixer cir cuit Q3 to produce a 46 35 MHz 1st IF signal The 1st IF signal is passed through a monolithic filter FI1 in order to obtain selection capability and to pass only the desired sig na...

Page 8: ...one squelch circuit detects tone signals and opens the squelch only when the receiving signal contains matched subaudible tone CTCSS or DTCS When tone squelch is in use and a signal with a mismatched...

Page 9: ...e drive Q5 drive Q8 and power Q7 amplifiers to obtain 4 W max of RF power at 7 2 V DC The amplified signal passes through the low pass filter L4 C11 C13 C16 antenna switch D2 the low pass filter L1 L3...

Page 10: ...he loop filter C130 C138 C146 C147 R95 R97 the DC voltage is applied to the TX RX VCO as the lock voltage If the oscillated signal drifts its phase changes from that of the reference frequency causing...

Page 11: ...to the LED driver Q32 pins 2 and 5 The driver outputs LED control signals to the LEDs DS1 4 6 PORT ALLOCATION 4 6 1 D A CONVERTER IC IC8 CONDITION COLOR RECEIVING 2 5 TONE CODE ORANGE Lighting LOW BA...

Page 12: ...gnals to the D A convertor IC8 pin 6 Input port for the connecting battery type detect signal 38 S5C Outputs power save control signal 39 T5C Outputs T5 regurator control signal Low While transmitting...

Page 13: ...quency range DC 600 MHz Measuring range 0 to 10 kHz Frequency range 0 1 600 MHz Frequency accuracy 1 ppm or better Sensitivity 100 mV or better Input impedance 10 M V DC or better Measuring range 1 10...

Page 14: ...BALANCE CH FREQUENCY MHz SETTING CONDITION US2 EU2 GE2 US3 GE3 1 435 000 485 000 Set TX power to Low1 Set IF bandwidth to Wide Set CTCSS to 151 4Hz 6 CTCSS DTCS DEVIATION CH FREQUENCY MHz SETTING COND...

Page 15: ...C millivoltmeter to the antenna connector Attenuator 20 dB 30 dB RF power meter 0 1 10 W 50 Frequency counter Standard signal generator 0 1 V to 32 mV 127 dBm to 17 dBm DO NOT transmit while an SSG is...

Page 16: ...5 4 PC SCREEN EXAMPLE NOTE The above screen is an example Each transceiver has its own specific values for each setting...

Page 17: ...counter to the antenna connector 470 0000 MHz US2 EU2 GE2 520 0000 MHz US3 GE3 OUTPUT POWER Power Hi 1 Operating CH CH1 CH1 Transmitting Top panel Connect the RF power meter to the antenna connector...

Page 18: ...r and set as Frequency 400 000 MHz US2 EU2 GE2 450 000 MHz US3 GE3 Level 20 dB 87dBm Modulation 1 kHz Deviation 3 5 kHz Receiving Side Panel Connect the SINAD meter with an 8 load to the SP jack throu...

Page 19: ...50 MHz B 62 8 27 7 FI2 2020001840 CER ALFYM450F K FI3 2040001440 S LC NFE31PT152Z1E9L B 81 2 17 8 X1 6070000190 S DCR CDBCB450KCAY24 R0 T 54 4 20 X2 6050011940 S XTL CR 783 15 3 MHz T 36 9 28 9 X3 605...

Page 20: ...T 37 2 40 1 R123 7030008400 S RES ERJ2GEJ 182 X 1 8 k T 75 2 37 7 R124 7030005170 S RES ERJ2GEJ 474 X 470 k T 72 7 40 4 R125 7030005110 S RES ERJ2GEJ 224 X 220 k T 73 2 38 9 R131 7510001730 S TMR ERTJ...

Page 21: ...C27 4030017460 S CER ECJ0EB1E102K T 83 9 35 7 C28 4030017460 S CER ECJ0EB1E102K T 83 9 37 7 C30 4030017590 S CER ECJ0EC1H070C B 79 6 37 8 C31 4030017460 S CER ECJ0EB1E102K T 80 4 37 2 C32 4030017460...

Page 22: ...H070C B 54 2 42 3 C209 4030017460 S CER ECJ0EB1E102K B 54 2 43 3 C211 4030018910 S CER C1608 JB 0J 475K T T 36 1 21 9 C213 4030017460 S CER ECJ0EB1E102K T 31 5 27 8 C221 4030016930 S CER ECJ0EB1A104K...

Page 23: ...S CNR BM02B ASRS TF T 86 6 6 8 J2 6450001680 CNR HSJ1122 010010 J3 6450002250 CNR HSJ1456 010320 J4 6510018430 S CNR AXN330C038P B 11 8 30 6 J5 6510021900 S CNR BM02B ASRS TF T 50 4 11 7 US2S US3S EU...

Page 24: ...963 1 W2 8900009640 OPC 963 F24S F25S only 1 J1 6910015910 Antenna connector 104 1 J2 6910015860 IMSA 6277S 02A G 1 MP1 8010019690 2775 chassis 1 MP2 8210020920 2775 front panel 1 MP8 8210020550 2721...

Page 25: ...ANT Unit MP1 C J1 C MP36 C MP35 C MP17 C MP8 C MP31 C MP13 C MP14 C MP27 C MP26 C MP26 C J2 C J3 M J2 M MC1 M S1 M W1 C MP32 C MP2 C S1 C W2 C W2 C IC F24 F25 only MP4 M MP37 C MP17 C IC F24S F25S IC...

Page 26: ...l K2 RD07MVS1 Symbol RD07MVS1 G S S D G S D UNR9113J Symbol 6C B E C UNR9213J Symbol 8C UNR9210J Symbol 8L B E C B E C B E C XP1214 Symbol 9H B1 E1 B2 C1 C2 XP6501 AB Symbol 5N E1 E2 B2 C1 B1 C2 XP421...

Page 27: ...C96 C92 C107 C43 R23 C21 R125 R12 L22 C102 R24 C34 C33 R19 C31 C35 C173 R11 D30 R297 R52 R302 C171 C74 C170 C27 R14 C28 R13 R61 R123 C50 C42 R67 R124 R68 R66 R65 C182 R9 C80 R7 C72 R134 C231 C232 C23...

Page 28: ...R107 C209 R101 C143 C141 R89 R96 C130 R97 R113 C300 R183 C288 C160 R284 R234 R252 R179 R187 C339 C346 R254 R255 C344 C341 R251 C345 C340 R292 R291 R235 C321 C342 C343 R236 C289 C203 C144 C138 R114 C1...

Page 29: ...RE DRIVE DRIVE AMP PWR AMP LPF 353 65 MHz 473 65 MHz Q3 3SK299 46 35 MHz MIXER XTAL BPF IF AMP FI1 FL 335 Q4 2SC4215 DET LPF LPF LPF FIL SW CSFT EEPROM X3 CR 764 19 6608 MHz SHIFT SW CH SELECT AMP IC7...

Page 30: ...I0D1 P85 P86 P87 P20 SCK3 P21 RXD P22 TXD P23 NMI 33 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 TEMP ESCL ESDA R265 1 k 17 PLST PLED NWC 34 42 TLED 43 OPT3 44 OPT1 45 OPT2 46 PTT 47 DAST 37 S5C 38 T5C 39...

Page 31: ...a Inc 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 Icom Canada A B N 88 006 092 575 290 2...

Page 32: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14116IZ C1 2004 Icom Inc...

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