Icom IC-208H Service Manual Download

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0.01

C274

UNR9113J

Q42

5VS_W

HV_I

5VS_W

HV_I

5VS_W

HV_I

0.001

C234

TX_MUTE

UNR9113J

Q45

0.001

C581

100

R616

W527

TUNE_8

100p

C70

C63

120k

R75

MOD

0.001

C650

0.001

C626

0.001

C630

0.001

C625

0.1

C99

0.01

C103

22k

R30

100

R79

0.22

L67

(4)

UNIT

MAIN

(2)

UNIT

MAIN

5VS_W

BUS LINE2

BUS LINE3

BUS LINE1

HV_I

PCON_V

180k

R254

330k

R250

0.1

C283

0.001

C278

330k

R628

0.001

C300

33k

R255

0.001

C293

0.001

C286

2.2k

R253

10k

R252

220k

R256

R258

0.047

C297

PCON_U

180k

R234

330k

R235

0.001

C264

0.1

C272

330k

R629

33k

R226

0.001

C245

0.047

C237

220k

R212

R211

0.001

C258

2.2k

R233

10k

R225

NJM3404AV

IC15

+ -

100

R615

150

R611

0.001

C580

2.2

C577

DAN222

D531

1.8k

R612

W502

EP524

0.001

C638

0.001

C639

0.001

C640

EP525

0.1

C138

18k

R94

C72

100

R13

C47

0.1

C43

15k

R33

15k

R23

5.6k

R24

C27

100k

R39

100k

R38

100k

R15

100k

R14

MODIN

15k

0.047

0.0056

0.068

C19

470

R25

180p

C32

150k

R40

220k

R41

0.0039

C44

220k

R88

DATAMOD

180k

R81

1.5k

R68

0.033

C64

68k

R58

22k

R59

390p

C59

NJM12902V

IC3

+ -

C76

DTCS

DTCS_SEL

UNR9213J

0.033

C10

0.068

C18

3.9k

R11

39k

R12

220k

R45

0.01

C39

C30

39k

R32

10k

R31

0.1

C54

VRSTB

5VS_W

VIN8

VOUT8
VOUT7

VIN7
GND

RESET

VDAREF

VIN6

VOUT6
VOUT5

VIN5

VIN4

VOUT4

VOUT3

VIN3

CLK

VDD

VIN2

VOUT2

VOUT1

VIN1

24
23
22
21
20
19
18
17
16
15
14
13

M62363FP-650C

IC4

TUNE_U

PCON_U

PCON_V

BSHIFT

ATT

TUNE_V3

TUNE_V2

TUNE_V1

REF_CON

TUNE_8

DA_STB

DA_CK

DA_DATA

REF_V

0.001

C665

0.001

C664

M62352GP

IC11

GND

AO2
AO1

CLK

AO12
AO11

VCC

VDD

AO10

AO9

AO8

AO7

AO6

AO5

AO4

AO3

VSS

20
19
18
17
16
15
14
13
12
11

0.033

C45

R5CTRL

330

R119

UNR9114J

Q24

WN_SEL

UNR911NJ

Q25

47p

C632

22k

R129

0.01

C115

UNR9213J

Q21

3.3k

R123

0.1

C110

3.3k

R122

CDB450C24

0.047

C104

0.033

C100

RSSI

SQL

DET_MUTE

DETS

82p

C98

0.1

C112

C109

0.22

C644

R120

0.1

C117

1.5k

R642

TC4W53FU

IC10

CFWM450E

FI2

CFWS450HT

FI1

TC4W53FU

IC9

MAIN UNIT (3)

0.001

C91

0.001

C87

470

R111

TA31136FN

IC8

0.1

C95

OSCIN

OSCOUT

MIXOUT

VCC

IFIN

DEC

FILOUT

FILIN

MIXIN

GND

N-REC

N-DET

RSSI

IFOUT

QUAD

AFOUT

0.22

C645

10p

C90

270k

R110

220p

C83

220p

C82

2.2k

R101

10k

R95

150

R96

TN10-3K222J

R647

3.9k

R648

33k

R92

470p

C71

0.1

C60

330k

R100

4.7

C86

0.001

C94

0.47

C96

470

R114

0.01

C92

180k

R109

XP6501

Q16

R108

0.1

C77

TC4W53FU

IC5

0.001

C78

180k

R91

22k

R86

470k

R87

0.01

C66

1.5k

R73

XP6501

Q13

2SJ144

Q14

2.2M

R93

2.2M

R97

0.001

C659

0.001

C69

2.2M

R80

12k

R74

AFO

330

R46

4.7k

R44

0.01

C61

22k

R67

39k

R57

0.015

C57

0.033

C49

0.001

C53

680k

R50

3.3k

R37

XP6501

0.015

C31

0.0018

C21

47k

R22

0.0039

C11

1.5M

W508

W507

0.001

WXALT

10k

R52

100k

R53

0.01

C52

0.001

C46

68k

R56

68k

R51

68k

R49

0.0068

C51

0.0018

C42

0.022

C38

0.0022

C26

100k

R29

10k

R43

DTCS_IN

15k

R42

10k

R28

68k

1.2k

R10

XP4601

100k

2.2M

0.01

C56

EP526

C58

12p

C55

0.82

C48

2SC4215

15p

C50

0.001

C635

R48

0.82

0.001

C40

270k

R47

120p

C634

120p

C633

18p

C41

100

R36

0.82

L66

47n

0.001

C20

0.022

C25

100

47k

2SC4116

470

R21

BUS LINE2

5VS

5VS_W

BUS LINE1

HV_I

SQL OPEN: 0V

SQL CLOSE: 4.7V

TX: 0V

RX: 1.0V(FM)

RX: 1.6V(AM)

11 - 4

Summary of Contents for IC-208H

Page 1: ...VHF UHF FM TRANSCEIVER i208H SERVICE MANUAL ...

Page 2: ...KIC 208H Bottom cover 10 pieces Addresses are provided on the inside back cover for your convenience REPAIR NOTES 1 Make sure a problem is internal before disassembling the transceiver 2 DO NOT open the transceiver 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 A...

Page 3: ...UITS 4 8 4 5 POWER SUPPLY CIRCUITS 4 8 4 6 PORT ALLOCATIONS 4 9 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 SOFTWARE ADJUSTMENTS 5 3 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 CONTROL UNIT 9 1 9 2 MAIN UNIT 9 3 9 3 VCO BOARD 9 5 SECTION 10 BLOCK DIAGRAM SECTION 11 VOLTAGE DIAGRAMS 11 1 CONTROL UNIT 11...

Page 4: ...le Modulation system Variable reactance frequency Maximum frequency deviation 5 0 kHz Spurious emissions Less than 60 dB Microphone connector 8 pin modular jack 600 Ω M RECEIVER Receive system Double conversion superheterodyne Intermediate frequency 1st IF 46 05 MHz 2nd IF 450 kHz Sensitivity Less than 0 18 µV at 12 dB SINAD Squelch sensitivity Less than 0 13 µV at threshold Selectivity More than ...

Page 5: ... 1st mixcer VHF band Q32 3SK299 1st mixcer 400M 800MHz band IC12 µPC2757TB D A converter IC11 M62352GP Ceramic band pass filter FI1 CFWS450HT FI2 CFWM450E MAIN CPU IC505 HD6432143SA70FA USA HD6432143SA69FA except USA VCO board EEP ROM IC501 HN58X24128FPI AF amplifier IC510 LA4425A 1st mixer VHF band Q32 3SK299 1st mixer 400M 800MHz band IC12 µPC2757TB D A converter IC11 M62352GP Ceramic bandpass f...

Page 6: ...62 8V regulator Q1 2SC4116 Q3 2SA1734 D5 MA8068 MAIN UNIT BOTTOM VIEW 8V regurator IC504 TA7808F 5V regurator IC503 TA7805F D A converter IC4 M62363FP 650C IF IC IC8 TA31136FN APC controller IC15 NJM3404AV 1st mixer UHF band Q35 3SK299 PA module UHF band IC14 S AU82L PA module VHF band IC13 S AV32 8V regulator IC504 TA7808F 5V regulator IC503 TA7805F D A converter IC4 M62363FP 650C FM IF IC IC8 TA...

Page 7: ...A and remove the cover Disconnect the cable B from J505 and remove the speaker Remove 2 sheets c Unscrew 8 screws G and remove the MAIN unit J505 J505 B C A A Unsolder 3 points D Disconnect the cable E from J1 Unscrew 3 screws F and remove the cover J1 J1 F D E G MAIN UNIT 3 1 ...

Page 8: ... Removing the CONTROL unit Remove 2 knobs A Unscrew 2 screws C and remove the LCD plate Remove the CONTROL unit A Unscrew 2 screws B and remove the cover B C CONTROL UNIT 3 2 ...

Page 9: ...r VHF is D49 and D50 for UHF is D46 and D48 for SHF is D39 The D A converter outputs ATT signal IC11 pin 6 and is then applied to the attenuator controller circuit Q44 The circuit output attenuator control signals to each attenuator circuits The attenuated signals are applied to the each RF circuits 4 1 4 RF CIRCUITS MAIN UNIT The RF circuit amplifies signals within the range of frequen cy coverag...

Page 10: ...al The 1st IF signal passes through the RX switching circuit D9 and are then applied to the 1st IF cir cuit ABOVE 230 MHz EXCEPT 430 MHz 440 MHz 1ST MIXER CIRCUIT The signals from the above 230 MHz and above 800 MHz RF circuit are mixed with the 1st LO signal at the 1st mixer circuit IC12 to produce a 46 05 MHz 1st IF signal The 1st IF signal passes through the RX switching circuit D10 and are the...

Page 11: ...yze the DTCS signal When the signal passes through the other low pass filter C52 C53 R46 R52 the filtered signal is applied to the MAIN CPU IC505 pin 42 via the WXALT signal to detect WX alert signal A part of signals from the AF mute circuit Q14 is applied to the 6 pins data jack as data signal via the DATAOUT sig nal 4 1 9 SQUELCH CIRCUIT MAIN UNIT NOISE SQUELCH A noise squelch circuit cuts out ...

Page 12: ...ntroller D1 X1 and are then applied to the VHF or UHF modula tion circuits separately DATA SIGNALS The data signals from the 6 pins jack J504 pin 1 pass through the limiter circuit D524 to limit the level When setting to 9600 bps mode The signals pass through the analog switch IC509 pins 4 3 and then pass through the switch again pins 9 8 The signals are amplified at the buffer amplifier IC3c pins...

Page 13: ...rd signals and reflection signals at D27 and D33 respectively The combined voltage is at a minimum level when the antenna impedance is matched at 50 Ω and is increased when it is mismatched The detected voltage is applied to the APC amplifier IC15 pin 6 and compared with a reference voltage which is sup plied from the CPU IC505 as a PCON_V D A control sig nal When antenna impedance is mismatched t...

Page 14: ...U IC505 as a PCON_U D A control sig nal When antenna impedance is mismatched the detected volt age exceeds the reference voltage The output voltage of the APC amplifier IC15 pin 1 controls the bias voltage of the power module IC14 to reduce the output power via the APC controller IC15 D531 4 3 PLL CIRCUITS 4 3 1 GENERAL MAIN UNIT A PLL circuit provides stable oscillation of the transmit fre quency...

Page 15: ...lified at the buffer amplifier Q50 and is then fed back to the PLL IC MAIN unit IC1 pin 8 as the comparison sig nal WHILE RECEIVING UHF BAND OR 800 MHz BAND The oscillated signal at the U VCO circuit is amplified at the buffer amplifiers Q102 Q103 and is then applied to the VCO switching circuit for UHF band D104 for 800 MHz D105 While receiving UHF band the signal passes through the attenuator C1...

Page 16: ...ller Q502 Common 8 V converted from the 8 V line by the 8 regulator circuit Q4 Common 8 V line which is selected by the SEL_SW circuit Q6 Q8 The voltage is applied to the VHF VCO VCO board Q3 D1 D2 and buffer amplifiers VCO board Q4 Q5 Common 8 V line which is selected by the SEL_SW circuit Q6 Q8 The voltage is applied to the UHF VCO VCO board Q101 D100 D101 and buffer amplifiers VCO board Q102 Q1...

Page 17: ... R5CTRL MAIN unit IC505 Continued Pin Port Description number name 16 17 20 21 22 24 25 26 27 28 31 38 40 41 42 44 45 47 48 49 Outputs the transmit mute signal High While transmit is muting Input port for the microphone PTT sig nal High While PTT switch is pushed Outputs the UHF transmitting power supply circuit control signal High While transmitting 400 479 MHz Outputs the VHF transmitting power ...

Page 18: ...ference frequency con trol signal Outputs the excess current detecting signal TUNE_V1 V3 TUNE_U ATT BSHIFT PCON_V PCON_U TUNE_8 REF_CON REF_V Pin Port Description number name 4 6 2 D A CONVERTER IC PORT ALLOCATIONS MAIN UNIT IC11 1 3 4 5 6 7 8 24 25 30 31 39 42 43 78 83 86 88 89 Input port for the BAND key Low The BAND key is pushed Outputs the umber LED control signal High The LED lights ON Input...

Page 19: ...STMENT MODE q Turn the transceiver s power OFF w Connect the JIG cable to the MIC jack e Push and hold the SET and BAND keys and then turn power ON NOTE Exiting from the adjustment mode when the transciever s power is OFF OPERATING ON THE ADJUSTMENT MODE Change the adjustment value DIAL Verifying the adjustment value M CALL key Forward the adjustment item SET LOCK key Go back the adjustment item S...

Page 20: ... MP LP POH Starting item POM POL POH POM POL PL PV DE DT Tr SL SqW SqN SqW SqN rE LP MP HP LP MP Not adjust items DISPLAY Fr rF POH POM POL PL PV DE DT Tr SL SqW SqN Fr1 Fr2 Fr3 Fr4 Fr5 Fr6 Fr7 Fr8 ADJUSTMENT ITEMS Reference frequency Reference voltage VHF UHF output power Transmit minimum voltage Protect voltage Frequency deviation DTCS wave form Tracking S Meter Squelch level Wide Squelch level ...

Page 21: ...ting Operating frequency 445 0 MHz Transmitting Operating frequency 450 0 MHz Transmitting Operating frequency 146 0 MHz High Middle Low swtich High Connect an RF power meter to the antenna connector Transmitting Operating frequency 445 0 MHz Transmitting Turn the DIAL to set to 445 0000 MHz Push the BAND key Push the BAND key Turn the DIAL to set the VHF high power to 55 W Push the BAND key Turn ...

Page 22: ... dBm Modulation 1 kHz Deviation 3 5 kHz Receiving Operating frequency 146 1 MHz Receiving Operating frequency 160 1 MHz Receiving Operating frequency 173 9 MHz Receiving Operating frequency 230 1 MHz Connect an SSG to the antenna connector and set as Level 1 µV 107 dBm Modulation 1 kHz Deviation 3 5 kHz Receiving Operating frequency 260 1 MHz Receiving Operating frequency 380 1 MHz Receiving Opera...

Page 23: ...ating frequency 905 1 MHz Receiving Operating frequency 999 9 MHz Receiving Operating frequency 146 1 MHz Connect an SSG to the antenna connector and set as Level 1 µV 107 dBm Modulation 1 kHz Deviation 3 5 kHz Receiving Operating frequency 445 1 MHz Receiving Operating frequency 435 9 MHz Receiving Operating frequency 810 1 MHz Set an SSG as Level 5 6 µV 92 dBm Modulation 1 kHz Deviation 3 5 kHz ...

Page 24: ...Receiving Operating frequency 435 1 MHz Set an SSG as Level 0 1 µV 127 dBm Receiving Operating frequency 810 1 MHz Set an SSG as Level 0 25 µV 119 dBm Receiving Operating frequency 146 0 MHz Receiving Operating frequency 146 0 MHz Receiving Operating frequency 146 0 MHz Receiving Operating frequency 146 0 MHz Receiving Operating frequency 146 0 MHz Receiving Operating frequency 146 0 MHz Receiving...

Page 25: ... 0 MHz Receiving Operating frequency 146 0 MHz Receiving Operating frequency 445 0 MHz Receiving Turn the DIAL to set to F9 on the display Push the BAND key Turn the DIAL to set to 07 on the display Push the BAND key Turn the DIAL to set to 00 on the display P0ush the BAND key Turn the DIAL to set to 00 on the display Push the BAND key Turn the DIAL to set to 00 on the display Push the BAND key Tu...

Page 26: ...0007090 S CERAMIC C1608 CH 1H 470J T B C31 4030007090 S CERAMIC C1608 CH 1H 470J T B C34 4030006900 S CERAMIC C1608 JB 1H 103K T B C35 4030011600 S CERAMIC C1608 JB 1E 104K T B C36 4030011600 S CERAMIC C1608 JB 1E 104K T B C37 4030011600 S CERAMIC C1608 JB 1E 104K T B C46 4510007310 S ELECTROLYTIC 16 CV 10 BS B C49 4030006900 S CERAMIC C1608 JB 1H 103K T B C50 4030006860 S CERAMIC C1608 JB 1H 102K...

Page 27: ...SISTOR ERJ3GEYJ 390 V 39 Ω T R123 7030003730 S RESISTOR ERJ3GEYJ 274 V 270 kΩ T R124 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kΩ T R125 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 Ω USA only T 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kΩ except USA T R126 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kΩ T R127 7030003240 S RESISTOR ERJ3GEYJ 220 V 22 Ω USA only T R128 7030003240 S RESISTOR ERJ3GEYJ 220 V 22 ...

Page 28: ...UN9213J TX B Q21 1590003290 S TRANSISTOR UN9213J TX T Q22 1510000580 S TRANSISTOR 2SA1362 GR TE85R T Q23 1510000580 S TRANSISTOR 2SA1362 GR TE85R B Q24 1590003240 S TRANSISTOR UN9114J TX B Q25 1590003260 S TRANSISTOR UN911NJ TX B Q26 1590003240 S TRANSISTOR UN9114J TX B Q27 1590003240 S TRANSISTOR UN9114J TX B Q28 1590003240 S TRANSISTOR UN9114J TX B Q29 1590003240 S TRANSISTOR UN9114J TX B Q30 15...

Page 29: ... 56N T L30 6200010160 S COIL AS080440 22N T L31 6200005590 S COIL ELJRE 2N7Z F T L32 6200009930 S COIL C2012C 68NG T L33 6200010540 S COIL C2012C 47NG T L34 6200010630 S COIL LQW18AN8N2D00D T L35 6200010130 S COIL LQW18AN6N8C00 T L36 6200006980 S COIL ELJRE R10G F T L37 6200010130 S COIL LQW18AN6N8C00 T L38 6200010130 S COIL LQW18AN6N8C00 T L39 6200005590 S COIL ELJRE 2N7Z F T L40 6200010330 S COI...

Page 30: ...YJ 103 V 10 kΩ B S Surface mount R122 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 kΩ B R123 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 kΩ T R124 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ T R125 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ B R126 7030003370 S RESISTOR ERJ3GEYJ 271 V 270 Ω B R127 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 kΩ T R128 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 kΩ B R129 7030003600 S...

Page 31: ...534 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 kΩ B R535 7510001470 S THERMISTOR NTCG20 4AG 473JT T R536 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 kΩ T S Surface mount R537 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kΩ T R538 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 kΩ T R539 7030003660 S RESISTOR ERJ3GEYJ 683 V 68 kΩ T R540 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kΩ T R541 7030003320 S RESISTOR ERJ3GE...

Page 32: ...2K T T S Surface mount C54 4030011600 S CERAMIC C1608 JB 1E 104K T B C55 4030007020 S CERAMIC C1608 CH 1H 120J T B C56 4030006940 S CERAMIC C1608 CH 1H 030C T B C57 4030008860 S CERAMIC C1608 JB 1H 153K T T C58 4030009510 S CERAMIC C1608 CH 1H 010B T B C59 4030011330 S CERAMIC C1608 CH 1H 391J T B C60 4030011600 S CERAMIC C1608 JB 1E 104K T B C61 4030006900 S CERAMIC C1608 JB 1H 103K T T C63 45100...

Page 33: ...CY21L GRM42 6 CK B S Surface mount C233 4030011140 S CERAMIC GRM31M2C2H120JV01L GRM42 6 CH B C234 4030006860 S CERAMIC C1608 JB 1H 102K T B C235 4030006860 S CERAMIC C1608 JB 1H 102K T T C236 4030006860 S CERAMIC C1608 JB 1H 102K T T C237 4030008920 S CERAMIC C1608 JB 1H 473K T T C238 4030006860 S CERAMIC C1608 JB 1H 102K T T C240 4030006860 S CERAMIC C1608 JB 1H 102K T B C241 4030006860 S CERAMIC...

Page 34: ... C1608 JB 1H 102K T T C599 4030006950 S CERAMIC C1608 CH 1H 040C T T C600 4030006860 S CERAMIC C1608 JB 1H 102K T T C601 4030006860 S CERAMIC C1608 JB 1H 102K T T S Surface mount C602 4030006860 S CERAMIC C1608 JB 1H 102K T T C603 4030006860 S CERAMIC C1608 JB 1H 102K T B C604 4030006860 S CERAMIC C1608 JB 1H 102K T B C605 4030006860 S CERAMIC C1608 JB 1H 102K T B C606 4030007130 S CERAMIC C1608 C...

Page 35: ...R ERJ3GE JPW V B W543 7030003860 S JUMPER ERJ3GE JPW V B W544 7030003860 S JUMPER ERJ3GE JPW V T W545 7030000010 S JUMPER MCR10EZHJ JPW 000 T W546 7030000010 S JUMPER MCR10EZHJ JPW 000 T W548 7030003860 S JUMPER ERJ3GE JPW V B EP1 6910012350 S BEAD MMZ1608Y 102BT T EP2 6910012350 S BEAD MMZ1608Y 102BT T EP10 6910000660 BEAD FSRH082149RL000B FSOH082RL T EP11 6910000660 BEAD FSRH082149RL000B FSOH082...

Page 36: ...2633 window plate 1 MP16 8930060050 2633 window sheet 1 MP17 8930060060 2633 D filter 1 MP18 8930060070 2633 jog sheet 1 MP19 8930060080 2633 A sheet 1 MP20 8930060090 2633 key sponge 1 MP21 8930059780 2633 LCD plate 1 MP22 8930006440 Spring F 1 MP25 8810009220 Screw PH B0 M2 8 ZK 2 MP26 8810008990 Screw PH BT M2 10 ZK 2 CONTROL UNIT ORDER NO REF NO DESCRIPTION QTY J502 6510023110 Connector 3008L ...

Page 37: ... DS1 CT MP20 CT MP9 CT MP1 CT MP15 CT MP16 CT MP3 CT MP19 CT MP10 CT MP14 CT MP13 CT MP11 CT MP12 CT MP4 CT MP8 CT MP22 CT Unit abbreviations C CHASSIS PART M MAIN UNIT CT CONTROL UNIT V VCO UNIT W501 M J506 M EP10 M EP11 M J504 M MP8 C MP4 M MP9 M MP7 M MP8 C MP7 C MP3 M MP8 C MP7 C MP2 M MP6 M J503 M J502 M MP7 C MP5 C MP13 C MP7 C MP8 C MP8 C MP2 V MP3 V MP1 V MP24 C MP9 C SP1 C MP14 C MP2 C WS...

Page 38: ...bol SG Symbol ZG Symbol LB Symbol None Symbol QK Symbol RK Symbol BR Symbol LL Symbol LG Symbol AB Symbol QY Symbol R25 Symbol LY3 Symbol 24 Symbol 44 Symbol MCY Symbol C8 Symbol VH Symbol VG Symbol U73 Symbol G9 Symbol 6C Symbol 6D Symbol 6E Symbol EW Symbol 8L Symbol 8C Symbol EX Symbol 9L Symbol 5C Symbol 5N A C A C A C A C A C C A1 A2 green A C A C A C A C A C A C A C A C A C A C A C A C A C A...

Page 39: ...SECTION 9 BOARD LAYOUTS 9 1 9 1 CONTROL UNIT TOP VIEW SET LOCK S MW MW V MHz SCAN M CALL PRIO TONE T SCAN LOW DUP MONI DTMF SQL PWR VOL BAND ...

Page 40: ... BOTTOM VIEW CONTROL UNIT 1 100 76 75 25 26 50 51 HV 1 4 to MAIN unit J503 J3 TDATA RDATA GND 9 2 ...

Page 41: ... SP 1 2 to Speaker J505 GND AFOUT 5 6 3 1 2 4 J504 PSQL PTTP DATAIN GND DATAOUT DATA SP 7 1 to Microphone 8 2 J502 GND MICE EXTMIC 8V MICIN MIC PTT MICU D 8V to VCO board J1 U VCO8 GND MOD MMUTE GND U LV SHIFT V VCO8 V LV PLLOUT to VCO board J2 GND 800R5 UR5 GND U RXLO U TXLO GND V RXLD V TXLO CTHV 1 4 to CONTROL unit J3 J503 TXDATA RDATA GND 9 2 MAIN UNIT TOP VIEW 9 3 ...

Page 42: ...1 12 24 13 1 7 14 8 1 8 16 9 1 4 8 5 1 4 8 5 OUT VDD IC13 VGG IN OUT IC14 VDD VGG IN BOTTOM VIEW MAIN UNIT 9 4 ...

Page 43: ...9 3 VCO BOARD TOP VIEW Mounted R127 in place of W1 USA E208 only 9 5 ...

Page 44: ...EW VCO BOARD Mounted R128 in place of W2 USA E208 only V_LV 1 to MAIN unit 10 J1 V_VCO8 VCO_SHIFT U_LV GND MMUTE MOD GND U_VCO8 8V V_TXLO 1 10 to MAIN unit J2 V_RXLO GND U_TXLO U_RXLO GND UR5 800R5 GND PLLOUT 9 6 ...

Page 45: ... 719 15 2MHz Q2 2SC4116 Q7 2SC4215 Q1 UNR9213J Q100 UNR9213J Q102 2SC5231 Q103 2SC5231 Q101 2SC5231 D101 D102 HVC375B D100 1SV286 Q104 2SC5231 Q105 UNR9213J D106 1SV308 D107 MA2S077 D103 1SV308 D104 MA2S077 D105 MA2S077 D50 MA2S077 D51 MA2S077 Q50 2SC4403 Q5 2SC5231 D5 1SV308 D6 MA2S077 8V LPF AF MUTE LPF LPF AGC AM DET AM5 AM FM SEL CERAMIC BPF CERAMIC BPF WIDE NARROW SELECTOR X2 CDB450C24 FI2 CF...

Page 46: ...81 SEG26 69 P82 SEG27 70 P83 SEG28 71 P84 SEG29 72 P85 SEG30 73 P86 SEG31 74 P87 SEG32 75 P90 SEG33 76 P91 SEG34 77 P92 SEG35 78 P93 SEG36 79 P94 SEG37 M 80 P95 SEG38 DO 81 P96 SEG39 CL2 82 P97 SEG40 CL1 83 P40 SCK32 84 P41 RXD32 85 P42 TXD32 86 P43 IRQ0 87 AVCC 88 PB0 AN0 89 PB1 AN1 90 PB2 AN2 91 PB3 AN3 92 PB4 AN4 93 PB5 AN5 94 PB6 AN6 95 PB7 AN7 96 PC0 AN8 97 PC1 AN9 98 PC2 AN10 99 PC3 AN11 100...

Page 47: ...0 001 MIC_SEL R510 1k C512 0 001 C510 0 001 C506 47p EP508 EP507 EP506 EP505 EP504 EP503 EP502 EP501 MIC_SEL 98_DATA P_MOD_MUTE P_PTT R541 100 R544 100 100 R546 0 01 C612 0 001 C589 DTMF DTCS CLONE_IN CLONE_OUT FAN_CT P_SQL 100 R559 WXALT TEMP RSSI DTCS_IN SQL R553 100 R551 100 R558 100 R557 100 W548 MICIN GND MIC MICE PTT EXTMIC MICU D 8V J502 to Microphone J504 MAIN UNIT 1 2 2M R606 10 C575 DATA...

Page 48: ...PLLSTB2 PLLDATA PLLCK PLLDATA PLLCK UNLK 1M R624 100 R78 100 R76 27k R62 27k R65 0 001 C585 10 C85 3 9k R106 330 R107 0 001 C648 4 7k R70 TC4S66F IC7 2 5 DA221 D5 4 0 047 C68 3 1 2SA1586 Q11 0 22 C74 1 2k R85 680 R90 R66 10k R55 10k R61 10k 100 R84 22k R20 470p C37 2SC4116 Q12 18k R71 10k R72 0 1 C16 470p C24 0 22 C637 EP523 0 22 C36 22 R19 B P FOUT NC FC LE DATA CLOCK FIN LD GND DO VCC VP OSCOUT ...

Page 49: ...665 0 001 C664 M62352GP IC11 GND AO2 AO1 DI CLK LD DO AO12 AO11 VCC VDD AO10 AO9 AO8 AO7 AO6 AO5 AO4 AO3 VSS 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 033 C45 R5CTRL 330 R119 UNR9114J Q24 AM WN_SEL UNR911NJ Q25 47p C632 22k R129 0 01 C115 UNR9213J Q21 3 3k R123 0 1 C110 3 3k R122 CDB450C24 X2 0 047 C104 0 033 C100 RSSI SQL DET_MUTE DETS 82p C98 0 1 C112 10 C109 0 22 C644 1k R120 0 1 C11...

Page 50: ...175 220 R183 22n L19 0 001 C169 2 2k R172 HVC136 D17 22n L59 2p C306 UM9401F D51 15n L54 5p C301 3p C296 HVU131TRF D48 1SS400 D46 0 001 C601 6 8k R251 0 001 C604 1SS400 D525 68k R622 0 01 C149 HVC136 D10 0 001 C132 2 2k R150 0 001 C135 0 75p C148 47 R620 4 7k R163 0 001 C146 27p C597 0 33µ L64 IFO RFI 1 2 3 µPC2757TB IC12 LO GND PS VCC 6 5 4 0 001 C600 0 001 C281 4 7k R248 1SV308 D42 C2012C 56NG L...

Page 51: ......

Page 52: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14001HZ C1 C 2003 Icom Inc ...

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