Icom iF110 Service Manual Download | Manualshive

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SECTION 10

BLOCK DIAGRAM

DISC

MIC

AFO

BEEP

8V

MCOT

MCIN

BEEPO

RSSI

MIXER

8V

CSFT

19.6608 MHz

BEEP

NOIS
DIM
CDEC
SDEC

EPTT
LVIN
RSSI

F

D

E

DET

DISC

J6

MAIN UNIT

FRONT UNIT

J1

CTCSS/DTCS DEC

5/2 TONE DEC

J1

BEEP0

182.35 MHz-220.35 MHz

46.35 MHz

450 kHz

SQIN

DET

45.9 MHz

15.3 MHz

HVC362

D21

BAL

REF

136-174 MHz

TENC

NWC

AF VR

PWR

S2-S7

JACK

MIC

ACC

M62363FP-650C

IC6

BU4066BCFV

IC14

IC1 TA31136FN

CPU

NOIS

TMUT

T2

T1

T2

AF ON

DATA LINE

RX LINE

TX LINE

COMMON LINE

CONTROL LINE

Explanatory notes

DUSE

TENC

REM

TONE

RSSI

TX VCO

F

RX VCO

RXC

TXC

8V

LVIN

OPTION

IF IC

D/A

DISC

MCOT

MCIN

SIGO

SIG

F

EPTT

HORNO

DIM

DIM

HORN

PTT

AFO

IN

8V

EXOE

LCS

LSCK

LSO

AFO

MIC

PTTI

PTT

CLI CLO

SENC0-3

CENC0-2

RESET

8V

VCC

CPU5

CPU5

HV

PWON

RXC

TMUT

VCC

8V

R8V

T8V

5V

CDEC

SDEC

AFVI

POSW

KS0-1

KR0-2

RMUT

MMUT

TXC

SW

ANALOG

Q30 DTC144EU

Q26 2SA1577

REG

R8

2SK1829

Q1

AGC

LPF

R59

PTTO

2SC3356

Q8

AMP

DRIVE

DTC144EU

Q5

SW

W/N

DTC144EU

Q3

FIL

SW

AN78L05M

IC10

IC17

BUSY

RXC

NWC

RMUTE

RMUT

TMUT
HORNO

BU40948BCFV

D42

DAP222

CPU5

REG

W2

2SJ144

Q31

SW

LINE

2SK880

Q18

BUFF

2SC5107

Q12

BUFF

2SC5107

Q11

BUFF

2SC5107

Q10

BUFF

J4

SP

POSW

R14

D29 MA2S111

Q36 DTC144EU

Q35 DTC363EK

MUTE

AF

LA4425A

IC8

AMP

AF

TA75S01F

IC15

AMP

PRE

D23 DA221

Q29 DTC114TU

Q25 2SD1664

REG

T8

TA7808F

IC9

REG

+8

Q28 XP6501

Q27 2SA1577

REG

+5

NJM12902V

IC16

HPF

HPF

ALFYM450F=K

FI2

CERAMIC

BPF

2SC4215

Q4

AMP

IF

FL-335

FI1

XTAL

BPF

TA75S01F

IC2

AMP

APC

3SK293

Q2

AMP

RF

BPF

HVC375B

D8

BPF

HVC375B

D4

BPF

HVC350B

D9

BPF

HVC350B

D10

BPF

3SK299

Q3

1SV239

D18

MOD

FM

NJM12902V

IC5

AMP

NJM12904V

IC5

AMP

CR-520

X1

CDBC450CX24

X1

CR-740

X2

2SC4116

Q34

X3

MB15A02PFV-1

IC4

IC

PLL

LOOP

FIL

Q16 DTC144EU

Q15 XP1214

SW

VCO

2SC4116

Q17

RIPPLE

FIL

D16, D31 HVC376B

2SC4226

Q13

D33, D34 HVC376B

2SC4226

Q14

D14, D15

MA77

SW

TX/RX

S-AV33 [25W]
S-AV32 [50W]

IC3

AMP

PWR

D48 1SV307

D6 MA77

D5 UM9401F

D3 XB15A407 [50W]

D2 UM9401F [25W]

SW

ANT

NJM12902V

IC16

RESTO-

RATION

MA77

D4

SW

SHIFT

S-80942CNMC-G9C

IC2

HD6433687A05FP

IC1

RESET

EXP

MMUT

CTRL

HN58X2464TI

IC3

EEPROM

LC75834W

IC6

SEG1-32

COM1-4

DTC114TU

Q5

DTC114TU

Q2

LIGT2

LIGT1

DRIVER

LCD

CTRL

LIGT

DS1-9

SML-311YT

CTRL

DIM

Q24 DTC144EU

Q23 2SJ377

POWER

SW

D28 MA2S728

SW

MUTE

2SC4215

Q19

REF

1SS375

D1, D11

DET

PWR

NJM12902V

IC5

BEEP

LPF

NJM12902V

IC5

LPF

NJM12902V

IC16

LPF

NJM12902V

IC16

LPF

NJM12904V

IC5

SIG

LPF

LPF

LPF

LPF

LPF

LPF

KEY

×

6

L2-0607TAY

DS11

LCD

REM

SIGO

BEEPO

AFONO

MMUTE

PTTI

BUSY

RMUT

CTRL

MMUT

MMUTE

D43

DAP222

AFONO

AFON

D44, D45

MA2S111

AFON

CTRL

10 - 1

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Summary of Contents for iF110

Page 1: ...VHF TRANSCEIVER iF110 iF111 iF121 SERVICE MANUAL...

Page 2: ...0 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 tran...

Page 3: ...RES 5 1 PREPARATION 5 1 5 2 PLL ADJUSTMENT 5 4 5 3 SOFTWARE ADJUSTMENT 5 5 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS...

Page 4: ...mum 128 channels 50 nominal SO 239 13 6 V DC nominal 13 2 V DC nominal TX 7 0 A at 25 W 14 0 A at 50 W Rx 1200 mA maximum audio 300 mA stand by 30 C to 60 C 22 F to 140 F 25 C to 55 C 150 W 40 H 117 5...

Page 5: ...0F K D A converter IC6 M62363FP 650C IF IC IC1 TA31136FN 1st IF filter FI1 FL 335 Located under side of the point Final FET module IC3 S AV33 CPU 5V regurator IC10 AN78L05M 8V regurator IC9 TA7808F VC...

Page 6: ...8 screws E Remove the filter case F Unscrew the screw G Unsolder 3 points H from the antenna connector Unsolder 4 points I from IC3 E F G H I Lift up the front portion of the main unit and remove it I...

Page 7: ...mixer circuit converts the received signals to a fixed frequency of the 1st IF signal with the PLL output frequency By changing the PLL frequency only the desired frequency will pass through a MCF Mo...

Page 8: ...F signals even when noise squelch is open A portion of the AF signals from the FM IF IC IC1 pin 9 passes through the low pass filter IC16 to remove AF voice signals and is applied to the CTCSS or DTCS...

Page 9: ...he refer ence frequency The PLL output frequency is controlled by the divided ratio N data of a programable divider The PLL circuit contains the TX RX VCO circuit Q13 Q14 The oscillated signal is ampl...

Page 10: ...the key matrix Output ports for 5 2 tone and DTMF signals Input port for the PLL unlock signal from the PLL IC MAIN unit IC4 Input port for the key matrix Output ports for CTCSS DTCS signals Input por...

Page 11: ...for the AF volume control signal R14 High VOL is maximum clockwise Input port for the CTCSS DTCS decod ing signals Input port for the single tone decoding signal Input port for the optional board det...

Page 12: ...the appropriate CD drive e Select Run from the Start menu r Type the setup program name using the full path name then push Enter key ex D CSF100ADJ Setup exe t Follow the prompts y Program group CS F...

Page 13: ...eter DC voltmeter GRADE AND RANGE Output voltage 13 2 V DC Current capacity 15 A or more Measuring range 1 100 W Frequency range 100 300 MHz Impedance 50 SWR Less than 1 2 1 Frequency range 0 1 300 MH...

Page 14: ...00 V CTCSS 174 AEh 3 41 V SQL Lev 0 00h 0 00 AGC 255 FFh 5 00 V CH No 01 RX Freq 136 200000 TX Freq RF Power High Mode Wide Transceiver s connection state Reload adjustment data Receive sensitivity me...

Page 15: ...VOLTAGE 1 2 3 4 Operating freq 174 000 MHz Receiving Output power Low1 Transmitting Operating freq 136 000 MHz Receiving Output power Low1 Transmitting MAIN Connect a digital multi meter or an oscill...

Page 16: ...req 155 000 MHz Output power Low1 IF bandwidth Wide CTCSS 151 4 Hz DTCS code 007 Set the FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF Detector P P 2 No audio applied to the MIC connector T...

Page 17: ...Receiving Operating freq 136 000 MHz IF bandwidth Wide Connect an SSG to the antenna con nector and set as Frequency 136 000 MHz Level 14 V 84 dBm Modulation 1 kHz Deviation 3 5 kHz N W 2 8 kHz N M R...

Page 18: ...RESISTOR ERJ2GEJ 102 X 1 k R67 7030005050 S RESISTOR ERJ2GEJ 103 X 10 k R68 7030005050 S RESISTOR ERJ2GEJ 103 X 10 k R73 7030005050 S RESISTOR ERJ2GEJ 103 X 10 k R74 7030005050 S RESISTOR ERJ2GEJ 103...

Page 19: ...375BTRF D5 1750000510 S DIODE UM9401F D6 1790000620 S DIODE MA77 TX D7 1790001240 S DIODE MA2S728 TX D8 1750000720 S VARICAP HVC375BTRF D9 1750000710 S VARICAP HVC350BTRF D10 1750000710 S VARICAP HVC3...

Page 20: ...7030003320 S RESISTOR ERJ3GEYJ 101 V 100 R74 7030003690 S RESISTOR ERJ3GEYJ 124 V 120 k R75 7030003690 S RESISTOR ERJ3GEYJ 124 V 120 k R76 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 R77 7030003560 S RES...

Page 21: ...R ERJ3GEYJ 221 V 220 R312 7030003720 S RESISTOR ERJ3GEYJ 224 V 220 k R313 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 M R314 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 k R315 7030003680 S RESISTOR ERJ3GEYJ 1...

Page 22: ...70 S CERAMIC C1608 CH 1H 330J T C127 4030007030 S CERAMIC C1608 CH 1H 150J T C129 4030009510 S CERAMIC C1608 CH 1H 010B T C131 4030009510 S CERAMIC C1608 CH 1H 010B T C132 4030011600 S CERAMIC C1608 J...

Page 23: ...C C1608 JB 1H 102K T C339 4030009550 S CERAMIC C1608 CH 1H 2R5B T C342 4550006410 S TANTALUM ECST1VY334R C343 4030006900 S CERAMIC C1608 JB 1H 103K T C348 4030006860 S CERAMIC C1608 JB 1H 102K T C349...

Page 24: ...C 1046 1 DS11 5030002510 LCD L2 0607TAY 1 EP2 8930059170 LCD contact SRCN 2622 SP N W 1 MP1 8930059110 2622 spring 1 FRONT UNIT ORDER NO REF NO DESCRIPTION QTY J4 6450000140 Connector HSJ0807 01 010 1...

Page 25: ...F FRONT UNIT Unit abbreviations F FRONT UNIT M MAIN UNIT C CHASSIS PARTS EP2 F MP6 C MP7 C MP3 C SP1 F MP4 C MP17 C MP11 C MP7 M MP1 C J1 C MP10 C MP10 M MP1 M MAIN UNIT MP9 M MP11 M MP9 C MP6 M MP2...

Page 26: ...HQ Symbol R25 Symbol AB B E C 2SC4116 BL Symbol LL Symbol QO Symbol R25 Symbol MFO Symbol DAQ Symbol VG Symbol 4L Symbol XY Symbol K1 Symbol UF Symbol U73 Symbol 04 Symbol 26 Symbol H27 Symbol 9H Sym...

Page 27: ...SECTION 9 BOARD LAYOUTS 9 1 FRONT UNIT TOP VIEW 8V 1 to Microphone 7 2 8 J1 AFO MICE GND CLO PTT MIC CLI 9 1...

Page 28: ...40 J2 DIM DAST OPT3 OPT2 OPT1 PTTO PTTI REM SCK SI SO CIRQ CCS MIC EPTT NC BEEP PWON 8V GND GND TONE TENC NOIS EXOE EXST UNLK PLST CDEC SDEC OV12 RSSI LVIN TEMP BATV NC NC 5V CPU5 AFO 1 13 2 14 J3 GN...

Page 29: ...SY NC SIGO OPT1 OPT2 OPT3 GND DAST OV12 OV12 DIM 40 2 39 to FRONT unit J2 1 J2 DAST OPT3 OPT2 OPT1 PTTO PTTI REM SCK SI SO CIRQ CCS MIC EPTT NC BEEP PWON 8V GND GND TONE TENC NOIS EXOE EXST UNLK PLST...

Page 30: ...SP 14 8 1 1 8 16 9 1 7 14 8 7 12 24 1 13 9 4 BOTTOM VIEW MAIN UNIT...

Page 31: ...Q36 DTC144EU Q35 DTC363EK MUTE AF LA4425A IC8 AMP AF TA75S01F IC15 AMP PRE D23 DA221 Q29 DTC114TU Q25 2SD1664 REG T8 TA7808F IC9 REG 8 Q28 XP6501 Q27 2SA1577 REG 5 NJM12902V IC16 HPF HPF ALFYM450F K...

Page 32: ...2 47k SENC2 SENC1 R31 100k SENC0 R30 220k C29 10 11 GND V 4 IC5 NJM12902V C28 0 1 9 10 IC5 NJM12902V 8 C84 47p R44 150k C27 270p C76 0 1 C41 0 001 R43 33k R42 39k C25 0 01 C26 0 1 R41 10k R40 47k R81...

Page 33: ...R209 47k C200 0 1 R210 100K TEMP C350 1 C287 R291 100k 0 0033 MOD F C337 0 001 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IC1 TA31136FN OSCIN OSCOUT MIXOUT VCC IFIN DEC FILOUT FILIN MIXIN GND N REC N DET...

Page 34: ...R48 180k C81 0 001 C77 0 001 R53 1 R58 100 R10 270k R9 10k C511 0 3p D12 1SS375 50W only 50W only C80 0 1 R52 15k R54 10k 25W 8 2k 50W C78 0 001 R57 10k T2 C74 0 001 C73 1 D28 MA2S728 R55 4 7k C88 0...

Page 35: ......

Page 36: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13911HZ C1 C 2003 Icom Inc...

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