Icom IC-F14 Service Manual Download | Manualshive

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SECTION 10

BLOCK DIAGRAM

10 - 1

NOTES :

Contorol line

Common line

TX line

RX line

DATA lime

Voltage line

BAL

IC7:

NJM12902

X2:

CR-783

15.3 MHz

Q19:

2SC4116

REF

X3

BPF

PLL

IC

IC4:

MB15A02

TCXO

LVIN

S5V

LOOP

FIL

RIPPLE

FIL

Q20:

2SK3019

BUFF

CHARGE

PUMP

BUFF

45.9 MHz

SQIN

DET

MOD

LVA, T1, T2

D/A

FM IF IC

IC8:

M62363FP

Q39: 2SC4081

Q40: 2SA1576

Q14: 2SC4226

D19, 20: HVC376B

Q15: XP1214

Q16: UNR9213J

Q18:

2SK880

Q17:

2SC4116

D22:

HVC375B

D21:

HVC375B

IC7:

NJM12902

LV

LV

ADJ

RX VCO

FAST

SW

LPF

RSSI

NOIS

ALFYM450F=K

CDBC450CX24

Q26:

UNR9213J

Q34:

2SK3019

IC6:

NJM13403

IC6:

NJM13403

DISC

CONNECTOR

DET

OPTION

CTCSS/DTCS DEC

IC7:

NJM12902

450 kHz

CERAMIC

BPF

FI2

X1

LV

A

W/N

SW

VCO

SW

R5V

IC1: TA31136FN

HPF

RX

MUTE

CTCSS/DTCS

LPF

TONE

SENC0-3

TEMP

F1

T5C

R5C

VCC

S5C

F2

LPF

IC5:

NJM12902

IC10:

CD4066

ANALOG

SW

RMUT

RMUT

MMUT

TMUT

IC6:

NJM13403

IC6:

NJM13403

Q35:

2SK3019

OPTION

MCOT

CONNECTOR

MCIN

AMP

BEEP

HPF

MIC

MUTE

LV

ADJ

BUFF

FM

MOD

TX VCO

D18:

1SV239

D16, 17: HVC376B

Q13:

2SC4226

Q12:

2SC5107

Q11:

2SC5107

Q10:

2SC5107

BUFF

BUFF

TX/RX

SW

BUFF

D14, D15:

MA2S077

Q9:

2SC5110

Q8:

RD01MUS1

Q7:

RD07MVS1

IC2:

TA75S01F

D1:

RB876W

D2: 1SV307

D5: 1SV307

Q6:

UNR9113J

PRE

DRIVE

DRIVE

AMP

PWR

AMP

ATT

182. 35 MHz-220. 35 MHz

Q3:

3SK299

46. 35 MHz

MIXER

XTAL

BPF

IF

AMP

FI1:

FL-335

Q4:

2SC5107

DET

LPF

LPF

LPF

FIL

SW

CSFT

EEPROM

X3

CR-764

19. 6608 MHz

SHIFT

SW

CH

SELECT

AMP

IC7:

NJM12902

CDEC

SDEC

IC5:

NJM12902

IC5:

NJM12902

CENC0-2

Q27:

UNR9213J

S4:

TP70TF5163

BEEPO

SIGO

DUSE

MMUTE

RMUTE

AFONO

IC15:

BR24L16FV

D28:

MA2S077

OPTION

BUSY

CPU

IC13:HD6433687

R131

IC14:

BD5242

IC9:

NJM2870

RES

CPU5

Q32: XP4216

RESET

LED

CTRL

G

R

DS1:

CL-165HR

PWR

DET

ANT

SW

LPF

136-174 MHz

MUTE

SW

TMUT

J2

HSJ1122-010010

HSJ1456-010320

BM02B-ASRS-TF

MC1

PTT

J3

J1

SP1

BT1

BA

TTER

Y_1

1
2

2

2

1

VCC

F1

CLONE

BUFF

Q30: 2SA2048

Q31: XP6501

Q29: UNR9210J

D26: PB876W

PWR

CTRL

AFON

IC12:

TA7368F

AFONO

AF VOL

AF

AMP

PTT

OPTION

PTTI

CONNECTOR

Q28: UNR911HJ

PTT

DET

APC

AMP

T2

D8:

HVC375B

D4:

HVC375B

BPF

BPF

Q1:

2SK1829

GATE

CTRL

RSSI

RF

AMP

Q2:

3SK293

T1

D9:

HVC350B

D10:

HVC350B

BPF

BPF

T2

Q23: 2SB1132

Q24: XP6501

Q25: UNR9113J

S5

REG

+5

REG

Q21:

2SA1577

T5

REG

Q22:

2SA1577

R5

REG

T5V

R5V

S5V

+5V

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Summary of Contents for IC-F14

Page 1: ...SERVICE MANUAL VHF TRANSCEIVERS iC f14 iC f14s iC f15 iC f15s...

Page 2: ...back cover for your convenience 1 Make sure the problem is internal before disassembling the transceiver 2 DO NOT open the transceiver until the transceiver is disconnected from its power source 3 DO...

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

Page 4: ...45 dB min 55 dB typical for Wide with CCITT filter 43 dB min 53 dB typical for Middle 40 dB min 50 dB typical for Narrow Limiting charact of modulator 60 100 of maximum deviation Microphone impedance...

Page 5: ...87 S5 Regulator Q23 2SB1132 Q24 XP6501 Q25 UNR9113J Crystal filter FI1 FL 335 FM IF IC IC1 TA31136FN IF amplifier Q4 2SC5107 EEPROM IC15 BR24L16FV Power amplifier Q7 RD07MVS1 T5 Regulator Q21 2SA1577...

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

Page 7: ...r circuit 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 signal The filtered s...

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

Page 9: ...rive Q9 drive Q8 and power Q7 amplifiers to obtain 5 W of RF power at 7 2 V DC The amplified signal passes through the power detector D1 antenna switch D2 and low pass filter L1 L3 C2 C5 C175 C176 and...

Page 10: ...ided signal is detected on phase at the phase detector using the refer ence frequency If the oscillated signal drifts its phase changes from that of the reference frequency causing a lock voltage chan...

Page 11: ...and 43 The signals are applied to the LED driver Q32 pins 3 and 1 The driver outputs LED control signals to the LED DS1 BAL T2 T1 LVA REF Outputs the modulation balance level control signal The signal...

Page 12: ...be signals 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 transmi...

Page 13: ...city 5 A or more Frequency range DC 300 MHz Measuring range 0 to 10 kHz Frequency range 0 1 300 MHz Frequency accuracy 1 ppm or better Sensitivity 100 mV or better Input impedance 10 M V DC or better...

Page 14: ...TX power to Low2 3 174 000 MHz Set TX power to Low1 3 TX POWER CH FREQUENCY SETTING CONDITION 1 174 000 MHz Set TX power to Low1 2 136 000 MHz Set IF bandwidth to Wide 1 PLL LOCK VOLTAGE CH FREQUENCY...

Page 15: ...ator 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 connected to the antenna connector To SP IC F14...

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: ...n t e r t o t h e a n t e n n a connector Connect the RF power meter to the antenna connector Connect the FM deviation meter to the antenna connector through the attenuator Connect the FM deviation me...

Page 18: ...nect a SINAD meter with an 8 load to the SP jack through the JIG cable Connect a speaker to the SP jack through the JIG cable ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE UNIT LOCATION CONVENIENT...

Page 19: ...C375BTRF T 49 2 34 9 D23 1790001250 S DIO MA2S111 TX T 70 5 40 4 D24 1790001250 S DIO MA2S111 TX T 41 5 39 2 D26 1790001790 S DIO RB876W TL B 36 1 7 3 D27 1750000520 S DIO DAN222TL B 21 3 6 5 D28 1790...

Page 20: ...R98 7030007290 S RES ERJ2GEJ 222 X 2 2 k T 53 7 44 R100 7030005050 S RES ERJ2GEJ 103 X 10 k B 53 6 38 3 R101 7030005120 S RES ERJ2GEJ 102 X 1 k B 51 4 42 3 R102 7030005700 S RES ERJ2GEJ 274 X 270 k T...

Page 21: ...9 5 R277 7030005090 S RES ERJ2GEJ 104 X 100 k B 8 5 39 5 R278 7030005090 S RES ERJ2GEJ 104 X 100 k B 13 5 39 5 R280 7030005050 S RES ERJ2GEJ 103 X 10 k B 16 4 35 8 R284 7030004980 S RES ERJ2GEJ 101 X...

Page 22: ...0 S TAN TEESVA 0J 685M 8L B 49 2 39 8 C148 4550006250 S TAN TEESVA 1A 106M8L T 50 3 43 7 C149 4550000270 S TAN TEESVA 1E 474M8L B 47 1 39 8 C150 4030018860 S CER ECJ0EB0J105K T 43 9 22 7 C151 40300169...

Page 23: ...CJ0EB1E102K T 86 6 3 3 C315 4030017460 S CER ECJ0EB1E102K T 93 2 5 9 C316 4030016930 S CER ECJ0EB1A104K T 91 6 2 8 C317 4550007080 S TAN TEESVA 1C 106M8R B 93 11 3 C318 4030016930 S CER ECJ0EB1A104K T...

Page 24: ...26 8810009220 Screw B0 2 x 8 ZK BT 2 MP27 8810009560 Screw M2 x 6 ZK 2 MP28 8810009510 Screw M2 x 4 NI ZU BT 9 MP29 8810009510 Screw M2 x 4 NI ZU BT 1 MP30 8810009510 Screw M2 x 4 NI ZU BT 1 MP31 8810...

Page 25: ...M CONNECT Unit MP29 C MP30 C 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 S1 C W1 C W2 C W2 C MP32 C MP2 C MP42 C IC F14 F15 only...

Page 26: ...Symbol 6P 2SK880 Y Symbol XY S D G 3SK293 Symbol UF G1 G2 S D 3SK299 U73 Symbol U73 G1 G2 S D RD01MUS1 Symbol K2 RD07MVS1 Symbol RD07MVS1 G S S D G S D UNR9113J Symbol 6C B E C UNR9213J Symbol 8C UNR...

Page 27: ...81 R163 C270 R167 R159 C271 R161 R170 C273 R164 C272 R181 R237 C285 R117 R118 C154 C152 C153 C158 R106 C159 EP3 C157 R116 C165 C121 C123 R83 C161 C224 R131 R132 C162 C164 C185 R82 C120 C119 C122 C113...

Page 28: ...R77 C139 R80 EP4 L27 L43 C146 L42 R96 R302 R304 R306 R301 Q40 Q39 R303 R305 L28 C60 R33 R40 C335 R34 IC1 C188 C63 C65 C244 R144 C62 R42 C71 C69 R44 C266 C311 MP1 R10 C73 C82 C81 C13 L16 S5V IC9 C226 C...

Page 29: ...C4226 Q12 2SC5107 Q11 2SC5107 Q10 2SC5107 BUFF BUFF TX RX SW BUFF D14 D15 MA2S077 Q9 2SC5110 Q8 RD01MUS1 Q7 RD07MVS1 IC2 TA75S01F D1 RB876W D2 1SV307 D5 1SV307 Q6 UNR9113J PRE DRIVE DRIVE AMP PWR AMP...

Page 30: ...T5C SCK R117 4 7 k R118 4 7 k R305 10 k R306 10 k R111 100 k R113 4 7 k 2 1 3 9 8 7 6 5 4 3 2 1 CLOCK FIN LD GND DO OSCIN OSCOUT VP VCC DATA LE FC B P FOUT NC 10 11 12 13 14 15 16 SO S5V PLST R104 100...

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 14111IZ C1 2004 Icom Inc...

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