Icom IC-F2610 Service Manual Download

Page: 42 / 46

11 - 4

VOLTAGE LINE

Explanatory notes

TX LINE

RX LINE

EP3

IC11
SC-1322/SC-1323/SC-1324

VCCA

VCC2

OUT

C15

6p[L-R]

4p[M]

3p[H]

5p[O]

L7
LA-502

C16

6p/

3p/

PAOUT

+8V

BUS LINE3

1/2VDD

L5V

VCC

+5V
+8V

BUS LINE1

+5V

+18V

T8V
+8V

MT8V

CPU5V

C281

C122

0.001

C400

47p

L20
656LZ-09K

C589

47p

Q11
2SJ377

C112

R102

3.3k

C121

0.001

C376

470p

C377

0.001

C378

47p

C379

470p

C380

0.001

C381

47p

C382

470p

C383

0.001

C123

47p

C124

C125

0.001

C384

47p

C385

470p

C386

0.001

C387

47p

C388

470p

C602

22p[R]

C604

12p[R]

C605

+18V

L5V

+18V

22p[R]

C392

470p

C391

47p

C390

470p

C389

0.001

C396

47p

C397

470p

C398

0.001

C107

1.5

R98
100

R103
3.3k

C449 47p

R101 220k

C106

0.001

R97
4.7k

R96
4.7k

R100

3.9k[H]

6.8k[M-R]

5.6k[O]

C108

0.001

IC10b
NJM2904V

6
5

R99
18k

R329

IC10a
NJM2904V

3
2

R362

10k

R361

10k

C120

0.001

PDET

L22
656LZ-09K

D45
MA111

D510
DA204U

R559

100k

OPS2

R560
1k

C549

0.01

D508
DA204U

R545

100k

R546
1k

C545

0.01

FI6

NFM60R20T152

FI5

NFM60R20T152

OPS1

L5V

BOOT

CPU5V

Q513
DTA144EU

Q511
DTA144EU

MD1

R547
1k

R548

47k

Q512
2SC4081

D506

DAN202U

FVPC

Q509
DTC144EU

R542
10k

R549
47k

R550

47k

Q508
2SK1829

FVPP

R540

4.7k

C537

0.1

R541

6.8k

C538

0.1

C535

0.1

IC506
S-812C50AUA-C3E

R259

4.7k

D30
1SS355

Q43
2SC4081

C253

Q42
2SB1123

C252

0.001

L504

3.3

IC17
AN78L05M

C264

0.1

C267

C266

0.1

C393

47p

C394

470p

C395

0.001

C591

0.001

C592

47p

Q12
2SJ377

R333

10k

R107

470

Q14
DTC144EU

C117

0.01

C116

470p

C115

470

D15

DSA3A1

C603

0.01[R]

C443

47p

C444

0.001

L53
SLF7032-
101MR45-2

C206

220

C205

0.1

IC16
TA7808F

C204

C203

0.1

+8V

1/2VDD

L5V

VCC

L5V
VCC

T8V

Q36
2SD1664

R209

4.7k

C208

R208

4.7k

D27
DA204U

Q37
2SC4116

C207

R564

47k

R567

4.7k

VRX

PWON

R563
47k

VTX

Q40
2SD1664

R213

4.7k

C211

Q41
2SC4116

R212

4.7k

R568

4.7k

D29
DA204U

R566

47k

C406

470p

R565
47k

C407

470p

+8V

+5V

T8V
+8V

+8V

+5V

T8V
+8V

Q38
2SD1664

R211

4.7k

R210

4.7k

C210

D28
DA204U

Q39
DTC114YU

Q514
DTA144EU

TMUT

R406

33k

IC18
TC7W04FU

C260

100p

R261

470k

C258
1

D32

MA742

C259

0.68

R263

10k

D33

MA8160

C261

0.001

C262

FVPX

Q44
2SK1069

C263

R262 47k

C257

D31
HSU88

C256

0.1

C255

L45
4.7

C254

R260
100

IC501
LC73661M

1
2
3
4
5
6
7
8
9

VDD
XMIT
NC
C1
C2
C3
VSS
NC
OSC1
OSC0

MUTE

TONE

X502

EFOP3584E5

C553
33p

C554
33p

DTC1
DTC2
DTC3

DTMF

DTR1
DTR2
DTR3
DTR4

DTC4

R552

C209

4.7

C402

470p

C403

470p

C404

0.001

C405

47p

1
2

R330

10k

_SP

R595 10k

C371 0.001

C94 470

C587 47p

C606 22p[R]

C93 220

IC8
LA4425A

R86

22k

C369

0.001

C92
0.1

C91

0.0022

D50

1SS355

Q7
DTC363EK

AFO

C330
0.1

R349
10k

BEEP

R81
10k

C86
0.1

C413

0.0047

IC7
M5282FP

VCC2
IN+
IN-
OUT
GND

VCC

VCAOUT

CTL

VCAIN

1
2
3
4
5

10
9
8
7
6

C316 0.1

R92

82k

C100

390p

R90

100k

R93

2.7k

C98

2.2

PAMIC

R339
27k

C318
0.01

C97

0.001

C332

2.2

R357

470k

C90

R85
47

C84 2.2

R80 22k

5
6

C95
0.1

R87
10k

C334

2.2

R360

10k

R359

10k

R88
10k

R320

100k

C326
470p

R89
22k

C101
0.01

R94
10k

R95

100k

IC9b
TA75W558FU

Q8
DTC114EU

PASP

C74

0.1

R68
22k

R70

470k

Q6
DTC114EU

C75

R569

R71

10k

R77

33k

Q515
DTA144EU

C73
0.1

R69

47k

3
2

IC3a
TA75W558FU

R65

47k

C71

0.047

R62
1.5k

R63

91k

R327

100k

R67
10k

Q5
2SC4116

C314

100

C70
0.047

IC3b
TA75W558FU

5
6

R52
2.2k

C68

0.047

C67
0.047

R51

4.12k

R53

36k

C72
2.2

R61
100

R511

180k

Q503
XP4601

C508
10

R513

56k

R514

C507

0.022

R510

R512

3.9k

R515
39k

C510

0.01

CDEC

R509
10k

C506
0.1

C509

0.1

R508

10k

AFO

R618

100

AFOUT

DISC

3
2

C61
2.2

R45 56k

C315 180p

R42
100

C60
1

R313
270k

R44 22k

IC2a
TA75W01FU

R8V

IC504
TC4W53FU

C368

R526
100k

C520

0.1

R527

100k

MODS

DMOD

AMOD

R524

100k

HFSW

R402

C519

Q506
2SK1069

C518
10

R525

100

C421

R397

100k

C361

0.001

R398
100k

D51

1SS355

C357

0.001

BUS LINE1

+5V

+5
+8V

+8V

+5V

1/2VDD

+8V

L5V

VCC

R8V
T8V

BUS LINE3

+8V

VCC

L5V

EPTT

HORN

Q45
DTC144EU

Q47
DTC144EU

DIM

R372
1k

PTT

_DIM

_HORN

_DIM

_HORN

MAIN UNIT(3)

MAIN
UNIT
(2)

MAIN
UNIT
(4)

D509
DAN202U

C542

0.1

C543

PSET

C333

2.2

R49

_DISC

R267 100k

C360
1

VCC

R363
4.7k

C536

0.1

+8V

BOOT

+5V

T8V

+5V

L5V

T8V

VCC

+8V

+5V

VCC

T8V

+8V

+5V

MT8V

VCC

T8V

+8V

+5V

R8V

PAAF

VCC

R338

56k

C83

0.1

AMUT

1/2 VDD

CDEC

AFOUT

DISC

C69
0.047

1/2VDD

L5V

VCC

+8V

L5V

VCC

BOOT

R8V

PDET

Note
[L]: Lo-band
[M]: Middle-band
[H]: Hi-band
[R]: R&TTE Type
[O]: OTHER

: Lo/Middle/Hi-band

R:0V
T:7.80V

R:12.41V
T:8.58V

R:1.05V
T:3.76V

R:0.58V
T:3.77V

R:13.13V
T:12.27V

R:0V
T:1.77V

R:13.20V
T:12.37V

0.63V

R:13.21V
T:12.48V

R:8.71V
T:0.10V

R:0.47V
T:0.63V

R:0V
T:8.66V

R:0.64V
T:0.47V

R:0V
T:8.06V

R:0V
T:8.05V

R:0V
T:8.67V

R:5.01V
T:0V

5.04V

7.54V

2.26V

12.02V

5.06V

12.57V

4.53V

5.05V

5.02V

16.54V

17.45V

16.55V

7.93V

R:8.06V
T:0V

6.10V

1.27V

SQL OPEN 0.87V
SQL CLOSE 4.56V

7.35V

4.07V

1.71V

VLO
MIN:0.40V
MAX:2.75V

4.13V

4.37V

3.96V

2.52V

SQL OPEN 0V
SQL CLOSE 4.61V
[SP MODE]

2.51V

2.47V

2.53V

4.76V

2.51V

2.53V

2.52V

2.53V

SQL OPEN 0V
SQL CLOSE 4.21V

SQL OPEN 4.81V
SQL CLOSE 0.12V

1.10V

0.50V

3.10V

2.66V

3.32V

2.55V

2.47V

2.53V

5.10V

4.97V

2.50V

4.99V

0.67V

MEASUREMENT CONDITIONS
OSCILLO SCOPE:20MHz
VOLTMETER:1

Ω

Summary of Contents for IC-F2610

Page 1: ...UHF FM TRANSCEIVER iF2610 SERVICE MANUAL...

Page 2: ...n 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 part...

Page 3: ...5 1 5 2 INITIAL SET MODE 5 2 5 3 PLL ADJUSTMENT 5 3 5 4 RECEIVER ADJUSTMENT 5 4 5 5 TRANSMITTER ADJUSTMENT 5 5 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR...

Page 4: ...00 086 400 430 MHz L band 440 490 MHz M band 490 520 MHz H band 128 16 ch 8 banks 16K0F3E 25 kHz Wide 8K50F3E 12 5 kHz Narrow 20 C to 55 C 13 2 V DC negative ground 8 0 A 25 W 6 5 A 10 W 1 2 A 700 mA...

Page 5: ...CR 573A PLL IC IC12 MC145190F D A converter IC5 M62363FP 650C FRONT unit CPU IC20 HD64F3437F BIIS only HD64F3437F16 OTHER EEPROM IC27 CAT25C64SI Low pass filter circuit 1st mixer Q2 3SK166 RF amplifie...

Page 6: ...NIT Rolling type EX 1761 MEMORY EXPANSION UNIT OPC 617 J501 J4 J6 J7 OPC 821 OPC 822 UT 96 UT 103 UT 105 UT 109 UT 110 EX 1761 PIN ASSIGNMENT 1 5 6 9 Pin No Terminal name Description Specification 1 D...

Page 7: ...ket bolts from the front plate using an allen wrench 1 32 in Separate the front unit from the transceiver main unit Remove 4 screws from the RMK 1 front unit attachment to open the rear plate Connect...

Page 8: ...r circuit Q2 to produce a 30 875 MHz 1st IF signal The 1st IF signal is passed through the matching circuit L14 L15 and a pair of crystal filters FI1a b in order to obtain selection capability and to...

Page 9: ...signal from the noise detector Q10 is applied to the CPU IC20 pin 32 The CPU then analyzes the noise condition and controls the AMUT pin 56 and SP pin 79 ports to toggle the AF mute switches Q6 Q7 CTC...

Page 10: ...evel The signal from the buffer amplifier Q20 passes through the T R switch D17 and is amplified at the drive amplifiers Q17 Q15 and power module IC11 to obtain 10 W or 25 W depending on versions of R...

Page 11: ...ft register Prescaler Phase detector Loop filter Programmable counter Programmable divider Buffer Buffer Buffer Q20 Q18 Q19 17 18 19 PSTB IC12 PLL IC PCK PDA to transmitter circuit to 1st mixer circui...

Page 12: ...o the IC1 s amplifier function pin 8 The amplified signal is output from pin 9 and is then applied to the IC22 pin 4 IC F1610 s MAIN unit as SIG OUT signal The signal is amplified at the buffer amplif...

Page 13: ...lected Outputs high pass filter s characteris tics select signal High During CTCSS operation Outputs mic audio select signal to the audio switch IC25 High While Public address func tion is ON Outputs...

Page 14: ...or more Measuring range 1 50 W Frequency range 300 600 MHz Impedance 50 SWR Less than 1 2 1 Frequency range 0 1 600 MHz Frequency accuracy 1 ppm or better Sensitivity 100 mV or better Frequency range...

Page 15: ...rol Beep ON OFF Maximum beep level DTCS balance CTCSS DTCS Tone deviation Maximum voice deviation S meter level Transmit low power L1 Transmit low power L2 Transmit high power H MODE No NOTE 2 beeps l...

Page 16: ...80 000 MHz H Transmitting Operating freq 430 000 MHz L 490 000 MHz M 520 000 MHz H Transmitting Operating freq 390 000 MHz L 440 000 MHz M 480 000 MHz H Transmitting MAIN Rear panel Connect a digital...

Page 17: ...ating freq 400 000 MHz L 440 000 MHz M 490 000 MHz H Enter Initial Set Mode No 2 Refer to page 5 2 for details Make sure no signal is being applied to the antenna connector Receiving Connect an SSG to...

Page 18: ...0 MHz M 505 000 MHz H Enter Initial Set Mode No 4 Refer to page 5 2 for details No AF signals are applied to the micro phone connector Set an FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF D...

Page 19: ...3GEYJ 104 V 100 k B R46 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R47 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R48 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 k B R49 7030003600 S RESISTOR ERJ3GEYJ 223...

Page 20: ...30 1590002290 S TRANSISTOR FMS2A T148 T Q31 1590002300 S TRANSISTOR FMW2 T148 T Q32 1530002060 S TRANSISTOR 2SC4081 T106 R T Q33 1510000510 S TRANSISTOR 2SA1576A T106R T Q35 1530002060 S TRANSISTOR 2S...

Page 21: ...6200002710 S COIL ELJFC 1R8K F B L42 6200004230 S COIL ELJNC R56K F B L43 6200004110 S COIL MC152 E558ANA 100050 T L44 6200004230 S COIL ELJNC R56K F B L45 6200002860 S COIL NL 252018T 4R7J T L46 620...

Page 22: ...3GEYJ 103 V 10 k H B 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 k M B 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 k L B R151 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 k L H B 7030003770 S RESISTOR ERJ3GEYJ 56...

Page 23: ...030003370 S RESISTOR ERJ3GEYJ 271 V 270 E B 7030003410 S RESISTOR ERJ3GEYJ 561 V 560 D B 7030003430 S RESISTOR ERJ3GEYJ 821 V 820 Other B R386 7030000180 S RESISTOR MCR10EZHJ 22 220 M B 7030000190 S R...

Page 24: ...0 S RESISTOR ERJ3GEYJ 220 V 22 B only T C2 4030011050 S CERAMIC GRM31M3C2H3R0CY21L GRM42 6 CJ C B 4030011060 S CERAMIC GRM31M2C2H4R0CY21L GRM42 6 CH Other B 4030011080 S CERAMIC GRM31M2C2H6R0DV01L GRM...

Page 25: ...120 4030006860 S CERAMIC C1608 JB 1H 102K T T C121 4030006860 S CERAMIC C1608 JB 1H 102K T T C122 4030006860 S CERAMIC C1608 JB 1H 102K T T C123 4030007090 S CERAMIC C1608 CH 1H 470J T T C124 45100057...

Page 26: ...B C287 4030007090 S CERAMIC C1608 CH 1H 470J T B C288 4030006860 S CERAMIC C1608 JB 1H 102K T B C289 4030006860 S CERAMIC C1608 JB 1H 102K T B C290 4030006860 S CERAMIC C1608 JB 1H 102K T B C291 40300...

Page 27: ...C1608 CH 1H 470J T B C527 4030011600 S CERAMIC C1608 JB 1E 104K T B C528 4030007090 S CERAMIC C1608 CH 1H 470J T B C529 4030007090 S CERAMIC C1608 CH 1H 470J T B C530 4030007090 S CERAMIC C1608 CH 1H...

Page 28: ...CONNECTOR 52365 0691 T J501 6510021300 S CONNECTOR 52365 1091 T W3 7030003860 S RESISTOR ERJ3GE JPW V B W4 8900004540 CABLE OPC 453 T W6 7120000470 JUMPER ERDS2T0 T W11 7030003860 S RESISTOR ERJ3GE JP...

Page 29: ...O DESCRIPTION QTY J2 6450000140 Connector HSJ0807 01 010 1 J5 6510018040 Connector 52330 1217 1 W4 8900004540 Cable OPC 453 1 MP1 8510006810 DC DC case 1 MP2 8510009980 1705 VCO case 1 MP4 8510010080...

Page 30: ...6 C MP3 C J2 M MP15 C MP13 M MP2 M MP4 M MAIN Top side MP6 M MP18 M J5 M MP2 C MP9 M MP12 M MP16 M MP17 M MP2 C MP14 M MP1 M MP8 M MP15 M W4 M MP8 C MP5 C MP5 C MAIN UNIT Bottom side FRONT UNIT MP1 C...

Page 31: ...ymbol BR Symbol LL Symbol R25 Symbol SE Symbol MFO Symbol MGO Symbol DAQ Symbol 4L Symbol FJ Symbol K1 Symbol TG Symbol XG Symbol K Symbol U78 Symbol 14 Symbol 113 Symbol 16 Symbol 24 Symbol 64 Symbol...

Page 32: ...SECTION 9 BOARD LAYOUTS 9 1 FRONT UNIT TOP VIEW 1 2 3 4 5 6 7 P4 MP2 P3 P2 P1 P0 8 9 0 8V 2 8 1 7 to Microphone J1 AFO MICE GND CLON PTT MIC HANG 9 1...

Page 33: ...1 48 33 32 17 49 64 1 16 4 8 5 1 128 103 39 64 38 102 65 VCC 1 to MAIN unit J5 12 J2 SQL SP SPE 8V FTXO FRXO POSW MICE MIC GND AFO MP10 MP11 9 2 BOTTOM VIEW FRONT UNIT...

Page 34: ...ptional cable OPC 617 PTT GND IN GND DISC GND PAAF GND HORN DIM VCC J4 11 1 J7 ESI ECS2 CPU5V ECK 5 1 6 2 ESO GND to optional unit EX 1761 EEPROM PTT IN PTT OUT MIC OUT MIC IN AUX BUSY NC SIG OUT OPT1...

Page 35: ...1 1 4 1 5 8 5 10 6 8 16 9 1 1 1 4 8 5 4 8 5 7 11 20 10 1 14 8 1 20 11 1 10 4 8 5 MP7 MP11 MP10 SP MP19 MP13 MP13 9 4 BOTTOM VIEW MAIN UNIT EUR 01 02 12 13 71 72 ONLY...

Page 36: ...tional cable OPC 617 PTT GND IN GND DISC GND PAAF GND HORN DIM VCC J4 11 1 J7 ESI ECS2 CPU5V ECK 5 1 6 2 ESO GND to optional unit EX 1761 EEPROM PTT IN PTT OUT MIC OUT MIC IN AUX BUSY NC SIG OUT OPT1...

Page 37: ...1 1 4 1 5 8 5 10 6 8 16 9 1 1 1 4 8 5 4 8 5 7 11 20 10 1 14 8 1 20 11 1 MP13 10 4 8 5 MP7 MP11 MP10 SP MP13 9 6 BOTTOM VIEW MAIN UNIT OTHER...

Page 38: ...144EU Q26 DTA114EU IC13 TC4W66FU Q30 FMS2A Q31 FMW2 Q32 Q33 Q505 DTC144EU X501 R8V T8V HV VCC CPU5V VRX TMUT PWON 8V MT8V 5V CTRL 5V IC16 TA7808F Q36 2SD1664 Q37 2SC4116 D27 DA204U Q38 2SD1664 Q39 DTC...

Page 39: ...1 2M R2 RV 158 R3 1M C10 0 22 R4 1k R5 100k R7 10k R8 220k 1 2 3 4 5 IC3 S 80842CLMC B63 T2 D1 MA111 R6 470k R9 220k Q1 2SC4081 C11 0 01 R10 100k R17 100k Q3 DTC114EU 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V...

Page 40: ...D AFO IC22 PC5023GR043 GJG 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 IN1 OUT1 IN2 OUT2A OUT2B REF GND VCC TONE1 TONE2 TONEOUT IN5 IN3 OUT3 IN4 OUT4 C515 0 1 C516 10 R193 22k C201 0 1 R195 240k Q35 2SC408...

Page 41: ...4p C141 3p L 4p O D17 MA77 R117 1 5k C138 6p H 4p O C135 470p C137 0 001 R115 3 3k R113 22 H 4 7 O L27 27n 22n 15n C469 220p C132 4p H 3p O R116 56 H 100 O C134 0 001 Q16 2SC3356 C424 6p H 7p O L65 15...

Page 42: ...70 C587 47p C606 22p R C93 220 IC8 LA4425A R86 22k C369 0 001 C92 0 1 C91 0 0022 D50 1SS355 SP Q7 DTC363EK AFO C330 0 1 R349 10k BEEP R81 10k C86 0 1 C413 0 0047 IC7 M5282FP VCC2 IN IN OUT GND VCC VCA...

Page 43: ...SK166 C28 0 001 R14 4 7k C573 47p C625 22p R C576 2p H C23 4p H 2p O C328 47p TUNE R609 47k R608 27k L 39k H 33k M R 47k O C430 470p C429 47p C325 0 001 C331 470p W509 C428 470p R11 150k D8 HVU350B C2...

Page 44: ...tes Decoding signal Encoding signal J1 1 2 3 4 5 6 7 8 9 SIG OUT SIG OUT DISC IN DISC IN 5V GND OPT1 SCK SI SO GND CIRQ CCS 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 to IC F2610 M...

Page 45: ......

Page 46: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14005HZ C1U C 1999 2003 Icom Inc...

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