Icom IC-V82 Service Manual Download

Page: 32 / 34

VOLTAGE LINE

Explanatory notes

TX LINE

RX LINE

26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

100

IC151
AMBE-2020

GND
CODEC_RX_CLK
CHAN_RX_CLK
CODEC_RX_STRB
CHAN_RX_STRB
CODEC_RX_DATA
CHAN_RX_DATA
CODEC_TX_CLK
CHAN_TX_CLK
GND
VDD
CODEC_TX_STRB
CHAN_TX_STRB
VDD
GND
CODEC_TX_DATA
CHAN_TX_DATA
NC
VDD
VDD
VDD
VDD
VDD
VDD
GND

CLOCK_MODE

GND

VDD

GND

VDD

GND

VDD

GND

X2/CLKIN

RESETN

RATE_SEL0

RATE_SEL1

RATE_SEL2

RATE_SEL3

RATE_SEL4

CHANN_SEL0

VDD

CHANN_SEL1

SOFT_EN

BAUD_SEL0

BAUD_SEL1

SLIP_EN

SLEEP_EN

CODEC_SLE0

CODEC_SEL1

VAD_EN

VDD

GND

VDD

GND

VDD

GND

VDD

EPR

VDD

ENCODER_EN

GND

IC204
HD64F3687

17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

P36
P37
P52/WKP2
P53/WKP3
P54/WKP4
P55/WKP5/ADTRG
P10/TMOW
P11/PWM
P12
P56/SDA
P57/SCL
P74/TMRIV
P75/TMCIV
P76/TMOV
P24
P63/FTIOD0

P62/FTIOC0

P61/FTIOB0

NMI

P60/FTIOA0

P64/FTIOA1

P65/FTIOB1

P66/FTIOC1

P67/FTIOD1

P85

P86

P20/SCK3

P21/RXD

P22/TXD

P23

P70/SCK3_2

P87

P71/RXD_2

P72/TXD_2

P14/IRQ0

P15/IRQ1/TMIB1

P16/IRQ2

P17/IRQ3/TRGV

P33

P32

P31

P30

PB3/AN3

PB2/AN2

PB1/AN1

PB0/AN0

PB4/AN4

PB5/AN5

PB6/AN6

PB7/AN7

AVCC

VCL

RES

TEST

VSS

OSC2

OSC1

VCC

P50/WKP0

P51/WKP1

P34

P35

IC50
AD73311ARS

1
2
3
4
5
6
7
8
9

VOUTP
VOUTN
AVDD1
AGND1
VINP
VINN
REFOUT
REFCAP
AVDD2
AGND2

DGND

DVDD

RESET

SCLK

MCLK

SDO

SDOFS

SDIFS

SDI

IC252
CMX589AD5

1
2
3
4
5
6
7
8
9

10
11
12

XTAL
XTAL/CLK_RX
CLKDIVA
CLKDIVB
RX_HOLD
RXDCACQ
PLLACQ
RX_PSAVE
VBIAS
RXFB
RX_SIG_IN
VSS

DOC2

DOC1

TXO

TXE

TXP

TXD

RXD

RXC

TXC

S/N

VDD

IC351
MAX3226EAE

1
2
3
4
5
6
7
8

READY
C1+
V+
C1-
C2+
C2-
V-
R1IN

R1OUT

INVALID

T1IN

FORCEON

T1OUT

GND

VCC

FORCEOFF

J301

to Main unit J5

PTTIN_C

PTTOUT

DMOD

AMODIN

F_RXD

BUSY_C

RES

GND

P01

AGND

TXD

232_TX

232_RX

RMUTE

FMDET

DAFOUT

REFMOD

CCS

FLASH

RXD_2_C

TXD_2_C

VCC_8V

3
2
1

IC1
S-812C33AMC-C2N-T2

VOUT
VIN
GND

IC2
R1111N321B

VDD
GND
CE

VOUT

0.001

R400
100k

R401
5.6k

Q401
DTC144EU

C401

3.3V

0.1

4.7

C11

4.7

47k

Q51
DTC144EU

R60
10k

R59

100k

Q50
2SA1586

L50
1

C54

C55

0.1

C333

0.001

C57

0.1

R51
1k

C51

0.022

R50

680

C50
0.1

DAFOUT

AGND

CP50

R52
100

C56

0.047

R58
0

ADIN

ADREF

C58

0.1

C150

C102

TZY2Z100A001

X101
CR-708

C103

R101
1M

IC101
TC7SHU04FU

C104

0.1

R102
100

R103
1k

IC103
TC7S04FU

C106

0.1

R57
47k

IC251

NJM2115V

ADREF

R53
47k

R54
47k

C53
0.1

AMODIN

R55

100k

ADIN

C250

0.1

R56
100

R252

100k

R251

47k

C252

MCLK

R261

47k

R255

47k

R254

47k

R253

47k

R257

47k

R100

C255

R256 100k

C253 22p

R260
100k

R258
100k

C256

0.1

PSAVE

TXCK

RXCK

RXDT

TXDT

TXCK

RXCK

RXDT

TXDT

TXCK

RXCK
RXDT

TXDT

Q251
DTC144EU

ACQ

CP256
CP255

CP254

C257

0.027

C258

0.027

C259

0.0022

R262
22k

R264
100k

IC253

NJM13404V

R269
33k

R267
100k

C261

0.1

C260
1

C262
1

CP252

CP251

IC254
TC4S66F

R268
390k

R270

47k

C263

0.1

DMOD

REFMOD

C351 0.22
C352 0.22

C353 0.22

C354 0.22

232_RX

R308

100

R309

100

232_TX

C355

0.1

C10

0.1

C153

0.1

C154

0.1

ATXD

ACLK

ASTB

ARXD

AEPR

ARES

SCLK

SEN

C155

0.1

C156

0.1

D151
MA2S728

ARES

R151

R152

47k

C152

0.1

C151

0.1

C157

0.1

C159

0.1

Q252
DTC144EU

DCEL

AEPR

RMUTE

Q202
DTC144EU

IC202
TC7SH08FU

RXD

C201

0.1

F_RXD

FLASH

Q201
DTC144EU

NMI

P85

R206

R201
1k

R202

R203

4.7k

R204

4.7k

R205

4.7k

P86
P87
TXD

RES

Q306
XP4312

RXD_2

Q305
XP4312

Q301
DTC144EU

PTTIN

Q303
DTC144EU

Q302
DTC144EU

BUSY

PTTIN

AGND

DMOD

AMODIN

TXD

F_RXD

232_TX

232_RX

RES

RMUTE

FMDET

DAFOUT

REFMOD

FLASH

RXD_2_C

RXD_2

TXD_2

L351
1

MCLK

ATXD

ACLK

NMI

ASTB

ARXD

ARES

MCLK

P85

P86

P87

RXD

TXD

R219

47k

R218

47k

RXD_2

TXD_2

P01

D152
MA2S111

TXCK

RXCK

RXDT

TXDT

PSAVE

BUSY

PTTIN

P01

CP216

R220 0

R221 0

R211

47k

C205

0.1

X201
CR-760
(9.8304 MHz)

C202

C207

TZY2R200A001

C204

18p

IC203
S-80928CNMC

VDD

OUT

VSS

R209
1k

C206

0.01

R212

47k

R217

47k

R216

47k

C203

0.1

L201
1

Q400
2SA1586

L151
1

CP101

ACQ

APWR

TXD_2_C

PTTOUT_C

R318 100

R317 100

R315 100

R316 100

3.3V

APWR

PSAVE

DCEL

PTTOUT_C

VCC_8V

AEPR

RMUTE_C

ACQ

RES

3.3V

PSAVE ON: L(0.0V)
PSAVE OFF: H(3.3V)

PSAVE OFF: L(0.0V)
PSAVE ON: H(3.3V)

3.2V

4.0-8.5V

PSAVE OFF: L(0.0V)
PSAVE ON: H(5.0V)

5.0V

3.2V

4.7V

3.25V

TX: 350mVp-p

3.25V

TX: 350mVp-p

PSAVE ON: L(0.0V)
PSAVE OFF: H(3.3V)

3.3V

BUSY: H(3.3V)

RX: L(0.0V)
TX: H(3.3V)

3.3V

4.5-8.5V

5.0V

3.2V

DIGITAL UNIT

12-4 UT-118 VOLTAGE DIAGRAM

12 - 3

Summary of Contents for IC-V82

Page 1: ...6 42 3 6 2 iC v82 3 26 5...

Page 2: ...E INSIDE BACK COVER FOR YOUR CONVENIENCE 2 0 2 4 3 AKE SURE THE PROBLEM IS INTERNAL BEFORE DISASSEMBLING THE TRANSCEIVER 4 OPEN THE TRANSCEIVER UNTIL THE TRANSCEIVER IS DISCONNECTED FROM ITS POWER SOU...

Page 3: ...OWER SUPPLY CIRCUITS 4 6 4 9 UT 118 PORT ALLOCATIONS 4 6 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 IC V82 ADJUSTMEN 5 2 5 3 UT 118 ADJUSTMENT 5 6 SECTION 6 PARTS LIST SECTION 7 MECHANICA...

Page 4: ...han 80 mA Less than 30 mA Dimensions Projections not included 54 0 W 139 0 H 41 1 D mm 2 1 8 W 5 15 32 H 1 5 8 D in Weight except antenna battery pack Approx 200 g 7 5 32 oz Data connector 3 conductor...

Page 5: ...ive amplifier Q2 RD01MUS1 CPU5 regulator IC12 S 812C50AMC IF amplifier Q14 2SC5006 AF power amplifier IC5 NJM2070M DA converter IC10 M62363FP CPU IC8 M30220FCRP Scrambler switch UN scrambler switch IC...

Page 6: ...f the chassis in the direction of the arrow 2 Removing the MAIN unit q Remove the Jack seal F w Unsolder 4 points G of the shield cover e Unscrew 1 nut H and 2 screws I 2 4 mm black r Unscrew 2 screws...

Page 7: ...fier The signals from the two stage BPF are converted into the 46 35 MHz 1st IF signal at the 1st mixer Q13 by being mixed with the 1st LO signals generated at the VCO Q76 D59 D60 The 1st IF signal fr...

Page 8: ...d LPF IC3 pins 13 14 The signals from the LPF are passed through another analog switch IC4 pins 8 9 digital analog switch IC15 pins 8 9 and pins 3 4 and D A converter IC10 pins 21 22 to adjust its lev...

Page 9: ...nput signal with the reference frequency and then outputs the control signal pulse type from pin 5 The pulse type signal is converted into DC voltage at the loop filter R446 R448 C472 C474 and then ap...

Page 10: ...IC14 control signal 15 CSHIFT Outputs CPU IC8 clock control signal 19 RESET Input port for RESET signal 25 PWRSW Input port for PWR LOW While pushing PWR PIN NUMBER PORT NAME DESCRIPTION 26 NOIS Inpu...

Page 11: ...0 KS4 Output ports for keypad 92 PS5C Outputs PS5 regulator Q54 control signal LOW Power saved 97 98 DICK DIUD Input port for VOL control S801 141 TONE Outputs DTMF BEEP 1750 Hz tone signals etc 4 6 2...

Page 12: ...em IC252 and are then amplified at the buffer amplifier IC253 pin 5 The amplified signals are applied to the connected transceiver via the J301 pin 3 4 7 3 RESET CIRCUIT The UT 118 has the reset IC IC...

Page 13: ...r Power attenuation 20 or 30 dB Capacity More than 5 W FM deviation meter Frequency range 30 300 MHz Measuring range 0 to 10 kHz SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION REQUIRED TEST EQUIPMENT...

Page 14: ...or to MIC jack and set as Frequency 1 kHz Level 150 mV rms Transmitting Rotate VOL to set to 4 2 kHz Push D CLR key DIGITAL VCO FREQUENCY DEVIATION 1 Set the FM deviation meter as HPF OFF LPF 20 kHz D...

Page 15: ...Deviation 3 5 kHz Receiving Push D CLR key SQUELCH 1 Set the SSG as Frequency 145 020 MHz Level 19 dB Modulation 1 kHz Deviation 3 5 kHz Receiving Close the squelch once then set the squelch level at...

Page 16: ...illoscope to pin 21 of J301 Adjust R264 to set to 350 mVp p 10 mV 2 Disconnect the pin 1 of J301 from GND after the adjustment to quit the transmit mode QUITING ADJUSTMENT MODE Disconnect the pin 14 o...

Page 17: ...DIO 1SS400 TE61 EU1 US1 EU2 US2 EU3 US3 T 67 1 40 8 D49 1750000940 S DIO 1SS400 TE61 EU1 EU2 EU3 T 68 4 40 8 D50 1790000660 S DIO MA728 TX T 114 2 3 3 D51 1750000940 S DIO 1SS400 TE61 B 13 6 41 9 D56...

Page 18: ...k T 105 5 18 6 R252 7030005310 S RES ERJ2GEJ 124 X 120 k B 109 2 2 R257 7030010040 S RES ERJ2GE JPW T 88 1 16 8 R258 7030008300 S RES ERJ2GEJ 184 X 180 k T 107 8 3 2 R259 7030005110 S RES ERJ2GEJ 224...

Page 19: ...J0EB1E102K B 104 7 5 3 C90 4030017460 S CER ECJ0EB1E102K T 109 9 6 6 C92 4030017690 S CER ECJ0EC1H121J T 104 6 5 3 C93 4030017460 S CER ECJ0EB1E102K T 102 3 6 5 C94 4030017340 S CER ECJ0EC1H010B B 103...

Page 20: ...K T 79 19 5 C460 4030007020 S CER C1608 CH 1H 120J T B 75 8 23 1 C461 4030017460 S CER ECJ0EB1E102K B 78 9 26 1 C462 4030017460 S CER ECJ0EB1E102K B 83 27 C463 4030017460 S CER ECJ0EB1E102K B 91 4 20...

Page 21: ...9 R254 7030005240 S RES ERJ2GEJ 473 X 47 k B 11 3 12 9 R255 7030005240 S RES ERJ2GEJ 473 X 47 k B 10 9 10 9 R256 7030005090 S RES ERJ2GEJ 104 X 100 k B 15 8 18 9 R257 7030005240 S RES ERJ2GEJ 473 X 47...

Page 22: ...80 Speaker SDRS 3650P 008A 1 W1 8900009640 Cable OPC 963 1 MP1 8210021290 2826 front panel 1 MP2 8930064470 2826 keyboard 1 MP3 8010019850 2826 chassis 1 MP4 8930064420 2826 D cap 1 MP5 8930064440 282...

Page 23: ...7 2 5 4 ABBREVIATIONS 33 3 0 243 5 4 0 UNIT 0 0 0 0 0 0 3 0 0 0 0 0 30 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 5NIT MM INCH...

Page 24: ...B E C UNR9213J Symbol 8C B E C UNR921NJ Symbol EX B E C E1 B2 B1 C1 C2 E2 C1 C2 E B1 B2 XP1501 AB Symbol 5R G1 G2 S D S S D G1 G2 S D 3SK318YB TL E Symbol YB E1 B1 B2 C1 C2 A C A C A C A C A C A C A...

Page 25: ...V0 V25 V30 V35 V20 V45 V40 SPEAKER W5 SP1 1 2 1 2 J2 OPT MIC J3 EXT SPEAKER SP GND CLONE AFOUT MIC GND OPT MIC EXT MIC ANTENNA S801 ENCODER E UP DN GND BATT SECTION 9 BOARD LAYOUTS MAIN UNIT TOP VIEW...

Page 26: ...C1 MICROPHONE MIC GND MIC J5 To Optional unit J301 OPSCK OPSO SICO FMDET OPV2 OPV3 GND OPT3 OPT2 REFMOD OPT1 MICIN BUSY 232TX 232RX RXMUTE MICOUT VCC_8V CCS SI OPV1 PTTOUT PTTIN 5V GND AFOUT 1 15 30 1...

Page 27: ...VCO MOD SW5V CLOCK SHIFT D56 HVC376B INITIAL KEY MATRIX D40 D49 1SS400 IC10 3 8 M62363FP SD NOIS SD NOIS LIGHT DS2 DS3 LNJ310M6URA Q25 2SC4116 IC7 S 24CS64A0I EEPROM CPU5 RESET IC21 BD5242G RESET TON...

Page 28: ...3 3 3 3 3 3 3 P P 6 42 2 K 2 07 1 3 2 K P 8 2 5 2 2 2 2 2 2 2 54 3 3 3 3 3 3 072 2 2 5 4 6 4 3 3 3 3 3 3 03 3 3 3 3 3 2 2 2 2 2 2 539 3 2 4 50 072 3 6 6 54 3 52 3 52 2 2 K 2 K 1 3 4O 04 UNIT 3 2 K 2...

Page 29: ...439 47k R440 100k R441 2 2M R442 1k R444 10k R443 22k R337 1 5M C301 0 001 C443 47p C447 1p C463 0 001 C465 0 001 C99 0 001 R69 100 R68 4 7k C205 0 001 R1 82k C76 18p L15 54nH C3 27p L4 50nH L2 50nH C...

Page 30: ...V25 V30 V20 V5 V10 V15 V0 V25 V30 V20 SECTION 12 UT 118 DIGITAL UNIT OPTIONAL UNIT 14 1 50 12 1 UT 118 BOARD LAYOUT TOP VIEW BOTTOM VIEW 1 25 26 76 100 1 10 20 11 OPSCK OPSO SICO FMDET OPV2 OPV3 GND O...

Page 31: ...B 12 2 UT 118 SEMICONDUCTOR INFORMATION TRANSISTORS AND FET S DIODES 2 42 6 2 04 4 2 5 28 2 3 48 48 28 28 48 2 4 54 6 072 6 2 6 2 6 42 5 5 5 23 4 2 42 6 2 05 3 72 4 2 6 6 24 1 80 1 80 8 23 2 3 4 Z 05...

Page 32: ...k Q401 DTC144EU C401 10 3 3V 3 3V C8 0 1 C7 4 7 R2 22 C11 4 7 R1 47k Q51 DTC144EU R60 10k R59 100k Q50 2SA1586 L50 1 C54 10 C55 0 1 C333 0 001 C57 0 1 R51 1k C51 0 022 R50 680 C50 0 1 DAFOUT AGND CP50...

Page 33: ...ERICA COM USTOMER 3ERVICE 0HONE COM MERICA NC LENWOOD ENTRE IGHWAY ELTA 6 ANADA 0HONE AX 52 HTTP WWW ICOMCANADA COM MAIL INFO ICOMCANADA COM COM ANADA LBERT 3TREET RUNSWICK 6ICTORIA USTRALIA 0HONE AX...

Page 34: ...3 COM NC...

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Icom IC-V82, Service Manual

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