Icom IC-V82 Service Manual Download Page 30 | Manualshive

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Icom IC-V82 Service Manual Download Page 30

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8

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9

51

75

1

1

12

24

13

1

1

16

17

32

33

48

49

64

4

8

5

4

8

5

H35

H30

H25

H20

H15

H10

H5

H0

H5

H10

H15

H20

H25

H30

H35

H0

V5

V10

V15

V0

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

OPT3

OPT2 REFMOD

OPT1

MICIN

—

BUSY

—

232TX

232RX

—

RXMUTE

MICOUT VCC_8V

CSS

—

SI

OPV1

PTTOUT

PTTIN

5V

GND

AFOUT

1

15

30

16

To Main unit J5

J301

12 - 1

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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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