Motorola IC-T81E, IC-T81A service manual Trimmer

Page 25

[LOGIC UNIT]

REF

ORDER

 

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

R245

7030005080

S.RESISTOR

ERJ2GEJ 823 X (82 kΩ )

R246

7030005310

S.RESISTOR

ERJ2GEJ 124 X (120 kΩ )

R247

7030005090

S.RESISTOR

ERJ2GEJ 104 X (100 kΩ )

R248

7030005170

S.RESISTOR

ERJ2GEJ 474 X (470 kΩ )

R249

7030005110

S.RESISTOR

ERJ2GEJ 224 X (220 kΩ )

R250

7030005090

S.RESISTOR

ERJ2GEJ 104 X (100 kΩ )

R251

7030005600

S.RESISTOR

ERJ2GEJ 273 X (27 kΩ )

R252

7030005230

S.RESISTOR

ERJ2GEJ 334 X (330 kΩ )

R253

7030005720

S.RESISTOR

ERJ2GEJ 563 X (56 kΩ )

R254

7030005720

S.RESISTOR

ERJ2GEJ 563 X (56 kΩ )

R267

7030004980

S.RESISTOR

ERJ2GEJ 101 X (100 Ω )

R301

7030005720

S.RESISTOR

ERJ2GEJ 563 X (56 kΩ )

R302

7030005050

S.RESISTOR

ERJ2GEJ 103 X (10 kΩ )

R303

7030005600

S.RESISTOR

ERJ2GEJ 273 X (27 kΩ )

R304

7030005720

S.RESISTOR

ERJ2GEJ 563 X (56 kΩ )

R305

7030004980

S.RESISTOR

ERJ2GEJ 101 X (100 Ω )

R306

7030005090

S.RESISTOR

ERJ2GEJ 104 X (100 kΩ )

R307

7030007320

S.RESISTOR

ERJ2GEJ 225 X (2.2 MΩ )

R308

7030005310

S.RESISTOR

ERJ2GEJ 124 X (120 kΩ )

R309

7030005040

S.RESISTOR

ERJ2GEJ 472 X (4.7 kΩ )

R310

7030005040

S.RESISTOR

ERJ2GEJ 472 X (4.7 kΩ )

R311

7030005530

S.RESISTOR

ERJ2GEJ 100 X (10 Ω )

R312

7030005110

S.RESISTOR

ERJ2GEJ 224 X (220 kΩ )

R313

7030005090

S.RESISTOR

ERJ2GEJ 104 X (100 kΩ )

R314

7030004980

S.RESISTOR

ERJ2GEJ 101 X (100 Ω )

R315

7030005240

S.RESISTOR

ERJ2GEJ 473 X (47 kΩ )

R316

7030005000

S.RESISTOR

ERJ2GEJ 471 X (470 Ω )

R317

7030005110

S.RESISTOR

ERJ2GEJ 224 X (220 kΩ )

R318

7030005120

S.RESISTOR

ERJ2GEJ 102 X (1 kΩ )

R319

7030007290

S.RESISTOR

ERJ2GEJ 222 X (2.2 kΩ )

R320

7030005060

S.RESISTOR

ERJ2GEJ 333 X (33 kΩ )

R321

7030007300

S.RESISTOR

ERJ2GEJ 332 X (3.3 kΩ )

R322

7310003600

S.TRIMMER

EVM-1XSX50 B54 (503)

R323

7030005720

S.RESISTOR

ERJ2GEJ 563 X (56 kΩ )

R324

7030005060

S.RESISTOR

ERJ2GEJ 333 X (33 kΩ )

R325

7310003600

S.TRIMMER

EVM-1XSX50 B54 (503)

R326

7310003600

S.TRIMMER

EVM-1XSX50 B54 (503)

R327

7310003600

S.TRIMMER

EVM-1XSX50 B54 (503)

R328

7030005170

S.RESISTOR

ERJ2GEJ 474 X (470 kΩ )

R329

7030005170

S.RESISTOR

ERJ2GEJ 474 X (470 kΩ )

R330

7030005170

S.RESISTOR

ERJ2GEJ 474 X (470 kΩ )

R331

7030005110

S.RESISTOR

ERJ2GEJ 224 X (220 kΩ )

R332

7030007350

S.RESISTOR

ERJ2GEJ 393 X (39 kΩ )

R333

7030005050

S.RESISTOR

ERJ2GEJ 103 X (10 kΩ )

R334

7030005120

S.RESISTOR

ERJ2GEJ 102 X (1 kΩ )

R335

7030005120

S.RESISTOR

ERJ2GEJ 102 X (1 kΩ )

R336

7030005050

S.RESISTOR

ERJ2GEJ 103 X (10 kΩ )

R337

7030005170

S.RESISTOR

ERJ2GEJ 474 X (470 kΩ )

R338

7310003600

S.TRIMMER

EVM-1XSX50 B54 (503)

R339

7030005170

S.RESISTOR

ERJ2GEJ 474 X (470 kΩ )

R340

7030005050

S.RESISTOR

ERJ2GEJ 103 X (10 kΩ )

R341

7030005050

S.RESISTOR

ERJ2GEJ 103 X (10 kΩ )

R342

7030005050

S.RESISTOR

ERJ2GEJ 103 X (10 kΩ )

R343

7030005600

S.RESISTOR

ERJ2GEJ 273 X (27 kΩ )

R361

7030005040

S.RESISTOR

ERJ2GEJ 472 X (4.7 kΩ )

R362

7030005160

S.RESISTOR

ERJ2GEJ 105 X (1 MΩ )

R363

7030005170

S.RESISTOR

ERJ2GEJ 474 X (470 kΩ )

R706

7030005050

S.RESISTOR

ERJ2GEJ 103 X (10 kΩ )

R713

7030008010

S.RESISTOR

ERJ2GEJ 123 (12 kΩ )

R714

7030008010

S.RESISTOR

ERJ2GEJ 123 (12 kΩ )

R715

7030005040

S.RESISTOR

ERJ2GEJ 472 X (4.7 kΩ )

R716

7030008010

S.RESISTOR

ERJ2GEJ 123 (12 kΩ )

R717

7030005120

S.RESISTOR

ERJ2GEJ 102 X (1 kΩ )

R718

7030008010

S.RESISTOR

ERJ2GEJ 123 (12 kΩ )

R719

7030008010

S.RESISTOR

ERJ2GEJ 123 (12 kΩ )

R726

7030005240

S.RESISTOR

ERJ2GEJ 473 X (47 kΩ )

R727

7030005220

S.RESISTOR

ERJ2GEJ 223 X (22 kΩ )

R729

7030008400

S.RESISTOR

ERJ2GEJ 182 X (1.8 kΩ )

R730

7030005110

S.RESISTOR

ERJ2GEJ 224 X (220 kΩ )

R731

7030008300

S.RESISTOR

ERJ2GEJ 184 X (180 kΩ )

R732

7030005040

S.RESISTOR

ERJ2GEJ 472 X (4.7 kΩ )

R733

7310003590

S.TRIMMER

EVM-1XSX50 B24 (203)

R734

7030005220

S.RESISTOR

ERJ2GEJ 223 X (22 kΩ )

R735

7030007340

S.RESISTOR

ERJ2GEJ 153 X (15 kΩ )

R736

7030007340

S.RESISTOR

ERJ2GEJ 153 X (15 kΩ )

R737

7510001040

S.THERMISTOR TBPS1R153K460H5Q

R751

7030005050

S.RESISTOR

ERJ2GEJ 103 X (10 kΩ )

R752

7030005230

S.RESISTOR

ERJ2GEJ 334 X (330 kΩ )

R753

7030005000

S.RESISTOR

ERJ2GEJ 471 X (470 Ω )

R754

7030005240

S.RESISTOR

ERJ2GEJ 473 X (47 kΩ )

R755

7030005120

S.RESISTOR

ERJ2GEJ 102 X (1 kΩ )

R756

7030004980

S.RESISTOR

ERJ2GEJ 101 X (100 Ω )

 

 

 

 

[LOGIC UNIT]

REF

ORDER

 

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

 

 

 

 

R757

7030005220

S.RESISTOR

ERJ2GEJ

223 X (22 kΩ )

R758

7030005240

S.RESISTOR

ERJ2GEJ

473 X (47 kΩ )

R759

7030005110

S.RESISTOR

ERJ2GEJ

224 X (220 kΩ )

R760

7030005160

S.RESISTOR

ERJ2GEJ

105 X (1 MΩ )

R901

7030000320

S.RESISTOR

MCR10EZHJ 330 Ω (331)

C1

4550005980

S.TANTALUM

TEMSVA 1A 475M-8L

C2

4030013850

S.CERAMIC

ECUE1E102KBQ

C3

4030014160

S.CERAMIC

ECUE1H270JCQ

C4

4030014160

S.CERAMIC

ECUE1H270JCQ

C5

4030013850

S.CERAMIC

ECUE1E102KBQ

C6

4550005980

S.TANTALUM

TEMSVA 1A 475M-8L

C7

4030013850

S.CERAMIC

ECUE1E102KBQ

C8

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C9

4030013850

S.CERAMIC

ECUE1E102KBQ

C10

4030009820

S.CERAMIC

C1005

JB

1C

103K-T-A

C11

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C12

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C13

4030013850

S.CERAMIC

ECUE1E102KBQ

C17

4550003260

S.TANTALUM

TEMSVA 1V 684M-8L

C75

4550002980

S.TANTALUM

TEMSVA 1C 225M-8L

C76

4030013850

S.CERAMIC

ECUE1E102KBQ

C77

4030013850

S.CERAMIC

ECUE1E102KBQ

C82

4030013850

S.CERAMIC

ECUE1E102KBQ

C90

4030013850

S.CERAMIC

ECUE1E102KBQ

C91

4030013850

S.CERAMIC

ECUE1E102KBQ

C92

4030013850

S.CERAMIC

ECUE1E102KBQ

C93

4030013850

S.CERAMIC

ECUE1E102KBQ

C101

4030013850

S.CERAMIC

ECUE1E102KBQ

C102

4030013850

S.CERAMIC

ECUE1E102KBQ

C103

4030013850

S.CERAMIC

ECUE1E102KBQ

C141

4030013850

S.CERAMIC

ECUE1E102KBQ

C142

4550006780

S.TANTALUM

TEMSVB2 0J

476M-8R

C143

4030013850

S.CERAMIC

ECUE1E102KBQ

C145

4030013850

S.CERAMIC

ECUE1E102KBQ

C146

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C147

4550006730

S.TANTALUM

TEMSVB2 0J

226M-8L

C148

4030013850

S.CERAMIC

ECUE1E102KBQ

C149

4550006780

S.TANTALUM

TEMSVB2 0J

476M-8R

C150

4030009820

S.CERAMIC

C1005

JB

1C

103K-T-A

C151

4030013850

S.CERAMIC

ECUE1E102KBQ

C152

4030008880

S.CERAMIC

C1608

JB

1C

223K-T-A

C162

4030013850

S.CERAMIC

ECUE1E102KBQ

C201

4030008920

S.CERAMIC

C1608

JB

1C

473K-T-A

C202

4550003080

S.TANTALUM

TEMSVA 1A 335M-8L

C203

4030014180

S.CERAMIC

ECUE1H470JCQ

C204

4030013850

S.CERAMIC

ECUE1E102KBQ

C205

4510004640

S.ELECTROLYTIC ECEV1CA470SP

C206

4510005320

S.ELECTROLYTIC ECEV0JA101SP

C207

4550005980

S.TANTALUM

TEMSVA 1A 475M-8L

C208

4030013850

S.CERAMIC

ECUE1E102KBQ

C209

4030013850

S.CERAMIC

ECUE1E102KBQ

C210

4550006250

S.TANTALUM

TEMSVA 1A 106M-8L

C211

4030013850

S.CERAMIC

ECUE1E102KBQ

C212

4510006960

S.ELECTROLYTIC ECEV0JA151WP

C213

4550006680

S.TANTALUM

ECST0JY156R

C214

4550002980

S.TANTALUM

TEMSVA 1C 225M-8L

C215

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C216

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C217

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C220

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C240

4030009980

S.CERAMIC

C1608

JB

1H

152K-T-A

C241

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C242

4030008910

S.CERAMIC

C1608

JB

1C

393K-T-A

C243

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C244

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C245

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C246

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C247

4030014200

S.CERAMIC

ECUE1H101JCQ

C248

4030011600

S.CERAMIC

C1608

JB

1C

104KT-N

C249

4030009820

S.CERAMIC

C1005

JB

1C

103K-T-A

C250

4030009820

S.CERAMIC

C1005

JB

1C

103K-T-A

C251

4030013850

S.CERAMIC

ECUE1E102KBQ

C252

4030006870

S.CERAMIC

C1608

JB

1H

222K-T-A

C253

4030006880

S.CERAMIC

C1608

JB

1H

472K-T-A

C301

4030006870

S.CERAMIC

C1608

JB

1H

222K-T-A

C302

4030006880

S.CERAMIC

C1608

JB

1H

472K-T-A

C303

4030010040

S.CERAMIC

C1608

JB

1H

561K-T-A

C304

4030013850

S.CERAMIC

ECUE1E102KBQ

C305

4030006870

S.CERAMIC

C1608

JB

1H

222K-T-A

C306

4550006780

S.TANTALUM

TEMSVB2 0J

476M-8R

 

 

 

 

 

 

 

S.=Surface mount

6 - 2

Page 24 Page 26
Image 25
Page 24 Page 26
Contents Multiband FM Transceiver Ordering Parts IntroductionRepair Notes Sample OrderTable of Contents General SpecificationsTransmitter Version 50 MHz 145 MHz 440 MHz 1200 MHz MHz RX onlyBand ReceiverWFM WFMLogic Unit Inside ViewsRF Unit CPURemoving the Chassis Panel Removing the Shield Plate Disassembly InstructionsRemoving the Logic Unit Removing the RF Unit Logic unitCircuit Description Antenna Switching Circuits RF UnitReceiver Circuits Duplexer Circuit RF Unit7 1ST Mixer Circuit RF Unit Transmitter Circuits APC Circuits RF Unit DRIVE/POWER Amplifier Circuits RF UnitMHz PA APC Control CircuitPLL Circuits Power Supply Circuits Voltage LineLine Description VCC1 I/O Expander IC RF Unit IC2 Port Allocations2 I/O Expander IC RF Unit IC3 Pin Port Description Number NameCPU Logic Unit IC1 Preparation Adjustment Procedures‘ Required Test Equipment ConnectionPLL Adjustment ULV RF Unit Bottom ViewVLV RF Unit TOP View 6MLVDial Receiver AdjustmentSensitivity VHFLogic Unit TOP View SSG MeterTop Push and hold MHz band 101 dBmPush and hold Displayed frequency445.000 MHz USA-1 SQL keyTransmitter Adjustment HPF OFF LPF DeviationDtmf AUS, SEA=Surface mount Parts ListTrimmer Ceramic ECUE1H121JCQ Transistor UN911D TX Coil Eljnd R10J 0.1U Themistor Ceramic ECUE1H060CCQ Ceramic ECUE1H390JCQ VCO Board Ceramic ECUE1H120JCQ Accessories Mechanical Parts and DisassemblyChassis Parts VCO UnitMP29 C Transistor and FET’S SEMI-CONDUCTOR InformationDiodes Logic Unit Board LayoutsTOP View IC1 Bottom ViewIC3 GND Pset IfinIC6 RF UnitL912 J4 to Logic unit J1IC3 MP1IC2 J302 to RF unit VCO BoardOUT 12VCOOUT VLVCO3 VHF GND VHVCO3 UVCO3 Uhfout GND 12VCO3 GNDQ354 Block Diagram TX/RX Frequency Mode Xtal BPF PDA2, CK AMPTX/RX Buff ANT LPF HPF AMPMode Xtal Initial BPF ResetMOD TX/RX Frequency ANT Buff HPF LPF YGRLogic Unit Section Voltage DiagramOscin Mixin Oscout GND Mixout REC VCC DET Ifin Rssi 2NDLODEC Ifout Filout Quad WFM NTCCF20124AH 473KCT TXCCOM3 COM2 Reset Power 12VCO COM2 ResetClonein VCC VIN Cpuhv COM4 COM3 COM2 COM1VHF RF Unit400M 1200M00M 50M1200MHz 400MHzPLST1 IN1 GND1ENB VCC2 LOK GND2Icom America Inc Icom Inc 5566I-S
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