Midland Radio SP-300 service manual 30- May

Page 33

MAXON

SP-300 HAND HELD

REF#

DESCRIPTION

PART#

Q413

TRANS,BRT,NPN,KRC104S,SOT-23,SW,ND

870-020-0001

Q416

TRANS,BRT,PNP,KRA110SPK,SOT-23,SW,PK

870-010-0010

Q417

TRANS,PNP,KTA1504(Y),SOT-23,SW

870-100-0004

Q701

FET, 2SK 1579-TMOS

870-030-0001

Q702

TRANS,,NPN,KTC3875S(BL)

870-200-0006

R9

RES,TF,68,5%,1/10W,TC250,0805

741-117-2680

R9A

RES,TF,68,5%,1/10W,TC250,0805

741-117-2680

R100

RES,TF,470,5%,1/16W,TC250,0603

741-102-1471

R200

RES,1.2K 1/16W5%T1608

741-102-1122

R400

RES, 9.1K 1/16W 5% T 1608

741-102-1912

R401

RES,TF,680K, 5%, 1/16W, +/-200, 0603

741-102-1684

R402

RES,8.2K,1/16W,5%,T 1608

741-102-1822

R403

RES,8.2K,1/16W,5%,T 1608

741-102-1822

R404

RES,8.2K,1/16W,5%,T 1608

741-102-1822

R405

RES,TF,100K,5%,1/16W,+/-200,0603

741-102-1104

R406

RES,8.2K,1/16W,5%,T 1608

741-102-1822

R408

RES,TF,22K,5%,1/16W, +/-200,0603

741-102-1223

R410

RES,TF,3.3K,5%,1/16W,+/-200,0603

741-102-1332

R411

RES,TF,270K,1/16W 5%T1608

741-102-1274

R412

RES,TF,22K,5%,1/16W, +/-200,0603

741-102-1223

R414

RES,TF,10K,5%,1/16W, +/-200,0603

741-102-1103

R415

RES,TF,47K,5%,1/16W, +/-200,0603

741-102-1473

R416

RES,TF,10K,5%,1/16W, +/-200,0603

741-102-1103

R418

RES,TF,560, 5%,1/16W, +/-200,0603

741-102-1561

R421

RES,TF,47K,5%,1/16W, +/-200,0603

741-102-1473

R422

RES,TF,47K,5%,1/16W, +/-200,0603

741-102-1473

R423

RES,1.2K 1/16W5%T1608

741-102-1122

R424

RES,TF,10K,5%,1/16W, +/-200,0603

741-102-1103

R425

RES,220K,1/16W,5%,T 1608

741-102-1224

R426

RES,1.2K,1/16W,5%,T1608

741-102-1122

R427

RES,TF,100K,5%,1/16W,+/-200,0603

741-102-1104

R428

RES,TF,10K,5%,1/16W, +/-200,0603

741-102-1103

R429

RES,27K,1/16W,5%,T1608

741-102-1273

R430

RES,220K,1/16W,5%,T1608

741-102-1224

R431

RES,TF,47K,5%,1/16W, +/-200,0603

741-102-1473

R432

RES,TF,4.7K,5%,1/16W,+/-200,0603

741-102-1472

R433

RES,TF,47K,5%,1/16W, +/-200,0603

741-102-1473

R434

RES,TF,47K,5%,1/16W, +/-200,0603

741-102-1473

R435

RES,TF,6.8K,5%,1/16W,+/-200,0603

741-102-1682

R439

RES,TF,3K,5%,1/16W,T1608

741-102-1302

R440

RES,TF,4.7K,5%,1/16W,+/-200,0603

741-102-1472

R441

RES,3.9K,1/16W5%T 1608

741-102-1392

R442

RES,27K,1/16W5%T 1608

741-102-1273

R443

RES,TF,2.4K,5%,1/16W,+/-200,0603

741-102-1242

R444

RES,TF, 82K,5%,1/16W,+/-200,0603

741-102-1823

R446

RES,820,1/16W,5%,T1608

741-102-1821

R447

RES,220K,1/16W,5%,T1608

741-102-1224

R449

RES,TF,20K,5%,1/16W,+/-200,0603

741-102-1203

R450

RES,TF,33K,5%,1/16W,+/-200,0603

741-102-1333

R451

RES,TF,10K,5%,1/16W, +/-200,0603

741-102-1103

R452

RES,TF,2.2K,5%,1/16W,TC250,0603

741-102-1222

R453

RES,TF,1M,5%,1/16W,+/-200,0603

741-102-1105

R454

RES,TF,22K,5%,1/16W, +/-200,0603

741-102-1223

R456

RES,TF,22,1/16W,5%,T 1608

741-102-1220

R457

RES,TF,22K,5%,1/16W, +/-200,0603

741-102-1223

R460

RES,TF,47K,5%,1/16W, +/-200,0603

741-102-1473

REF#

DESCRIPTION

 

PART#

 

R461

RES,TF,1M,5%,1/16W,+/-200,0603

741-102-1105

R464

RES,TF,4.7K,5%,1/16W,+/-200,0603

741-102-1472

R469

RES,TF,2.2K,5%,1/16W,TC250,0603

741-102-1222

R470

RES,30K,1/16W5%T 1608

 

741-102-1303

R471

RES,30K,1/16W5%T 1608

 

741-102-1303

R472

RES,36K,1/16W5%T 1608

 

741-102-1363

R473

RES,43K,1/10W,5%,T2012

MCR10EZH433J

741-117-2433

R474

RES,43K,1/10W,5%,T2012

MCR10EZH433J

741-117-2433

R475

RES,TF,47K,5%,1/16W, +/-200,0603

741-102-1473

R476

RES,360K,1/10W,5%,T2012

 

741-117-2364

R477

RES,TF,120K,5%,1/16W, +/-200,0603

741-102-1124

R483

RES,TF,2.2K,5%,1/16W,TC250,0603

741-102-1222

R484

RES,TF,4.7K,5%,1/16W,+/-200,0603

741-102-1472

R485

RES,TF,220K,5%,1/16W,T1608

741-102-1224

R487

RES,TF,120K,5%,1/16W, +/-200,0603

741-102-1124

R488

RES,TF, 0,5%,1/16W, +/-200,0603

741-102-1000

R489

RES,TF,4.7K,5%,1/16W,+/-200,0603

741-102-1472

R490

RES,TF,2.2K,5%,1/16W,TC250,0603

741-102-1222

R493

RES,TF,22K,5%,1/16W, +/-200,0603

741-102-1223

R701

RES,TF,2.2K,5%,1/16W,TC250,0603

741-102-1222

R702

RES,TF,12K,5%,1/16W T 1608

741-102-1123

R703

RES,TF,12K,5%,1/16W T 1608

741-102-1123

R704

RES,TF,100K,5%,1/16W,+/-200,0603

741-102-1104

RV401

POT,ROTARY,47K,3MMDIA,SMD

901-001-0473

RV402

POT,ROTARY, 22K,SMD

 

901-001-0223

RV403

POT,ROTARY,47K,3MMDIA,SMD

901-001-0473

X401

XTAL,3.579545MHZ,CP12A,12PF

162-000-0036

 

DIGITAL SECTION(VHFPARTS)

 

C447

CAP,CER,0.022UF,10%,50V,X7R,0603

100-621-1223

C486

CAP,CER,470PF,10%,50V,X7R,0603

100-621-1471

R409

RES,TF,150K,5%,1/16W, +/-200,0603

741-102-1154

R417

RES,TF,560, 5%,1/16W, +/-200,0603

741-102-1561

R459

RES,1.2K 1/16W5%T1608

741-102-1122

R478

RES,TF,39K,5%,1/16W,TC250,0603

741-102-1393

R479

RES,TF,20K,5%,1/16W,+/-200,0603

741-102-1203

R480

RES,TF,10K,5%,1/16W, +/-200,0603

741-102-1103

R486

RES,TF,33K,5%,1/16W,+/-200,0603

741-102-1333

 

DIGITAL SECTION(UHF PARTS)

 

C447

CAP,CER,0.0018UF,5%,50V,X7R,0805

100-621-2185

C486

N/A

 

R409

RES,TF,220K,5%,1/16W,TC250,0603

741-107-1224

R417

RES,TF,2.2K,5%,1/16W,TC250,0603

741-102-1222

R459

RES,TF,10K,5%,1/16W, +/-200,0603

741-102-1103

R478

RES,200K,1/16W,5%,T1608

741-102-1204

R479

RES,TF,100K,5%,1/16W,+/-200,0603

741-102-1104

R480

RES,51K,1/16W,5%,T1608

741-102-1513

R486

RES,18K,1/16W,5%,T1608

741-102-1183

Page -30- May 2001

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Contents Service Manual Table of Contents Board Layout Exploded View Temperature Range SpecificationsGeneral Current ConsumptionWeight DimensionsAdjacent Channel Power Frequency BandsPeak Deviation @ 1 kHz Nom. Dev +20dB ReceiverRX Tone Demodulation Characteristics SP-300INTRODUCTION FeaturesBusy Channel Lockout VCO Lock Time Description Description of ControlsDigital Circuits Theory of OperationRF Circuits RF Circuits PLL Synthesizer KHz Band Pass Filter Squelch mute CircuitNoise Detector Speaker Audio AmplifierRemoving & Replacing the Belt Clip Maintenance and RepairRemoving the belt clip To replace the belt clipTo remove the battery Removing & Replacing the BatteryTo replace the battery To remove the PTT assemblyRemoving & Replacing the Antenna & Control Knobs Removing & Replacing the ACCES- Sory ConnectorRemoving & Replacing the Back Cover To remove the Back CoverTo replace the Back Cover To remove the Main Board Removing & Replacing the Main BoardTo replace the Main Board Component Replacement Removing & Replacing the DAUGH- TER BoardsRemoving & Replacing the Speaker Surface Mounted Integrated Circuit Replacement Surface Mount Component ReplacementAlignment Procedure ProgrammingCloning RX VCO S.G. @ 1kHz Audio Test Equipment SetupTP1 Alignment Points DiagramSymptoms Causes Counter Measures Troubleshooting GuideMain Circuit Voltage ChartsReceive State Transmit State REF# Description PART# SP-300 Series UHF & VHF Digital Section Parts List-30- May REF # Description Replacement Modules SP-300 Series VHF RF Section Parts List-32- May -33- May SP-300 Series UHF RF Section Parts List -35- May -36- May -37- May KTA1504SY Component Pinout-39- May Base Diagram PIN Description UHF Power AMP VHF Power AMPVHF FRONT-END UHF FRONT-ENDUHF V.C.O VHF V.C.OACC-200 Battery TcxoFuse SP-300 Series VHF RF Schematic UHF RF Schematic -47- May Board Layout Top Main Board Assembly 416121B -49- May
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