Midland Radio SP-300 service manual 36- May

Page 39

MAXON

SP-300 HAND HELD

REF #

DESCRIPTION

PART #

R25

RES,TF,4.7K,5%,1/16W,TC250,0603

741-107-1472

R26

RES,TF,18,1/16W, 5%,T 1608

741-102-1180

R27

RES,TF,4.7K,5%,1/16W,TC250,0603

741-107-1472

R28

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

741-102-1221

R31

RES,TF,300,1/16W,5%,T 1608

741-102-1301

R32

RES,TF,300,1/16W,5%,T 1608

741-102-1301

R33

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

741-102-1682

R34

RES,TF,18,1/16W, 5%,T 1608

741-102-1180

R35

RES,5.6K,1/16W,5%,T 1608

741-102-1562

R37

RES,1.2K 1/16W5%T1608

741-102-1122

R41

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

741-102-1220

R42

RES,TF,12K,5%,1/16W, +/-200,0603

741-102-1123

R43

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

741-102-1103

R45

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R47

RES,TF,2.2,5%,1/10W,TC250,0805

741-117-2229

R48

RES,TF,2.2,5%,1/10W,TC250,0805

741-117-2229

R50

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

741-102-1105

R51

RES,TF,2.2,5%,1/10W,TC250,0805

741-117-2229

R52

RES,TF,3.3K,5%,1/16W,TC250,0603

741-107-1332

R53

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

741-102-1103

R54

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

741-102-1102

R55

RES,1.2K 1/16W5%T1608

741-102-1122

R56

RES,270

1/16W5%T 1608

741-102-1271

R57

RES,100K 1/16W1%T 1608

740-211-1003

R58

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

741-107-1474

R59

RES,TF,39,5%,50V,0603

741-102-1390

R61

RES,68K

1/16W1%T1608

740-211-1683

R62

RES,68K

1/16W1%T1608

740-211-1683

R63

RES,150,1/16W,5%,T 1608

741-102-1151

R64

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

741-102-1220

R65

RES,51,1/16W, 5%,T 1608

741-102-1510

R66

RES,TF,100,5%,1/16W,TC250,0603

741-107-1101

R67

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R68

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R69

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

741-107-1474

R70

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

741-107-1474

R71

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

741-102-1102

R72

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

741-107-1224

R74

RES,TF,22K,5%,1/10W,TC250,0805

741-117-2223

R75

RES,TF,47K,5%,1/16W,TC250,0603

741-107-1473

R76

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R77

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R78

RES,TF,2.7K,5%,1/16W,+/-200,0603

741-102-1272

R79

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

741-102-1100

R81

RES,TF,2.7K,5%,1/16W,+/-200,0603

741-102-1272

R82

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

741-102-1103

R83

RES,TF,18K,1/16W5%T 1608

741-102-1183

R84

RES,TF,18K,1/16W5%T 1608

741-102-1183

R85

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

741-107-1393

R86

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

741-102-1102

R87

RES,TF,330K,5%,1/16W,+/-200,0603

741-102-1334

R88

RES,TF,100,5%,1/16W,TC250,0603

741-107-1101

R89

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

741-102-1220

R91

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

741-107-1471

R92

RES,TF,2.7K,5%,1/16W,+/-200,0603

741-102-1272

REF #

DESCRIPTION

 

PART #

R93

RES,TF,100,5%,1/16W,TC250,0603

741-107-1101

R94

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

741-102-1102

R95

RES,TF,82K,5%,1/16W,TC250,0603

741-107-1823

R96

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

741-107-1393

R97

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

741-102-1100

R98

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

741-102-1103

R99

RES,100K 1/16W1%T 1608

740-211-1003

R102

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R103

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

741-102-1103

R104

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

741-102-1103

R105

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R106

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R108

RES,TF,56K,1/16W,5%,T 1608,0603

741-102-1563

R109

RES,0.1

1W1% 1218

 

740-521-0R10

R110

RES,270

1/16W5%T 1608

741-102-1271

R111

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

741-102-1103

R112

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R113

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

741-107-1474

R114

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

741-102-1104

R115

RES,TF,47,5%,1/16W,50V,T1608,0603

741-102-1470

R116

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R117

RES,TF,22K,5%,1/16W,TC250,0603

741-107-1223

R121

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

741-107-1224

R122

RES,TF,4.7K,5%,1/16W,TC250,0603

741-107-1472

R125

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

741-102-1220

R126

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

741-102-1103

R128

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

741-102-1103

R130

RES,TF,100,5%,1/16W,TC250,0603

741-107-1101

R132

RES,5.6K,1/16W,5%,T 1608

741-102-1562

R901

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

741-102-1222

R902

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

741-102-1222

R903

RES,TF,4.7K,5%,1/16W,TC250,0603

741-107-1472

R904

RES,TF,7.5K,5%,1/16W,50V,T1608,0603

741-102-1752

R905

RES,TF,27K,5%,1/16W,TC250,0603

741-107-1273

R906

RES,TF,7.5K,5%,1/16W,50V,T1608,0603

741-102-1752

R907

RES,TF,27K,5%,1/16W,TC250,0603

741-107-1273

R908

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

741-102-1100

R909

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

741-107-1471

RLK2

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK3

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK4

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK5

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK7

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK12

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK16

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK36

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK49

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK123

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RLK488

RES,TF,0,5%,1/16W,TC250,0603

741-107-1000

RV1

RES,SEMIFIXED,10KB RH0651C100103

901-002-0103

RV2

POT,ROTARY, 1K, 3DIAMM,SMD

901-001-0102

RV3

RES,SEMIFIXED,10KB RH0651C100103

901-002-0103

RV4

POT,ROTARY, 1K, 3DIAMM,SMD

901-001-0102

RV5

RES,SEMIFIXED,10KB RH0651C100103

901-002-0103

T1

COIL,IFT,SMD,455KHZQUAD

353-012-0001

T2

TRANSFORMERSCHIP

617PT-1019

840-010-0002

T3

TRANSFORMERSCHIP

617PT-1019

840-010-0002

Page -36- May 2001

Page 38 Page 40
Image 39
Page 38 Page 40
Contents Service Manual Table of Contents Board Layout Exploded View Current Consumption SpecificationsTemperature Range GeneralFrequency Bands DimensionsWeight Adjacent Channel PowerPeak 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 Speaker Audio Amplifier Squelch mute CircuitKHz Band Pass Filter Noise DetectorTo replace the belt clip Maintenance and RepairRemoving & Replacing the Belt Clip Removing the belt clipTo remove the PTT assembly Removing & Replacing the BatteryTo remove the battery To replace the batteryRemoving & 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 FRONT-END VHF Power AMPUHF Power AMP VHF 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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