Midland Radio SP-300 service manual 35- May

Page 38

MAXON

SP-300 HAND HELD

REF #

DESCRIPTION

PART #

 

REF #

DESCRIPTION

PART #

C127

CAP, CER, 0.01UF,5%,50V,X7R,0603

100-521-1103

 

L15

COILCHIP,0.15UH:NL252018T-R15J

371-004-3R15

C128

CAP, TA, 4.7UF,20%,10V,3216

102-023-0475

 

L16

COIL,CHIP, 1000U,300SS-102K=CP3

370-013-4102

C129

CAP, ELE,10UF,16V 20% 3X5 5.0PT

081-032-3106

 

L17

COIL,CHIP, 1000U,300SS-102K=CP3

370-013-4102

C131

CAP, CER, 0.01UF,5%,50V,X7R,0603

100-521-1103

 

L18

COIL,CHIP, 1.0UH:NL252018T-1R0J

371-017-3102

C132

CAP, TA,4.7UF,20V,3528:293D475X0020B2T 20V

102-043-1475

 

L19

COILCHIP,10UH:LER015T100K

371-005-3103

C133

CAP,TA,1.0UF,20%,16V,3216

102-033-0105

 

Q1

TRANS,BRT,PNP,KRA102SPB,SOT-23,SW,(PB)

870-010-0007

C134

CAP, CER,.047UF,0603,

100-813-1473

 

Q2

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

870-010-0010

C135

CAP, TA,10UF, 293D106X0004A2T4V

102-003-0106

 

Q3

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

870-010-0010

C136

CAP, TA, 100UF, 20%, 6.3V, D

102-013-3107

 

Q4

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

870-010-0010

C137

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

100-621-1471

 

Q5

TRANS,KRA104S,SOT-23

870-010-0005

C145

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

100-621-1471

 

Q6

TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL)

870-200-0006

C146

CAP, CER,220PF,5%,50V,COG,0603

100-520-1221

 

Q7

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

870-100-0004

C901

CAP, CER, 0.01UF,5%,50V,X7R,0603

100-521-1103

 

Q8

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

870-100-0004

C902

CAP, CER, 0.01UF,5%,50V,X7R,0603

100-521-1103

 

Q11

TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL)

870-200-0006

C903

CAP, CER, 0.01UF,5%,50V,X7R,0603

100-521-1103

 

Q12

TRANS,NPN,BFR92A,SOT-23,RFAMP,(P2P)

870-200-0020

C904

CAP, CER, 0.01UF,5%,50V,X7R,0603

100-521-1103

 

Q13

TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL)

870-200-0006

C905

CAP, CER,18PF,5%,50V,COG,0603

100-520-1180

 

Q14

TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL)

870-200-0006

C906

CAP, CER,18PF,5%,50V,COG,0603

100-520-1180

 

Q16

TRANS,NPN,BFR92A,SOT-23,RFAMP,(P2P)

870-200-0020

C907

CAP, CER,0.1UF,+80-20%,25V,Y5V,0603

100-813-1104

 

Q17

TRANS,900MHZ AMP,MMBR951,SOT-23

870-200-0026

C908

CAP, CER,33PF,5%,50V,COG,0603

100-520-1330

 

Q18

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

870-020-0001

C910

CAP, CER, 0.01UF,5%,50V,X7R,0603

100-521-1103

 

Q19

TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL)

870-200-0006

C911

CAP, CER, 0.01UF,5%,50V,X7R,0603

100-521-1103

 

Q21

TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL)

870-200-0006

CF1

FILTER, CER,CFW455F,455KHZ

310-010-0010

 

Q22

TRANS,PNP,KTA1663(Y),SOT-89,HC/SW,(HY)

870-150-0002

CF2

FILTER, CER,CFW455HT,455KHZ

310-101-0009

 

Q23

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

870-020-0001

D1

DIODE,SW,KDS181S,SOT-23

220-010-0004

 

Q24

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

870-020-0001

D5

DIODE,PIN,UPP9401,NEEDPKG SIZE

220-020-0001

 

Q25

TRANS,NPN,BFR92A,SOT-23,RFAMP,(P2P)

870-200-0020

D6

DIODE,PIN,UPP9401,NEEDPKG SIZE

220-020-0001

 

Q26

TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL)

870-200-0006

D8

DIODE,SW,KDS193,SOT-23

220-010-0003

 

Q27

TRANS,NPN,KTC3875(BL),SOT-23,SW,(ALL)

870-200-0006

D9

DIODE,SCHOTTKY,CHIP,HSMS-2817#L31

220-040-0009

 

Q28

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

870-020-0001

D11

DIODE,SW,KDS193,SOT-23

220-010-0003

 

Q31

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

870-020-0001

D12

DIODE,SW,KDS193,SOT-23

220-010-0003

 

Q32

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

870-020-0001

D13

DIODE,SW,KDS181S,SOT-23

220-010-0004

 

Q33

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

870-100-0004

D14

DIODE,SW,KDS181S,SOT-23

220-010-0004

 

Q34

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

870-020-0001

D15

DIODE, CHIP,SM4004,400V,1A,SMD

220-030-0003

 

Q901

TRANS,NPN,KTC4075,UMT3

870-200-0031

D17

DIODE,SCHOTTKY,CHIP,PRLL5817,SOD87

220-040-0008

 

Q902

TRANS,KTA2014,MAX-900K

870-100-0018

D18

DIODE,KDS160

220-010-0017

 

Q903

TRANS,NPN,KTC4075,UMT3

870-200-0031

D20

DIODE,KDS160

220-010-0017

 

Q904

TRANS,NPN,KTC4075,UMT3

870-200-0031

D901

DIODE,SW,KDS226,SOT-23

220-010-0005

 

Q905

TRANS,NPN,KTC4075,UMT3

870-200-0031

D902

DIODE,SW,KDS226,SOT-23

220-010-0005

 

R1

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

741-102-1103

IC1

IC,VREG,TK11450M,+5V,SOT-23L,(R5)

441-010-0002

 

R2

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

741-102-1104

IC2

IC,PLL,MC145191FR2,SO-20,RS-440

440-050-0011

 

R3

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

741-102-1222

IC5

IC,VHFRCVR,MC3371D,SO-16,NWRBAND

441-060-0007

 

R4

RES,1.8K,1/16W,5%,T 1608

741-102-1182

L1

COIL,CHIP,18NH,20%,LL2012-F18NM

371-010-5180

 

R5

RES,1.8K,1/16W,5%,T 1608

741-102-1182

L2

COIL,CHIP,18NH,20%,LL2012-F18NM

371-010-5180

 

R6

RES,TF,2K, 1/16W,5%,T 1608

741-102-1202

L3

COIL,0.1UH:NL252018T-R10J

371-804-3R10

 

R7

RES,1.8K,1/16W,5%,T 1608

741-102-1182

L4

COIL,CHIP,18NH,20%,LL2012-F18NM

371-010-5180

 

R8

RES,910,1/10W,5%,T 2012

741-117-2911

L5

COIL,CHIP,18NH,20%,LL2012-F18NM

371-010-5180

 

R11

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

741-107-1101

L6

COILCHIP,0.82UH:NL252018T-R82J

371-804-3R82

 

R12

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

741-102-1562

L7

COILSPRING, 2X0.75X3T:LSMD

350-000-0103

 

R13

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

741-102-1272

L8

COILSPRING, 2X0.75X3T:LSMD

350-000-0103

 

R14

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

741-102-1272

L11

COILSPRING, 2X0.75X3T:LSMD

350-000-0103

 

R15

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

741-107-1101

L12

COIL,1.2UH:NL252018T-1R2J

371-004-31R2

 

R16

RES,910,1/10W,5%,T 2012

741-117-2911

L13

COILSPRING, 2X0.75X3T:LSMD

350-000-0103

 

R17

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

741-102-1123

L14

COILCHIP,0.47UH:NL252018T-R47J

371-804-3R47

 

R18

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

741-102-1103

 

 

 

 

R21

RES,33,1/16W5%T 1608

741-102-1330

 

 

 

 

R22

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

741-107-1472

 

 

 

 

R23

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

741-107-1101

 

 

 

 

R24

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

741-102-1562

Page -35- May 2001

Image 38
Contents Service Manual Table of Contents Board Layout Exploded View General SpecificationsTemperature Range Current ConsumptionAdjacent Channel Power DimensionsWeight Frequency BandsReceiver Peak Deviation @ 1 kHz Nom. Dev +20dBRX Tone Demodulation Characteristics Features SP-300INTRODUCTIONBusy Channel Lockout VCO Lock Time Description of Controls DescriptionTheory of Operation Digital CircuitsRF Circuits RF Circuits PLL Synthesizer Noise Detector Squelch mute CircuitKHz Band Pass Filter Speaker Audio AmplifierRemoving the belt clip Maintenance and RepairRemoving & Replacing the Belt Clip To replace the belt clipTo replace the battery Removing & Replacing the BatteryTo remove the battery To remove the PTT assemblyRemoving & Replacing the ACCES- Sory Connector Removing & Replacing the Antenna & Control KnobsTo replace the Back Cover Removing & Replacing the Back CoverTo remove the Back Cover Removing & Replacing the Main Board To remove the Main BoardTo replace the Main Board Removing & Replacing the Speaker Component ReplacementRemoving & Replacing the DAUGH- TER Boards Surface Mount Component Replacement Surface Mounted Integrated Circuit ReplacementCloning Alignment ProcedureProgramming RX VCO Test Equipment Setup S.G. @ 1kHz AudioAlignment Points Diagram TP1Troubleshooting Guide Symptoms Causes Counter MeasuresVoltage Charts Main CircuitReceive State Transmit State SP-300 Series UHF & VHF Digital Section Parts List REF# Description PART#-30- May SP-300 Series VHF RF Section Parts List REF # Description Replacement Modules-32- May -33- May SP-300 Series UHF RF Section Parts List -35- May -36- May -37- May Component Pinout KTA1504SY-39- May Base Diagram PIN Description VHF FRONT-END VHF Power AMPUHF Power AMP UHF FRONT-ENDVHF V.C.O UHF V.C.OFuse ACC-200 BatteryTcxo SP-300 Series VHF RF Schematic UHF RF Schematic -47- May Board Layout Top Main Board Assembly 416121B -49- May