Maxon Telecom service manual Parts List Common to SM-2000, REF # Description

Page 38

MAXON SM-2000 MOBILE

PARTS LIST COMMON TO SM-2000

PARTS LIST COMMON TO SM-2000

REF #

DESCRIPTION

PART #

 

REF #

DESCRIPTION

PART #

650-100-0002 TCXO PCB ASSY. (SEE NOTE 1) 650-090-0003 MA-4472 MIC ASSY. (SEE NOTE 1)

NOTES:

1. Components are not available, assembly is non-repairable.

650-050-0003 CONTROL HEAD PCB ASSY.

 

CON1

HEADER PIN

 

 

Z422-492-1

CON801

JACK MODULAR

 

 

420-709-9

C801

CHIP CERAMIC

47PF

134-722-1Z

C802

CHIP CERAMIC

47PF

134-722-1Z

C803

CHIP CERAMIC

47PF

134-722-1Z

C804

CHIP CERAMIC

47PF

134-722-1Z

C805

CHIP CERAMIC

47PF

134-722-1Z

C806

CHIP CERAMIC

47PF

134-722-1Z

C807

CHIP CERAMIC

47PF

134-722-1Z

C808

CHIP CERAMIC

47PF

134-722-1Z

C809

CHIP CERAMIC

47PF

134-722-1Z

C815

DISK CERAMIC (FOR SP1) 470PF

134-710-8

C821

CHIP CERAMIC

0.001UF

130-A17-6Z

C823

ELECT CAPACITOR 10UF

101-025-9

D801

DIODE SI CHIP

KDS193

243-052-6

D802

DIODE SI CHIP

KDS193

243-052-6

D803

DIODE SI CHIP

KDS193

243-052-6

D804

DIODE SI CHIP

KDS184S

243-051-5

D807

DIODE ZENER

 

 

241-099-9

D808

DIODE ZENER

 

 

241-099-9

D810

DIODE ZENER

 

 

241-099-9

D811

DIODE ZENER

 

 

241-099-9

LED1

LED LAMP

GRN

3 V

75MW

251-160-3

LED2

LED LAMP

GRN

3 V

75MW

251-160-3

LED3

LED LAMP

GRN

3 V

75MW

251-160-3

LED4

LED LAMP

GRN

3 V

75MW

251-160-3

LED5

LED LAMP

RED/GRN 3 V

251-168-1

Q821

TRANSISTOR

 

 

202-106-5

Q822

TRANSISTOR

 

 

202-106-5

R801

CHIP RESISTOR

470 OHM

060-471-0Z

R821

CHIP RESISTOR

22 OHM

060-220-0Z

R822

CHIP RESISTOR

4.7K

060-472-1Z

SP1

SPEAKER

 

4 OHM

420-108-4A

SW3

SW PUSH

 

 

 

432-063-7

SW4

TACT SWITCH

 

 

436-038-8

SW405

SW ROTARY

 

 

 

430-070-5

VR801

VR

20KA

 

450-523-5

 

HOLDER(LED)

 

 

892-390

 

HOLDER(LED)

 

 

892-540

 

P.C.B. CONTROL HEAD

 

416-988-C

Page-34-

December 98

Image 38
Contents SM-2000 Page Table of Contents Maxon SM-2000 MobileSM-2000 Exploded View Schematics and Block DiagramsPCB Layouts General SpecificationsTransceiver Nominal Performance Transmitter Operational BandwidthBand Specfications Receiver TX Tone Modulation CharacteristicsSUB Audible Tones DCS Subaudible tones CTCSS/DCS RX Tone Demodulation CharacteristicsAccessories Reliability AnalysisIntroduction Unpacking Information Check the carton carefully for the following itemsGeneral Description Description of Controls Description of ControlsSM-2000 Rear Panel CTCSS/DCS Decode Circuits Theory of OperationDigital Circuitry CTCSS/DCS Encoder CircuitEeprom PLL RF Section SM-2150/VHF RX VCO TX VCOReceiver Out of Lock DetectorPrescaler RF AmplifierAudio Amplifier Receiver Audio CircuitLow Pass Filter Noise Detect Circuit SQ BoardFrequency Synthesizer Circuit RF Section SM-2450/UHFUHF Transmitter Second Oscillator- Mixer- Limiter and FM Detector Voltage Controlled Oscillator CircuitFirst Mixer Noise Detector Squelch Mute CircuitSquelch Noise Band Pass Filter Speaker Audio AmplifierTest Setup Transmit TestsSM-2150/VHF Alignment Procedure PLL AlignmentDiscriminator Tuning Receiver Alignment RFSquelch Adjustment Automatic Power AdjustmentCTCSS/DCS Deviation Adjustment Modulation Deviation AdjustmentAlignment Points Diagram SM-2150/VHF SM-2450/UHF Alignment Procedure Page-28 December ∙ Note Release the PTT button when changing channels Page-30 December Alignment Points Diagram SM-2450/UHF Surface Mount Removal Component ReplacementSurface Mount Components Surface Mount Component Replacement Surface Mounted Integrated Circuit ReplacementParts List Common to SM-2000 REF # DescriptionDigital Parts Common on Both VHF & UHF Digital Section Band Chart REF # Description FRONT-END PCB Assembly Main Board PartsPage-38 December Page-39 December Page-40 December Page-41 December SM-2450A UHF Band SM-2450C UHF Band SM-2450D UHF Band Band Chart SM-2450E UHF BandPage-44 December Page-45 December Page-46 December Page-47 December Component Pinout Page-49 December Page-50 December Voltage Charts SM-2150/VHF IC409Page-52 December Transistor Voltage Chart Voltage Charts SM-2450/UHF IC404 Page-56 December Trouble Shooting Chart SM-2000 Status Indications & Audible TonesPage-58 December Replacement Module Schematics MMBV109MA-4472 Microphone Schematic Page-61- December Page-62- December Page-63- December Page-64- December SW5 SM-2000 Control HeadSM-2150/VHF Main Board Assy Page-66 DecemberSM-2450/UHF Main Board Assy FrontSM-2000 SM-2150/VHF Exploded View Parts List Intentionally Left Blank