Maxon Telecom SM-2000 Band Chart, REF # Description FRONT-END PCB Assembly Main Board Parts

Page 41

MAXON SM-2000 MOBILE

650-000-0001 SM-2150/VHF MAIN BOARD

BAND CHART

SM-2150L VHF BAND 1 (136-162 MHz)

SM-2150H VHF BAND 2 (148-174 MHz)

REF #

DESCRIPTION

PART #

 

REF #

DESCRIPTION

PART #

 

FRONT-END PCB ASSEMBLY

650-110-0011

FRONT-END PCB ASSEMBLY

650-110-0002

MAIN BOARD PARTS

 

 

MAIN BOARD PARTS

 

 

C155

CHIP CERAMIC 4PF

134-007-7Y

C155

CHIP CERAMIC 11PF

131-103-5Y

C160

CHIP CERAMIC 24PF

132-407-5Y

C160

CHIP CERAMIC 24PF

132-407-5Y

C164

CHIP CERAMIC 18pF

131-816-6Y

C164

CHIP CERAMIC 24PF

132-407-5Y

C165

CHIP CERAMIC 9pF

139-003-8Y

C165

CHIP CERAMIC 16PF

131-603-0

 

C245

CHIP CERAMIC 5PF

135-010-4Y

C245

CHIP CERAMIC 8PF

138-004-4Y

C248

CHIP CERAMIC 27PF

132-714-2Y

C248

CHIP CERAMIC 27PF

132-714-2Y

C249

CHIP CERAMIC 20PF

132-012-1Y

C249

CHIP CERAMIC 18PF

131-816-6Y

C253

CHIP CERAMIC 75PF

137-504-4Y

C253

CHIP CERAMIC 75PF

137-504-4Y

C254

CHIP CERAMIC 33PF

133-336-9Y

C254

CHIP CERAMIC 43PF

134-302-2Y

C269

CHIP CERAMIC 9PF

139-003-8Y

C269

CHIP CERAMIC 2.7PF

132-725-2Y

C270

CHIP CERAMIC 4PF

134-013-2Y

C270

CHIP CERAMIC 6PF

136-015-4Y

C273

CHIP CERAMIC 43PF

134-302-2Y

C273

CHIP CERAMIC 51PF

135-106-8Y

C275

CHIP CERAMIC 47PF

134-773-5Y

C275

CHIP CERAMIC 56PF

135-639-1Y

C277

CHIP CERAMIC 43PF

134-302-2Y

C277

CHIP CERAMIC 47PF

134-773-5Y

C278

CHIP CERAMIC 82PF

138-216-9Z

C278

CHIP CERAMIC 75PF

137-512-1Z

C280

CHIP CERAMIC 24PF

132-408-6Y

C280

CHIP CERAMIC 20PF

132-021-9

 

C281

CHIP CERAMIC 36pF

133-611-7Y

C281

CHIP CERAMIC 56PF

135-613-9Y

C283

CHIP CERAMIC 18PF

131-829-8Y

C283

CHIP CERAMIC 27PF

132-723-0Y

C354

CHIP CERAMIC 39PF

133-932-7Y

C354

CHIP CERAMIC 30PF

133-010-4Y

C356

CHIP CERAMIC 4PF

134-007-7Y

C356

NOT USED

NOT USED

C357

CHIP CERAMIC 4.7PF

134-767-0Y

C357

CHIP CERAMIC 5.6PF

135-627-2Y

C358

CHIP CERAMIC 4.7PF

134-767-0Y

C358

CHIP CERAMIC 5.6PF

135-627-2Y

C365

CHIP CERAMIC 16PF

131-603-0

C365

CHIP CERAMIC 18PF

131-816-6Y

C367

CHIP CERAMIC 3.3PF

133-321-5Y

C367

CHIP CERAMIC 4.7PF

134-767-0Y

C368

CHIP CERAMIC 3.3PF

133-321-5Y

C368

CHIP CERAMIC 4.7PF

134-767-0Y

L353

COIL CORE CHIP

311-117-4

L353

COIL CORE CHIP

320-859-9

 

L356

COIL CORE CHIP

311-117-4

L356

COIL CORE CHIP

311-117-4

 

R182

CHIP RESISTOR 120 OHM

060-121-4Z

R182

CHIP RESISTOR 150 OHM

060-151-1Z

Page-37-

December 98

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Page 40 Page 42
Contents SM-2000 Page Maxon SM-2000 Mobile Table of ContentsSM-2000 Exploded View Schematics and Block DiagramsPCB Layouts General SpecificationsTransceiver Nominal Performance Transmitter Operational BandwidthBand Specfications Receiver TX Tone Modulation CharacteristicsSUB Audible Tones DCS Accessories RX Tone Demodulation CharacteristicsSubaudible tones CTCSS/DCS Reliability AnalysisIntroduction Check the carton carefully for the following items Unpacking InformationGeneral Description Description of Controls Description of ControlsSM-2000 Rear Panel Digital Circuitry Theory of OperationCTCSS/DCS Decode Circuits CTCSS/DCS Encoder CircuitEeprom PLL RF Section SM-2150/VHF TX VCO RX VCOPrescaler Out of Lock DetectorReceiver RF AmplifierLow Pass Filter Receiver Audio CircuitAudio Amplifier 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 Squelch Noise Band Pass Filter Squelch Mute CircuitNoise Detector Speaker Audio AmplifierTransmit Tests Test SetupPLL Alignment SM-2150/VHF Alignment ProcedureReceiver Alignment RF Discriminator TuningAutomatic Power Adjustment Squelch AdjustmentModulation Deviation Adjustment CTCSS/DCS 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 Mounted Integrated Circuit Replacement Surface Mount Component ReplacementREF # Description Parts List Common to SM-2000Digital Parts Common on Both VHF & UHF Digital Section REF # Description FRONT-END PCB Assembly Main Board Parts Band ChartPage-38 December Page-39 December Page-40 December Page-41 December SM-2450A UHF Band SM-2450C UHF Band SM-2450D UHF Band SM-2450E UHF Band Band ChartPage-44 December Page-45 December Page-46 December Page-47 December Component Pinout Page-49 December Page-50 December IC409 Voltage Charts SM-2150/VHFPage-52 December Transistor Voltage Chart Voltage Charts SM-2450/UHF IC404 Page-56 December Status Indications & Audible Tones Trouble Shooting Chart SM-2000Page-58 December MMBV109 Replacement Module SchematicsMA-4472 Microphone Schematic Page-61- December Page-62- December Page-63- December Page-64- December SM-2000 Control Head SW5Page-66 December SM-2150/VHF Main Board AssyFront SM-2450/UHF Main Board AssySM-2000 SM-2150/VHF Exploded View Parts List Intentionally Left Blank
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