Maxon Telecom SM-2000 service manual Page-40 December

Page 44

MAXON SM-2000 MOBILE

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

REF #

DESCRIPTION

PART #

 

REF #

DESCRIPTION

PART #

L113

COIL SPRING

 

310-794-0

 

Q127

TRANSISTOR

 

202-095-8Z

L115

COIL SPRING

 

310-793-9

 

Q128

BRT

 

202-092-5

L116

COIL SPRING

 

310-224-2

 

Q130

TRANSISTOR

 

200-003-5

L117

COIL SPRING

 

310-368-9

 

Q132

TRANSISTOR

 

202-113-1

L118

COIL CHOKE 1K

310-218-7

 

Q133

TRANSISTOR

 

202-113-1

L119

COIL CHIP

0.15UH

310-706-1

 

Q134

TRANSISTOR

 

202-095-8Z

L120

COIL CHOKE 1K

310-218-7

 

Q135

TRANSISTOR

 

202-095-8Z

L121

COIL SPRING

 

310-275-8

 

Q137

TRANSISTOR

 

202-095-8Z

L122

COIL ASS’Y

 

509-772

 

Q139

BRT

 

202-092-5

L123

COIL CHIP

47NH

310-861-7

 

Q140

TRANSISTOR

 

202-095-8Z

L124

COIL CHIP

0.68UH

310-711-5

 

Q219

TRANSISTOR

 

202-095-8Z

L125

COIL SPRING

 

310-368-9

 

Q351

TRANSISTOR

 

203-116-9

L126

COIL SPRING

 

310-627-3

 

Q352

TRANSISTOR

 

203-116-9

L127

COIL SPRING

 

311-224-7

 

Q353

TRANSISTOR

 

202-099-2Z

L128

COIL SPRING

 

311-214-8

 

Q354

TRANSISTOR

 

202-098-1

L129

COIL SPRING

 

310-536-4

 

Q360

TRANSISTOR

 

202-113-1

L130

COIL SPRING

 

311-214-8

 

R100

CHIP RESISTOR

2.2K

060-222-2Z

L131

COIL SPRING

 

311-214-8

 

R1001

CHIP RESISTOR

470

060-471-0Z

L132

COIL SPRING

 

311-305-7

 

R101

CHIP RESISTOR

1.8K

060-182-9Z

L134

COIL ASS’Y

 

509-772

 

R102

CHIP RESISTOR

0

060-000-8Z

L135

COIL ASS’Y

 

509-013

 

R103

CHIP RESISTOR

0

060-000-8Z

L225

COIL AXIAL

2.2UH

310-378-7

 

R104

CHIP RESISTOR

1.8K

060-182-9Z

L226

COIL CHIP

1UH

310-657-0

 

R105

CHIP RESISTOR

470

060-471-0Z

L227

COIL CHIP

220UH

310-862-8Y

 

R106

CHIP RESISTOR

1.8K

060-182-9Z

L228

COIL AXIAL

1MH

310-381-0

 

R107

CHIP RESISTOR

470

060-471-0Z

L229

COIL AXIAL

1MH

310-381-0

 

R108

CHIP RESISTOR

0

060-000-8Z

L351

COIL CHIP

1.0UH

311-079-3

 

R110

CHIP RESISTOR

1.2K

060-122-5Z

L352

COIL CHIP

0.82UH

311-078-2

 

R111

CHIP RESISTOR

2.7K

060-272-7Z

L354

COIL CHIP

2.2UH

311-083-6

 

R112

CHIP RESISTOR

7.5K

060-752-4Z

L356

COIL CHIP

 

311-117-4

 

R113

CHIP RESISTOR

100K

060-104-9Z

L357

COIL CHIP

2.2UH

311-083-6

 

R114

CHIP RESISTOR

10K

060-103-8Z

L358

COIL CHIP

1.0UH

311-079-3

 

R116

CHIP RESISTOR

10K

060-103-8Z

Q101

TRANSISTOR

 

202-113-1

 

R117

CHIP RESISTOR

24K

060-243-1Z

Q102

TRANSISTOR

 

202-106-5

 

R118

CHIP RESISTOR

10K

060-103-8Z

Q103

TRANSISTOR

 

202-106-5

 

R119

CHIP RESISTOR

10K

060-103-8Z

Q104

TRANSISTOR

 

202-113-1

 

R130

CHIP RESISTOR

1.2K

060-122-5Z

Q105

TRANSISTOR

 

218-057-7Z

 

R131

CHIP RESISTOR

91K

060-913-3Z

Q106

TRANSISTOR

 

203-096-4

 

R132

CHIP RESISTOR

4.7K

060-472-1Z

Q108

TRANSISTOR

 

202-095-8Z

 

R133

CHIP RESISTOR

20K

060-203-5Z

Q113

TRANSISTOR

 

200-003-5

 

R134

CHIP RESISTOR

6.8K

060-682-4Z

Q114

TRANSISTOR

 

200-003-5

 

R135

CHIP RESISTOR

39

060-390-8Z

Q116

TRANSISTOR

 

203-181-7

 

R136

CHIP RESISTOR

2.7K

060-272-7Z

Q117

TRANSISTOR

 

200-045-3

 

R137

CHIP RESISTOR

2.7K

060-272-7Z

Q118

TRANSISTOR

 

203-043-6Z

 

R138

CHIP RESISTOR

470

060-471-0Z

Q120

TRANSISTOR

 

203-087-6

 

R139

CHIP RESISTOR

22K

060-223-3Z

Q121

TRANSISTOR

 

202-095-8Z

 

R140

CHIP RESISTOR

10

060-100-5Z

Q122

TRANSISTOR

 

203-111-4

 

R141

CHIP RESISTOR

470

060-471-0Z

Q123

TRANSISTOR

 

202-095-8Z

 

R142

CHIP RESISTOR

10K

060-103-8Z

Q124

TRANSISTOR

 

202-113-1

 

R143

CHIP RESISTOR

1.8K

060-182-9Z

Q125

TRANSISTOR

 

202-066-2

 

R144

CHIP RESISTOR

51

060-510-2

Page-40-

December 98

Page 43 Page 45
Image 44
Page 43 Page 45
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 RX Tone Demodulation Characteristics AccessoriesSubaudible tones CTCSS/DCS Reliability AnalysisIntroduction Unpacking Information Check the carton carefully for the following itemsGeneral Description Description of Controls Description of ControlsSM-2000 Rear Panel Theory of Operation Digital CircuitryCTCSS/DCS Decode Circuits CTCSS/DCS Encoder CircuitEeprom PLL RF Section SM-2150/VHF RX VCO TX VCOOut of Lock Detector PrescalerReceiver RF AmplifierReceiver Audio Circuit Low Pass FilterAudio 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 Mute Circuit Squelch Noise Band Pass FilterNoise Detector 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
Top Page Image Contents