Maxon SP-300 Series Two-Way Radio Manuals

Maxon SP-300 Series Two-Way Radio Manuals

Manuals and User Guides for Maxon SP-300 Series Two-Way Radio. We have 1 Maxon SP-300 Series Two-Way Radio manual available for free PDF download: Service Manual

Maxon SP-300 Series Service Manual

Maxon SP-300 Series Service Manual (52 pages)

Midland Radio SERVICE MANUAL SP-300 Radio Receiver

Brand: Maxon | Category: Two-Way Radio | Size: 3 MB

Table of Contents

Table of Contents
2
Temperature Range
4
Current Consumption
4
Specifications
4
- Frequency Bands
  5
- Main Features
  8
Introduction
8
Features
8
- Busy Channel Lockout
  9
- Low Battery Indication
  10
- Memory Protect
  10
Description of Controls
11
Theory of Operation
12
- Digital Circuits
  12
- Rf Circuits
  13
- Antenna Switch
  13
- Rf Circuits Pll Synthesizer
  14
- Receiver
  14
  - Front End
    14
  - Noise Detector
    15
  - Low Pass Filter
    15
Maintenance and Repair
16
Component Replacement
22
Surface Mount Component Replacement
23
Programming
24
Alignment Procedure
24
Test Equipment Setup
26
Alignment Points Diagram
27
- Troubleshooting Guide
  28
- Control Circuit
  29
- Main Circuit
  29
Voltage Charts
29
- Receive State
  30
- Transmit State
  31
Sp-300 Series Uhf & Vhf Digital Section Parts List
32
Sp-300 Series Vhf Rf Section Parts List
34
Sp-300 Series Uhf Rf Section Parts List
37
Component Pinout
41
Schematics & Block Diagram
44
- Vhf Front-End
  44
- Vhf Power Amp
  44
- Uhf Power Amp
  44
- Uhf Front-End
  44
- Vhf V.C.o
  45
- Uhf V.C.o
  45
- P.t.t
  46
- Tcxo
  46
- Acc-200 Battery
  46
- Fuse
  46
- Digital Schematic
  47
- VHF RF Schematic
  48
- UHF RF Schematic
  49
- Block Diagram
  50
Pcb Layouts
51

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