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MCX600E
Motorola MCX600E Manuals
Manuals and User Guides for Motorola MCX600E. We have
1
Motorola MCX600E manual available for free PDF download: Service Manual
Motorola MCX600E Service Manual (105 pages)
Brand:
Motorola
| Category:
Radio
| Size: 1.59 MB
Table of Contents
Chapter 1 Introduction
11
Computer Software Copyrights
2
Exposure to Radio Frequency Energy
3
Mobile Antenna Installation
3
Safety Information
3
Introduction
9
Table of Contents
11
After Warranty Period
13
How to Use this Manual
13
Scope of Manual
13
Warranty and Service Support
13
Warranty Period
13
Piece Parts
14
Specifications
15
Model Chart
19
Chapter 3 Maintenance
21
Remove the Top Cover
24
Assemble Radio
25
Replace the Top Cover and Control Head
25
Exploded View Diagrams and Parts
26
Service Aids
27
Test Equipment
28
Radio Tuning Procedure
29
PA Bias Voltage
30
Transmitter Power
31
Reference Oscillator
32
Speakers
33
Transmit Voltage Limit
34
Transmit Deviation Limit
35
Chapter 4 Theory of Operation
37
Cables
39
Voltage Regulators
39
Electronic On/Off
40
Hook Rss
41
Mechanical On/Off
41
Microprocessor Clock Synthesizer
42
Serial Peripheral Interface (Spi)
42
General Purpose Input/Output
43
Normal Microprocessor Operation
43
Other
43
Speb Serial Interface
43
Electrically Erasable Programmable Memory (Eeprom)
45
Flash Eeprom
45
Flash Electronically Erasable Programmable Memory
45
Static Random Access Memory (Sram)
46
Audio Ground
47
Audio Signalling Filter IC (Asfic)
47
Controller Board Audio and Signalling Circuits
47
MIC Input Path
47
Transmit Audio Circuits
47
External MIC Path
48
Ptt Sensing and Tx Audio Processing
49
Transmit Signalling Circuits
49
Dual Tone Multiple Frequency (Dtmf) Data
50
High Speed Data
50
Sub-Audible Data (Pl/Dpl)
50
Receive Audio Circuits
51
Squelch Detect
51
Audio Processing and Digital Volume Control
52
Filtered Audio
53
Receive Signalling Circuits
53
Alert Tone Circuits
54
Sub-Audible Data (Pl/Dpl) and High Speed Data Decoder
54
Mhz Specific Circuit Description
55
Mixer and Intermediate Frequency (If) Section
55
Receiver Front-End
55
If IC (U)
56
Power Controlled Stage
56
Transmitter Power Amplifier (Pa) 5-25W
56
Antenna Switch
57
Directional Coupler
57
Pa Stages
57
Harmonic Filter
58
Power Control
58
Fractional-N Synthesizer (U)
59
Frequency Synthesis
59
Synthesizer Operation
60
Voltage Controlled Oscillator (Vco)
60
Chapter 5 Pcb/Schematic Diagrams and Parts Lists
63
Mhz Main Board Component Side
65
Controller Parts List
68
Supply Voltage Parts List
72
Power Control Parts List
74
Mhz Synthesizer Schematic Diagram
77
Synthesizer Parts List
78
Mhz Rx-Fe Schematic Diagram
81
Rx-Fe Parts List
82
Mhz Rx-If Schematic Diagram
83
Rx-If Parts List
84
Appendix B.1
91
General
93
Overview
93
Power Supplies
93
Theory of Operation
93
ON/OFF Hook Control
94
Power on / off
94
PTT Button
94
Keypad and Top Keys
95
Status LED and Back Light Circuit
95
Connections to the Radio
96
Liquid Crystal Display (LCD)
96
Microphone Amplifier
96
Electrostatic Transient Protection
97
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