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GM340
Motorola GM340 Manuals
Manuals and User Guides for Motorola GM340. We have
4
Motorola GM340 manuals available for free PDF download: Service Information, User Manual
Motorola GM340 Service Information (32 pages)
GM Series Professional Radio
Brand:
Motorola
| Category:
Radio
| Size: 1.16 MB
Table of Contents
Computer Software Copyrights
2
Table of Contents
3
Chapter 1 MODEL OVERVIEW
5
GM140/GM340/GM640 Models
5
GM160/GM360/GM660 Models
5
GM380/GM1280 Models
6
Chapter 2 THEORY of OPERATION
7
Introduction
7
Controlhead Model for GM140, GM340 and GM640
7
Power Supplies
7
Power on / off
7
Microprocessor Circuit
7
SBEP Serial Interface
8
Keypad Keys
8
Status LED and Back Light Circuit
9
Microphone Connector Signals
9
Speaker
10
Electrostatic Transient Protection
10
Controlhead Model for GM160, GM360 and GM660
10
Power Supplies
10
Power on / off
10
Microprocessor Circuit
11
SBEP Serial Interface
11
Keypad Keys
12
Status LED and Back Light Circuit
12
Liquid Crystal Display (LCD)
12
Microphone Connector Signals
13
Speaker
14
Electrostatic Transient Protection
14
Controlhead Model for GM380 and GM1280
14
Power Supplies
14
Voltage Regulator Circuit
14
Power on / off
15
Microprocessor Circuit
15
SBEP Serial Interface
15
Keypad Keys
16
Status LED and Back Light Circuit
16
Liquid Crystal Display (LCD)
17
Microphone Connector Signals
17
Speaker
18
Electrostatic Transient Protection
18
Chapter 3 TROUBLESHOOTING CHARTS
19
On/Off
19
Microprocessor
20
Display
23
Backlight
24
On/Off
25
Microprocessor
26
Display
28
Keypad Backlight
29
Display Backlight
30
Chapter 4 CONTROLHEAD PCB/SCHEMATICS/PARTS LISTS
31
Allocation of Schematics and Circuit Boards
31
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Motorola GM340 Service Information (34 pages)
GM Series Professional Radio VHF (136-174MHz)
Brand:
Motorola
| Category:
Radio
| Size: 0.11 MB
Table of Contents
Computer Software Copyrights
2
Table of Contents
3
Chapter 1 MODEL CHART and TECHNICAL SPECIFICATIONS
5
GM140/GM160 Model Chart
5
GM340/GM360/GM380 Model Chart
6
GM640/GM660/GM1280 Model Chart
7
Technical Specifications
8
Chapter 2 THEORY of OPERATION
11
Introduction
11
VHF (136-174Mhz) Receiver
11
Receiver Front-End
11
Front-End Band-Pass Filters & Pre-Amplifier
12
First Mixer and High Intermediate Frequency (IF)
12
Low Intermediate Frequency (IF) and Receiver Back End
12
VHF (136-174Mhz) Transmitter Power Amplifier (PA) 25 W
13
First Power Controlled Stage
13
Power Controlled Driver Stage
14
Final Stage
14
Directional Coupler
14
Antenna Switch
15
Harmonic Filter
15
Power Control
15
VHF (136-174Mhz) Frequency Synthesis
16
Reference Oscillator
16
Fractional-N Synthesizer
16
Voltage Controlled Oscillator (VCO)
17
Synthesizer Operation
18
VHF (136-174Mhz) Transmitter Power Amplifier (PA) 45 W
19
Power Controlled Stage
19
Pre-Driver Stage
20
Driver Stage
20
Final Stage
20
Directional Coupler
20
Antenna Switch
21
Harmonic Filter
21
Power Control
21
Chapter 3 TROUBLESHOOTING CHARTS
23
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)
23
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)
24
Troubleshooting Flow Chart for 25W Transmitter (Sheet 1 of 3)
25
Troubleshooting Flow Chart for 25W Transmitter (Sheet 2 of 3)
26
Troubleshooting Flow Chart for 25W Transmitter (Sheet 3 of 3)
27
Troubleshooting Flow Chart for 45W Transmitter (Sheet 1 of 2)
28
Troubleshooting Flow Chart for 45W Transmitter (Sheet 2 of 2)
28
Troubleshooting Flow Chart for Synthesizer
30
Troubleshooting Flow Chart for VCO
31
Chapter 4 VHF PCB/SCHEMATICS/PARTS LISTS
33
Allocation of Schematics and Circuit Boards
33
Controller Circuits
33
Motorola GM340 Service Information (32 pages)
GM series Professional Radio UHF (403-470MHz)
Brand:
Motorola
| Category:
Radio
| Size: 0.24 MB
Table of Contents
Computer Software Copyrights
2
Table of Contents
3
Chapter 1 MODEL CHART and TECHNICAL SPECIFICATIONS
5
GM140/GM160 Model Chart
5
GM340/GM360/GM380 Model Chart
6
GM640/GM660/GM1280 Model Chart
7
Technical Specifications
8
Chapter 2 THEORY of OPERATION
11
Introduction
11
UHF (403-470Mhz) Receiver
11
Receiver Front-End
11
Front-End Band-Pass Filters & Pre-Amplifier
12
First Mixer and High Intermediate Frequency (IF)
12
Low Intermediate Frequency (IF) and Receiver Back End
12
UHF (403-470Mhz) Transmitter Power Amplifier (PA) 25 W
13
First Power Controlled Stage
13
Power Controlled Driver Stage
14
Final Stage
14
Directional Coupler
14
Antenna Switch
15
Harmonic Filter
15
Power Control
15
UHF (403-470Mhz) Frequency Synthesis
16
Reference Oscillator
16
Fractional-N Synthesizer
16
Voltage Controlled Oscillator (VCO)
17
Synthesizer Operation
18
Power Controlled Stage
19
Pre-Driver Stage
19
Driver Stage
20
Final Stage
20
Directional Coupler
20
Antenna Switch
20
Harmonic Filter
20
Power Control
21
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)
23
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)
24
Troubleshooting Flow Chart for 25W Transmitter (Sheet 1 of 3)
25
Troubleshooting Flow Chart for 25W Transmitter (Sheet 2 of 3)
26
Troubleshooting Flow Chart for 25W Transmitter (Sheet 3 of 3)
27
Chapter 3 Troubleshooting Charts
28
Troubleshooting Flow Chart for Synthesizer
29
Troubleshooting Flow Chart for VCO
30
Troubleshooting Flow Chart for 40W Transmitter
28
Chapter 4 UHF PCB/SCHEMATICS/PARTS LISTS
31
Allocation of Schematics and Circuit Boards
31
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Motorola GM340 User Manual (32 pages)
Professional Radio
Brand:
Motorola
| Category:
Radio
| Size: 0.22 MB
Table of Contents
Product View
2
Table of Contents
3
Radio Overview
5
Radio Controls
5
Programmable Buttons
6
Audio Signal Tones
9
Getting Started
11
Turning the Radio On-Off
11
Radio on Indication
11
Adjusting the Radio's Volume
11
Selecting a Radio Channel
11
Sending a Call
12
Receiving a Call
12
Cancelling a Call
12
Ending a Call
12
Radio Calls
13
Selective Calls
13
Making a Selective Call
13
Receiving a Selective Call
13
Emergency Calls
14
Features
15
Public Address Mode
15
Car Radio Mute
16
Utilities
17
Voice Recorder
18
Scan
19
Call Forward
21
Talkaround
22
External Alarm
23
Lone Worker
24
Power Level
25
Companding
26
Option Board
27
Voice Operated Transmit (VOX)
28
Stun/Unstun
28
Safety Information
29
Safe and Efficient Operation
29
Exposure to Radio Frequency Energy
29
Electromagnetic Interference/Compatibility
30
Operational Warnings
30
Potentially Explosive Atmospheres
30
Blasting Caps and Areas
30
Radio Operation and EME Exposure
31
Mobile Antenna Installation
31
Control Station Operation
31
General Radio Care
32
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