Motorola MagOne Service Manual

Mag One™ by Motorola Radio SeriesDetailed Service Manual6816102H01-A

viPersons with pacemakers should:• ALWAYS keep the radio more than 6 inches (15 centimeters) from their pacemaker when the radio is turned ON.• Not ca

viiOperational CautionsIntrinsically Safe Radio InformationThe Intrinsically safe approval unit refers to a product that has been approved as intrinsi

viiiA modification changes the unit's hardware from its original design configuration. Modifications can only be made by the original product man

Table of ContentsDocument History...iSafety Information ...

Section 3 VHF BAND 1 (136–150 MHz) INFORMATION1.0 RF Circuit Board and Schematic Diagram for VHF Band 1 (136–150 MHz) ...3-2VHF Band 1 (136–150

Scope of Manual 1-1Section 1INTRODUCTION1.0 Scope of ManualThis manual is intended for use by service technicians familiar with similar types of equip

1-2 Warranty and Service Support2.2 After Warranty PeriodAfter the Warranty period, Motorola continues to support its products in two ways. 1. Motorol

Radio Model Information 1-33.0 Radio Model InformationThe model number and serial number are located on a label attached to the back of your radio. Yo

1-4 Radio Features4.0 Radio FeaturesThe following are features your radio has.Normal Operation• Rx/Tx• Radio-CPS-Radio Cloning• Radio-to-Radio Cloning

Overview 2-1Section 2THEORY OF OPERATION1.0 Overview1.1 PurposeThis section defines the theory of operation (or the Circuit Description) for the radio

Computer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor

2-2 Receiver SystemRF AMP(Q301) before being filtered again by the post-selector before being applied to the mixer. The pre-selector and post-selector

Transmitter System and PLL Synthesizer 2-33.0 Transmitter System and PLL SynthesizerThe transmitter consists of: Microphone, Pre-emphasis, Modulator,

2-4 Transmitter System and PLL Synthesizer3.4 Auto-Power ControlThe Auto-Power Control (APC) keeps the current constant to the final amplifier (Q403).

Audio and Control Circuit 2-53.5.3 Dual VCOThe dual VCO module contains an RX VCO and a TX VCO. They are configured as Colpits oscillators and connect

2-6 Audio and Control Circuit4.2 RX Sub-Audible Decode CircuitThe filter U202 is a 260Hz 8 order LPF to pass CTCSS, DCS signals and to block any other

3-1Section 3VHF BAND 1 (136–150 MHZ) INFORMATION

3-2 RF Circuit Board and Schematic Diagram for VHF Band 1 (136–150 MHz)1.0 RF Circuit Board and Schematic Diagram for VHF Band 1 (136–150 MHz)VHF Band

RF Circuit Board and Schematic Diagram for VHF Band 1 (136–150 MHz) 3-3VHF Band 1 (136–150 MHz) Main Board Bottom Side

3-4 RF Circuit Board and Schematic Diagram for VHF Band 1 (136–150 MHz)VHF Band 1 (136–150 MHz) Schematic Diagram

4-1Section 4VHF BAND 2 (150–174 MHZ) INFORMATION (150–174 MHZ)

Technical Information UpdatesAs we continue to make engineering enhancements to our products, the information in our Service Manuals need to be update

4-2 RF Circuit Board and Schematic Diagram for VHF Band 2 (150–174 MHz)1.0 RF Circuit Board and Schematic Diagram for VHF Band 2 (150–174 MHz)VHF Band

RF Circuit Board and Schematic Diagram for VHF Band 2 (150–174 MHz) 4-3VHF Band 2 (150–174 MHz) Main Board Bottom Side

4-4 RF Circuit Board and Schematic Diagram for VHF Band 2 (150–174 MHz)VHF Band 2 (150–174MHz) Schematic Diagram

5-1Section 5UHF BAND 1 (403–425 MHZ) INFORMATION

5-2 RF Circuit Board and Schematic Diagram for UHF Band 1 (403–425 MHz)1.0 RF Circuit Board and Schematic Diagram for UHF Band 1 (403–425 MHz) UHF Ban

RF Circuit Board and Schematic Diagram for UHF Band 1 (403–425 MHz) 5-3UHF Band 1 (403–425 MHz) Main Board Bottom Side

5-4 RF Circuit Board and Schematic Diagram for UHF Band 1 (403–425 MHz)UHF Band 1 (403–425 MHz) Schematic Diagram

6-1Section 6UHF BAND 2 (450–470 MHZ) INFORMATION

6-2 RF Circuit Board and Schematic Diagram for UHF Band 2 (450–470 MHz)1.0 RF Circuit Board and Schematic Diagram for UHF Band 2 (450–470 MHz)UHF Band

RF Circuit Board and Schematic Diagram for UHF Band 2 (450–470 MHz) 6-3UHF Band 2 (450–470 MHz) Main Board Bottom Side

Service Manual Feedback FormWe believe that reports from users provide valuable information for producing quality manuals. Kindly take a few moments t

6-4 RF Circuit Board and Schematic Diagram for UHF Band 2 (450–470 MHz)UHF Band 2 (450–470 MHz) Schematic Diagram

7-1Section 7UHF BAND 4 (490–512 MHZ) INFORMATION

7-2 RF Circuit Board and Schematic Diagram for UHF Band 4 (490–512 MHz)1.0 RF Circuit Board and Schematic Diagram for UHF Band 4 (490–512 MHz)UHF Band

RF Circuit Board and Schematic Diagram for UHF Band 4 (490–512 MHz) 7-3UHF Band 4 (490–512 MHz) Main Board Bottom Side

7-4 RF Circuit Board and Schematic Diagram for UHF Band 4 (490–512 MHz)UHF Band 4 (490–512 MHz) Schematic Diagram

© 2007 by Motorola, Inc. All rights reserved. Motorola Technology Sdn. Bhd. (Co. No. 455657-H) Plot 2, Bayan Lepas Technoplex Industrial Park Mukim 12

iDOCUMENT HISTORYThe following major changes have been implemented in this manual since the previous edition:Edition Description Date6816102H01-A Init

iiNotes

iiiSafety InformationProduct Safety and RF Energy Exposure Booklet for Portable Two-Way RadiosThe information provided in this document supersedes the

ivExposure awareness can be facilitated by the use of a product label directing users to specific user awareness information. Your Motorola two-way ra

vOperating Instructions• Transmit no more than the rated duty factor of 50% of the time. To transmit (talk), push the Push-To-Talk (PTT) button. To re