Motorola Bpr40 Magone Detailled 6816102h01 A Manual

vii
Operational Cautions
Intrinsically Safe Radio Information
The Intrinsically safe approval unit refers to a product that has been approved as intrinsically safe by 
an approval agency (for example FM Approvals, CSA, UL, or Cenelec) and certifies that a particular 
product meets the Agencys applicable intrinsic safety standards for specific types of hazardous 
classified locations. A portable radio that has been approved for intrinsic safety will have Approval 
label attached to the radio to identify...

viii
A modification changes the units hardware from its original design configuration. Modifications can 
only be made by the original product manufacturer.
Repair
A repair constitutes something done internally to the unit that would bring it back to its original 
condition.
Items not considered as repairs are those in which an action is performed on a unit which does not 
require the outer casing of the unit to be opened in a manner that exposes the internal electrical 
circuits of the unit.
Do Not...

Table of Contents
Document History.............................................................................................. i
Safety Information ........................................................................................... iii
Section 1 INTRODUCTION
1.0 Scope of Manual ....................................................................................................1-1
2.0 Warranty and Service Support...............................................................................1-1...

Section 3 VHF BAND 1 (136–150 MHz) INFORMATION
1.0 RF Circuit Board and Schematic Diagram for VHF Band 1 (136–150 MHz) .........3-2
VHF Band 1 (136–150 MHz) Main Board Top Side ...............................................3-2
VHF Band 1 (136–150 MHz) Main Board Bottom Side .........................................3-3
VHF Band 1 (136–150 MHz) Schematic Diagram .................................................3-4
Section 4 VHF BAND 2 (150–174 MHz) INFORMATION (150–174 MHz)
1.0 RF Circuit Board and...

Scope of Manual1-1
Section 1
INTRODUCTION
1.0 Scope of Manual
This manual is intended for use by service technicians familiar with similar types of equipment. It 
contains service information required for the equipment described and is current as of the printing 
date. Changes which occur after the printing date may be incorporated by a complete Manual 
revision or alternatively as additions.
2.0 Warranty and Service Support
Motorola offers long term support for its products. This support includes full...

1-2Warranty and Service Support
2.2 After Warranty Period
After the Warranty period, Motorola continues to support its products in two ways. 
1. Motorolas Managed Technical Services (MTS) offers a repair service to both end users and 
dealers at competitive prices. 
2. MTS supplies individual parts and modules that can be purchased by dealers who are techni-
cally capable of performing fault analysis and repair.
2.3 Piece Parts
Some replacement parts, spare parts, and/or product information can be...

Radio Model Information1-3
3.0 Radio Model Information
The model number and serial number are located on a label attached to the back of your radio. You 
can determine the RF output power, frequency band, protocols, and physical packages. The 
example below shows one portable radio model number and its specific characteristics.
Table 1-1   Radio Model Number (Example: AZH84KDC8AA3)
Ty pe  
of 
UnitModel 
SeriesFreq. BandPower 
LevelPhysical 
PackagesChannel 
SpacingProtocolFeature 
Level
AZH84J
(136–150...

1-4Radio Features
4.0 Radio Features
The following are features your radio has.
Normal Operation
•Rx/Tx
•Radio-CPS-Radio Cloning
•Radio-to-Radio Cloning
•Factory Reset
•Low Battery Indication
•Self Test
Programming Button
•Hi/Lo Power
•Vo l u m e  S e t
•Monitor
•Sticky Monitor
•Scan Activate
•Nuisance Channel Delete
•Repeater/Talkaround
•PL/DPL
•Button Lock
•Battery Save Mode
•Squelch
•Unassigned
CPS
•Rx Frequency
•Tx Frequency 
•RX TPL/DPL/IDPL
•TX TPL/DPL/IDPL
•User Defined PL (TPL1, TPL2, TPL3)...

Overview2-1
Section 2
THEORY OF OPERATION
1.0 Overview
1.1 Purpose
This section defines the theory of operation (or the Circuit Description) for the radio.  At the same 
time, it provides a description of the circuit theory and analysis of the radio hardware design.
1.2 General Description
The radio comprises of one main PCB. This main PCB contains the RF and digital circuits. The VHF/
UHF compliant handheld transceivers consists of a receiver, a transmitter, a phase-locked loop 
(PLL) frequency...

2-2Receiver System
RF AMP(Q301) before being filtered again by the post-selector before being applied to the mixer. 
The pre-selector and post-selector are band-shift type filters to remove unwanted signals.
2.2 First Mixer
The signal from receiver front-end is channelled into the Mixer (Q302) base to be heterodyned with 
the first local signal generated from the VCO to become the first IF frequency (45.1MHz). This first 
IF frequency is resonated at tank circuit C328, L308 (VHF) or L306 (UHF) and then...