Motorola Vhf 136 174 Mhz Uhf 435 480 Mhz 6881096c38 Manual

Table of Contentsv
6881096C38March, 2006
7.3.4 CPU / Control Section....................................................................................................... 7-5
7.3.5 VCO / Synthesizer Section ............................................................................................... 7-5
7.3.6 Transmitter Section........................................................................................................... 7-6
7.3.7 Power Control...

viTable of Contents
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8.4.5 Receiver .......................................................................................................................... 8-11
8.5 Troubleshooting Charts................................................................................................................ 8-12
8.6 UHF 435-480 MHz Circuit Board/Schematic Diagrams and Parts List ........................................ 8-17
UHF 435-480 MHz Controller Board (K305E501-01)...

6881096C38March, 2006
User Safety, Training, and General Information
Product Safety and RF Exposure Compliance
ATTENTION!
This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. Before 
using this product, read the RF energy awareness information and operating instructions in the Product 
Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part number 68P81095C98) 
to ensure compliance with RF energy exposure limits.
CAUTION:Before using...

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viiiUser Safety, Training, and General Information: Product Safety and RF Exposure Compliance 

Chapter 1 Introduction
1.1 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.
1.2 Warranty
Motorola offers long term support for its products. This support includes full exchange and/or repair of 
the product...

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1-2Introduction: Replacement Parts Ordering
1.3.2 Motorola Online
Motorola online users can access our on-line catalog at:
HTTPS://WWW.motorola.com/businessonline
To register for online access, please call 800-814-0601 (for U.S. and Canada Service Centers only).
1.3.3 Mail Orders
Send written orders to the following addresses:
1.3.4 Telephone Orders
Radio Products and Services Division (RPSD)*
(United States and Canada)
7:00 AM to 7:00 PM (Central Standard Time)
Monday through...

6881096C38March, 2006
Introduction: Technical Support1-3
1.3.7 Product Customer Service
Customer Response Center
(Non-technical Issues)
1-800-247-2346
FAX: 1-800-247-2347
1.4 Technical Support
Technical support is available to assist the dealer/distributor in resolving any malfunction which may 
be encountered. Initial contact should be by telephone wherever possible. When contacting Motorola 
Technical Support (Customer Resources), be prepared to provide the product model number and the 
unit’s serial...

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1-4Introduction: Radio Model Information
1.5 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: AAH49KDF8AA1A_)
Ty p e  
of 
UnitModel 
SeriesFrequency
BandPower 
LevelPhysical 
PackagesChannel...

Radio Features1-5
6881096C38March, 2006
1.6 Radio Features
CPS = Customer Programming Software 
(for Reseller)
FeatureBusiness 
Portable
CPSFront 
Panel
Factory ResetX
Radio Information
X
Radio Configuration
Scan Interval TimerX
Scan Hang Timer
X
Alert Tone
XX
Backlight Status
XX
Battery Saver
XX
Battery Type
XX
Time Out Timer
XX
Prime (Home) Ch
XX
Prime Ch Return Hang Time
X
Squelch Level
XX
Tx Repeater Hang Time
X
VOX Parameter1
X
VOX Parameter2
X
Reverse Burst Phase
X
Offset Freq
X
Special (Non...

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1-6Introduction: Radio Features