Motorola 6816101H01-A service manual Radio Tuning, Introduction

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3-1

Section 3

RADIO TUNING

1.0Introduction

This chapter provides an overview of the hardware tuning for this Mag One™ Series radio. There is no software tuning required.

In order to perform the manual tuning procedures, the radio needs to be disassembled to the PC Board.

Following are the parameters that can be tuned:-

1.Transmitter Tuning

a.High Power Tuning

b.Low Power Tuning

c.Frequency Tuning

d.Modulation Balancing

e.Maximum Modulation

f.Subtone Modulation

2.Receiver Tuning

a.Wide Band Sinad Tuning

b.Narrow Band Sinad Tuning

3.PLL Synthesizer Tuning

a.Rx PLL Frequency Tuning

b.Tx PLL Frequency Tuning

For a list of Service Aids required, refer to Table 2-2 on page 2-16Parts ListParts List

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Contents Mag One by Motorola Radio Series Computer Software Copyrights Document History Page Federal Communication Commission FCC Regulations Safety InformationGuidelines Compliance with RF Exposure StandardsElectromagnetic Interference/Compatibility Use of communication devices while driving Operational WarningsHearing Aids Other Medical DevicesOperational Cautions for Intrinsic Safe Equipment Operational CautionsIntrinsically Safe Radio Information Repair Do Not Substitute Options or AccessoriesTable of Contents Glossary of Terms Radio ProgrammingScope of Manual Warranty and Service SupportWarranty Period and Return Instructions IntroductionFurther Assistance From Motorola After Warranty PeriodPiece Parts Technical SupportUnit Level Radio Model InformationCPS Radio FeaturesIntroduction MaintenancePreventive Maintenance Cleaning ProceduresSafe Handling of Cmos and Ldmos Devices Repair Procedures and Techniques General Disassembling and Reassembling the Radio General Front Cover from Chassis Disassembly Radio Disassembly DetailedRadio Disassembly Detailed Speaker Wire Radio Disassembly Detailed PC Board Reassembly Radio Reassembly DetailedPC Board Disassembly Chassis and Front Cover Reassembly Radio Reassembly Detailed Speaker Connector Part Name Qty Mechanical View and Parts ListExploded View and Parts List ReferenceReference Part Name Qty Reference Part Name Qty PMUD2221A PMNN4071RCDescription Application Service AidsMotorola Part Programming Cable PMDN4043R Motorola Description Characteristics ApplicationTest Equipment Test Box PMDN4040R Cloning Cable PMDN4060R otesRadio Tuning Tuning Frequency Hardware Tuning Setup and ProcedureGround Contact Finger R425 R426 R216 FL701 R215 TP1 Subtone Level 42 ± 0.02kHz 96 ± 0.02kHz R425 R426 C722 Page Programming Your Radio Radio ProgrammingKit Number CPS ProgrammingCPS Programming Setup Factory ResetFactory Reset Accessories Publications Audio AccessoriesService Kits LAH84JDC8AA4AN Model Chart and Test SpecificationVHF Band 1 Information 136-150 MHz A8 136-150 MHz VHF Model DescriptionReceiver SpecificationsGeneral TransmitterLAH84KDC8AA4AN VHF Band 2 Information 150 174 MHz A8 150-174 MHz VHFSpecifications LAH84QCC8AA4AN UHF Band 1 Information 403-425MHz A8 403-425 MHz UHFUHF UHF Band 2 Information 450 470MHz A8 450-470 MHz UHF Specifications PMAE4028A UHF Band 4 Information 490 512 MHz A8 490-512 MHz UHFLAH84TCC8AA4AN Specifications PLL ResetGlossary of Terms Term DefinitionVHF ROMTPL UHF