Motorola 6816101H01-A service manual TP1

Page 39

Hardware Tuning Setup and Procedure

3-5

R159	TP1

R174

R172

Figure 3-3 Top Side of PCB

5.Using the ceramic tool, adjust R174 (refer to Figure 3-3) to modulation balance as per Figure 3-4.

Figure 3-4

Improperly tuned modulation balance can cause errors in Tx sub-tone modulation.

Image 39

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 Intrinsically Safe Radio InformationOperational Cautions for Intrinsic Safe Equipment 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 Radio Disassembly Detailed Radio Disassembly DetailedFront Cover from Chassis Disassembly Speaker Wire Radio Disassembly Detailed Radio Reassembly Detailed PC Board DisassemblyPC Board Reassembly 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 PMNN4071RCService Aids Motorola PartDescription Application Motorola Description Characteristics Application Test EquipmentProgramming Cable PMDN4043R 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 Audio Accessories Service KitsPublications 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 UHF Band 4 Information 490 512 MHz A8 490-512 MHz UHF LAH84TCC8AA4ANPMAE4028A Specifications PLL ResetGlossary of Terms Term DefinitionVHF ROMTPL UHF