User GuideTable of ContentsINSTALLATION PREPARATION2Parts Supplied2Accessories2Installation Overview2Alternative Transducers and Mounting Methods4Transducer Exchange5INSTALLATION6Transom Installation6Inside the Hull Installation10Control Head Installation12Test the Installation15INTRODUCTION16USING THE LCR 400019Total Screen Update19Operational Instructions21Learning to Use Your LCR29Learning to Read the Display31MAINTENANCE AND WARRANTY34Maintenance34Troubleshooting35Warranty38Service Policy39Customer Support40Size: 823 KBPages: 38Language: EnglishOpen manual