Uniden UH400SX-RM, UH500SX-RM owner manual Preventive Maintenance, Troubleshooting

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UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM

Introduction

Preventive Maintenance:

The following system checks should be made every six to twelve months:

•Check the Standing Wave Ratio (SWR).

•Inspect the tightness of all electrical connections.

•Inspect the antenna coaxial cable for wear or breaks on the shielding.

•Inspect the tightness of all screws and other mounting hardware.

Troubleshooting:

Should the unit malfunction or perform poorly, follow these procedures:

If the transceiver is completely inoperative: Check the power cord and fuse.

If there is trouble with receiving: Check the VOLUME control setting. Be sure the SQUELCH is adjusted properly. Possibly the radio is over-squelched.

If there is trouble with transmitting: Check that the transmission line (coaxial cable) is securely connected to the ANTENNA connector. Check that the antenna is fully extended for proper operation. Check that all transmission line (coaxial cable) connections are secure and free of corrosion.

Blackening may occur on the Liquid Crystal Display if the UHF CB Radio or Remote SPK/MIC has been subjected to extreme high temperature (above 60°C). This is not a fault. Normal LCD operation resumes when the temperature stabilizes back to standard operating condition (0-55°C).

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Contents OWNER’SI Manual Uh400sx, uh500sx, uh400sx-RM, uhII 08 13121 PM Contents Uh400sx, uh500sx, uh400sx-RM, uhSec12 Sec12 08 13121 PM Features IntroductionPreventive Maintenance TroubleshootingControls/Connectors Connectors Remote LCD Speaker Microphone Remote SPK/MIC Microphone SpeakerStandard Microphone Controls and Connectors MicrophoneIndicators Signal Power LevelIncluded with your UHF CB Radio UH500SX-RMOptional Accessories Optional AccessoriesDIN-E Installation UH500SX, UH500SX-RM Only Mounting Using the DIN-E SleeveRemoving the UH500SX from the DIN-E Sleeve Connecting the Microphone Disconnecting the MIC from the Front MIC JackMounting the MIC Hanger Conventional Mounting with ScrewsConventional Mounting with Double Sided Tape not supplied MIC Hanger mounted over MIC Cable Turning on the Power Setting the Manual Squelch base onlyOperation Setting the Auto Squelch Monitor Selecting a ChannelTransmitting Programming the Instant Priority ChannelPTT Recalling the Instant Channel Call FunctionUsing Repeater Channels Operating the UHF CB Radio in Duplex Mode ScanningOpen Scan OS Mode Group Scan GS ModePriority Watch Add/Remove Channels from Scan MemoryRX Channels Manual ProgrammingDeleting a programmed RX Channel frequency Selecting the Call tone Roger BeepBusy Channel Lockout VOX Operation optional VOX headset requiredCtcss Continuous Tone Coded Squelch System DCS Digitally Coded SquelchBeep On/Off Back LightLCD Contrast for Remote SPK/MIC UHF CB Channels & Frequencies Ctcss & DCS Code List Warranty Uniden UH400SX, UH400SX-RM, UH500SXUniden Australia Pty Limited/Uniden New Zealand Limited