Uniden PC68LTX Owners Manual - Page 11

PREVENTIVE MAINTENANCE Every six months: • Check the Standing Wave Ratio (SWR). • Be sure all electrical connections are tight. • Inspect antenna coaxial cable for wear or breaks in shielding. • Be sure all screws and mounting hardware are tight. The PC68LTX is designed to give you years of trouble-free service. There are no user-serviceable parts inside. Except for the fuse in the DC power cord, no maintenance is required. To replace a blown fuse: 1. Press ends of the fuse holder together. Twist to open. Carefully separate the two pieces. 2. Remove the fuse and inspect. If blown, replace with the same type fuse. Use only the fuse specified for your PC68LTX. Failure to do so may void your warranty. TROUBLESHOOTING In the event of system malfunction, perform the following procedures: Problem Unit does not power up No reception Suggestion Check ignition key position. Check power cord connections. Check fuse. Check vehicle electrical system. Check microphone connection. Set CB/PA to CB. Check VOLUME and SQUELCH. Check antenna. Check antenna connection. Adjust RF Gain. Poor Reception No Transmission Check VOL and SQ. Adjust RF Gain. Be sure antenna SWR is normal. Set CB/PA switch to CB. Check microphone connection. Adjust MIC Gain. 11