Cobra 19 MINI AMFM 19 MINI Manual - English - Page 9

Troubleshooting Troubleshooting & Maintenance/Adjustment Ignition Noise Interference • Use of a CB receiver at low signal levels is normally limited by the presence of electrical noise. Under most operating conditions, when signal level is adequate, the background noise does not present a serious problem. Also, when extremely low level signals are being received, the transceiver may be operated with vehicle engine turned off. The unit requires very little current and therefore will not significantly discharge the vehicle battery. Even though this radio has an automatic noise limiter, in some installations ignition interference may be high enough to make good communications impossible. Consult your authorized Cobra dealer or a two-way radio technician for help in locating and correcting the source of severe noise. Maintenance/Adjustment • Your Cobra CB transceiver is specifically designed for the environment encountered in mobile installations. The use of all solid state circuitry and its light weight result in high reliability. Should a failure occur, however, review the following, then if necessary, replace parts only with identical parts. Do not substitute. Check Power Source 1. Check connections to the source of power and make sure it is the 13.8 VDC required to operate your radio. Maintainance/Adjustment Check Microphone Connection Troubleshooting & Maintenance/Adjustment 3. Make certain the microphone is properly plugged in. ChEecnkgAlinsthenna Connection Main Icons 4. Make certain the antenna is properly assembled and connected. If you are unable to correct the problem, refer to product service on page 14 for the correct procedure for warranty and post-warranty service from Cobra. Check Fuses in DC Power Cord 2. Check the fuses in the DC power cord. The main power lead (red) has a two amp 3AG type fuse in its holder. Use only the above specified type and size fuse for maximum protection. Failure to do so will void the warranty. 12 English 13