Jensen JHD3510 Operation Manual - Page 14

.~ .JHD3510 Ill'AVYDUrY CARE AND MAINTENANCE 'lROUBLESHOOTING Keep the product dry. If it does get wet. wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits. Keep the product away from dust and dirt, which can cause premature wear of parts. Handle the product gently and carefully. Dropping it can damage circuit boards and cases, and can cause the product to work improperly. Wipe the product with a dampened cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the product Use and store the product only in normal temperature environments. High temperature can shorten the life of electronic devices, damage batteries, and distort or melt plastic parts. Ignition The most common source of noise in reception is the ignition system This is a result of the radio being placed close to the ignition system (engine). This type of noise can be easily detected because it will vary in intensity of pitch with the speed of the engine. Usually, the ignition noise can be suppressed considerably by using a radio suppression type high voltage ignition wire and suppressor resistor in the ignition system. (Most vehicles employ this wire and resistor but it may be necessary to check them for correct operation.) Another method of suppression is the use of additional noise suppressors. These can be obtained from most professional mobile electronics retailers. Interference Radio reception in a moving environment is very different from reception in a stationary environment (home). It is very important to understand the difference. AM reception will deteriorate when passing under a bridge or when passing under high voltage lines. Although AM is subject to environmental noise, it has the ability to received at great distance. This is because broadcasting signals follow the curvature of the earth and are reflected back by the upper atmosphere. Symptom Cause Solution No power The vehicle's accessory switch is not on Disc cannot be loaded or ejected The fuse is blown Presence of CD disc inside the player If the power supply is properly connected to the vehicle's accessory terminal, switch the ignition key to "ACC" or "Run" Replace the fuse Remove the disc in the player and insert the new one Inserting the disc in reverse direction If disc will not eject, press the RESET button Insert the compact disc with the label facing upward No sound The operation keys do not work Sound skips Cannot tune to radio station, auto-seek does not work Compact disc is extremely dirty or disc is defective Condensation Volume is too low or system is muted Wiring is not properly connected The built-in microcomputer is not operating properly due to noise The installation angle is more than 30 degrees The disc is dirty or defective. The antenna cable is not connected The signals are too weak Clean the disc or try to playa new one Leave the player off for an hour or so, then try again Adjust volume to audible level Check wiring connections Press the RESET button Adjust the installation angle to less than 30 degrees Clean the disc and try to play again or use new disc Check antenna cable Select a station manually 12