Kenwood KAC-648 User Manual - Page 11

Troubleshooting Guide What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following table for possible problems. PROBLEM POSSIBLE CAUSE SOLUTION No sound. (No sound from one side.) • Input (or output) cables are • Connect the input (or output) disconnected. cables. • Protection circuit may be • Check connections by referring activated. to "Protection function". • The fuse may be blown because • Replace the fuse with a new the volume was too high. fuse and use a lower volume. The output level is too small (or too large). The input sensitivity adjusting control is not set to the correct position. Adjust the control correctly referring to "Controls". The sound quality is bad. (The sound is distorted.) • The speakers cable are connected with wrong + / polarity. • A speaker cable is pinched by a screw in the car body. • The switches may be set improperly. • Connect them properly checking the + / - of the terminals and cables well. • Connect the speaker cable again so that it is not pinched by anything. • Set switches properly by referring to "System examples". 11