## How to Diagnose the Trouble Related to the Radio

### How to diagnose the trouble when you can't receive any radio station, or at the extremely poor of the radio sensitivity

NOTE: Be the place where there is no obstacle in the neighborhood, and check it in the open air.

1. | Confirm the receiving conditions of the radio. Do you receive each broadcasting station normally? YES - Radio operation is normal.n NO - Go to 2.

2. | Confirm whether the antenna jack is inserted in the audio unit. Is an antenna jack being inserted into the audio unit completely? YES - Go to 3. NO - An antenna jack is inserted in the audio unit completely again.n

3. | Check for continuity between the antenna jack and the roof antenna. Is there continuity? YES - Go to 4. NO - Replace the roof antenna.n

4. | Check for continuity between signal live centering signal line and the antenna jack outside of ground terminal. Is there continuity? YES - Replace the roof antenna.n NO - Replace the audio unit.n

### How to diagnose the trouble which noise appears in when it is listening to the radio

NOTE: Be the place where there is no obstacle in the neighborhood, and check it in the open air.

1. | Confirm the noise conditions of the radio. Does the noise intercept any place, any time? YES - Go to 2. NO - Radio operation is normal.n

2. | Confirm whether the noise of the radio influenced by electric wave or not. Does it seem to be influenced by the electric wave? YES - Radio operation is normal.n NO - Replace the audio unit.n