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 |
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The power does not turn on. | The fuse has blown. | After checking for short circuits in the cables, replace the |
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| fuse with one having the same rating. |
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| No ACC position on vehicle ignition. | Connect the same cable to the ignition as the battery cable. |
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No sound can be heard, or the | The Attenuator function is turned on. | Turn off the Attenuator function. |
volume is low. |
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The fader and/or balance settings are set all the way to one side.
Reset the fader and/or balance settings.
The input/output cables or wiring harness are connected incorrectly.
Reconnect the input/output cables and/or the wiring harness correctly. See the section on "Connecting Cables to Terminals".
Nothing happens when the | The computer chip in the unit is not functioning normally. | Press the reset button on the unit (see page 4). | |
buttons are pressed. |
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The sound quality is poor or | A speaker cable may be pinched by a screw in the car. | Check the speaker wiring. | |
distorted. |
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The speakers are not wired correctly. | Reconnect the speaker cables so that each output terminal | ||
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| is connected to a different speaker. | |
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Radio reception is poor. | The car antenna is not extended. | Pull out the antenna all the way. | |
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| The antenna control cable is not connected. | Connect the cable correctly, referring to the section on | |
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| "Connecting Cables to Terminals". | |
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The memory is erased when | The battery cable has not been connected to the proper | Connect the cable correctly, referring to the section on | |
the ignition is turned off. | terminal. | "Connecting Cables to Terminals". | |
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| The ignition and battery cable are incorrectly connected. | Connect the cable correctly, referring to the section on | |
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| "Connecting Cables to Terminals". | |
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The TEL mute function does | The TEL mute cable is not connected properly. | Connect the cable correctly, referring to the section on | |
not work. |
| "Connecting Cables to Terminals". | |
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The TEL mute function turns on | The TEL mute cable is touching a metal part of the car. | Pull the TEL mute cable away from the metal part of the car. | |
even though the TEL mute |
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cable is not connected. |
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