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.
?The HD Radio mode cannot be selected.
✔The connection wire is not connected.
☞Use the connection wire to connect the control unit and the HD Radio tuner.
?Nothing happens when the buttons are pressed.
✔The computer chip in the unit is not functioning normally.
☞Press the reset button on the Control/Controller unit.
?No sound can be heard, or the volume is low.
✔The input/output wires or wiring harness are connected incorrectly.
☞Reconnect the input/output wires and/or the wiring harness correctly. See the section on <Connecting Wires to Terminals>.
✔The preset broadcast station is not transmitting in the mode that was set with <Receive Mode>.
☞Please set <Receive Mode> to "Auto".
✔It switches between the Digital broadcasting and Analog broadcasting too often.
☞If the receiving condition is bad, <Receive Mode> should be set to "Analog".
✔In digital AM broadcasting, receive mode switches between stereo and monaural too often.
☞Receiving condition is bad or unstable. Stereo is chosen when receiving condition is good, and it switches to monaural when the condition becomes bad.
✔The source mode was changed or the power switch was turned on.
☞The monaural signals are received several seconds after
?Radio reception is poor.
✔The car antenna is not extended.
☞Pull the antenna out all the way.
✔The antenna control wire is not connected.
☞Connect the wire correctly, referring to the section on <Connecting Wires to Terminals>.
?The tuner cannot be used by the Dual Zone System.
✔The HD Radio source cannot be selected by the Dual Zone System.
☞An internal source other than Tuner can be selected.
Linking: | Although the Sub channel was selected, it is |
| under reading or has not been received. |
HD# Off/ #CH Off/ OFF:
•The Sub channel, which cannot be used, was selected.
•<Receive Mode> is set to "Analog"; therefore, the channel cannot be used.
➪Set <Receive Mode > (page
•In HD Radio mode, the display of Station Name or Song title should be set up. The channel information cannot be displayed in the Frequency display. (page