CQ-D7400W
54
Troubleshooting
(continued)
❐
Common (continued)
❐
Radio
Trouble
Cause/Step
Station is too far, or signals are too weak.
➡
Select other stations of higher signal level.
Too much noise in FM
stereo and monaural
broadcasts.
The motor antenna relay control lead is not connected correctly.
➡
If there is a motor antenna in the car, connect the motor antenna
relay control lead to the motor antenna lead that is installed in the
car correctly.
The ground connection of the radio antenna is not secure enough.
➡
Check the ground connection of the mounted base part of the
antenna, and tighten up the screw.
The radio antenna is not extended enough.
➡
Extend fully the radio antenna.
Trouble
Cause/Step
The display shows “display and light off”.
➡
Press [DISP] (display) to change the display.
Only sound, no display.
A mobile phone is used near the unit.
➡
Keep the mobile phone away from the unit.
Noise.
The unit’s grounding wire is not connected securely.
➡
Check the metal areas of the car body (chassis), and connect the
grounding wire more securely.
Menu is displayed.
➡
Press [RET] or [DISP] (display) to return to the regular mode.
Demonstration mode is ON.
➡
Press [DISP] (display) to cancel demonstration mode.
Audio sound is output
but the demonstration
display appears.
The safety devices has been trigged by some apparent reason.
➡
Call the store where you purchased the unit, or your nearest
Servicenter.
The power goes off
suddenly without
apparent reason.
Buttons unusable (each
source operation).