Alpine F1 STATUS PXI-H990 - Manual (Page 112)

108
- EN
Information
In case of difficulty
If you encounter a problem, please review
the items in the following checklist. This
guide will help you isolate the problem if
the unit is at fault. Otherwise, make sure
the rest of your system is properly
connected or consult your authorized
Alpine dealer.
Set does not operate.
Nothing appears on the head
unit display.
• Vehicle’s ignition key is turned off.
- Turn the vehicle’s ignition key on.
• Set’s power is not turned on.
- Turn the vehicle’s ignition key on then
turn on the power of the head unit.
• Power cord is not securely connected.
- Connect the power cord securely.
• Fuse is blown.
- Replace with a fuse of the specified
capacity.
Power is on but no sound is
produced.
• Volume level is set to the minimum.
- Increase the volume level from the
head unit.
No sound is produced from the
speakers.
• Cords are not securely connected.
- Connect the cords securely.
• Speaker is set to the off mode.
- Set the speaker to the on mode. (Pages
7 and 53)
• Subwoofer is turned off.
- Turn the subwoofer on. (Pages 7 and
53)
Low DVD sound
• There is a difference between CD and
DVD audio level.
- Adjust the DVD level. (Page 74)
Sound cannot be adjusted.
• Head unit defeat is set to the on mode.
- Set head unit defeat to the off mode.