Troubleshooting - Furuno MU-120C Operator's Manual

Battery replacement
The remote controller has two AA batteries. If the distance from which the remote controller
can be operated has decreased, change the battery.
Note: Replace all batteries together. Do not mix old and new batteries.

5.2 Troubleshooting

The table below provides troubleshooting procedures to use when no picture appears. If
you cannot restore the picture, do not attempt to check inside the equipment – there are no
user serviceable parts inside. Refer any work to a qualified technician.
Ship's battery voltage too high
Fuse has blown.
Cable between MU-120C and external
equipment has loosened.
Power cable has loosened.
You can confirm which signals are currently input in the SYSTEM menu.
RGB1 RGB2 DVI VIDEO1 VIDEO2 VIDEO3 OSD
INFRARED REMOTE
DEFAULT RESET
INFORMATION
RGB1
RGB2
DVI
VIDEO1 : NTSC
VIDEO2 : PAL
VIDEO3 : NO SIGNAL
PROGRAM NO.:***************
WARNING
Ensure battery polarity is correct.
Wrong polarity may cause the batteries to
explode.
Troubleshooting table
Reason for no picture
A
NO
: RESOLUTION:1280x1024 fH: 80KHZ fH: 75HZ
: RESOLUTION: 640x480 fH: 31KHZ fV: 60HZ
: NO SIGNAL
SYSTEM menu
Remedy
Check battery voltage.
Replace fuse.
Refasten cable.
Refasten cable.
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