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WARNING
Ensure battery polarity is correct.
Wrong polarity may cause the batteries to
explode.
Fuse replacement
The fuse in the power cable protects the equipment from internal fault and overcurrent. If
the fuse blows, find the cause before replacing it. If the fuse blows again after replacement,
request service.
Ship’s power source Rating of fuse
12 VDC 10A
24 VDC 5A
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.
Troubleshooting table
Reason for no picture Remedy
Ship’s battery voltage too high Check battery voltage.
Fuse has blown. Replace fuse.
Cable between MU-155C and external
equipment has loosened.
Refasten cable.
Power cable has loosened. Refasten cable.
You can confirm which signals are currently input in the SYSTEM menu.
SYSTEM menu
RGB1 RGB2 DVI VIDEO1 VIDEO2 VIDEO3 OSD SYSTEM
INFRARED REMOTE A
A
DEFAULT RESET NO
INFORMATION
RGB1 : 1280x1024 fH: 80KHz fV: 75Hz
RGB2 : 640x480 fH: 31KHz fV: 60Hz
DVI : NO SIGNAL
VIDEO1: NTSC
VIDEO2: PAL
VIDEO3: NO SIGNAL
PROGRAM NO. *****
WARNING
Use the proper fuse.
Use of a wrong fuse can cause fire or
damage to the equipment.