Furuno MU-150C ユーザーズマニュアル

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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 
Battery voltage too high. 
Check battery voltage. 
Fuse has blown. 
Replace fuse. 
Cable between MU-150C and external 
equipment has loosened. 
Refasten cable. 
Power cable has loosened. 
Refasten cable.