Onwa KF-667 User Manual download pdf (Page 28)

4. MAINTENANCE,TROUBLESHOOTING

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel should work

inside the equipment.

4.1 Maintenance

Regular maintenance is important for good performance. Following the recommended

maintenance procedures will help keep your set in good working condition.

4.1.1 General checking

Important points to be checked from time to time are tabulated below.

Maintenance check points

Check point Action

Transducer cable

Power cable plug/transducer cable plug

Display unit ground .

Ship’s mains voltage

4.1.2 Replacement of fuse

The fuse on the power cable protects the equipment against overvoltage/reverse polarity of the

ship’s mains or internal fault of the equipment. If the fuse blows, find the cause before replacing

the fuse. If the fuse blows again after replacement, call for service. A fuse rated for more than 3A

should not be used since it would damage the equipment and void the warranty.

CAUTION

Use the proper fuse.

Use of a wrong fuse can cause fire or

equipment damage.

4-1

If conductors are exposed, replace cable.

If loosened, tighten.

If corroded, clean

If out of ratings, correct problem.

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Onwa KF-667 User Manual Page 28