T
-900 series Chapter 4 Maintenance
0093142132-00
4-3
4.2
Fuse Replacement
WARNING
Use the specified fuse. If a fuse other than the
specified one is used, it leads to a serious accident.
If the input voltage is too high, hyper-current flows or a trouble occurs inside, the fuse blows out.
The fuse is housed in the rear side of the unit.
4.3
Consumables
This unit employs the magnetron which is the consumables and needs the replacement periodically.
The magnetron is housed in the antenna drive block. When it is hard to see an image at a far distance,
the magnetron may be deteriorated. In this case, replace the magnetron. When replacing, consult your
sales dealer.
Press the [MENU] key and select [MAINTE]
→
[DISPLAY UNIT], message of transmission time is
displayed.
Replacement target: Normally 3,000 hours
4.4
Trouble Diagnosis
In this chapter, for finding a troubled location on a ship, a simple troubleshooting is mentioned.
4.4.1
Information required for requesting a repair
Inform us of the following items.
(1) Name of ship, telephone number if the satellite communication system is equipped
(2) Type of equipment
(3) Manufacturing number of the equipment
(4) ROM
version
（
Press the [MENU] key and select [MAINTE]
→
[DISPLAY UNIT], message of ROM
version is displayed.
）
(5) Port of next arrival, arrival schedule and dealer name
(6) Trouble situation and inspected result on a ship
4.4.2
Error Display
When an abnormality occurs in the equipment or miss-operated, the content of the abnormality is also
displayed on the radar screen. The error, alarm and warning are provided. When an abnormality is
detected in the radar, after recording the abnormal classification, abnormal location and abnormal
content, press the [ENT] key.
