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14. MAINTENANCE, TROUBLESHOOTING
14-2
14.2 Fuse Replacement
The fuse in the fuse holder in the power cable protects the equipment from high elec-
tric current and equipment fault. If you cannot turn on the power, check the fuse to see
if it has blown. Find the reason for the blown fuse before you replace the fuse. If the
fuse blows again after the replacement, contact your dealer for advice.
14.3 Life of Parts
Magnetron
When a magnetron reaches the end of its life, targets do not appear on the radar dis-
play. If long-range performance appears to have declined, contact your dealer about
replacement of the magnetron.
The total time of power-on ("ON TIME") and transmission ("TX TIME") are displayed
on the radar screen during the stand-by mode.
LCD
The life of the LCD is approximately 18,000 hours for the TZTL15F, and 25,000 hours
for the TZTL12F. The actual number of hours depends on ambient temperature and
humidity. When the brilliance cannot be raised sufficiently, contact your dealer about
replacement of the LCD.
Fan
The approximate life of the fan is as shown in the table below, and the actual life de-
pends on ambient temperature. When the fan does not rotate sufficiently, an applica-
ble message appears in the status bar. Turn off the power and contact your dealer
about replacement of the fan.
WARNING
Use the proper fuse.
A wrong fuse can damage the equipment and
cause fire.
Name Type Code No. Remarks
Fuse FGBO-A 125V 5A PBF 000-155-853-10 12 VDC, 24 VDC
Radar Sensor Magnetron Code No. Approx. Life
DRS2D E3590 000-164-574-11 2,000 hours
DRS4D E3571 000-146-867-11 2,000 hours
DRS4DL 80-0691 001-266-460 5,000 hours
DRS4A MAF1421B 000-158-786-11 3,000 hours
DRS6A MAF1422B 000-158-788-12 3,000 hours
DRS12A MAF1565N 000-174-559-10 3,000 hours
DRS25A MG5436(E2V) 000-140-762-10 2,000 to 3,000 hours
Item Type Code No. Estimated Life
FAN MOTOR MFB52A-12HA-002 000-175-998-10 Approx. 21,000 hours