3. MAINTENANCE, TROUBLESHOOTING
3-3
3.3
Troubleshooting
This section provides troubleshooting information for the user and service
technician.
3.3.1
Easy troubleshooting
If something appears to be wrong with your unit, check it by referring to the
troubleshooting table below. If you cannot restore normal operation, please do
not attempt to check inside any unit. Any repair work is best left to a qualified
technician.
Table 3-2 Easy troubleshooting
If…
But…
Then…
the control panel does
not light
•
try adjusting the control panel
backlighting with Panel Dimmer on
the OTHER menu.
•
battery may have discharged.
•
check fuse.
you pressed the [POWER]
key to turn on the radar
nothing appears on
the display
•
try adjusting the brilliance with the
[BRILL] control.
the antenna does not
rotate
•
the problem may be in the antenna
unit. Request service.
the radar has warmed up
and you pressed the
[STBY/TX] key to transmit
characters and
indications are
abnormal
•
have a qualified technician check the
set.
neither noise nor
targets appear
(indications and
markers do)
•
check signal cable for damage.
Replace if damaged.
you have adjusted the gain
with FTC and STC off
neither indications nor
markers appear (noise
and targets do)
•
check signal cable for damage.
Replace if damaged.
a key is pressed
nothing happens
•
key may be faulty. Request service.
Summary of Contents for FR-7041R-MARK-2
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