Furuno 1942 Manual De Usuario

Table 5-2 contains simple troubleshooting pro-
cedures which you can follow to try to restore
normal operation. If you cannot restore normal
operation, do not attempt to check inside any
unit of the radar system. Any repair work is best
left to a qualified technician.

you pressed the 
[POWER] key to 
turn on the radar

the control panel 
does not light

• try adjusting the control panel back-
  lighting on the OTHERS menu.
• battery may have discharged.
• check fuse in power cable.

nothing appears on 
the display or display 
contrast is poor

• try adjusting the brilliance.

characters are 
distorted

• request service.

the radar has 
warmed up and you 
pressed the
[STBY TX] key to 
transmit

the antenna does not 
rotate

• the problem may be in antenna unit.
  Request service.

characters and 
indications are 
abnormal

• have a qualified technician check the
  set.

you have adjusted 
the gain with A/C 
RAIN and A/C SEA 
off

neither noise nor 
targets appear 
(indications and 
markers do)

• check signal cable for damage.

neither indications nor 
markers appear 
(noise and targets do)

• check signal cable for damage.

the sweep (radial line 
sweeping around the 
display) is not 
synchronized with 
antenna rotation

• the problem may be in the antenna
   unit. Request service.

there is no change in 
sensitivity

• request service.

a key is pressed

nothing happens

• key may be faulty. Request service.