Furuno color video plotter GD1720C - Manual (Page 212)

8. MAINTENANCE, TROUBLESHOOTING
8-3
8.4 Replacing the Magnetron
When the magnetron has expired, distant targets cannot be seen on the display. When you
feel that long range performance has decreased, contact a FURUNO agent or dealer about
replacement of the magnetron.
Radar model and magnetron used
Model Magnetron Type Code No.
MODEL 1724C E3588 000-146-866
MODEL 1734C E3571 000-146-867
8.5 Simple Troubleshooting
This section provides simple troubleshooting procedures which the user can
follow to restore normal operation. If you cannot restore normal operation do not
attempt to check inside the unit. Any trouble should be referred to a qualified
technician.
8.5.1 General
General troubleshooting
If… Then…
you cannot turn on the
power
• check for blown fuse.
• check that the power connector is firmly fastened.
• check for corrosion on the power cable connector.
• check for damaged power cable.
• check battery for proper voltage output (10.8 to 31.2 V).
there is no response
when a key is pressed
• turn off and on the power. If there still is no response the key may
be faulty. Request service.