Diagnostic Test; Replacing The Fuse - Furuno FMD-8010 Operator's Manual

2.2 Diagnostic Test

A diagnostic test is provided to enable testing of
major circuit boards in the remote display.
Proceed as follows to execute the diagnostic test:
1) Press the MENU key.
2) Select the INITIAL menu and press the EN-
TER/SELECT key.
3) Select TEST and press the ENTER/SELECT
key.
ROM 1 035909910x OK
ROM 2 035910010x OK
RAM 1
RAM 2
ON TIME 000001.2
VIDEO LEVEL
x = Version level
ARP-15 data appears
if ARP-15 is provided.
Figure 2-1 Diagnostic test screen
The diagnostic test is executed and the screen
shows test results. Sample test results are shown
in Figure 2-1.
Small squares displayed to the right of the test
results screen are for testing the controls and keys
on the control panel. As you operate the controls
and keys, corresponding squares are highlighted,
indicating your control/key operations are prop-
erly recognized.
4) To display a test pattern, press the ENTER/SE-
LECT key. You can return to the main diag-
nostic test screen by pressing the ENTER/
SELECT key again.
2 – 2
OK
*
OK
3.0V
\
Figure 2-2 Diagnostic test, test pattern
5) To return to the normal remote display, press
the MENU key.

2.3 Replacing the Fuse

The fuse in the power cable protects the equip-
ment against reverse polarity of ship's mains,
overcurrent, and equipment fault. If the fuse
blows, find the cause before replacing it. Use the
proper fuse shown in below, since overfusing can
cause serious damage to the equipment and void
the warranty.
Power supply Fuse to use
24/32 VDC: 10 A
12 VDC: 20 A
CAUTION
CAUTION
Use the proper fuse.
Use of a wrong fuse can cause
fire or equipment damage.