4 self test, 5 life expectancy of magnetron – Furuno 1942 MARK-2 User Manual
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5-3
5.4 Self Test
The self test facility checks the keyboard,
ROM and RAM for proper operation.
1. Press the [MENU] key.
2. Select “OTHER MENU”.
3. Select “23. Self Test” and press the [ACQ/
ENTER] key. The following display ap-
pears.
[ Self Test ]
Program No.: 0359146-1XX
ROM : OK
RAM : OK
Hours in use: 000006.9H
Tx hours : 000001.1H
Key test: Press each key and
check on-screen indication
lights.
ARP-10 TEST
ROM OK 18590271xx
RAM OK
SPEED OK NAV 0.0KT
COURSE OK 167.6
°
TRIGGER NG
VIDEO NG
BP OK
HP OK
MIN-HIT 0003
SCAN-TIME 0854
MAN-ACQ 00
AUTO-ACQ 00
FE-DATA1 0000
FE-DATA2 0000
Version no.
11 and after is available
with MARK-2 series.
Figure 5-1 Self test screen
4. The ROM and RAM are automatically
checked. If NG (No Good) appears to the
right of ROM or RAM indication, contact
your dealer for advice. ARP-10 TEST re-
sults appear only when optional ARP-10
board is mounted.
5. To check the keyboard, press any key ex-
cept [ACQ/ENTER] and [POWER] keys.
The pressed key's on-screen location
lights in black while the key is pressed, if
the key is operating properly.
6. Press the [ACQ/ENTER] key to check the
display circuit. The following pattern
should appear.
Figure 5-2 Test pattern
7. To return to the Self Test menu, press the
[MENU] key.
8. To escape from the self test, press the
[MENU] key.
5.5 Life Expectancy of
Magnetron
The following table shows the life expectancy
of the magnetrons.
Table 5-3 Life expectancy of magnetrons
l
e
d
o
M
e
p
y
T
.
o
n
e
d
o
C
y
c
n
a
t
c
e
p
x
e
e
f
i
L
2
M
2
3
9
1
1
7
5
3
E
7
2
5
-
7
3
1
-
0
0
0
s
r
u
o
h
0
0
0
,
3
-
0
0
0
,
2
)
y
b
-
d
n
a
t
s
g
n
i
d
u
l
c
n
I
(
2
M
2
4
9
1
9
8
3
5
G
M
6
4
1
-
5
3
1
-
0
0
0