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3-7
3.7 Diagnostic Test
A diagnostic test program is provided to en-
able testing of major circuit boards in the ra-
dar display unit. Note that the normal radar
picture is lost during this test.
Proceed as follows to execute the diagnostic
test:
1. Press the MENU key to shown the main
menu.
2. Press the [0] key four times to select the
OTHER sub menu.
3. Press the [2] key to select TEST.
Program numbers appear. The diagnos-
tic test is executed and the screen shows
test results as shown on the next page.
OKs appear for normal operation. ARP re-
sults appear only when optional ARP
Board is mounted. If NG (No Good) ap-
pears, corresponding components may be
defective. Consult your dealer.
5. Small squares and circles displayed on the
test results screen are for testing the keys
and controls. As you operate the keys,
corresponding squares are highlighted, in-
dicating that your control/key operations
are properly recognized.
6. Press the [ENTER/SELECT] key to check
the display circuit. See page 3-9.
7. To terminate the diagnostic test, press the
[MENU] key.
MENU
1. VIDEO PLOT
2. TGT TRAIL
3. TGT ALARM
4. PANEL DIM
5. ECHO SIG
6. FUNC
7. PLOT
8. MARK
9. BRILL
0. OTHER
OTHER
1. HDG SET
2. SPD MODE MAN LOG NAV
3. MAN SPD
4. DRIFT SET
5. DISPLAY
6. MARK/LINE
7. TUNE
8. NAV DATA
9. EBL/VRM
0. ↓
[0] key TWICE
OTHER
1. ↑
2. TEST
3. DEGAUSS
4. TIME ALARM
5. RANGE
6. INSTALL
[0] key TWICE
[MENU] key
[2] key TWICE to
start test
Figure 3-1 Sequence for diagnostic test