Furuno CSH-53 - Manual (Page 89)

13-3
Panel test
This test checks the keys of the main and sub panels and the
remote control box. Press and release each key. Its on-screen
location should display “1” when the key is pressed and “0”
when released. To escape from the test reset the power.
PANEL TEST
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Y =
Figure 13-4 Panel test
Color test
This test checks for proper display color. To escape from the
test reset the power.
COLOR TEST
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Figure 13-5 Color test