Lcd Test - Furuno FS-1575 Service Manual

Step-4) C-CPU PCB (4/4) Window

15. LCD TEST

Pressing the [ENTER] knob three times will switch the display to the (4/4) window and
put the system into LCD test mode.
To exit from the LCD test mode, press the [MENU] key twice. To conduct LCD tests,
press the [ENTER] knob.
The LCD tests are conducted in the order shown on the above window every time the
[ENTER] knob is pressed.
Red -> Green -> Blue -> Red gradation -> Green gradation ->
Blue gradation -> White -> Black -> White gradation -> Gray
Note)
Since the last color "Gray" is shown by arranging white and black by dot, it looks like a
"Gray" color.
Upon completion of the LCD tests, the display will return to the LCD TEST window
shown above.
Then, press the [MENU] key twice to exit from the C-CPU test mode.
CONFIDENTIAL (internal use only)
This confidential document is used only by FURUNO authorized persons.
It is strictly prohibited to reproduce the document in whole or in part without prior written permission of FURUNO.
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6.5 SERVICE: TEST
See Note)