Gray test

This test checks for screen distortion. To escape from the test reset the power.

GRAY TEST

Figure 13-6 Gray test

SIO test

This test checks for proper communication between the display unit and transmitter unit, and requires a jumper plug. To escape from the test reset the power.

SIO TEST

DRAW

SIO

=

NG

IF

SIO

=

NG

PISO

SIO1

=

OK

 

SIO2

=

NG

PIF

SIO1

=

OK

Figure 13-7 SIO test

13-4

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Furuno CSH-53 manual Gray test, SIO test