Furuno CSH-7 - Manual (Page 46)

8-5
Figure 8-4 Color test display
Gray test
This test checks for proper display of monochrome characters
and markers. Concentric rings and a monochrome test bar are
displayed.
PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK
..... ...
GRAY TEST
Figure 8-5 Gray test display
Conti test
This test continuously checks the display and transceiver units.
In addition to the devices checked in the single test, the DROM
and DRAM are also checked.
CONTI TEST
MAIN 105-0557-0xx
TRX 105-0569-0xx
I/F 105-0267-0xx
ROM
RAM
P.W
DRAM
DPRAM
ROM
RAM
DROM
ROM
RAM
DPRAM
GYRO
LOG
= OK
= OK
= OK
= OK
= OK
= OK
= OK
= OK
= OK
= OK
= OK
= OK
= OK
PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK