NCR PC4I, Руководство пользователя

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MAINTENANCE AND TROUBLESHOOTING
G R A P H I C S 4 0 x 2 5
[A p a t te r n o f a l l c h a r a c te r s a h lc h can ba gen era ted
la b r l a f l y d is p la y e d on th e s c r e e n .1
Figure 4-27 40 by 25 Graphics Test Screen
After the graphics portion of the test, a message is displayed on the
screen asking if a light pen is installed. If you respond “no”, the next
screen is displayed (see Figure 4-28). If you respond “yes”, the pen is
tested before the next screen is displayed.
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COLOR ( d a ta ) ( t i n )
COLOR CRT ERROR
V___________________________________________________
F ig u re
4-28 Color Display Error Message Screen
Peripherals Test
When you choose the Peripherals Test, selection 8 on the Main Menu
screen, the program tests each of the ports. (The printer test will be
executed only if a printer is connected to the computer.) The test
screen is displayed as each peripheral is passed (see Figure 4-29). If
any of the peripheral devices fail the test, one or more of the messages
shown in Figure 4-30 will be displayed.
4-2 f
OWNER S MANUAL