Sharp PC7000A Service Manual page 27

la) Test
Screen sizes, distortions or center slipping are adjusted or
checked on the size test screen.
12.1.3) Abortion of Test
While executing a test, if pressing [[ESC]] control exits to
the MONO test menu IFigure MONO·1).
12.2) CRT focus check
12.2.1) Summary
Display characters on CRT display are checked.
12.2.2) Operation
As soon as this test is specified, test processing is started.
Adjustment for focus check screen IFigure MONO-3) is
displayed.
la) Test
CRT display characters are adjusted or checked on the
"adjustment for focus check" screen.
12.2.3) Abortion of Test
While executing a test, if pressing control exits to [[ESC]]
the MONO test menu IFigure MONO·l).
12.3) CRT attribute check
12.3.1) Outline
Attribute paterno
12.3.2) Operation
Operation is not needed. As soon as this test is specified,
test processing is started.
la) Tests
la·') CRT attribute check·l
As the attriboute patterns are displayed in the blink enabled
state as in
Fig. MONO·4,
it permits visual check.
(a·2) Test interruption and termination
Depression of the [F2] key upon termination of the test
causes it to advance to the CRT attribute check-2. If the
[ESC] key is depressed, the control returns to the MONO
test menu IFig. MONO·1).
la·3) CRT attribute check·2
As the attribute patterns are displayed in the background
intensity enabled state as in Fig. MONO-5
f
it permits visual
check.
(a-4) Test interrupt jon and termination
Depression of the [ESC] or [[+I]] key after the termina·
tion of the test, the control returns to the MONO test menu
IFig. MONO·l).
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PC-7000A
PC-710D