Read Sharp XE-A137 (serv.man2) Service Manual online
5-2
d.
Test result print
When a test results is OK, following result is printed out
When a test result is NG, following result is oriented out.
3-2) KEY TEST
a.
Test Procedure
Perform the keyboard check with the sum check data of the key
code.
code.
Enter the any key other than [TL] key, and then enter the [TL] key,
finally. In the process above, machine records the sum, and after
[TL] key entered, compare with check sum proper check sum.
finally. In the process above, machine records the sum, and after
[TL] key entered, compare with check sum proper check sum.
It is possible to re-operate from the beginning, enter the [CL] key 3
times, when operation is wrong.
times, when operation is wrong.
b.
Display
c.
Test result print
When a test results is OK, following result is printed out
When a test result is NG, following result is printed out.
3-3) DISPLAY TEST
a.
Test Procedure
Check the continuous buzzer sound and the display state.
<Check points>
<Check points>
1.
The all segments are lighted up correctly.
2.
The brightness of all segments is same level.
1.
Segments display test
The following pattern is displayed. When [TL] key pushed,
the display pattern is changed to next.
< Display >
The following pattern is displayed. When [TL] key pushed,
the display pattern is changed to next.
< Display >
MODE KEY SWITCH OK
MODE KEY SWITCH NG
Original check sum:
1761(4 digits)
Entered key code:
(According to entering)
(According to entering)
KEY XXXX-YYYY - OK
KEY XXXX-YYYY - NG
[TL] key pushed
[TL] key pushed
[TL] key pushed
[TL] key pushed
[TL] key pushed
[TL] key pushed
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