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The number of the interruption request signal is displayed at XX.
If no access is allowed to COM1 UART, the following display is
made.
Serial I/O COM1 Check
COM1 Channel Disabled
Terminating method.
Press Esc key to terminate.
2) COM2 Check
Check content
The loop back check is performed for UART at I/O address 2F8H
2FFH. The check procedure, the display, and the terminating
method are the same as COM1 Check.
3) COM3 Check
Check content
The loop back check is performed for UART at I/O address 3E8H.
When the ER-A8RS is assigned to COM3, the check procedure,
display and terminating method are the same as COM1.
When the RJ-45 port of the UP-5700 main unit is assigned to
COM3, the following points are different from COM1 Check :
Content
RTS-CTS is not checked.
DTR-RI is not checked.
Display
RTS-CTS is not displayed.
DTR-RI is not displayed.
COM3 is checked as well as COM1 except the above 2 points.
4) COM4 Check
Check content
The loop back check is performed for UART at I/O address 2E8H
2EFH. The check procedure, the display, and the terminating
method are the same as COM3 Check.
5) COM5 Check
Check content
The loop back check is performed for UART at I/O address (PSC2
base address) + (410H
417H). The following points are different
from COM1 Check:
Content
RTS-CTS is not checked.
DTR-RI is not checked.
Display
RTS-CTS is not displayed.
DTR-RI is not displayed.
COM5 is checked as well as COM1 except the above 2 points.
6) COM6 Check
Check content
The loop back check is performed for UART at I/O address (PSC2
base address) + (418H
41FH). The check procedure, the dis-
play, and the terminating method are the same as COM5 Check.
3-10. Liquid Crystal Display Diagnostics
LCD test is performed.
The following patterns are displayed in sequence. Pressing the space
bar proceeds the display. Pressing the space bar at the final pattern
or pressing Esc key during the test, the display returns to the service
diagnostics menu.
1) Liquid Crystal Display Check
Check content
The test patterns are displayed in the following test procedures.
Pressing the space bar moves to the next pattern.
i. Black-and-white pattern in 1 dot interval
ii. Reversed pattern of pattern i.
iii. Vertical stripe pattern in 1 dot interval
iv. Reversed pattern of pattern iii.
v. Horizontal stripe pattern in 1 dot interval
4 – 10
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