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System Maintenance
Section 3-9
• The LCD displays dots (segments of the screen) line by line beginning
with the top left corner. If all the dots are displayed normally, the NT20 will
enter the I/O CHECK MENU after all the dots have been turned off.
• To cancel the LCD indication check, press any touch switch (anywhere)
on the screen. The I/O Check Menu will be redisplayed.
Checking the Buzzer
Check the NT20 buzzer by using the menu operation from the System Menu
as described below.
[ SYSTEM MENU ]
Quit
Transmit Mode
Maintenance Mode
Select “Maintenance Mode”.
[ MAINTENANCE MENU ]
Quit
PT Setting
I/O Check
DIP-SW Status
Init. Memory
Memory Switch
Select “I/O Check”.
[ I/O CHECK MENU ]
Quit
LED Check
Buzzer
LCD Display
Comm. Check
Touch Switch
Data Memory
Select “LCD Display”.
[ SYSTEM MENU ]
Quit
Transmit Mode
Maintenance Mode
Select “Maintenance Mode”.
Select “RS-232C I/F”.
Summary of Contents for NT20
Page 1: ...Programmable Terminal Cat No V091 E1 01 NT20 USER S MANUAL ...
Page 2: ...NT series Programmable Terminal User s Manual Produced March 2007 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 15: ...xvi ...
Page 21: ...xxii EC Directives 6 ...
Page 37: ...16 Before Operating Section 1 6 ...
Page 153: ...132 Transferring the Resource Data Section 3 11 ...
Page 185: ...164 Numeral Setting Section 4 8 ...
Page 267: ...246 Key to Programs Section 6 8 ...
Page 281: ...260 Specifications Appendix A ...
Page 285: ...264 Transporting and Storing PTs Appendix C ...
Page 303: ...282 Function Restrictions Depending on the Support Tool Appendix I ...
Page 307: ...286 Index ...
Page 309: ...288 Revision History ...