NCR 7800 - Page 6

LY 8VHUV*XLGH
RS-232 Parameters - 2 ...................................................... 5-27
BCC Option ................................................................ 5-27
Interface Control ........................................................ 5-27
Check Digit ................................................................ 5-28
Retransmit on ACK/NAK Timer Expiration ............. 5-28
RS-232 Prefix Byte ........................................................... 5-29
Prefix Byte ................................................................. 5-29
ASCII Code ................................................................ 5-29
RS-232 Terminator Byte ................................................... 5-30
Terminator Byte ......................................................... 5-30
ASCII Code ................................................................ 5-30
Power-Up Message ........................................................... 5-31
Set Power-Up Message .............................................. 5-31
Data ............................................................................ 5-31
Display Parameters ........................................................... 5-32
Default Display Time ................................................. 5-32
Character Set Selection .............................................. 5-32
Parameter Version Number ............................................... 5-33
Fault Identification ............................................................. 6-1
Diagnostics ......................................................................... 6-2
Diagnostics Feedback Points ....................................... 6-2
Power-up Diagnostics .................................................. 6-3
Real-time Diagnostics .................................................. 6-4
Extended Diagnostics ................................................... 6-4
Repairing the NCR 7800 ..................................................... 6-6
Further Information ............................................................. 6-7
Demonstration Mode .......................................................... 6-8
&KDSWHU
Troubleshooting the NCR
7800 Consumer Price
Verifier