HP 2641A Reference Manual page 150

Display message
"BASIC DATA COMM
SELF TEST ERROR 0 (DISABLEDI"
Display message
"BASIC DATA COMM
SELF TEST ERROR 1 (NO CB)"
(See note)
Display message
"BASIC DATA COMM
SELF TEST ERROR 3 (LOST CHAR)"
(See note)
Display message
"BASIC DATA COMM
SELF TEST ERROR 2 (PARITYI"
(See note)
Display mes5ag(~
"BASIC DATA COMM
SELF TEST ERROR 3 (OVERRUNI"
(See note)
Display message
"BASIC DATA COMM
SELF TEST ERROR 3 (LOST CHAR)"
(See note)
Note: Error messages disable the key board.
To restore operation, press RESET
TERMINAL key.
Installation
Figure 7-33. Basic Data Comm Self-Test Flowchart (Sheet 1 of 2)
7-45