Visara 1486 - Manual (Page 87)

701334-002 6-1
Chapter 6. Problem Determination
and Maintenance
Diagnostic Testing
The 1486A/G/P performs three types of diagnostic tests:
• Basic Assurance tests (BATs) that are performed automatically each time the display
station is powered on.
• Offline tests that check the operation of the display station independent of the attached
System/3X or AS/400.
• Online tests that check the display station as it interacts with the attached System/ 3X
or AS/400. For information about online tests, refer to the System/3X or AS/400
user’s guide.
Basic Assurance Tests
The 1486A/G/P goes through a series of self-tests called BATs each time it is powered
on. If the display station encounters an error, it sounds an alarm and attempts to display
a response on the screen. If a 2-digit alphanumeric code is displayed on the operator
status row, refer to “Hardware Failure Error Codes” on Page 6-2 and attempt the indicated
recovery procedures. If more than one error code is displayed, attempt the recovery
procedure for the leftmost error code.
If the display screen remains blank, an indication of the error may be given by the audible
alarm. A series of one, two, or three long beeps indicates a failure on the Main Logic
board of the 1486A/G/P, and the Display/Logic element should be replaced. One short
beep after the display station is powered on indicates that the display station has
successfully completed its Basic Assurance tests.