Tektronix TPS2000 Series, Service Manual

Page: 88 / 106

Maintenance
6--26
TPS2000 Series Digital Storage Oscilloscopes Service Manual
Table 6--4: List of error codes (cont.)
Number Probable cause Description ID
12 Diagnostics CH3 diagnostics failed Acquisition board or power
supply failure
13 Diagnostics CH4 diagnostics failed Acquisition board or power
supply failure
14 Diagnostics ADG421 #2 diagnostics
failed Acquisition board or power
supply failure
255 Software Software defect Contact Tektronix
Clearing the Error Log.
To clear the error log after fixing a problem, follow these
steps:
1.
Enable the Service menus as described on page 5--2.
2.
Push the
UTILITY
button and push the
Service
option button to display the
Service menu.
3.
Push the
Service Diag.
option button to display the Diagnostics menu.
4.
Push the
Clear Error Log
option button to clear the error log of past
failures. This also sets the Power Cycle count to zero.