Probe Comp Output; Using The Error Log; Table 6- -4: List Of Error Codes - Tektronix TPS2000 Series Service Manual

PROBE COMP Output

Using the Error Log

TPS2000 Series Digital Storage Oscilloscopes Service Manual
When the oscilloscope is on and operating properly, the PROBE COMP output
should generate a square wave, approximately 5 V in amplitude, at a 1 kHz
frequency. Use the oscilloscope and set the Attenuation switch to 10X on the
P2100 probe to probe this output.
As shown in the table below, there are two cases of defects. Either the 1 kHz
signal is on and the IO and Acquisition boards are both active and functionally
capable of performing an acquisition, or one of those two modules is not
performing correctly. While a large number of different possible frequencies
exist, all involve detected failures on the Acquisition or IO boards due to failure.
Signal at PROBE COMP
1 kHz signal, no display
Non-1 kHz signal
No signal
Failures that occur during the power-up diagnostics or normal oscilloscope
operation place an entry in the error log.
Accessing the error log. The error log list can be accessed anytime by pushing the
UTILITY button and then selecting Options > Error Log. Table 6- -4 lists the
error codes and probable causes.
Table 6- - 4: List of error codes
Number ID
0 Battery
1 Battery
2 Battery
3 Battery
0 Diagnostics
4 Diagnostics
5 Diagnostics
7 Diagnostics
Possible problem
Troubleshoot the display
Troubleshoot the Acquisition board
Troubleshoot the power supply
Description
Battery 1 alarm
Battery 2 alarm
PIC Communication
PIC HW Failure
Diagnostics internal error
CH1 diagnostics failed
CH2 diagnostics failed
ADG421 diagnostics failed
Maintenance
Probable cause
Battery hardware failure;
replace battery. If errors replace battery If errors
persists, contact Tektronix
May occur sporadically
during normal operation. If
errors occur repeatedly, a errors occur repeatedly a
hardware failure may exist.
Contact Tektronix.
Contact Tektronix
Acquisition board or power
supply failure
Acquisition board or power
supply failure
Acquisition board or power
supply failure
6- - 25