Maintenance
6-- 44
TDS1000 and TDS2000 Series Digital Storage Oscilloscopes Service Manual
3. If no problem is found and the trouble persists, the main board is probably
defective in some way that the internal diagnostics cannot detect. Replace it.
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 selecting Error Log. Table 6--3 lists the error codes and
probable causes.
Table 6--3: List of error codes
Error code Description Probable cause
0DI Diagnostics internal error Contact Tektronix
1DI ADG522 diagnostics failed Main board or power supply failure
2DI PROM diagnostics failed Main board or power supply failure
3DI MEMORY diagnostics failed Main board or power supply failure
4DI CH1 diagnostics failed Main board or power supply failure
5DI CH2 diagnostics failed Main board or power supply failure
6DI Line trigger diagnostics failed Main board or power supply failure
7DI ADG421 diagnostics failed Main board or power supply failure
8DI GPIB diagnostics failed Extension module failure
9DI RS-232 diagnostics failed Extension module failure
10 DI Extension module RAM failed Extension module failure
11 DI Extension module checksum failed Extension module failure
12 DI CH3 diagnostics failed Main board or power supply failure
13 DI CH4 diagnostics failed Main board or power supply failure
14 DI ADG421 #2 diagnostics failed Main board or power supply failure
15 DI ADG522 #2 diagnostics failed Main board or power supply failure
16 DI DRAM2 diagnostics failed Main board or power supply failure
255 Software Contact Tektronix
Using the Error Log
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