I have a 2465B that passes all calibration routines except parametric measurements CAL 09 steps 2 and 3 which always indicate "LIMIT". All of the rest of the CAL 09 steps pass. CAL routines 01, 02, 03 have been been repeated a couple of times with no problems. The scope functions fine and seems to perform parametric measurements correctly.
Has anyone seen this problem before and have a fix? Any thoughts would be appreciated.
Regards, George Kerber
download the servicemanual of the 2465B from
and follow the cal. procedure. This helped with my tek2465B
hth, Andreas
Andreas, That is exactly what I did. The entire cal procedure has been perfomed a couple of times. Still get "LIMIT" on CAL 09 steps 2 & 3. Everything else passes and the scope appears to function normally, except at startup it fails test 04 code 02 which means one or more cal coefficients is out of limits. I assume this is from CAL 09 steps 2 & 3. George
..snippety..
George, okay, when you can't complete by simply caloibrating: this says that your scope can't be cal'd any more due to a hardware problem on the board (most often input amp chips partly defective/out of specs).
change these chips. But be warned: Spares are ahrd to get.
hth, Andreas
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