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Registered Member #3918
Joined: Sun May 29 2011, 08:42PM
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Posts: 34
I acquired a used (heavily judging by the screen burn-in) Tektronix TDS360 200MHz dual channel digital real-time oscilloscope, which worked perfectly, for a few days... After rooting through the menus I found the built-in signal path compensation function and decided it was a good idea to run it. The scope told me this would take up to 20 minutes. After 3 seconds and what seemed like all of it's relays firing at once it failed and referred me to the error log. This consists of multiple pages of calibration and acquisition errors with a few memory address errors mixed in. I wouldn't mind the signal path compensation failing as the scope worked fine before, however this seems to have wiped it of any previous calibration data. Vertical scale is completely wrong for any range and no trace is displayed when the horizontal division is set to anything less than 100ms (although I believe this to be a trigger issue). This has rendered the scope almost completely useless. I looked inside and there are no obvious exploded components, no bulging/leaky capacitors and all the voltage rails seem fine. Anyone have any other ideas for causes of problems like this? I can post pics but they don't really show much. Anyone with experience with the TDS300 series would be a great help.
Registered Member #3918
Joined: Sun May 29 2011, 08:42PM
Location:
Posts: 34
EasternVoltageResearch wrote ... I would give Tektronix a call. They are usually good about these sort of things.
I emailed them not long ago, they told me to replace the mainboard and gave me an order code for it. This turned out to cost something along the lines of £750 (just under 1200 USD), I've seen working TDS360's on ebay for less than that.
Nicko wrote ... Go to the tekscopes forum on yahoo. lots of ex-tek engineers hang out there. That's where the knowledge is.
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TDS360 Oscilloscope help
