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Author Topic: TDS520D Horizontal position not moving  (Read 1121 times)

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Offline TectonicTopic starter

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TDS520D Horizontal position not moving
« on: April 22, 2017, 01:15:16 pm »
I can't move waveforms horizontally on my TDS520D. The horizontal position knob isn't moving waveforms. I've tried a few troubleshooting steps to no avail:

  • Factory Reset (normal and DPO)
  • Diag/Err: no failures
  • Pressing the help button then turning the horizontal position knob does display its help text
  • I replaced the front panel. No change.
  • Tried both channels with different probes
  • Checked the zoom menu and tried the different lock/unlock functions

Am I missing some hidden locking function which persists through a factory reset? Should I be looking at the acquisition or processing boards? Any advice is greatly appreciated.
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Offline capt bullshot

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Re: TDS520D Horizontal position not moving
« Reply #1 on: April 24, 2017, 01:35:19 pm »
Did you set the acquisition length to more than 1000 Samples?
Did you turn off the "fit to screen" option?
Did you turn off DPO / InstaVu mode?
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Offline TectonicTopic starter

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Re: TDS520D Horizontal position not moving
« Reply #2 on: April 24, 2017, 11:31:16 pm »
Did you set the acquisition length to more than 1000 Samples?
  • Set to 5k

Did you turn off the "fit to screen" option?
  • It's off

Did you turn off DPO / InstaVu mode?
  • It's off
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