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Author Topic: TDS3000B dead channel ??  (Read 1515 times)

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Offline darkstar49Topic starter

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TDS3000B dead channel ??
« on: August 25, 2017, 01:42:45 pm »

Hi,

got a TDS3034B from which channel 4 looks dead... i.e. with the internal 1khz signal, there are only small spikes (+- 100-200mv) at 1ms intervals, but also negative spikes, also at 1ms intervals, but shifted 0,5ms from the positive ones...
Other channels are OK.

Did not do anything so far, but has anyone encountered similar symptoms ?? error log only reports issues with the user interface (although it shows "CPU:9"... ??), but acquisition:0

Any hints appreciated...

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Offline darkstar49Topic starter

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Re: TDS3000B dead channel ??
« Reply #1 on: August 25, 2017, 01:56:58 pm »


just ran diag: everything passes...
SPC: everything OK as well...
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Offline Jwalling

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Re: TDS3000B dead channel ??
« Reply #2 on: August 25, 2017, 03:30:34 pm »
Check for a broken connection between the BNC and the ACQ board. Common problem with the TDS3K series
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Offline zxase258

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Re: TDS3000B dead channel ??
« Reply #3 on: August 29, 2017, 06:46:26 am »
Check the input attenuator relay
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