Tektronix Applications Expert

The only battery is a dry 3V 150mAh, lithium button cell to maintain internal code and non user accessible data, no need to remove for Declassification/sanitize.

The "remove power" is only power down the DPO4104, unplug it from the wall outlet.

The part number for external AC-DC power supply to run THS3014 is 119-7900-03 we have stock and the cost is about $422.00

If you need the battery pack look for the Fluke "BP291"
We do not have the battery packs any more.
Some distributors my have the BP291 in stock.

The battery charging base, THSCHG, is the separate battery charger and is obsolete and unavailable.

Hello,

The battery in DPO5K is not user replaceable, it is soldered down on the board.

Please contact service and send the scope in for repair.
Tektronix/Keithley Repair/Calibration:
Web: https://www.tek.com/rma-request
Email: rmarequest@tektronix.com

Hello,

The reason why turning on channel 3,4,7, or 8 reduces the bandwidth of all channels to 5GHz is because certain channels share the two ADCs within the scope. As more/certain channels are turned on, the bandwidth of the sample rate will decrease because a portion of the ADCs processing power is being used by another channel. Below I explain a breakdown of what channels should be used to receive certain sampling rates and bandwidth.
• With MSO68B channels 1 and 5 ON (2, 3, 4, 6, 7, and 8 off), the scope can sample at 50GS/s and 10GHz.
• With MSO68B channels 1, 2, 5, and 6 ON (3, 4, 7, and 8 off), the scope can sample at 25GS/s and 10GHz.
• With the MSO68B with all channels ON, the scope can sample at 12.5GS/s and 5GHz.

This information can be found in the Performance Verification Manual on Page 22-24: https://www.tek.com/en/manual/oscilloscope/6-series-b-mixed-signal-oscilloscope-specifications-and-performance-verification-6-series-mso

The max sample rate associated with each channel can also be found above the scope channels on the front of the oscilloscope.

I hope this helps clarify the how the scope channels are related.

Hello,

The AFG31022 will cover the same use use cases as the AFG3022C as well bringing some additional functionality to the table, particularly with its optional sequencer software. It may not strictly be a drop-in replacement programmatically though, existing scripts and programs will likely require modification depending on how they are configured (although the basic instrument controls are very similar). For reference, the programmers manual covers the command set of the AFG31000 Instruments: https://www.tek.com/en/signal-generator/afg31000-function-generator-manual/afg31000-series-arbitrary-function-generator-0

The corresponding options for this instrument would be AWG5200-8-2550 and AWG5200-8DIGUP (which requires AWG5200-8-2550). Regarding up conversion, the answer is maybe. But it's still subject to more limitations than the question suggests as the center frequency can be half the output sample rate without additional DDR limitations. Please refer to page 67 of this document: https://download.tek.com/manual/AWG5200-Arbitrary-Waveform-Generator-Printable-Help-Document-077133400-REVA.pdf to see the details of the digital upconversion functionality.

Hello,

Since we don’t spec this, I measured it myself with a power analyzer (PA1000) using a 1 GHz MSO58. This should be taken with a grain of salt as this equipment wasn’t recently calibrated. But, I’d say give this about a ±3% error for the resulting values.

I was getting an average of about 6.4 Watts in standby mode, with peaks of 7.5 Watts, and lower end of 5.3 Watts. The power factor was jumping around a bit in standby mode.

While powered on, I was getting an average of 178 Watts in standby mode with some measurements on the display. I saw peaks of 220W during power up.

One thing if forgot to mention is, this was done with no active probes attached to the input channels. Some Hall-effect current probes can take in about 8 watts each. Attach a few of these to the scope and it’ll definitely change the results. Most active voltage probes require under 2 watts.

I also took a measurement on the 2 GHz model as it has different front-end hardware so I thought that would make a small difference. To my surprise it made a fairly significant difference.

I was getting an average of 228 Watts of power with no active probes connected. The TPP1000 passive probes that come with the scope make a negligible difference when connected.

The suggested replacement for a TDS794D would be the 5 Series B MSO. The 5 Series B MSO can have 4,6, or 8 channels, has up to 2GHz bandwidth, and has a Sample Rate of up to 6.25GS/s. More information and detail about the scope can be found at the product page linked below. You could also consider the 4 Series MSO and 6 Series B MSO. Both are linked below as well.
5 Series B MSO Mixed Signal Oscilloscope: https://www.tek.com/en/products/oscilloscopes/5-series-mso
4 Series MSO Mixed Signal Oscilloscope: https://www.tek.com/en/products/oscilloscopes/4-series-mso
6 Series B MSO Mixed Signal Oscilloscope: https://www.tek.com/en/products/oscilloscopes/6-series-mso

Hello,

Unfortunately the DPO4AUTOMAX is obsolete. I'm not aware of any source to get a new one. One possible option would be to look in the used market by searching the web for one.

The audible relay clicks are from the 50 ohm to 1M ohm path changing. This can only be done via front panel button or programming commands. If just doing this on it's own, I would say there is a problem with the front panel and or the buttons. It could be a failing part or a wire connection.

Below is a link to the service manual if you want to do more investigation on your own.
https://www.tek.com/en/oscilloscope/mdo3000-mixed-domain-oscilloscope-manual/mdo3000

Or you can send the unit into our factory service team.
To set up a repair RMA (model and serial number)
call 1-800-833-9200 opt 2.
Or send an email to rmarequest@tektronix.com
https://www.tek.com/en/services/repair/mytek_rma_requestHi

Regarding the TPP0500Bs, yes you are correct in that when the TPP0500B is connected, the operator should not be able to alter the termination manually via button or programming.