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Tektronix TDS3034 update

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Javier1028:
Hello,

I've bought a second hand TDS3034B. It works fine, but I have some doubts:

1.- When I save oscilloscope captures (.tiff) with the background in white, CH1 is represented in yellow. But in other TDS3034B that I have used, CH1 is represented in dark blue, which is much better to me. What can I do to have CH1 represented in dark blue? Is it necessary to update operating system? If I update the operating system, is there any risk of failing and leaving the oscilloscope inoperative? Do I have to take any special caution when updating the O.S.? Something that I should know (e.g. if I shouldn't be worried if that takes a lot of time - it doesn't mean that something has failed)?

2.- When I turn-on my TDS3034B, the date/hour is reset, and the last settings are not saved. I think that the internal NVRAM chip should be replaced. But I've heard that this chip is obsolete and there is no replacement. Have you tried this or any other solution? https://www.ebay.com/sch/i.html?_nkw=tektronix+ds1742 I'm not totally sure about this, and I wouldn't like to ruin an operating oscilloscope.

3.- The four channels have appreciable offset, up to one half vertical division in some ranges. Is there any way to correct it without sending it to the (very expensive, I guess) technical service? The offset correction in the vertical menu works nice, but I have to change the correction each time I change the vertical scale. I remember that this scope has a (terribly slow) self calibration function. Woudl it serve to remove these offsets? I haven't seen any pot in the PCB to correct the offset or any other thing.


Thank you very much and best regards,
Javier

RomDump:

--- Quote from: Javier1028 on November 06, 2022, 09:16:48 pm ---1.- When I save oscilloscope captures (.tiff) with the background in white, CH1 is represented in yellow. But in other TDS3034B that I have used, CH1 is represented in dark blue, which is much better to me. What can I do to have CH1 represented in dark blue?

--- End quote ---

It's called the "Ink Saver" feature. It's easier to download the Tekscope Utility from the Tektronix forum and use the screen capture option.




--- Quote from: Javier1028 on November 06, 2022, 09:16:48 pm ---3.- The four channels have appreciable offset, up to one half vertical division in some ranges. Is there any way to correct it without sending it to the (very expensive, I guess) technical service? The offset correction in the vertical menu works nice, but I have to change the correction each time I change the vertical scale. I remember that this scope has a (terribly slow) self calibration function. Would it serve to remove these offsets? I haven't seen any pot in the PCB to correct the offset or any other thing.

--- End quote ---

There is nothing wrong with your scope. You have to leave your Oscilloscope on for about an hour then run SPC Compensation. This will remove any offsets.

OYAZI:
2.- When I turn-on my TDS3034B, the date/hour is reset, and the last settings are not saved. I think that the internal NVRAM chip should be replaced. But I've heard that this chip is obsolete and there is no replacement. Have you tried this or any other solution? https://www.ebay.com/sch/i.html?_nkw=tektronix+ds1742 I'm not totally sure about this, and I wouldn't like to ruin an operating oscilloscope.

 I used it and OK.
https://www.ebay.com/itm/293776182478

RomDump:

--- Quote from: Javier1028 on November 06, 2022, 09:16:48 pm ---1.- When I save oscilloscope captures (.tiff) with the background in white, CH1 is represented in yellow. But in other TDS3034B that I have used, CH1 is represented in dark blue, which is much better to me.
--- End quote ---

This is a video how to turn on Ink Saver on the Oscilloscope itself.


Javier1028:
Thank you all!

The self calibration worked great.

I was already using the Ink Saver, but the CH1 trace is still yellow, I don't know why. My firmware is v2.21. Do you recommend to update the firmware? Is there any risk of leaving the oscilloscope unusable if I make a mistake?

I will try with the NVRAM you recommended. Additionally, have you ever tried a USB adaption like this?

Have you ever tried any BW hack?

Maybe too many questions... Thanks in advance!

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