EEVblog #978 - Keysight 1000X Hacking

[TheSteve]

You will always get more noise with increased bandwidth.

[hv222]

Schematic of function generator and group of components located between analog front-end and function generator. This group probably handle the signal offset and part of user calibration. Some power supply components like ferrite beads and decoupling capacitors can be missing in power supply lines. I will appreciate I someone can measure capacitors and inductors values in function generator. Is amplitude of generated signal constant while changing frequency? I add generator function to my scope, but signal shape is not satisfied

U31 and U33 are SN74HCT04PW
U46 and U47 are TL274

[hv222]

Schematic of connectors between two boards and LCD FFC connector. Pin numbers are not equal to pin numbers provided by connector manufacturer. Geometrical location on schematic is matching with connectors location on analog board. Connectors are FCI / Amphenol Bergstak series. 40pin, 2 rows, 0.8mm pitch. 61082-04xxxxxx.

[mikeselectricstuff]

On the new 4-channel DSOX1204G ( FW 2.00) , they seem to have added a "Host ID", in the form DSOX1204G,CNnnnnnnnn,xxxxxxxxxxxxxxxx where n is the serial no. and x are alphanumerics.
There is an option to save this to a USB stick - help on this says it is used for redeeming licenses.

[mikeselectricstuff]

The new DSOX1204G runs Linux, so back to square one...

[hv222]

@mikeselectricstuff

Could you add more photos of 4ch version also with key board?

I try to share full schematic of 2ch version. It will be good point to compare both scopes.

[mikeselectricstuff]

@mikeselectricstuff

Could you add more photos of 4ch version also with key board?

I try to share full schematic of 2ch version. It will be good point to compare both scopes.

Not much time at the moment - let me know if there's anything specific

[hv222]

It looks like 4ch scope have bigger NAND memory - 2Gb instead of 1Gb in 2ch scope. All Micron memories was replaced by Winbond. SDRAM memories remains same size.

[fanOfeeDIY]

If the new models going to use Linux and have soft power switch, it is possible to reduce the booting time.

I uploaded the video which it is used on the product. Chatting about the suspend to memory is mentioned in the later in the video.

[mikeselectricstuff]

The new 1204 has a real power switch

[bitseeker]

Hopefully, that's a sign that Keysight equipment designs will be more conscious of vampire power consumption.

[TK]

Hopefully, that's a sign that Keysight equipment designs will be more conscious of vampire power consumption.

Agilent/Keysight scopes always had hard (real) power switches

[mikeselectricstuff]

Hopefully, that's a sign that Keysight equipment designs will be more conscious of vampire power consumption.

Agilent/Keysight scopes always had hard (real) power switches

Nope.

[LapTop006]

If the new models going to use Linux and have soft power switch, it is possible to reduce the booting time.

I uploaded the video which it is used on the product. Chatting about the suspend to memory is mentioned in the later in the video.

Not really, if the system is done well the boot time into application should be sub 5 seconds, getting the analog side ready for use likely takes almost as long, and would be needed on a return from suspend anyway.

[TK]

Hopefully, that's a sign that Keysight equipment designs will be more conscious of vampire power consumption.

Agilent/Keysight scopes always had hard (real) power switches

Nope.

Sorry, I based my conclusion on the 1000X series and the 54622D (and other vintage HP / Agilent instruments)

[vladsol]

So... Have tried someone to patching files in, re-packing and flashing the nk.bin?

after all,  we all are interested in unlocking the licensed features

[IanMacdonald]

Hopefully, that's a sign that Keysight equipment designs will be more conscious of vampire power consumption.

6.5W may not sound much but over a year it adds up to about £8 at UK power rates, so over the life of the item it might add a significant part of its purchase cost.

[vladsol]

I've found (maybe, this is not a news? ) that signature check is done in Agilent.Cdf.Api.Licensing.dl )
I patched this file to skip checking the signature in the license file. Now i need to try to replace this file in nk.bin, and install with the fw update.

[Bud]

Let us know then if that worked...

[FERCSA]

@vladsol It's already done. Only one page back.. and you should find a modified ksx file which activates all the official and unofficial options, later one can't be activated with any license. Also if Keysight really switch over to linux on the 1xx2 series too, it's just not worth the time and effort to dig deeper into the current firmware.

@TK Did you have time to replace your LP filter?

@Mike Any news about a firmware update for the 4ch version?

[TK]

@TK Did you have time to replace your LP filter?

Not yet.  I have the parts in the arrow shopping cart and waiting to order some additional components

[vladsol]

@FERCSA, I apologize, have not seen before. This is great news Thank you!
Installed on DSOX1102G
Serial decoding is working. The power analyzer, unfortunately, does not work.

[Bud]

Keysight EDUX and DSOX are on sale at Element 14. The EDUX is $503 Canuck coins , equivalent of only $383 Yankee bucks. Coupled with the hack in this thread - insane value. Got one, shipping was $20 CAD.

[TK]

There is a Keysight promotion: 15% for scopes <= 200MHz, 25% for >=350MHz

https://www.keysight.com/main/editorial.jspx?cc=US&lc=eng&ckey=3015601&nid=-32110.1203277.00&id=3015601

It does not include the new 4-channel 1000X series

[Bud]

External trigger area, mysterious(no one measured it) cap under LMV7219

Is it on the other side of the PCB ?