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RPL1116 (MSO1000Z) and PLA2216 (MSO5000) Active Logic Probe teardown

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joeyjoejoe:
LM7324 is going to be your biggest BOM cost, and then the 4-layer boards themselves (22USD shipped).

I think it's challenging to have someone on Tindie/kickstarter produce this. The demographic is people who are rather experienced/technical, so there's not much value in selling these since most likely the people buying it could make it themselves as well if they wanted to save money. (If they didn't want to save money they'd buy the Rigol unit).

hedehede81:
For my Fluke 289 there was also a proprietary IR serial cable, which after sometime appeared on Taobao as a bootleg. Maybe this can also make its way some day. As you said, finding LM7324 at a reasonable price point is the bottleneck here, Digikey wants to sell 1000 units to you where as for Mouser international shipping is very expensive. I never ordered anything from TI directly, however I doubt they are cheaper for only 4 chips. If there was an alternative board with LM7322 things can be easier since it is available on Ebay. There is an alternative PCB on gitlab for LM7322 but as an unfinished experiment I think?

Noy:
Any news here?
Bugs with the wrong signal (high/low) fixed?

In a few weeks i will build a pod but with the "Classic" design. 1 Pod , 2.54mm IPC cable, 1.27mm socket for using my coax cables from the Ds Logic +. And i want to know If there are still some issues with the schematic? The LMs are expensive so hopefully only one shot.

TopLoser:
Just to try and save people time and effort (and maybe money!)... I have a number of boxed, unopened, Rigol MSO1000Z Upgrade Kits (RPL1116, connecting cable and set of grabbers) for sale.

£95 plus shipping (free UK, £10 anywhere else).

thmjpr:

--- Quote from: Noy on February 04, 2020, 10:12:50 pm ---Any news here?
Bugs with the wrong signal (high/low) fixed?

In a few weeks i will build a pod but with the "Classic" design. 1 Pod , 2.54mm IPC cable, 1.27mm socket for using my coax cables from the Ds Logic +. And i want to know If there are still some issues with the schematic? The LMs are expensive so hopefully only one shot.

--- End quote ---

If you are using the Kicad design you will have to fix the swapped +/- of some of the differential signals.

Micro-coax probes is a good idea, although the dslogic has embedded resistance in the connector. So you could consider what effect that has on the signal levels and signal integrity.

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