East Tester ET3502 LCR-Bridge

[Martin72]

How did you manage that, is there a screenshot function?

RTFM.....Again.

But I think I'll take an extra stick for it, because at the moment every picture is overwritten by the last one.
I also don't necessarily need to have the system message at the bottom left.
But at least it works rudimentarily.

Edit:
Interesting, I couldn't upload it from the stick, the forum software was complaining.
Although .png ending, the image was over 1MB in size....
Then I “edited” it (just opened it with Paint) and saved it again.
And lo and behold, only a few kB left...

[KungFuJosh]

30 seconds to take a screenshot???

Is it scanning 1 pixel at a time? 🤣

[Martin72]

It's not that long after all...
But it could be much shorter if such a picture wasn't over 1MB in size.
I think I need to talk to the guys again, because it doesn't matter what I do, I only ever get the picture from the measurement display, nothing else.
But maybe Dwaine knows how to do it properly.

[mawyatt]

I hated the tweezers that came with the DE5000, so I killed them and used the connector to make kelvin clips instead.

I 100% agree that people should have both smart tweezers and an alternate LCR meter.

Agree, those tweezers are very poor, unfortunately we have them too

We don't use Tweezers of any type often, much prefer the Bench Type LCR Meter SMD fixtures with better repeatability, however if we must measure SMD devices on a PCB then Tweezers are a must!!

One could mate the type that Tonghui uses in the TH26009B and things would be much better, altho not sure where you could find them cheaply, as the TH26009B are ~$180.

Best,

[KungFuJosh]

One could mate the type that Tonghui uses in the TH26009B and things would be much better, altho not sure where you could find them cheaply, as the TH26009B are ~$180.

Yeah, they cost as much or more than smart tweezers. The best price I found for them was $118, but haven't ordered them yet because I don't know if they're legit...and I don't really need them. 😉

[mawyatt]

Yeah, they cost as much or more than smart tweezers. The best price I found for them was $118, but haven't ordered them yet because I don't know if they're legit...and I don't really need them. 😉

They are good tweezers and have a BW of 15MHz, well beyond any of the complete type tweezers we're familiar with.

We've used them with our IM3536 to 8MHz, and happy with results/performance, but then gain they are tweezers and we prefer SMD LCR fixtures.

I wouldn't trust any source that's not a Tonghui certified source, as you don't know what you are getting. They may even say Tonghui with Logo, but who knows where they've been or could be total OEM rejects, or complete counterfeit.

Best,

[Martin72]

Personally, I have no doubt that Sourcetronic's products originate 1:1 from TongHui.
I could find out, but I don't see the point.
Either way, I will buy Sourcetronic accessories for my ET35, even if they are a bit more expensive.
You can still use them for another device, e.g. for an R&S LCX (cough...)...

[KungFuJosh]

I would also rather give Sourcetronic my money instead of Tonghui. I don't trust Tonghui as a direct source either. 😉

I would love an R&S LCX. I bet those are sweeeet.

[Dwaine]

Hi,

Attached screen of the version numbers.

How did you manage that, is there a screenshot function?

Yep there is a screenshot save.   Hit the save button and then the screenshot menu option.   It saves the screenshots as png file.

Can you share the firmware update?

Dwaine

[mawyatt]

I would love an R&S LCX. I bet those are sweeeet.

Me too!! Just maybe a Tonghui Rebrand?

Some of R&S stuff looks suspiciously like Tonghui, especially some of the LCR fixtures

Best,

[KungFuJosh]

I would love an R&S LCX. I bet those are sweeeet.

Me too!! Just maybe a Tonghui Rebrand?

Some of R&S stuff looks suspiciously like Tonghui, especially some of the LCR fixtures

I sincerely doubt R&S would use Tonghui...firmware. The images I've seen certainly look nothing like the Tonghui fw.

I would guess R&S also designs their main hardware. I would not be surprised if they rebrand the fixtures though. They'd obviously not be the only ones. 😉

[Martin72]

Yep there is a screenshot save.   Hit the save button and then the screenshot menu option.   It saves the screenshots as png file.

Can you share the firmware update?

I can give you the firmware, but if you can take a snapshot of every screen until then, I wouldn't use it for now.
I always get a screenshot of the measurement screen and that seems to be “right” at the moment:

dear,the machine can only save the measurement interface and cannot save other setting interfaces. There is only one name for saving the screenshot file. The second save will be overwritten. If you save the second screenshot, you need to copy the first screenshot

I replied that it wasn't that great (although in principle it was correct, because what more could you want than the measurement results), they thanked me very much and we'll see what happens next.
I don't know to what extent this new firmware is responsible for this, so use the file at your own risk.

[Dwaine]

Yep there is a screenshot save.   Hit the save button and then the screenshot menu option.   It saves the screenshots as png file.

Can you share the firmware update?

I can give you the firmware, but if you can take a snapshot of every screen until then, I wouldn't use it for now.
I always get a screenshot of the measurement screen and that seems to be “right” at the moment:

dear,the machine can only save the measurement interface and cannot save other setting interfaces. There is only one name for saving the screenshot file. The second save will be overwritten. If you save the second screenshot, you need to copy the first screenshot

I replied that it wasn't that great (although in principle it was correct, because what more could you want than the measurement results), they thanked me very much and we'll see what happens next.
I don't know to what extent this new firmware is responsible for this, so use the file at your own risk.

I guess your device is updated to a more recent version than mine.

1.  I only have update option, not the 1 select option to update the Main.
2.  The folder name has to be updatefile on the usb key.
3.  My device only accepts a filename of ET35*.upt not hex files.

Maybe I'l send East Tester an email and ask them.

[Martin72]

You certainly know the saying about never changing a running system...
I got the update from ET after I complained about the DHCP option not working.
In the system I have the option of updating three different sectors or all of them.
At the moment I can only take one screenshot of the measuring display and I can only save one image at a time instead of xxx in a row.
If this works with your ET35, I would leave it as it is.
But of course you can ask.

[Martin72]

I would love an R&S LCX. I bet those are sweeeet.

LCX100 is the “smallest” model, but can be upgraded to 10Mhz and graphic display (sweep) via software upgrades.
I don't want to rule out that such a device could be mine one day, but until then I could be satisfied with the ET35.
It doesn't sound that good yet, but it's already pretty good in principle.
I will be demonstrating this in the coming weeks, the device can certainly compete with one from TH/ST.

[Martin72]

The ET3503 arrived today.
There is no difference in the system apart from the model number, i.e. the frequency information is stored somewhere, you just need to know where.
Oh yes, and DHCP doesn't work there either.
Or is it my network, I can't imagine, because all the devices connected to it have DHCP active.
Then why shouldn't the ET35 work...

[KungFuJosh]

What does the network config screen look like?

[w.v.s.]

ET35.MAIN.V2.01.2416.001.hex

Seems these are sold with some other names, too:

Code: [Select]

ET3500A
ET3500
ET3501
4092A
ET3502
4092B
ET3503
4092C
ET3505
4092D
ET3510
4092E
0871
0870
0872
VICTOR 4092A
0880
VICTOR 4092B
0881
VICTOR 4092C
0882
VICTOR 4092D
0883


[Martin72]

How do you get this data out of the hex file?

@Josh:

See pic...
Normally I know that when you activate DHCP, it takes a while and then the network data is “pulled”.
Here the menu remains as it is, regardless of whether it is on or off(DHCP).

[w.v.s.]

I've used

Intel_HEX_2.02 to convert it into a binary:

Code: [Select]

Intel_HEX_2.02/src/hex -o ET35.MAIN.V2.01.2416.001.bin ET35.MAIN.V2.01.2416.001.hex
Intel HEX File Processing Software. Version 2.02. Copyright (C) 2023 Vitalij Fedichev
HEX file reading: 'ET35.MAIN.V2.01.2416.001.hex'
BIN file created: 'ET35.MAIN.V2.01.2416.001.bin'

and strings to extract the strings from it:

Code: [Select]

strings ET35.MAIN.V2.01.2416.001.bin |less

Then I scrolled trough the strings. They are often interesting.

[KungFuJosh]

What happens if you blank out the IP address?

It shouldn't matter, but you can also try using a stricter netmask.

[w.v.s.]

That looks a bit interesting, too:

Code: [Select]

V2.00.2129.001
V2.01.2416.001
V1.10.1520.011
V1.10.1506.002
V1.10.1506.002
F.V2.02.2020.3.7
192.168.0.123
255.255.0.0
192.168.0.1

or

Code: [Select]

Model error,please contact the manufacturer!


[Martin72]

What happens if you blank out the IP address?

Nothing.
Funnily enough, the self-test says that ethernet is OK.

[KungFuJosh]

What happens if you blank out the IP address?

Nothing.
Funnily enough, the self-test says that ethernet is OK.

Maybe it is! Maybe that's literally the only thing the ethernet can do. 😉

[Martin72]

In terms of function, it wouldn't matter, as it can do no more than the two serial interfaces.
But I'm interested in the principle.
It seems to work with Dwaine, his ET35 has an old firmware, so the key must be there.