FNIRSI DSO-TC3 Teardown
Вставка
- Опубліковано 27 сер 2024
- Part 2 of my review on the FNIRSI DSO-TC3. This time I check the accuracy of the DC voltage measurements and do a teardown.
You can purchase the TC3 here:
bit.ly/3yh1C2G
Please leave me comments if there is something else you would like me to test and a thumbs up if you found the video useful :). Please subscribe to be notified of future videos.
Instead of drilling holes in a plastic case for banana connectors, you can make a small PCB for ZIF socket with connectors for your tester.
That is not a bad idea :)
This is a nice bit of kit, far better when you upgrade the firmware to version 3. Thank you for taking the time to show this tool.
Glad you liked it. Will definitely do the upgrade.
Appreciate this feedback & details.
Most welcome
Thank you very much!
You are very welcome :)
Thank you for this interesting review.
You are most welcome
Mine should arrive within a few days. Can't wait!
I think you will enjoy using it :)
@@ElectroBananasYT Yes, thrilled with it. Excellent build quality too. 55 euro including the scope probe kit.
2mm jacks would be the way to go for the SMD adaptation.
I would like to see the banana connectors mod! I already ordered the TC3 but will arrive in a month to Argentina. I’m a little bit worried about sampling wobbling, but it’s fine for the price. Thank you for review it
You are most welcome. I will share another video when I make the mod :)
Thank you for your video. I have a question. Where did you buy the yellow handle opening tool? Please let me know.
Bought it in an electronics market when I visited Tokyo on holiday. Not seen them online 😞. I am planning to take another trip to Japan in July, if I see more I will definitely buy more.
I'm curious if there's a way to smooth out the signal a bit. I mean have you noticed it kind of shifts around when measuring? it's not as steady as a real more expensive one, so I imagine maybe there's a floating resistor that can pulled high or low.
or maybe a capacitor can be added. I dunno something...
Hello Drew, thanks for your comment. I doubt it very much. I think the issue is inherent in the design. If it was that easy to resolve, I am sure FNIRSI's R&D department would have done it. I still think this is a great device for the money.
@@ElectroBananasYT I have one of these, and having nothing connected, I'm getting a continuous pattern. I'm guessing whatever tiny bit of noise is registering is the smoking gun here.
That is quite normal to see on digital scopes.
Wonder what part i fried by accidentally sending a voltage to the ZIF socket?? Id like to repair it if possible. Only activity i can see now is the Charge LED while plugged in. Any help would be much appreciated. Thanks for your upload.
I have a similar problem. My device failed on the day I received it, just tested 2 caps and the oscilloscope function. Suddenly turned off and seems that doesn´t receive charge.
Oh no. Were the caps discharged? Try reaching out to FNIRSI for guidance, I have found them to be very responsive and helpful. Wishing you the best.
Thank you. Maybe one capacitor could not be full discharged. Anyhow connected an external power supply to the board and the tester woke up. All functional now except the components tester. I got 50% refund from the seller.
But how easy does it blow up? My last cheap meter lasted 7 days
Note that this is not a multimeter, it is a component tester with a basic scope and signal generator attached. As such, it does not have the same input protection as a multimeter does. As with most components testers, you will kill them my using it to test a capacitor that has not been discharged first.
Thank you very much.
You are welcome!
Hello. In measurement, can you measure the esr of a capacitor? Or not?
Yes, of course.
Yes. When measuring capacitance it also displays Vloss and ESR,
Ok, friends ✌😉👍
DSo tc3 capacitor was short circuited while measuring..no screenshot, the device does not turn on..help please
Try contacting FNIRSI, they are quite responsive. fnirsiofficialcs@gmail.com
can you tell me what the component is at your right thumb at 11:30 please SOT23- I took off afew components to repair mine and the photos i took can't make out clearly the component markings please?
Hi, Assuming you are referring to Q4, it is marked 1AM and is a MMBT3904 general purpose NPN transistor. Good luck with fixing it Andy.
Hello, Can it be used in automotive diagnostics? Does it support CAN, LIN and FlexRay protocols? And if not so what is the affordable one do you recommend for automotive repair?
Hello, no it is not designed for automotive diagnostics so does not support those protocols. Sorry I am not familiar with automotive repairs.
i buy this one, its awesome, but after charging doenst work any more, u know whats the problem is?
Try contacting them at fnirsiofficialcs@gmail.com
They are quite responsive
Great to see how easy it is to replace the battery, and you do not need to solder, it has a connector, the build quality looks very good.
I love to see some upgrades, like installing banana sockets.
Thanks for the comment, yes the quality is excellent for the price. Yes hopefully will make some mods in the next few weeks.
@@ElectroBananasYT Is there any marking on the display flex cable?
10:39 - Probe compensation?
Could be! Thanks for the thought :)
Hello i got the same device mines burnt out with a capacitor accidentally. The little chip on location u6 is burnt out. Now i want to try to ad a new chip but i can,t read the chip anymore.... Would you check for me what type it is?.... (chip number) Thanks in advance if you would like to do this for me 😊👍✌
Hello, U6 has the marking V05. It is an SRV05-4 ESD protection diode array. It is oriented such that pin 5 is next to the text “D1” on the PCB.
@@ElectroBananasYT Hello thank you now can i try to repair it. :) The cos724 (quad opamp) was also going to overheat now i have removed these 2 bad chips. After this remove the oscilloscope is still working the signal generator i didn,t test it because you can,t use them simultaneously on the DSO-TC3 and I don't have another oscilloscope. Thanx. 😊👍
Most welcome, good luck with the repair and please do subscribe 😊
@@ElectroBananasYT Fixt it works again. 👍
Well done! Not easy soldering SMD devices. What did you have to replace in the end?
Hi, does it have ATMEGA 328?
Hello, as the microcontroller has had its markings removed we can't tell what type it is. However judging by performance of this device and the number of pins on the microcontroller, I think it is safe to say that in is not a 328.
@@ElectroBananasYT thanks, may be an STM32. Now there are Arduinos with STM32
Firmware V0.3 for dso tc3
That is good to know, thanks. Will try an upgrade.
коментарий для продвижения.канала.Благодарю
untuk u10 berapa nilainya
COS 724. It is a quad low power 10MHz operational amplifier.
thank
Connector is a let down, just junk
contrary to what yt tells you we actually like long videos. who wants a 6 second attention span?🤔 not i sir thanks for the information
Hi Michael, so nice of you to say. Appreciate the feedback. It is quite difficult to review something like this properly without taking the time.
Wonder what part i fried by accidentally sending a voltage to the ZIF socket?? Id like to repair it if possible. Only activity i can see now is the Charge LED while plugged in. Any help would be much appreciated. Thanks for your upload.
Sorry to hear that. If there is no display and no beeps when you press the buttons then most likely the microcontroller is damaged. Second perhaps the power system is damaged. If the microcontroller is damaged, then i doubt that it would be a viable fix 😢
@@ElectroBananasYTI still get the beeps on button presses and the charge status led seems to work properly. Maybe I can find a schematic for it.
You earned a sub though for your reply. Thanks.
That is good to hear. See if you can switch on the function generator. If you can there is a *possibility* that just the display module is damaged. Perhaps you can get one from FNIRSI, their customer service is quite good.
@@ElectroBananasYT Their CS is so good they sent me a new one in like 72 hours. I just haven't had the time to go through both of them at the same time.
Yes the generator throws out a 1kHz Square soon as it's turned on. I already hooked a speaker up to it to compare to the new one.
That is excellent news! 👏👏