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Title: Hantek DSO-5202B No signal and no buttons [Print this page]

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Author: Rogerm    Time: 2017-11-13 20:54
Title: Hantek DSO-5202B No signal and no buttons
Hello:
I have a DSO-5202b SN 22*** HW1.01 and the buttons do not work and the signal does not appear on the screen.
The source voltages are fine, reprogram the nand flash backup and it remains the same.
Do you have any idea what it can be?
Thank you.

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Author: Rogerm    Time: 2017-11-14 06:22
From what I discovered is the 100mhz quartz crystal 100 MHz oscilador de cristal de 3.3 V 4-SMD 7050 ppm 100 MHz 100.000 MHz de alta frecuencia 7.0*5.0mm 4 P SMD SPXO YSO751SR/YXC.
O7050100MEDA4SC.
I'm going to buy it and I'll tell you.
It will take me a month to come.

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Author: Rogerm    Time: 2017-11-14 07:03



[attach]1792[/attach]

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Author: amy    Time: 2017-11-14 10:41



Sir, please give me a short video of your problem to study.

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Author: Rogerm    Time: 2017-11-16 10:37


Hello:
I put a YouTube video of a boy who has exactly the same problem that I do the same does not pay attention to the buttons or the yellow signal.
If I remove the 100mhz crystal,the buttons make some case.
Sorry for my English.
I am Spanish.

https://www.youtube.com/watch?v=oKeaTml1rhY

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Author: amy    Time: 2017-11-16 14:42


If the problem is the same the YouTube video.
Maybe the chip (U702) is fault. The model of the chip is EPM240T100C5. And it need to be burned CPLD program.
[attach]1827[/attach]

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Author: Rogerm    Time: 2017-11-16 21:11


Go, then to throw the oscilloscope, to get the software will be impossible.
I put a new crystal of 100 MHZ and nothing remains the same.
Without glass the buttons obey something.
With a 50MHZ crystal it worked for about 2 minutes and then it locked again.
I have ordered an EPM240T100C5.
To continue repairing.
I do not know where to get the software for the EPM240T100C5
Greetings and thank you.

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Author: Rogerm    Time: 2017-11-17 10:33
I worked 5 minutes once, I do not understand anything.

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Author: amy    Time: 2017-11-17 16:52

Rogerm replied at 2017-11-17 10:33
I worked 5 minutes once, I do not understand anything.

Sir, we can send the software for the EPM240T100C5. But need an expensive tool to program the CPLD software.
You can consult with your seller to return factory for repair or repalce it.

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Author: Rogerm    Time: 2017-11-17 18:42


Hello:
If you can send me the software, I thank you, I'll try to program it.

From what I see you can program it put on the plate the  EPM240T100C5.
I have the Altera USB Blaster that is compatible with Altera Max II

Thank you very much for your time.

marcudios@yahoo.es

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Author: amy    Time: 2017-11-20 08:39

Rogerm replied at 2017-11-17 18:42
Hello:
If you can send me the software, I thank you, I'll try to program it.

Sir, I have sent the software to your email. Please check.

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Author: Rogerm    Time: 2017-11-20 11:23
Thank you.
I have already received the file as soon as the EPM240T100C5 chip arrives and I got it programmed and welded it to him.

A greeting.

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Author: Rogerm    Time: 2017-11-21 22:31
Hello:
I have already changed the EPM240T100C5 and programmed and continue doing the same.

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Author: Rogerm    Time: 2017-11-22 03:40


Can it be the FPGA EP3C5F256C8N? I think this is the chip that carries.
Do you have the file?
To try.
Thank you

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Author: amy    Time: 2017-11-22 08:25

Rogerm replied at 2017-11-22 03:40
Can it be the FPGA EP3C5F256C8N? I think this is the chip that carries.
Do you have the file?
To try ...

Sir, are you sure the software of EPM240T100C5 is programmed successfully?
Please give us a video of current fault phenomena.

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Author: Rogerm    Time: 2017-11-22 11:28
[attach]1832[/attach]

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Author: Rogerm    Time: 2017-11-22 11:41
The video is: https://youtu.be/2Bd0qEY6vcc
It does the same as always.

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Author: amy    Time: 2017-11-23 13:44

Rogerm replied at 2017-11-22 11:41
The video is: https://youtu.be/2Bd0qEY6vcc
It does the same as always.

Sir, the video was released for a long time. There are some bugs inside, not your problem.
I can't understand your problem clearly.
Please give me the video fo your scope.

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Author: Rogerm    Time: 2017-11-23 14:35


Hello:
the video was Posted on Nov 21 2017 when you told me.

You can check that it's in my name.
It's from my oscilloscope.
If you want, I send the video to some place.
I could pass the file of fpga to try, if not already I leave it without repair.
And I buy another one.
Thank you for your patience

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Author: Rogerm    Time: 2017-11-23 14:45


I put in the title of the video: fault oscilloscope Hantek Dso-5202b for Amy.
So you can see what mine is.
The video is: https://youtu.be/2Bd0qEY6vcc
you can check wherever a video like mine does not exist it's my original



The problem is:
As you turn it on it stays the same as in the video, it does not do anything as it is blocked.

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Author: amy    Time: 2017-11-23 16:00

Rogerm replied at 2017-11-23 14:45
I put in the title of the video: fault oscilloscope Hantek Dso-5202b for Amy.
So you can see what mi ...

Sorry, sir. I saw the video.
Before program the EPM240T100C5, have you replaced the 100Mhz quartz crystal?

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Author: Rogerm    Time: 2017-11-23 18:10
if I put the new one before programming it

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Author: amy    Time: 2017-11-24 09:27

Rogerm replied at 2017-11-23 18:10
if I put the new one before programming it

We only can suspect that the two components are problematic. The rest can't be judged。
Please try to contact your seller to return factory for repair.

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Author: Rogerm    Time: 2017-11-24 19:45

Hello:
I'm not going to send it from here the shipping is very expensive, I'll have to buy a new mainboard or oscilloscope.
I have to search if they sell the new mainboard.
A greeting.














Hello:
I'm not going to send it from here the shipping is very expensive, I'll have to buy a new mainboard or oscilloscope.
I have to search if they sell the new mainboard.
A greeting.

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