Please select To the mobile version | Continue to access the desktop computer version

Electronic Engineer Discuss

 Forgot password?
 Register

扫一扫,访问微社区

View: 65|Reply: 9

Hantek DSO-5202B No signal and no buttons

[Copy link]

1

Threads

8

Posts

8

Credits

新手上路

Rank: 1

Credits
8
Post time 5 day(s) ago | Show all posts |Read mode
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.

Reply

Use magic Report

1

Threads

8

Posts

8

Credits

新手上路

Rank: 1

Credits
8
 Author| Post time 4 day(s) ago | Show all posts
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.
Reply Support Not support

Use magic Report

1

Threads

8

Posts

8

Credits

新手上路

Rank: 1

Credits
8
 Author| Post time 4 day(s) ago | Show all posts
Edited by Rogerm at 2017-11-14 07:12




This post contains more resources

You have to Login for download or view attachment(s). No Account? Register

x
Reply Support Not support

Use magic Report

12

Threads

803

Posts

964

Credits

实习版主

Rank: 7Rank: 7Rank: 7

Credits
964
Post time 4 day(s) ago | Show all posts



Sir, please give me a short video of your problem to study.
Reply Support Not support

Use magic Report

1

Threads

8

Posts

8

Credits

新手上路

Rank: 1

Credits
8
 Author| Post time The day before yesterday 10:37 | Show all posts
Edited by Rogerm at 2017-11-16 10:50

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



Reply Support Not support

Use magic Report

12

Threads

803

Posts

964

Credits

实习版主

Rank: 7Rank: 7Rank: 7

Credits
964
Post time The day before yesterday 14:42 | Show all posts
Edited by amy at 2017-11-16 14:46

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.



This post contains more resources

You have to Login for download or view attachment(s). No Account? Register

x
Reply Support Not support

Use magic Report

1

Threads

8

Posts

8

Credits

新手上路

Rank: 1

Credits
8
 Author| Post time The day before yesterday 21:11 | Show all posts
Edited by Rogerm at 2017-11-17 02:55

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.












Reply Support Not support

Use magic Report

1

Threads

8

Posts

8

Credits

新手上路

Rank: 1

Credits
8
 Author| Post time Yesterday 10:33 | Show all posts
I worked 5 minutes once, I do not understand anything.
Reply Support Not support

Use magic Report

12

Threads

803

Posts

964

Credits

实习版主

Rank: 7Rank: 7Rank: 7

Credits
964
Post time Yesterday 16:52 | Show all posts
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.

Reply Support Not support

Use magic Report

1

Threads

8

Posts

8

Credits

新手上路

Rank: 1

Credits
8
 Author| Post time Yesterday 18:42 | Show all posts
Edited by Rogerm at 2017-11-17 19:04

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








Reply Support Not support

Use magic Report

You have to log in before you can reply Login | Register

Points Rules

QQ|Dark room|Mobile|Archiver|Electronic Engineer Discuss

2017-11-18 03:23 GMT+8 , Processed in 0.131250 second(s), 23 queries .

Powered by Discuz! X3.2

© 2001-2013 Comsenz Inc.

Quick Reply To Top Return to the list