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DSO2D10 oscilloscope error code 511d6

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Post time 2022-1-12 08:26:24 | Show all posts |Read mode
My DSO2D10 oscilloscope CH#2 is reading lower than Ch#1. I did a ?self-Calibration check and it displayed the error code = 511d6.
Please tell me what should I do next


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Post time 2022-1-12 11:31:24 | Show all posts



Please disconnect all signal connections, and perform self-calibration 30 minutes after power on.

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 Author| Post time 4 day(s) ago | Show all posts
Edited by Lam at 2022-1-18 04:48

Received new firmware to flash but got worst than before.  
  I updated FLASH correctly follow the instructions and files sent to me. I check the oscilloscope CH#1 and CH#2.  They are worse than before.
That was NOT successful.  I have the same error code:  511d6  again when activate Utility->Calibration->Offset  (no inputs connected and 30 minutes warm up).
CH1 : zero line is lower than the zero scale by 800mV ( "ZERO" button) and when connected to the test square ware it is reading lower (4V not 5V)
CH2: zero is good but  test 5V square wave it is reading very lower by about 50%.
Firmware loaded : 3102

what is   error code:  511d6   means ?

*****Need further help please *****














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Post time 3 day(s) ago | Show all posts
Lam replied at 2022-1-18 03:20
Received new firmware to flash but got worst than before.  
  I updated FLASH correctly fol ...

Repair recommended.
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