Products > Test Equipment
Hantek 2000 series - 2C42/2C72/2D42/2D72
aRGee:
I downloaded the instructions from jace@cs on page 6 of this threat. I only changed R65 to a lower value as my first dac was not working/responding. In case you need the passive smd's, I have some spares as I ordered to much. I can send them to you if you pay the stamp (I live in the Netherlands) The ST-link and ic's I found on ebay/ali. By the way : the dac903 is a 12 bit dac...
plazma:
So it's possible to increase the BW by eiditing the serial number to -70?
And AWG starts working by just adding the components?
This way 2C42 becomes 2D72?
aRGee:
I burned the firmware from the 2d72 (found in this threat) in my 2c42 (with ST link) , followed the comments from microcheap about the calibration and upgraded to the latest firmware. The meter tells me it's a 2d72 (after soldering all components). In my case changing 40 into 70 didn't work, that's why I burned the 2D72 firmware....
KONNEX:
--- Quote from: Microcheap on November 14, 2019, 02:49:56 pm ---One more thing, if you do the AWG mod you will need to calibrate the amplitude of the waveform, there is no need to play with the resistors values as someone posted some time ago. Just install the FW linked below using Dfuse. Use a coax cable to connect Gen Out to CH1 of the device, go to the AWG and set Sine wave, on the second page of the configuration you will see an option "calibrate", select it and it is done. You can now update to the last firmware again.
--- End quote ---
So you mean:
- change 0 Ohms resistor at the output of the OpAmp to 50 Ohms
- change 0 Ohms resistor at pin 3 of OpAmp to 150 Ohms
- change 0 Ohms feedback resistor (at OpAmp left side) to 560 Ohms
is NOT necessary , right?
--- Quote from: aRGee on November 19, 2019, 08:12:44 pm ---I downloaded the instructions from jace@cs on page 6 of this threat. I only changed R65 to a lower value as my first dac was not working/responding. In case you need the passive smd's, I have some spares as I ordered to much. I can send them to you if you pay the stamp (I live in the Netherlands) The ST-link and ic's I found on ebay/ali. By the way : the dac903 is a 12 bit dac...
--- End quote ---
Thanks for the offer.. I'm in germany so this would be somewhat possible and welcome.
For my understaning: EL5166, BAV99 are also necessary, are they included in your offer?
To be honest I just like to work with PCB stuff. I don't know when I ever will use AWG but this would be some option than... ;)
St-link is already ordered.
Microcheap:
--- Quote from: KONNEX on November 20, 2019, 05:47:24 pm ---is NOT necessary , right?
--- End quote ---
Yes, you need to change the resistor for the output opamp and add the missing R65 close to the DAC to enable it. What I meant is that you don't needed to change the value of R61 to adjust the amplitude of the output waveform as described in a previous message: https://www.eevblog.com/forum/testgear/hantek-2c422c722d422d72/msg2241096/#msg2241096
Just calibrate the AWG usign the FW I posted above.
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