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Interest check on Vicol Audio Maya R2R Volume controller

Would you like to get a bare PCB or a built unit

  • Built unit unbalanced (stereo)

    Votes: 20 29.0%

  • Built unit balanced (stereo)

    Votes: 19 27.5%

  • PCB

    Votes: 30 43.5%

  • More than two channels built unit

    Votes: 0 0.0%
  • Total voters
    69
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#181
Hi Tibi,

Finally, I have fixed the problem by follow your instruction and completed the first test. But there are noise of "po" when changing volume between -15 ~ -16dB as well as between -31 ~ -32dB. What could be the problem? Are these noises caused by a bad relay or any bad component? How to fix the problem?
 
#188
pixelpusher said:
Thanks for your input.
I tried several Philips devices including VR-256. All exhibit the same behavior after programming. All buttons work with the exception of the direct input commands. I tried programming different buttons to those commands as well. One peculiar thing....when you press one of the direct select buttons the controller will freeze up until you press a channel +/- button. After that it will continue to work.
Click to expand...

Quite hard to reproduce, but we have traced down this bug and a firmware update is now available at vicol audio : MAYA - your ultimate volume-controller
Thank you for reporting this to us.

Regards,
Tibi
 
#189
OK, Thanks, I really appreciate your support!
I am ready to update firmware but have a question. Should the Maya be powered up or would it get power from the USBtinyISP? There is a jumper on the USBtiny to be removed in the case of not powering the AVR.
Thanks, Mike
 
#190
pixelpusher said:
OK, Thanks, I really appreciate your support!
I am ready to update firmware but have a question. Should the Maya be powered up or would it get power from the USBtinyISP? There is a jumper on the USBtiny to be removed in the case of not powering the AVR.
Thanks, Mike
Click to expand...

It works both ways. However if you power from USBtinyISP please remove display and relay board and connect USBtinyISP to high current usb port on your PC.

Regards,
Tibi
 
#192
Here are a couple pics of my Maya implementation.
 

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#198
Would any knowledgeable folks here mind taking a look at my Front Panel Express FPD file to help me verify if I have it laid out correctly? It is very similar to the builds done by Lemon and Plan.

pixelpusher said:
Here are a couple pics of my Maya implementation.
Click to expand...

That looks great! I really need to learn to work with wood better!

KC
 

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#199
tvicol said:
Quite hard to reproduce, but we have traced down this bug and a firmware update is now available at vicol audio : MAYA - your ultimate volume-controller
Thank you for reporting this to us.

Regards,
Tibi
Click to expand...

I have updated Maya to latest firmware and we are not quite there yet with respect to this bug. Programming the direct inputs seems to work fine but in use when a direct input button is pressed the display indicates that the change is made but the signal does not change. Sometimes it is attenuated but the same input keeps playing.

I am using two boards in a balanced configuration. The hot signal is connected to the right inputs and the cold signal is connected to the left inputs.
 
#200
pixelpusher said:
I have updated Maya to latest firmware and we are not quite there yet with respect to this bug. Programming the direct inputs seems to work fine but in use when a direct input button is pressed the display indicates that the change is made but the signal does not change. Sometimes it is attenuated but the same input keeps playing.

I am using two boards in a balanced configuration. The hot signal is connected to the right inputs and the cold signal is connected to the left inputs.
Click to expand...

Please see the attached file for programming new firmware.
You are right : the new call did not changes one variable inside that routine , wonder how i did not see it ( me sad ... ).It should be solved now.
Can you test and give feedback to us?
 

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