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TomWhitwell / TuringMachine

Turing Machine Mk 2 Main Module
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Turing machine CV not working #110

Open Djandy82 opened 5 years ago

Djandy82 commented 5 years ago

I can't find other people whit this problem so i post it here. The cv function don't work and i calibrated it a few times. All the other functions work like it should and i can't find a solution to this cv problem. Mabye someone can guide me in the right direction.

Thonk-Steve commented 5 years ago

Hi, do you mean the CV input?

On Thu, 21 Feb 2019, 16:47 Djandy82 <notifications@github.com wrote:

I can't find other people whit this problem so i post it here. The cv function don't work and i calibrated it a few times. All the other functions work like it should and i can't find a solution to this cv problem. Mabye someone can guide me in the right direction.

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Djandy82 commented 5 years ago

Yes the cv input. I checked the jack socket and it's not the case.

Thonk-Steve commented 5 years ago

So my tip is try this: Turn the big knob fully anti-clockwise and then only send it a positive DC voltage. I don't have a Turing in front of me so can't remember the voltage range, but when it's at either +2.5v or +5v then it'll be in the middle, when it's +5v or +10v you should be locking hard right... make sense? The key is turning the knob fully anti-clockwise first and positive voltage input.

On Thu, Feb 21, 2019 at 8:29 PM Djandy82 notifications@github.com wrote:

Yes the cv input. I checked the jack socket and it's not the case.

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Djandy82 commented 5 years ago

Thanks. It makes sende and i will try this out and hope this tip does the trix.

Djandy82 commented 5 years ago

Hi. I tested your tip a few times and still nothing. Could this be a chip failure?

Thonk-Steve commented 5 years ago

If that is the only thing not working it's a lot more likely to be a soldering issue, could you upload photos of both sides of both PCBs?

On Sat, Feb 23, 2019 at 2:41 PM Djandy82 notifications@github.com wrote:

Hi. I tested your tip a few times and still nothing. Could this be a chip failure?

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