All in one v2.8 kit help

[hchriste]

I have build the v2.8 kit by Synthex. It seems to be working just fine. I get the welcome screen. I can browse the menues. It registers fine with windows. Superior 2 accepts it just fine. BUT. all the inputs are going bonanza. Meaning they are all in a constant 127 level. And all pads in Superior is playing in a pace any Death Metal drummer do in his dreams. What is going on?? I cannot find any shorts or deslike.

[dmitri]

I have build the v2.8 kit by Synthex. It seems to be working just fine. I get the welcome screen. I can browse the menues. It registers fine with windows. Superior 2 accepts it just fine. BUT. all the inputs are going bonanza. Meaning they are all in a constant 127 level. And all pads in Superior is playing in a pace any Death Metal drummer do in his dreams. What is going on?? I cannot find any shorts or deslike.

Disconnect it and measure resistance between the ground and each of pins 37-40 of Atmega.

[hchriste]

I have build the v2.8 kit by Synthex. It seems to be working just fine. I get the welcome screen. I can browse the menues. It registers fine with windows. Superior 2 accepts it just fine. BUT. all the inputs are going bonanza. Meaning they are all in a constant 127 level. And all pads in Superior is playing in a pace any Death Metal drummer do in his dreams. What is going on?? I cannot find any shorts or deslike.

Disconnect it and measure resistance between the ground and each of pins 37-40 of Atmega.

They are all approx 4K6

[dmitri]

Is anything connected to the inputs?
Power it up while holding the key RIGHT pressed. Still the same problem?

[hchriste]

Is anything connected to the inputs?
Power it up while holding the key RIGHT pressed. Still the same problem?

I have nothing connected to the inputs.
I tried holding down key right, and only difference it did make was that the LED on the board did not light up. It does so under normal power up.

[dmitri]

Do VU meters show activity on all channels?
Are you sure you have installed 74HC4851 ICs correctly into their sockets, i.e. pin 1 of an IC to pin 1 of a socket?

[hchriste]

Do VU meters show activity on all channels?
Are you sure you have installed 74HC4851 ICs correctly into their sockets, i.e. pin 1 of an IC to pin 1 of a socket?

Yes they seem to be on all channels.
I meassured VCC on all 4 74HC4851. 5V on pin 16, witch is turned against the input connector. Ass far as I can see this is the correct placement in the socket.

[dmitri]

Take all 74HC4851 ICs out of their sockets. Still the same?

[hchriste]

Take all 74HC4851 ICs out of their sockets. Still the same?

Yes that does not change anything.
Actually I just notised that all inputs is on exept for the input this displays in the upper left corner. Dont know if it is input 1 or?

[hchriste]

Could it be that i have some sort of interference from the clock signal onto the inputs?