Can't calibrate

[West]

Hi, I'm New here and my Englisch is.... I hope you understand me

I've finished my bulid but i can't calibrate it.
See the pictures, it doesn't Show quarters (don't know The correct Word for it) it makes only pikes.
Yesterday i would check it again and for a minit it show's The correct quarter lines on 0,1v and 3,3v. Power on again and the old picture is already there

On 0,1v i only became a flat line but Yesterday it worked for a Minute.

Is the dso defect or what is my mistake?

[jye1]

Some settings are not good (sensitivity is too high). It is suggested to follow the steps and instructions stated in the manual to set the scope.

[West]

If i Set sensivity lower it does only Show a flat Line.
Analog Board set on normal Position and add a servo checker (pwm) it show's The Same wrong Image
Doesn't matter Which sensivity or time i Set

[jye1]

Please do factory default restore and VPOS alignment first. If the problem still persists maybe the analog channel has problem for some sensitivity settings. Check the SENSEL0 - SENSEL3 signals. Please see this post for levels of the signals http://www.jyetech.com/forum/viewtopic. ... 3731#p3731 .

[West]

Levels are okay.

[West]

Thanks for the answer. Banggood send me a New Kit.
First 2 Minutes all fine, i calibrate it nice and after Power it up again i got the Same fckn picture.
I will never buy again a jye tech Product