DSO 138mini no trace
Posted: Fri Jul 26, 2019 10:19 am
Purchased and assembled DSO138 Mini,
Unfortunately, there is no display of the waveform, as well as the values of the signal parameters.
When the test signal J4 is connected to the terminal, the waveform is not displayed (there is a signal on the terminal, verified by a third-party oscilloscope), as well as the values however, the LED on the back of the digital board starts flashing. When switching the switches of the CPL SEN SEN2 ranges, the corresponding banners change. Like SEL "-" "+" OK.
Values of control points:
V+ 4,3V
V- -3,5V
AV- -3,49V
AV+ 4,27V
V2 1,07V
V3 2,11V
V4 -1,06V
V1 0V
I suspect that the firmware installed in the board is faulty.
At loading the FB version is displayed: 113-13810-111
Maybe someone will explain how to replace the firmware. and where you can get it.
At the forum, unfortunately, I did not find this moment.
Unfortunately, there is no display of the waveform, as well as the values of the signal parameters.
When the test signal J4 is connected to the terminal, the waveform is not displayed (there is a signal on the terminal, verified by a third-party oscilloscope), as well as the values however, the LED on the back of the digital board starts flashing. When switching the switches of the CPL SEN SEN2 ranges, the corresponding banners change. Like SEL "-" "+" OK.
Values of control points:
V+ 4,3V
V- -3,5V
AV- -3,49V
AV+ 4,27V
V2 1,07V
V3 2,11V
V4 -1,06V
V1 0V
I suspect that the firmware installed in the board is faulty.
At loading the FB version is displayed: 113-13810-111
Maybe someone will explain how to replace the firmware. and where you can get it.
At the forum, unfortunately, I did not find this moment.