rakunann444

Hi @attila, Thank you for sharing the thread. I'm surprised to see the exact same case. I checked VREF and VOFF, - VREF1 and 2 were both 2.0V - VOFF1 and 2 were: when 0V offset, both 2V when +2V offset with 500mV/div range, both 3V when -2V offset with 500mV/div range, both 1V (To be exact, when -2.5V offset, "Channel 1 range will be extended" was displayed, so I set it to -2V.) Secondly, I did "Load factory" and checked calibration is not changed. I'm going to buy and replace ADG612. I'll contact you afterwards. Thanks, rakunann444

Hi @JColvin, Thank you for your reply and moving question's section. I'll take a look at the thread you gave me and other threads. Thanks, rakunann444

Hello, Because of my carelessness, I broke Scope 1 by 100V overvoltage.(Scope 2 is alive.) Can I fix it by replacing the ADG612, which is the "Scope Input Divider and Gain Selection IC"? Thanks, rakunann444