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- Sun Mar 18, 2018 11:26 am
- Forum: DSO138
- Topic: Trace line at the bottom of the screen, negative V2 voltage
- Replies: 1
- Views: 3874
Trace line at the bottom of the screen, negative V2 voltage
Hello, I soldered my dso138 oscilloscope and powered it. Everything booted up fine but the trace line is at the bottom of the screen and it doesn't react to any signals. I measured the voltages and they are not as they were supossed to be. AV- : -4.42V AV+ : +4.92V +3.3V : 3,303V +5V: 4.958V V1: 0V ...