JYE Tech Forum

Hey veda i had the exact same issue. I couldn't figure it out at all, i tried everything banggood and the jye forums couldn't help but by total accident it got figured out. I was using a 9 volt alkaline battery with a regular t type connector to the 50mm power jack not the JST connector. When i woul...

Hello, Ive had my DSO 138 for about 6 months now and from one use to the next the test ring signal started showing a 1.7V sawtooth signal and my trace started drifting from the center line. My power Supply is a 7.6v Lithium Ion battery hooked up to a step up voltage converter set to 12V. Ive had the...

Hello i was encountering the same issue when using a 9v alkaline battery on a holder with a switch to power my scope. I realize you said you already changed your power supply. However i got a lithium ion power supply at 7.4V and used a step up converter to get it 12 volts and ever since I've been ok...

My trace slowly drifts from the center line as I'm doing measurements, and when i switch trigger mode from auto to normal and back to auto my trace drops way out of the boundaries of the screen I then have to do the 0V alignment and bring the trace back down. But the trace is constantly dropping out...

My trace slowly drifts from the center line as I'm doing measurements, and when i switch trigger mode from auto to normal and back to auto my trace drops way out of the boundaries of the screen I then have to do the 0V alignment and bring the trace back down. But the trace is constantly dropping out...

So i flashed the scope and everything is back to normal now, guess it might have been a bug or a glitch in it.

yes i did, all my voltages are present however at vc2 and vc1 they were off by -1v not sure much that matters. i just find it really weird it dropped out of nowhere, i was working on a system that was less than 15v

Hello Ive had my DSO 138 for about a week now and its been working better than i could have ever imagined. But all of a sudden yesterday the trace dropped out its at the very bottom and the offset and trigger can't be moved no matter in what setting. I've tried all different leads, I've checked the ...