Question about test signal voltage on DSO 138
Posted: Mon Feb 19, 2018 1:28 am
Hello JYE1,
I have a question about the test signal voltage on my DSO 138 (which is genuine). I get 1.6V on the test ring and not 3.3V as is said on the PCB - is that normal?
I did do the modification to reduce the noise, could that be the reason and is 1.6V ok or there is something I should check? I tested with my voltmeter and each side of R26 and I get 1.6V everywhere including the test ring?
Everything else seems to work fine with my DSO 138 and my signal generator (FG085).
Thank you for your advice!
I have a question about the test signal voltage on my DSO 138 (which is genuine). I get 1.6V on the test ring and not 3.3V as is said on the PCB - is that normal?
I did do the modification to reduce the noise, could that be the reason and is 1.6V ok or there is something I should check? I tested with my voltmeter and each side of R26 and I get 1.6V everywhere including the test ring?
Everything else seems to work fine with my DSO 138 and my signal generator (FG085).
Thank you for your advice!