Search found 13 matches
- Fri Mar 09, 2018 12:38 am
- Forum: DSO138
- Topic: DSO138 3.3V test lead wrong voltage
- Replies: 1
- Views: 3652
Re: DSO138 3.3V test lead wrong voltage
Did you short jp4 and test u3 pins?
- Mon Feb 26, 2018 8:07 pm
- Forum: DSO138
- Topic: Question about test signal voltage on DSO 138
- Replies: 3
- Views: 5319
Re: Question about test signal voltage on DSO 138
Have you looked at datasheet for U1 pin 17 this seems to be where R6 limits currnt? The datasheet migth tell you what good voltage should be there.
- Sun Feb 25, 2018 9:03 pm
- Forum: DSO138
- Topic: DOS TRACE VOLTAGE
- Replies: 2
- Views: 4095
DOS TRACE VOLTAGE
My DOS worked fine for a month, then it failed.I checked it with a meter and found a short in the reference voltage point 3.3v and U1 pin 1. This is duzz because the problem is somewhere in the trace line. I have removed components and the failure is still there. I would like to view a copy of the t...