sorry, i cant speak english very well...
I have same problem..
+5V - OK
+3,3V - OK
AV+ - OK cca 5V
AV- not work > +0,7V, must be -5V
problem is Q1 and Q2???
OS work, display ok.. only no trace....
Search found 11 matches
- Wed Jun 03, 2015 9:45 am
- Forum: DSO138
- Topic: V- no output and wrong Wafeform readouts display
- Replies: 4
- Views: 8167