I have no trace on my DSO138 Oscillioscope. I have measured the following voltages. I see that some of them obviously is not correct, by I am lost as to where the fault might be. The trigged LED also blinks slowly in test mode.
Code: Select all
AV- -4.33
AV+ 5.00
+3.3V 4.10
+5V 4.97
V+ 6.55
OSC 2.78
V1 -1.83
V2 -1.35
V- -5.01
+3.3V 3.98
D1 0.11
D2 7.23
R38 Left 4.75
R38 Right 6.12
R39 -1.80
R40 0.97
L1 -5.00