I am new here , And I ask for help.
Unfortunately, it does not work , DSO150 Analogue Board wrong.
Checkpoint V4. +1.61 V in lieu of wrong - +3.5 V
Checkpoint V3. 0 V in lieu of wrong - +3.2 V
Stable power supply 9V , all panel items verifyed !
Sorry for my english Language is not good , thanks and my greeting.
