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by S9RKAN
Wed Aug 26, 2015 1:44 pm
Forum: DSO138
Topic: DSO138 troubleshooting - No AV- (no trace)
Replies: 97
Views: 275912

Re: DSO138 troubleshooting - No AV- (no trace)

Good day! When you start the device, there is smoke and burn the transistor Q1. Then the screen is loaded, but there is no trace. Change the transistor - again burns! What could be wrong? What settings should pay attention to?I do not have time to be measured before the transistor burns. :? I have ...