FNIRSI sent me this DSO-510 free of change in exchange for an honest assessment.
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https://amzn.to/4s7gEz0The DSO-510 is a 2 in 1 device featuring a single channel oscilloscope and signal generator. After playing around with it for a bit I immediately recognized its potential as an all in one signal tracing solution for audio repair. A Denon PRA-1000 preamp with one faulty channel was a perfect candidate for testing out this little device.
00:00 Introduction
00:19 FNIRSI DSO-510 Introduction
01:02 Reproducing the Issue
02:08 Signal Tracing Strategy
03:42 Unboxing the DSO-510
05:49 Baseline Setup
12:23 Testing the Signal Generator Function of the DSO-510
12:45 First Look Inside of the Denon PRA-1000
13:16 Signal Tracing Begins
20:56 Testing the Suspect Resistors
22:39 Transistor Replacement
23:31 Verification Testing
24:37 Conclusions About the DSO-510
25:24 Outro