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Caution! The device operates on mains voltage, so any attempt to repair it can be life-threatening. You can see the component tester in a box with a mini oscilloscope in more detail at: • DSO 138 Audio test Subscribe to the channel and turn on notifications. New video materials are coming. / banellone For all questions and suggestions, write in the comments. / banellones EVERYONE 00:00 Introduction 00:39 Disassembly and precautions 02:02 Diagnostics 05:41 Trial solution 06:41 Assembly 07:28 Demonstration