Yamaha Powered Mixer - EMX512sc - Repair and Test (#013)

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3 years ago
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Yamaha mixer amplifier Repair troubleshooting electronics music

Yamaha Powered Mixer - EMX512sc - Repair and Test
Troubleshooting, Reviewing schematic, Frequency response, THD and Power test.
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TIMESTAMPS:

0:00 - Intro
0:15 - Schematic
4:26 - Power supply PCB
7:14 - Frequency Response test setup
11:58 - Frequency Response CH A 100W sweep
12:36 - Frequency Response CH B 100W sweep
12:55 - Frequency Response results
13:16 - Total Harmonic Distortion test setup
13:58 - THD of channel A output
14:58 - THD of channel B output
15:14 - THD results review
15:46 - Max power test 1kHz into a 4 ohm load
16:50 - Output noise check on oscilloscope
17:19 - Real test of system
18:08 - Outro slide show and music

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