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General| Brand | Alto |
|---|---|
| Model | L-20 |
| Category | Music Mixer |
| Language | English |
Features of input channels, including EQ, faders, and I/O.
Features of the master output, effects, and monitoring.
Details on mono, stereo inputs, and impedances.
EQ, DSP, and Main Mix specs.
Voltage, consumption, and fuse details.
Schematic for the first AUX return channel.
Schematic for the second AUX return channel.
Schematic for the third AUX return channel.
Schematic for the fourth AUX return channel.
Schematic for the first AUX send channel.
Schematic for the second AUX send channel.
Schematic for the third AUX send channel.
Schematic for the fourth AUX send channel.
VU meter and control room output schematic.
Input/output section schematic for the UDASP module.
Schematic for the effects output.
Required test equipment.
Step-by-step testing of product functionality.
Procedure for testing frequency response.
Procedure for testing DSP functionality.
Listening test and noise check.
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