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Need help?Do you have a question about the Boss RE-20 COSM and is the answer not in the manual?
General| Bypass | Buffered Bypass |
|---|---|
| Technology | COSM |
| MIDI | No |
| Effect Type | Echo |
| Input | 1/4" TRS |
| Output | 1/4" TRS |
| Power Supply | 9V DC |
| Weight | 1.2 kg |
| Power Source | 9V DC |
| Dimensions | 173 mm (W) x 158 mm (D) x 57 mm (H) |
Product cannot save user data; backing up during servicing is not required.
Explains reasons for parts unavailability, including assembly, copyright, or order restrictions.
Defines 'NIU' and notes circuit diagrams show silk-screened indications without components.
Details all physical controls on the unit, including pedals, knobs, and switches.
Lists all indicator lights and specifies connector types and functions.
Outlines input/output levels, impedance, power supply requirements, and current draw.
Lists standard accessories and optional items like manuals and expression pedals.
Lists parts categorized as potentiometers, capacitors, coils, and filters.
Details parts such as fuses, fuse holders, connectors, and wiring/cables.
Lists fasteners, packing materials, LEDs, spacers, and other small parts.
Detailed steps to verify the unit's software version using LED indicators.
Lists required equipment and initial setup for entering the test mode.
Steps for checking software version and LED illumination/current consumption.
Procedures to test volume control operation and EXP pedal functionality.
Tests DSP throughput waveform and measures residual/audible noise levels.
Procedure to confirm the unit operates correctly using battery power.
