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Need help?Do you have a question about the ALLEN & HEATH ZED 420 and is the answer not in the manual?
General| Channels | 20 |
|---|---|
| Mic Preamps | 4 |
| Group Outputs | 2 |
| USB | No |
| Phantom Power | Yes |
| Type | Analog |
| Stereo Inputs | 4 |
| Main Outputs | 2 |
| EQ Bands | 3 |
| Power Supply | External |
Details the requirements and limitations for product warranty claims.
Explains factory implemented changes not critical to basic unit function.
Guidelines for qualified technicians, workshop setup, and accessing service data.
Critical safety procedures for mains power, cords, and fuses.
Instructions for safely opening, working on, and closing the equipment.
Steps for testing, shipping, operation checks, and fault finding.
Process and resources for ordering replacement components.
Visual identification of external components and their part numbers.
Visual identification of internal components and their part numbers.
Details on various screws used for assembly and their part codes.
Key input and output signal level parameters.
Audio performance metrics including frequency range and distortion.
Signal headroom details and USB interface specifications.
Measurements of noise floor for various signal paths.
