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General| Type | Digital Delay |
|---|---|
| Input Impedance | 1 MΩ |
| Output Impedance | 1 kΩ |
| Controls | Delay Time, Feedback, Effect Level |
| Inputs | 1/4'' phone jack |
| Outputs | 1 x 1/4" Mono, 1 x 1/4" Stereo |
| Power Supply | DC 9V (PSA-series adapter) |
Filters input signal to prevent aliasing and smooth output.
Compresses input range, extends ADC range, restores original range, improves S/N.
Converts analog voltage to digital data using successive approximation.
Trigger interval shorter than max delay sets delay to max.
Trigger interval longer than max delay returns address to start.
Check A/D cycle, D/A cycle, and RAMs for abnormal delay sound.
Method to fix all data bits to "1" or "0" for easier diagnosis.
Visual examples of RAM failure showing waveform outputs.
Calibrate LED level meter by adjusting RT8 for OdB indication.
Adjust RT9 for a straight DC level on TP-1 for compressor.
Adjust RT12 for OV reading at TP-3 for CV offset.
Adjust RT14 and RT13 for specific clock frequencies for FINE settings.
Adjust RT15 (AD BIAS) for symmetrical waveforms on IC21.
Adjust RT10 for a straight DC level on TP-2 for expander.
Adjust RT11 for infinite repetition (regeneration) of signal.
Components related to the unit's physical casing and structure.
List of diodes used in the device.
List of transistors used in the device.
List of FETs used in the device.
List of switches, including power and selector types.
List of potentiometers and their values.
List of resistor arrays.
List of input/output jacks and connectors.
List of knobs and buttons for user interface.
List of fuses and their holders.
List of integrated circuits used in the device.
List of power transformers.
List of AC power inlet connectors.
Miscellaneous parts like heat sinks and flat cables.
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