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Yamaha D-1500 User Manual

Yamaha D-1500
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Yamaha D-1500 Specifications

General IconGeneral
TypeDigital Delay
Dynamic Range90 dB
Power SupplyAC 120V, 60 Hz
Input Impedance10 kΩ
Inputs1 x 1/4" Phone
Outputs1/4" jack (mono)
Dimensions480 x 47 x 270 mm

Summary

Specifications

Pre-Set Memory Data

Block Diagram

Disassembly Precautions

Adjustments

Clock Adjustment

Adjusts the clock frequency to 512kHz for stable operation.

Gain Control Offset Adjustment

Adjusts gain control offset to minimize waveform steps and noise.

Diagnostic Programs

ROM and RAM Check

Checks ROM and RAM integrity, indicating potential defects.

7-Segment LED Check

Verifies operation of 7-segment LEDs and LFO RATE LED.

Key Operation Check

Tests the functionality of all keys on the unit.

Return to Normal Operation Mode

Returns the unit to standard operating mode from diagnostic mode.

Special Functions

Special Functions Overview

Details key functions like preset loading, MIDI clearing, and software info display.

Printed Circuit Board

Exploded View

Mechanism Parts

Lists and illustrates mechanical components of the unit.

Electrical Parts

MIDI Implementation Chart

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