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Gemini DS-2024 User Manual

Gemini DS-2024
20 pages
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Question and Answer IconNeed help?

Do you have a question about the Gemini DS-2024 and is the answer not in the manual?

Gemini DS-2024 Specifications

General IconGeneral
BrandGemini
ModelDS-2024
CategoryRecording Equipment
LanguageEnglish

Summary

Technical Specifications

Key Specifications

Lists microphone, phono, line inputs, output, impedance, sampler system, dimensions, and weight.

Connection and Operation Guide

Front Panel Controls Overview

Identifies and labels the controls on the front panel of the DS-2024 sampler.

Connection Procedures

Step-by-step guide for connecting microphones, line inputs, outputs, and headphones to the sampler and mixer.

Unit Operation

Power-Up and Source Selection

Instructions for powering on the unit and selecting input sources using the SOURCE SELECTION switch.

Sampler Functions

Sample Recording Procedure

Details on how to record samples, including selecting memory banks and using the START/STOP button.

Sample Playback Modes

Explains how to play back samples in single or repeat modes using the START/STOP button.

Microphone Sampling

Guide for sampling audio directly from a microphone, including indicator lights.

Robo Playback Functionality

Describes the Robo Play feature, how it interacts with selected sources and mutes them.

Sampler Controls

Level, Pan, Cue, and Pitch Adjustments

Explains how to adjust sampler level, pan, cue mode, and pitch controls for optimal sound.

Pitch Control Tips

Provides helpful hints for using the pitch control during recording and playback for desired effects.

Battery Backup and Indicator

Details the battery backup feature for sample retention and the low battery indicator function.

Disassembly Procedures

Top Case and Front Panel Removal

Steps to remove the top case and front panel, including specific screws and knobs.

PCB and Bottom Cover Removal

Instructions for removing the sampler PCB, bottom cover, and various supporting components.

Component Board and Transformer Removal

Guides on removing main PCB, effect PCB, LED PCB, start/stop PCB, mic PCB, and transformer.

Battery Holder Removal

Steps for detaching the battery holder from the unit.

Internal Diagrams and IC Pinouts

NJM4558 Dual Op-Amp

Internal diagram and pinout for the NJM4558 integrated circuit.

SN4/74LS74A Dual D Flip-Flop

Logic symbol and diagram for the SN4/74LS74A integrated circuit.

Common Transistors (2SC2878, 2SA1015, 2SC1815)

Pinout and diagrams for commonly used transistors.

2SA1317 Transistor

Pinout and diagram for the 2SA1317 transistor.

Internal Diagrams and IC Pinouts

NJM78M00 / NJM79M00 Voltage Regulators

Diagrams and pinouts for NJM78M00 and NJM79M00 voltage regulator ICs.

NJM4558DX Op-Amp Diagram

Internal circuit diagram for the NJM4558DX operational amplifier.

SN4/74LS00 Quad 2-Input NAND Gate

Pinout for the SN4/74LS00 integrated circuit.

NJM7805FA Voltage Regulator

Internal circuit diagram for the NJM7805FA voltage regulator.

Internal Diagrams and IC Pinouts

MSM6388GS-VIK IC Diagram

Block diagram and pinout for the MSM6388GS-VIK integrated circuit.

MSM6389RS IC Diagram

Block diagram and pinout for the MSM6389RS integrated circuit.

Wiring Diagram

Power Supply and Transformer Connections

Illustrates wiring for AC input, fuse, power switch, transformer, and battery holder.

Main PCB and Component Wiring

Shows connections to the main PCB, power LED, and sampler mic.

Wiring Diagram

Sample PCB and Sampler Select PCB Connections

Details wiring between the sample PCB, sampler select PCB, and other boards.

Other PCB Connections

Illustrates wiring for Robo Play, Bank LED, and Start/Stop PCBs.

Schematic Diagram

Input Select and Signal Path Schematic

Schematic details for input selection and audio signal flow through the unit.

Control and Power Circuit Schematic

Schematic details of control logic, power supply, and operational circuits.

Schematic Diagram

Sampler PCB Schematic Details

Detailed schematic for the Sampler PCB, including component values.

Control and Indicator Circuit Schematics

Schematic of pitch control, mode selection, battery, and power LED circuits.

Component Value Notes

Explains component notations like F, pF, K, M, and voltage ratings.

Printed Circuit Board Layouts

Main and Sample PCB Layouts

Visual layout diagrams for the Main PCB and Sample PCB.

Power LED and Sampler Select PCB Layouts

Visual layout diagrams for the Power LED PCB and Sampler Select PCB.

Printed Circuit Board Layouts

Bank LED, Start/Stop, Mic, and Robo Play PCB Layouts

Visual layout diagrams for Bank LED, Start/Stop, Sampler Mic, and Robo Play PCBs.

Exploded View of Cabinet

Cabinet Parts List

Component Parts List

Diodes and Zener Diodes

Lists part numbers and descriptions for various diodes and zener diodes used in the unit.

Integrated Circuits (ICs)

Lists part numbers and descriptions for all integrated circuits used in the unit.

Component Parts List

Transistors

Lists part numbers and descriptions for all transistors used in the unit.

Resistors and Capacitors

Lists part numbers and descriptions for resistors and capacitors.

Component Parts List

Capacitors, Connectors, and Packing

Lists remaining capacitors, connectors, and packing materials with their part numbers.

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