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Yamaha GEP50 User Manual

Yamaha GEP50
100 pages
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Yamaha GEP50 Specifications

General IconGeneral
BrandYamaha
ModelGEP50
CategoryRecording Equipment
LanguageEnglish

Summary

PRECAUTIONS

AVOID EXCESSIVE HEAT, HUMIDITY, DUST AND VIBRATION

Keep the unit away from extreme temperatures, humidity, dust, and vibration.

AVOID PHYSICAL SHOCKS

Handle the unit with care to prevent damage from physical impacts.

DO NOT OPEN THE CASE OR ATTEMPT REPAIRS OR MODIFICATIONS YOURSELF

Do not open the case; refer all servicing to qualified YAMAHA personnel.

MAKE SURE POWER IS OFF BEFORE MAKING OR REMOVING CONNECTIONS

Turn power OFF before connecting or disconnecting cables to prevent damage.

HANDLE CABLES CAREFULLY

Always grip connectors, not cords, when plugging/unplugging cables.

CLEAN WITH A SOFT DRY CLOTH

Clean the unit only with a soft, dry cloth; avoid solvents.

ALWAYS USE THE CORRECT POWER SUPPLY

Ensure the unit's power supply voltage matches the local AC mains supply.

ELECTRICAL INTERFERENCE

Keep the GEP50 away from TVs/radios to prevent interference.

BACKUP BATTERY

Contains a lithium battery for memory retention; replace by qualified personnel.

1: CONTROLS AND CONNECTIONS

THE FRONT PANEL

Details the controls and indicators on the front panel of the GEP50.

POWER Switch

Controls unit power ON/OFF.

INPUT LEVEL Control

Adjusts input signal level with the INPUT LEVEL meter.

INPUT LEVEL Meter

Seven LEDs indicating input signal level from -30 dB to 0 dB.

LED MEMORY Number Display

Shows the number of the currently selected memory location.

LCD (Liquid Crystal Display)

Displays effect titles, parameters, values, and messages.

MEMORY Button

Activates memory selection mode for choosing effect locations.

PARAMETER Button

Accesses and cycles through effect parameters for editing.

Increment/Decrement Buttons

Used to select memory locations or change parameter values.

STORE Button

Stores edited effect parameters into user memory locations.

RECALL Button

Activates the selected effect memory location.

COMPARE Button

Compares edited parameter sound with the original.

INSERT Button

Activates the INSERT loop for external signal processors.

UTILITY Button

Accesses utility functions like title editing and MIDI control.

BYPASS Button

Switches the selected effect ON or OFF.

TUNER OUT Jack

Output jack for connecting a guitar tuner.

INPUT Jack

Connects guitar or other audio source to the GEP50.

THE CONNECTOR PANEL

Details the rear panel connections and jacks.

MIDI IN Connector

Receives MIDI signals for remote effect selection and control.

MIDI THRU Connector

Relays MIDI data received at MIDI IN to other devices.

BYPASS FOOT SW Jack

Connects a footswitch for foot control of the BYPASS function.

MEMORY FOOT SW Jack

Connects a footswitch for sequential memory recall.

R & L OUTPUT Jacks

Provide stereo output signal to amplification or mixing equipment.

INSERT IN and OUT Jacks

Allow connection of an external signal processor into the effect chain.

INPUT Jack

Rear panel input jack duplicating front panel function.

2: GENERAL OPERATION

MEMORY CONFIGURATION

Describes the 100 internal memory locations, ROM and RAM.

SELECTING AN EFFECT/MEMORY LOCATION

Explains how to select and recall effect programs using buttons.

BYPASSING THE EFFECT

USING THE INSERT LOOP

ACCESSING & EDITING THE PARAMETERS FOR EACH EFFECT

USING THE COMPARE FUNCTION

Compares edited parameter sound with the original during editing.

STORING EFFECTS

Details the process of saving edited effect programs to user memory.

3: DESCRIPTIONS OF THE EFFECT PROGRAMS & THEIR PARAMETERS

THE BALANCE AND OUTPUT LEVEL PARAMETERS

Describes common BALANCE and OUT LVL parameters found in all effects.

4: UTILITY FUNCTIONS

TITLE EDIT

Function to create original titles for edited effect programs.

MIDI BANK & CHANNEL ASSIGNMENT

Sets up GEP50 to select programs via external MIDI control.

Bank Selection and MIDI Channel Programming

Guides through selecting MIDI banks and setting receive channels.

Assigning Effects to MIDI Program Change Numbers

Links MIDI program change numbers to GEP50 memory locations.

FOOTSWITCH MEMORY RECALL RANGE

Sets the range of memory locations selectable via footswitch.

5: MIDI DATA FORMAT

1. Reception Conditions

Outlines how the GEP50 receives MIDI signals.

2. Reception Data

Details the types of MIDI data received and their functions.

1) Channel Voice Message

Covers NOTE ON/OFF messages and their effect on GEP50 functions.

3) PROGRAM CHANGE

Explains how PROGRAM CHANGE messages select GEP50 effects.

6: SPECIFICATIONS & DATA

ELECTRICAL CHARACTERISTICS

Lists electrical specifications like frequency response and dynamic range.

INPUT

Details input specifications, channels, level, and impedance.

A/D, D/A CONVERSION

Provides details on analog-to-digital and digital-to-analog conversion.

OUTPUT

Lists output specifications, channels, level, and impedance.

MEMORY

Specifies ROM and RAM memory capacity for presets and user data.

MIDI CONTROL

Details MIDI control functions like program number and note ON/OFF.

FRONT PANEL

Lists front panel controls, display, and jacks.

REAR PANEL

Lists rear panel jacks and MIDI terminals.

MIDI Terminals

Specifies MIDI IN/OUT/THRU connections.

GENERAL

Covers general specifications like power, dimensions, and weight.

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