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    Home » GEWA UP355 88 Keys Black Digital Piano Intructions Manual
    GEWA

    GEWA UP355 88 Keys Black Digital Piano Intructions Manual

    By Gabriel SmithOctober 13, 2025Updated:October 14, 2025No Comments10 Mins Read
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    GEWA-logo

    GEWA UP355 88 Keys Black Digital Piano

    GEWA-UP355-88-Keys-Black-Digital-Piano-Product

    Introduction

    Thank you for choosing a digital piano from GEWA Music! You have chosen a high-quality digital piano that will give you an impressive sound experience and lots of fun. Additional functions extend the capabilities of your digital piano far beyond piano playing.

    Your safety is very important to us! Please read the safety information carefully and pay close attention to it. Retain this manual and hand it over to the respective user.

    The manufacturer is not liable for personal injury or property damage resulting from improper use of the device! Only use your digital piano as directed!

    Overview

    GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-19

    Diagram AGEWA-UP355-88-Keys-Black-Digital-Piano-fIG-20
      • A1 USB IN/OUT
        Connect a USB stick or another USB device here.
      • A2 Headphone sockets
        Connect one or two sets of headphones here.
    Fig BGEWA-UP355-88-Keys-Black-Digital-Piano-fIG-21
      • B Pedal cable socket
        Connect the pedal cable here.
    Diagram CGEWA-UP355-88-Keys-Black-Digital-Piano-fIG-22
      • C1 LINE IN
        This port is for external sound source playback (e.g, MP3 players) through the speaker system via a 3.5mm jack socket.
      • C2 SUSTAIN
        You can connect a standard sustain pedal to this 6.3mm jack socket if you want to use our digital piano with an external stand.
      • C3 LINE OUT L/R
        This connection is split into the stereo channels L(left and R(right). Using the 6.3mm jack cables, you can connect these outputs to a receiver, e.g., an amplifier or a recorder.
      • C4 MIDI IN/OUT
        Connect MIDI devices here.
      • C5 USB-B Connection
        Connect your digital piano to your PC via this connection.
      • C6 Power Supply
        Connect your digital piano to the power supply here, using the power cable.
    Fig D
    GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-18
    • Sustain Pedal (right side)
      The Sustain- or Damper Pedal on an acoustic grand piano lifts all the dampers that sit on the strings. Thereby, all played notes continue to sustain after the keys are released. Furthermore, all the other strings can freely resonate, so their frequencies contribute to a richer sound. All this is simulated by the pedal of your Gewa piano. It is also possible to play with half pedal, which means the simulated dampers are only lifted slightly, so that the sustaining notes are decaying faster than with the pedal fully depressed.
    • Sostenuto Pedal (middle position)
      The Sostenuto Pedal resembles the Sustain Pedal. The only difference is that only those notes are sustained whose keys were being depressed at the moment of actuating the pedal. All the other notes are dampened as usual.
    • Piano Pedal (left side)
      When the Piano- or Una Corda Pedal is being operated, the GEWA Piano simulates shifting the keyboard action slightly to the right. The altered striking line of the imaginary piano hammers results in a differently colored tone and a slightly softer volume

    KEY

    The following symbols are used in this operating manual to identify hazards and notes:

    GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-23

    Use

    • Devices for audio playback (as input or output) or for data communication can be connected. However, the respective technical specifications must be complied with (see the section „Technical data“).
    • The electrical connection may only be made to correctly installed power supplies, fulfilling the respective regulations. The mains voltage on the identification plate must correspond to the mains voltage of the country of use.
    • The digital piano is to be used only in the original delivery condition described below. Conversions of any kind are not permitted and cause the immediate loss of the warranty claim.
    • The digital piano must be placed on securely fastened and weight-suitable, stable, and level floors or platforms.
    Improper Use
    • Use outdoors or in the rain
    • Use in damp rooms
    • Connection to incorrect supply voltage or improperly installed electrical power supplies.
    • Use near electrical or electronic equipment such as stereos, televisions, radios, or mobile phones.
    • These devices may cause interference and affect the sound quality
    • Electrical leads that are too long can also affect sound quality.
    • Transport and installation in places or vehicles with strong vibration, dust, and strong he, at e,.g. direct sunlight.
    • Disregard of the safety instructions
    • Improper handling
    • Use with devices that are not compatible with the technical data listed below.

    Fatal electric shocks

    • Even low electrical currents can lead to serious injuries and death
    • Never open the digital piano’s casing
    • Never use damaged power cables
    • Lay the power cable in such a way that it can not be damaged
    • Never place containers (vases, glasses, etc) filled with water or fluids on the piano
    • Never pour water or liquid onto the digital piano or keyboard
    • Never clean the digital piano with a wet cloth
    • Never plug in or pull out the mains plug with wet hands. Never pull on the cable; it can cause damage.
    • If liquid accidentally gets into the digital piano, immediately unplug the power.
    • Then have your digital piano checked by your GEWA service representative.
    Unusual circumstances
    • Turn off the digital piano or unplug the power cable if:
    • There is a sudden loss of sound while using the digital piano
    • The digital piano generates an unusual smell or smoke
    • Be sure to have the digital piano checked by your GEWA service representative

    Protection against fire

    • Open flame, such as candles or tealights, can tip over and cause a fire
    • Never place objects with open flames on the digital piano!

    Damage to the digital piano

    • Inappropriate electrical voltages can damage the digital piano
    • Only operate the digital piano in the permissible voltage range (as indicated on the respective identification plate).
    • Only use the supplied power cable.
    • Never place the power cable near sources of heat, such as radiators or freestanding heaters.
    • Do not bend or kink the power cable, or damage it in any other way.
    • Lay the power cable so that nobody can step on it, trip on it, or roll over it.
    • Do not place objects on the power cable.
    • Regularly check the power cable and remove any dust or dirt that may be present.

    Damage to the digital piano from thunderstorms

    • Thunderstorms can generate electrical surges that can damage electrical equipment.
    • In the event of a thunderstorm or long periods of non-use (such as travel), unplug the appliance from the mains.
    CE-MARK
    • EN55020:2007+A11:2011
    • EN55024:2010
    • EN55032:2012
    • EN61000-3-2:2014
    • EN61000-3-3:2013
    • EN301489-17:V2.2.1
    • EN301489-17:V3.2.0
    • EN62479:2010
    • EN300328:V2.1.1
    DELIVERY UP355
    • Check that the contents of the package are complete before commencing with assembly.

    Description Quantity

    1. Keyboard and Keyboard lid 1
      • (a) Music Desk 1GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-1
    2. Rear Panel 1GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-2
    3. Pedal Board 1GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-3
    4. Left Side Panel 1GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-4
    5. Right Side Panel 1GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-5
    6. Connection cable power Supply 1GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-6
    7. (a)Phillips screw M6 x 16 5
      • (b )Phillips screw M6 x 35 4GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-7
    8. Phillips wood screw 3.5 x 18 10GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-8
    9. Quick Start Guide 1GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-9
    10. Adjustments Screw 1GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-10

    Assembly Instructions

    This section tells you how to correctly set up your GEWA UP355 88 Keys Black Digital Piano digital piano. For assembly,y you will need:

    • A size Phillipsps screwdriver
    • Another person

    Now, let’s start assembling your GEWA digital piano.

    1. Unfold the pedal cable (not shown) and screw the adjustment screw (10) into the pedal board (3).
    2. By using the Phillips screws (7b), connect the side panels (4 and 5) to the pedal board.
    3. Then attach the rear panel (2) with Phillips wood screws (8).
    4. Now, place the keyboard onto the base from above. Make sure that the angels of the side panels are guided into the millings of the keyboard. Then secure the keyboard with 4 screws (7a).
    5. Now screw the headphone hanger (9) onto the left underside of the keyboard by using a aPhillipss screw (7a).
    6. Then align your digital piano and tighten all of the screws.
    7. Place your digital piano at the desired location GEWA UP355 88 Keys Black Digital Piano and make sure that the adjustment screw (10) touches the floor as shown below.GEWA-UP355-88-Keys-Black-Digital-Piano-fIG-12
    8. Insert the pedal cable true to the side into the pedal cable socket on the underside of the keyboard (1). It should slide easily into the socket. Then plug the power cable (6) into the power socket, which is also located on the underside (not shown).
    9. Set up the music desk as shown below.

    Keyboard Lid

     

    Please make sure to always use both hands to GEWA UP355 88 Keys Black Digital Piano open or close the lid. To open the lid, please follow the drawing below. Oppositely, the lid can then be closed again.

    Getting Started

    Control Buttons 

    1. Display
      Shows information about the chosen settings.
    2. Softbuttons
      This allows you to call up functions assigned in the display.
    3. Cursor keys
      Navigate through the functions here and adjust settings. Menu – Selection
    4. Voice
      Choose from your digital piano‘s different sounds.
    5. Metronome
      Set up your metronome and switch it on or off.
    6. EQ-Settings
      Make adjustmenadjustmentsd the reproduction of the instrument.
    7. Record
      Open the recorder menu.
    8. Player
      Open the player menu.
    9. Settings
      Adjust the settings of your instrument.

    Bluetooth Audio/MiDi

    Via the Bluetooth MIDI function, you can connect your GEWA digital piano with various learning apps or DAWs (Digital Audio Workstations, e.g., Logic Pro or Studio One). The Bluetooth MIDI interface is always active, and you can connect to your digital piano anytime. In the search for your mobile device, the MIDI interface is displayed as: GEWA Mid. Follow the instructions of your MIDI software to connect the piano.

    Bluetooth Audio

    In addition to the Bluetooth MIDI interface, your GEWA digital piano also has a Bluetooth Audio function. To activate Bluetooth Audio, please proceed as follows:

    • Press the Settings button to enter the settings.
    • Press the second function button to put the piano into pairing mode.
    • Now the piano is in pairing mode and waits for external devices to connect. Devices. Bluetooth PIN: 4392
    • After successful pairing, you can now play audio files from the device via the Bluetooth audio interface from the device to your piano.

    TECHNICAL DATA

    NameFeature UP355
    Dimensions WxDxH in cm (with set up music desk)143,4 x 42,0 x 86,5 (102,5) cm
    Weight55 kg
    Power Input75 Watt
    Keyboard88 Keys, Concert Pianist, Graded Hammer
    Touch sensitivity 6 levels (Soft 1, Soft 2, Medium, Hard1, Hard2 and Constant)
    PedalsDamper-, Sostenuto- and Piano Pedal
    Sound sourceGEWA music samples with 4 stereo layers
    Polyphony256
    Amount of internal sounds40
    Amplifier output RMS2 x 20 Watts
    Speakers2-Way speaker system
    Recording formatStandard MIDI-file, WAV
    Connections–  power socket
    –  MIDI In
    –  MIDI Out
    –  LINE In
    –  LINE Out
    –  2x headphone (6.3mm jack)
    –  USB Type A
    –  USB Type B
    –  Sustain Pedal

    Customer Service

    • Manufacturer: GEWA music GmbH, Oelsnitzer Str. 58 08626 Adorf, GERMANY
    • Visit:  www.gewamusic.com
    • Version: 1.0
    • Stand: 05.01.2023
    • Website: http://www.gewakeys.com

    FAQs

    Q: What is the GEWA UP355 Digital Piano?

    Ans: A digital piano with 88 keys, the GEWA UP355 is suitable for both novice and expert players. It combines the sense of a real piano with the flexibility of digital technology with weighted keys, high-resolution sampling, and a sleek, contemporary housing.

    Q: Are the keys weighted like an acoustic piano?

    Ans: Indeed, the UP355 has fully weighted hammer-action keys that replicate an acoustic grand piano’s responsiveness and feel for more expressive playing.

    Q: Can I connect headphones for silent practice?

    Ans: Indeed! One or more headphone jacks on the UP355 enable peaceful practice without disturbing other people.

    Q: Is the piano compatible with external speakers or amplifiers?

    Ans: Of course. For larger performances, you can connect the UP355 to external speakers, mixers, or PA systems using the line-out connectors.

    Q: Does the UP355 have built-in recording functionality?

    Ans: Indeed, it has a record feature that lets you record and replay your performances straight from the instrument.

    Q: Is it possible to split or layer sounds?

    Ans: Indeed. While Layer mode enables you to blend two sounds (such as piano and strings) at the same time, Split mode allows you to assign distinct sounds to the left and right hands.

    Q: How do I adjust touch sensitivity?

    Ans: To fit your playing style, you can choose between light, normal, and heavy touch sensitivity settings. You can access this by using the function menu.

    88 Keys Piano User Manual GEWA Digital Piano Instructions GEWA UP355 Setup Guide OnyxGuides Manual UP355 88 Keys Black Digital Piano Guide User Manual
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    Gabriel Smith

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