1. الصفحة الرئيسية
    2. /
  2. الآلات الموسيقية
    3. /
  3. لوحات المفاتيح الموسيقية وMIDI
    4. /
  4. إكسسوارات وقطع غيار آلات لوحة المفاتيح

التوصيل

قد يختلف وقت التوصيل حسب المتجر والبلد. لمعرفة المزيد حولسياسة الشحن

السعر

ILS
-
تسوق حسب الفئة

دواسات ومفاتيح قدم للكيبورد

Keyboard Pedal

حقائب وعلب وأغطية كيبورد

Keyboard Bag

مزودات طاقة كيبورد

keyboard power adapter

Buy Premium Keyboard Instrument Accessories & Parts Online in Palestine

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عرض الأصل
7% خصم
Piano Keyboard Stickers for 88/61/54/49/37 Key, Bold Large Letter Piano Stickers for Learning, Removable Piano Keyboard Letters, Notes Label for Beginners and Kids, Multicolor
US متجر
COYAHO

Piano Keyboard Stickers for 88/61/54/49/37 Key, Bold Large Letter Piano Stickers for Learning, Removable Piano Keyboard Letters, Notes ...
4.6

5k+ تم الشراء

ILS 52 56

Keycap Puller Switch Puller Stainless Steel Keycap Removal Tool with 2 Pcs Keyboard Cleaning Brush for Mechanical Keyboard
US متجر
New Fashion Kingdom

Keycap Puller Switch Puller Stainless Steel Keycap Removal Tool with 2 Pcs Keyboard Cleaning Brush for Mechanical Keyboard
4.5

2k+ تم الشراء

ILS 51

RockJam RJKBB100 Adjustable Padded Piano Bench, Keyboard Stool
US متجر
RockJam

RockJam RJKBB100 Adjustable Padded Piano Bench, Keyboard Stool
4.6

2k+ تم الشراء

ILS 221

Keyboard Stand & Bench Set, Upgrade Heavy Duty Double-X Keyboard Stand, Adjustable & Portable Digital Piano Stand with Locking Straps
US متجر
tipatyard

Keyboard Stand & Bench Set, Upgrade Heavy Duty Double-X Keyboard Stand, Adjustable & Portable Digital Piano Stand with Locking Straps
4.5

1k+ تم الشراء

ILS 306

Soraco Sustain Pedal Universal for Yamaha Casio Roland Korg Behringer Moog Piano Midi Electronic keyboards Style with Polarity Switch, 1/4 Input Plug
US متجر
Soraco

Soraco Sustain Pedal Universal for Yamaha Casio Roland Korg Behringer Moog Piano Midi Electronic keyboards Style with Polarity Switch, 1/4 ...
4.5

1k+ تم الشراء

ILS 101

12V 2A AC Power Supply Adapter Charger Cord for Yamaha PSR, YPG, YPT, DGX, DD, EZ and P Digital Piano and Portable Keyboard Series, Replacement PA-130 PA-130B Adapter
US متجر
FlickerStar

12V 2A AC Power Supply Adapter Charger Cord for Yamaha PSR, YPG, YPT, DGX, DD, EZ and P Digital Piano and Portable Keyboard Series, ...
4.6

1k+ تم الشراء

ILS 71

9% خصم
GLEAM Keyboard Stand - Digital Piano Stand, Single X Style, Black Capacity 100 lb
US متجر
GLEAM

GLEAM Keyboard Stand - Digital Piano Stand, Single X Style, Black Capacity 100 lb
4

1k+ تم الشراء

ILS 133 146

5 PCS Mini Keyboard Brushes, Anti-Static Brush for Small Spaces
US متجر
Juxiamal

5 PCS Mini Keyboard Brushes, Anti-Static Brush for Small Spaces
4.6

1k+ تم الشراء

ILS 51

JOYO Wireless Page Turner Pedal Bluetooth Foot Switch for iPad/Tablet/Phone Works with forScore/OnSong, 5 Modes & 60H Battery with LED Indicator, Silent Non-Slip Design for Sheet Music SP-01
US متجر
JOYO

JOYO Wireless Page Turner Pedal Bluetooth Foot Switch for iPad/Tablet/Phone Works with forScore/OnSong, 5 Modes & 60H Battery with LED ...
4.3

900+ تم الشراء

ILS 191

Sustain Pedal, Sustain Pedal for Keyboard Universal, Premium Piano Pedal for Keyboard with Polarity Switch for MIDI Keyboards, Digital Pianos, Yamaha, Casio and More, 1/4 Input Plug by RNSXYAT
US متجر
RNSXYAT

Sustain Pedal, Sustain Pedal for Keyboard Universal, Premium Piano Pedal for Keyboard with Polarity Switch for MIDI Keyboards, Digital ...
4.5

800+ تم الشراء

ILS 71

7% خصم
Donner DP-1 Guitar Power Supply 10 Isolated DC Output for 9V/12V/18V Effect Pedal
US متجر
Donner

Donner DP-1 Guitar Power Supply 10 Isolated DC Output for 9V/12V/18V Effect Pedal
4.5

700+ تم الشراء

ILS 206 221

Sustain Pedal for Keyboard Universal, Premium Sustain Pedal, Piano Pedal for Keyboard with Polarity Switch for MIDI Keyboards, Digital Pianos, Yamaha, Casio and More, 1/4 Input Plug by karmiero
US متجر
karmiero

Sustain Pedal for Keyboard Universal, Premium Sustain Pedal, Piano Pedal for Keyboard with Polarity Switch for MIDI Keyboards, Digital ...
4.7

700+ تم الشراء

ILS 69

Piano Keyboard Stickers, Removable Piano Keyboard Note Labels for 88-Key
US متجر
LEIEILUK

Piano Keyboard Stickers, Removable Piano Keyboard Note Labels for 88-Key
4.6

600+ تم الشراء

ILS 46

Double-X Keyboard Stand, Portable Digital Piano Stand,Adjustable keyboard Music Stand for 54-88 key Electric Pianos
US متجر
tipatyard

Double-X Keyboard Stand, Portable Digital Piano Stand,Adjustable keyboard Music Stand for 54-88 key Electric Pianos
4.6

600+ تم الشراء

ILS 206

Sustain Pedal for Yamaha Keyboard, Piano Keyboard Pedal with Polarity Switch for Casio, MIDI, Roland Electronic Keyboards and Digital Pianos, 1/4 Inch Jack
US متجر
ENJOYPRO

Sustain Pedal for Yamaha Keyboard, Piano Keyboard Pedal with Polarity Switch for Casio, MIDI, Roland Electronic Keyboards and Digital ...
4.5

600+ تم الشراء

ILS 71

FouceClaus 12V Power Supply Charger Adapter for Yamaha PSR, YPG, YPT, DGX, DD, EZ Series Keyboard, Replacement PA130 PA-130B PA150, 8.4 Ft Long Power Cord
US متجر
FOUCECLAUS

FouceClaus 12V Power Supply Charger Adapter for Yamaha PSR, YPG, YPT, DGX, DD, EZ Series Keyboard, Replacement PA130 PA-130B PA150, 8.4 Ft ...
4.7

600+ تم الشراء

ILS 71

9% خصم
Donner Wireless Bluetooth Page Turner Pedal for iPad Tablets Phone Foot Pedal Rechargeable,Black
US متجر
Donner

Donner Wireless Bluetooth Page Turner Pedal for iPad Tablets Phone Foot Pedal Rechargeable,Black
4.5

600+ تم الشراء

ILS 336 371

Donner DSP-001 Sustain Pedal for Keyboard, Universal Piano Pedal with Polarity Switch for Digital Piano/Piano Keyboard/MIDI KeyboardSynthesizer, 1/4 6.35mm Input Plug, 63 1.6m Cable
US متجر
Donner

Donner DSP-001 Sustain Pedal for Keyboard, Universal Piano Pedal with Polarity Switch for Digital Piano/Piano Keyboard/MIDI ...
4.5

600+ تم الشراء

ILS 101

Keyboard Stand Piano Bench Set, Double X Adjustable Keyboard Stand Piano Stand with Lockable Straps, Piano Keyboard Stand x 1, Piano Bench x 1, 7 Adjustable Heights, Black
US متجر
Bazayona

Keyboard Stand Piano Bench Set, Double X Adjustable Keyboard Stand Piano Stand with Lockable Straps, Piano Keyboard Stand x 1, Piano Bench ...
4.4

500+ تم الشراء

ILS 271

QMG Rainbow Color Piano and Keyboard Sticker and Kids Piano Learning Book Easy to Follow Instructions for Kids, Beginner Piano Book for Children, Easy Piano Sheet Music for Kids
US متجر
QMG

QMG Rainbow Color Piano and Keyboard Sticker and Kids Piano Learning Book Easy to Follow Instructions for Kids, Beginner Piano Book for ...
4.7

500+ تم الشراء

ILS 96

DC 9V Guitar Pedal Power Supply 1A 10mA -1000mA Center Negative
US متجر
pigtone

DC 9V Guitar Pedal Power Supply 1A 10mA -1000mA Center Negative
4.5

500+ تم الشراء

ILS 66

Universal 9.84 Ft Adapter for 12V Yamaha Keyboard Power Cord,AC Adapter for Yamaha PSR, YPG, YPT, DGX,EZ,P Digital Piano,Portable Keyboard Series,Replacement for Yamaha PA130 PA150 Adapter
US متجر
Strivy

Universal 9.84 Ft Adapter for 12V Yamaha Keyboard Power Cord,AC Adapter for Yamaha PSR, YPG, YPT, DGX,EZ,P Digital Piano,Portable Keyboard ...
4.7

500+ تم الشراء

ILS 70

Dexpt 9V DC Power Supply for Guitar Pedal, Boss PSA-120S, ME-90, ME-80, RC-5, RC-30, RC-505, GT-1, GT-10, GT-100, GT-1B, DS-1, Center Negative 5.5 x 2.1mm UL Listed Effect Pedal AC Power Adapter Cord
US متجر
Dexpt

Dexpt 9V DC Power Supply for Guitar Pedal, Boss PSA-120S, ME-90, ME-80, RC-5, RC-30, RC-505, GT-1, GT-10, GT-100, GT-1B, DS-1, Center ...
4.8

500+ تم الشراء

ILS 86

16% خصم
Yamaha FC4A Assignable Piano Sustain Foot Pedal
US متجر
Yamaha

Yamaha FC4A Assignable Piano Sustain Foot Pedal
4.7

400+ تم الشراء

ILS 266 316

Keyboard Stand & Bench Set Double-X Piano Stand with Adjustable Height 7 Levels, Foldable Design, Heavy-Duty Construction, Suitable for Most Keyboards, Digital Pianos
US متجر
Natapai

Keyboard Stand & Bench Set Double-X Piano Stand with Adjustable Height 7 Levels, Foldable Design, Heavy-Duty Construction, Suitable for ...
4.5

400+ تم الشراء

ILS 271

Height Adjustable Keyboard Stand With Quick Release Mechanism - Double X Foldable Heavy Duty Instrument Stand With Locking Straps for 54-61-88 Key Electronic Pianos
US متجر
FKEBGDSU

Height Adjustable Keyboard Stand With Quick Release Mechanism - Double X Foldable Heavy Duty Instrument Stand With Locking Straps for ...
4.3

400+ تم الشراء

ILS 171

KOTEMON Acrylic Tilted Computer Keyboard Stand for Compact Keyboard, 78 Keys Keyboard, with White Silicone Strip, 11.8 Inch Width
US متجر
KOTEMON

KOTEMON Acrylic Tilted Computer Keyboard Stand for Compact Keyboard, 78 Keys Keyboard, with White Silicone Strip, 11.8 Inch Width
4.4

400+ تم الشراء

ILS 71

AirTurn DUO500 Silent Bluetooth Pedal Page Turner
US متجر
AirTurn

AirTurn DUO500 Silent Bluetooth Pedal Page Turner
4.5

400+ تم الشراء

ILS 566

MusicNomad Piano ONE Cleaner, Polish & Wax For Gloss Pianos, 4 oz MN130
US متجر
MusicNomad

MusicNomad Piano ONE Cleaner, Polish & Wax For Gloss Pianos, 4 oz MN130
4.5

400+ تم الشراء

ILS 71

Donner DPA-1 9V DC 1A Power Supply Adapter for Keyboards & Guitar Pedals
US متجر
Donner

Donner DPA-1 9V DC 1A Power Supply Adapter for Keyboards & Guitar Pedals
4.6

400+ تم الشراء

ILS 119

12V 2A AC Adapter Supply Charger for Casio Privia Power Cord Replacement
US متجر
Lantisri

12V 2A AC Adapter Supply Charger for Casio Privia Power Cord Replacement
4.4

300+ تم الشراء

ILS 71

GLEAM Keyboard Bench Padded Cushion X-Style Height Adjustable 16.5-18.5, Piano Stool, Keyboard Chair, Black
US متجر
GLEAM

GLEAM Keyboard Bench Padded Cushion X-Style Height Adjustable 16.5-18.5, Piano Stool, Keyboard Chair, Black
3.8

300+ تم الشراء

ILS 146

Keycap Puller Switch Puller Keycap Remover for Mechanical Keyboard
US متجر
SRHVJ

Keycap Puller Switch Puller Keycap Remover for Mechanical Keyboard
4.2

300+ تم الشراء

ILS 41

2% خصم
Roland DP-10 Real-Feel Pedal with Non-Slip Rubber Plate
US متجر
Roland

Roland DP-10 Real-Feel Pedal with Non-Slip Rubber Plate
4.7

300+ تم الشراء

ILS 328 336

10 ft Power Cord for Yamaha Keyboard PSR, YPG, YPT, DGX, DD Digital Piano
US متجر
YEAOI

10 ft Power Cord for Yamaha Keyboard PSR, YPG, YPT, DGX, DD Digital Piano
4.5

300+ تم الشراء

ILS 71

QMG Color Piano and Keyboard Stickers and Complete Color Note Piano Music Lesson and Guide Book for Kids and Beginners; Designed and Printed in USA
US متجر
QMG

QMG Color Piano and Keyboard Stickers and Complete Color Note Piano Music Lesson and Guide Book for Kids and Beginners; Designed and ...
4.6

300+ تم الشراء

ILS 96

Stage Rocker Single-X Style Classic Folding Keyboard & Digital Piano Stand, Adjustable Width & Height, Durable & Sturdy, Easy to Assemble for Travel/Storage, Sleek Black, Powered by HamiltonSR524000
US متجر
Stage Rocker

Stage Rocker Single-X Style Classic Folding Keyboard & Digital Piano Stand, Adjustable Width & Height, Durable & Sturdy, Easy to Assemble ...
4.4

300+ تم الشراء

ILS 171

12V Yamaha Keyboard Power Cord for Yamaha PSR/YPG/YPT/DGX/DD Digital Piano
US متجر
Goffeu

12V Yamaha Keyboard Power Cord for Yamaha PSR/YPG/YPT/DGX/DD Digital Piano
4.6

300+ تم الشراء

ILS 71

Yamaha OEM PKBB1 Adjustable Padded Keyboard X-Style Bench, Black, 19.5 inches
US متجر
Yamaha

Yamaha OEM PKBB1 Adjustable Padded Keyboard X-Style Bench, Black, 19.5 inches
4.7

300+ تم الشراء

ILS 371

Boss PSA-120S Power Adapter
US متجر
BOSS

Boss PSA-120S Power Adapter
4.7

300+ تم الشراء

ILS 221

24% خصم
Donner Piano Bench with Storage, Solid Wood Keyboard Bench Piano Bookcase Stool Chair Seat with High-Density Sponges Pad, Black
US متجر
Donner

Donner Piano Bench with Storage, Solid Wood Keyboard Bench Piano Bookcase Stool Chair Seat with High-Density Sponges Pad, Black
4.6

300+ تم الشراء

ILS 321 421

9V Power Adapter for Casio Keyboard AD-5 AD-5MU AD-5MR WK-110 WK-200 LK-43 LK-100 LK-220 CTK-496 CTK-573 CTK-700 CTK-710 CTK-720 CTK-2100 MA150 and More 8.2ft Power Supply Cord
US متجر
WindSwallow

9V Power Adapter for Casio Keyboard AD-5 AD-5MU AD-5MR WK-110 WK-200 LK-43 LK-100 LK-220 CTK-496 CTK-573 CTK-700 CTK-710 CTK-720 CTK-2100 ...
4.5

200+ تم الشراء

ILS 71

AZOR Guitar Effect Pedal Power Supply Adapter,AC DC 9V Power Cord Fit for 9V1A Guitar Effects Pedal,Keyboard Center Negative
US متجر
AZOR

AZOR Guitar Effect Pedal Power Supply Adapter,AC DC 9V Power Cord Fit for 9V1A Guitar Effects Pedal,Keyboard Center Negative
4.5

200+ تم الشراء

ILS 56

Stand Compatible with Apple Magic Wireless Keyboard and Apple Magic Trackpad Apple Keyboard & Trackpad are not Included
US متجر
Bestand

Stand Compatible with Apple Magic Wireless Keyboard and Apple Magic Trackpad Apple Keyboard & Trackpad are not Included
4.5

200+ تم الشراء

ILS 201

DC 12V Power Cord for Yamaha Keyboard PSR YTP YTG EZ P Series PSR-E273 PSR-500 PSR-EW300 PSR-EW310 PSR-E373 PSR-E413 PSR-E473 P60 P125 Replacement PA130 PA150 Power Supply Adapter
US متجر
UORLEN

DC 12V Power Cord for Yamaha Keyboard PSR YTP YTG EZ P Series PSR-E273 PSR-500 PSR-EW300 PSR-EW310 PSR-E373 PSR-E413 PSR-E473 P60 P125 ...
4.6

200+ تم الشراء

ILS 71

2-in-1 Mechanical Keyboard Keycap Puller and Switch Puller Tool, Stainless Steel Key Remover Extractor for Cherry MX, Alps, Topre Switches - Professional Mechanical Keyboards Tool Kit
US متجر
Atdcoek

2-in-1 Mechanical Keyboard Keycap Puller and Switch Puller Tool, Stainless Steel Key Remover Extractor for Cherry MX, Alps, Topre Switches ...
4.5

200+ تم الشراء

ILS 41

Z Style Keyboard Stand with Bench Set, Heavy Duty Piano Sty Adjustable Height & Width for 54-88 Key Electric Digital Keyboards, Dual Secure with Keyboard Buckle & Locking Straps, Headphone Hook, Sturdy Stool for Home Stage Studio
US متجر
Hencawima

Z Style Keyboard Stand with Bench Set, Heavy Duty Piano Sty Adjustable Height & Width for 54-88 Key Electric Digital Keyboards, Dual ...
4.3

200+ تم الشراء

ILS 366

Shop Keyboard Instrument Accessories & Parts from Ubuy Palestine

Keyboard instrument accessories and parts encompass everything beyond the core piano or keyboard itself. These components transform a simple musical setup into a fully functional, stage-ready configuration. From protective cases that shield your gear during transport to replacement components that restore functionality after wear, this category serves musicians who demand reliability and flexibility from their instruments. Whether you're a gigging keyboardist, a home studio enthusiast, or a music educator, having the right accessories ensures consistent performance and extends the lifespan of your investment.

The appeal of stocking up on quality keyboard instrument parts and accessories lies in both practicality and creative potential. Musicians invest in these products to protect their instruments during travel, maintain optimal playing conditions, and expand their sonic capabilities through pedals, additional power supplies, and specialised bags. The market offers options ranging from beginners seeking basic setup essentials to professional performers requiring rugged, tour-grade equipment that can withstand demanding schedules.

Ubuy Palestine provides a convenient platform for sourcing keyboard instrument accessories, with diverse listings from established brands and suppliers. The advantage of shopping in this category at Ubuy Palestine lies in the combination of competitive pricing, a wide range of products across price points, and reliable delivery options that serve musicians throughout the Nordic region and beyond. Beyond the core accessories, buyers frequently explore complementary categories such as keyboard power supplies to ensure reliable operation and keyboard pedals and footswitches to expand their musical expression.

Choosing the Right Keyboard Accessories

Selecting appropriate keyboard instrument accessories depends primarily on your playing context and specific requirements. Home players prioritising protection and basic functionality may focus on keyboard bags, cases, and covers that safeguard their instrument from dust and accidental damage. Those performing regularly need more robust solutions, heavy-duty cases with enhanced padding, wheels for easy transport, and reliable power supplies that perform consistently across different venues and electrical configurations.

Consider the type of keyboard instrument you own or plan to purchase. Electronic keyboards and digital pianos often have specific power requirements and mounting specifications that influence which accessories are compatible. Folk keyboards and arrangements with weighted hammer-action keys may require different stands or bench configurations compared to lighter synthesizer-style instruments. Replacement parts serve different functions: some address cosmetic concerns, while others restore critical functionality. Assess whether you're optimising for convenience, protection, or restoration.

Beginners should start with essential protective gear and a stable keyboard stand before progressing to advanced accessories. A quality case or cover combined with a proper stand creates a solid foundation for practice and performance. More experienced players often expand their setup with expression pedals, alternate power supplies, and specialised replacement components that enhance their creative workflow.

Explore Different Types of Keyboard Instrument Accessories & Parts

The comprehensive selection addresses a range of needs across various playing environments and proficiency levels. Understanding the primary categories helps buyers identify which products suit their specific situation.

Bags, Cases, and Covers for Protection

Protective cases serve as the first line of defence for keyboard instruments during transport and storage. Keyboard bags offer padded protection with convenient carrying handles, making them ideal for musicians who regularly move between practice locations, studios, or performance venues. Hard cases provide superior protection for frequent travellers and touring musicians, featuring reinforced shells that withstand impacts and environmental factors. Soft covers work well for home storage, keeping dust and minor spills at bay while maintaining a compact profile.

Power Supplies for Reliable Operation

Consistent power delivery ranks among the most critical considerations for electronic keyboard instruments. Dedicated keyboard power supplies ensure stable performance across varying electrical conditions, particularly valuable for performers travelling between venues with different power standards. Quality power supplies include surge protection and voltage regulation that safeguard sensitive electronic components from damage caused by power fluctuations.

Pedals and Footswitches for Expression

Keyboard pedals and footswitches expand musical possibilities beyond what fingers alone can achieve. Sustain pedals represent the most common accessory, enabling the smooth, expressive playing associated with acoustic piano technique. More advanced players incorporate expression pedals, volume pedals, and multi-function footswitches that control modulation, sustain hold, patch changes, and other parameters in real-time during performance.

Replacement Parts for Restoration

Keyboard instrument replacement parts address wear, damage, and component failures that naturally occur over time. From worn-out feet and damaged input jacks to complete keyboard beds and action components, these parts restore functionality without requiring full instrument replacement. Identifying the specific part number and original specifications ensures compatibility with your instrument model.

Trusted Brands for Keyboard Instrument Accessories & Parts

Several manufacturers have established strong reputations for quality and reliability in the keyboard accessories market. The following brands are among those only:

Yamaha

Yamaha maintains its position as a leading name in keyboard instruments, extending that expertise to official accessories designed specifically for their keyboard and piano product lines. Their replacements, bags, and pedals reflect the precise specifications their instruments require, making them the natural choice for Yamaha owners prioritising seamless integration.

Roland

Roland delivers professional-grade accessories tailored for stage and studio environments. Their pedal options and replacement components receive particular recognition for durability and consistent performance under demanding playing conditions.

FLAMMA

FLAMMA focuses on providing functional, accessible accessories that serve beginning to intermediate players well. Their product range covers essential cases, stands, and pedals at competitive price points without compromising basic quality standards.

Rockville

Rockville has built a reputation for value-oriented accessories that punch above their weight in terms of features and durability. Their product range serves players across budget levels seeking reliable performance without premium pricing.

Frequently Asked Questions About Keyboard Instrument Accessories & Parts

  • What are the main parts of a keyboard instrument?

    Keyboard instruments comprise several key components: the key bed (the mechanical action beneath the keys), the keys themselves (weighted or synth style), the housing or casing, the electronics and control interface, and connection ports for pedals, power, and audio output. Replacement parts target each of these functional areas when maintenance or repair becomes necessary.

  • What accessories do I need for a keyboard instrument?

    Essential accessories include a protective case or cover, a stable stand, and a sustain pedal for most players. Those performing live benefit from reliable power supplies and rugged transport cases. Home studio owners may prioritise headphones, additional pedal configurations, and furniture-style stands that complement their living spaces.

  • What are keyboard instrument replacement parts?

    Keyboard instrument replacement parts are individual components designed to replace worn, damaged, or non-functional parts of your instrument. These range from small components such as knobs and connectors to larger assemblies, such as complete key beds or electronic modules. Matching specifications to your instrument model ensures proper fit and function.

  • What are keyboard piano parts and their functions?

    Keyboard piano parts work together to translate player input into musical output. The key bed houses the mechanical or semi-weighted action that creates resistance and rebound. Keys translate finger pressure into electronic signals or hammer movement. Pedal connectors enable sustain and expression control. Power inputs receive energy from dedicated supplies. Understanding these functions helps when identifying specific replacement needs.