Key Scan Board

Assembly

Green Printed Circuit Board and Components.JPG · Commons ↗ Report photo

Key-contact matrix board that scans rubber-dome sensors and reports velocity.

Direct parts	4
Total parts	92
Used in	1 assembly
Class	Assembly

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Key-contact matrix board that scans rubber-dome sensors and reports velocity. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Key Scan Board parts and their functions

4 top-level parts · 92 parts in total · full bill of materials below

Key Scan Board parts diagram: 1 bare PCB, 2 key contact pad, 3 SMD passive (R/C/L), 4 connector. 92 parts in 4 top-level items. — Key Scan Board parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Bare PCB	1×	Scan PCB
2	Key Contact Pad	88×	Carbon contact pads
3	SMD Passive (R/C/L)	1×	Pull-ups + filtering
4	Connector	2×	Ribbon to sound board

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Build & assembly graph

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Bill of materials for Key Scan Board

4 top-level lines · 4 rows shown · 92 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Bare PCB	pcb-bare	1×	1	·	part
2	Key Contact Pad	digital-piano-key-contact	88×	88	·	part
3	SMD Passive (R/C/L)	smd-passives	1×	1	·	part
4	Connector	connector	2×	2	·	part

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Where the key scan board is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Musical Instruments 1 Digital Piano

Used in 1 assembly

Digital Piano

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳JLCPCB jlcpcb.com ↗	Shenzhen, CN	PCB fabrication	100 pcs	2–4 wks
🇨🇳PCBWay pcbway.com ↗	Shenzhen, CN	PCB fab & assembly	100 pcs	2–4 wks
🇨🇳Shennan Circuits scc.com.cn ↗	Shenzhen, CN	PCB manufacturer	100 pcs	2–4 wks
🇮🇳Shogini Technoarts shogini.com ↗	Mumbai, IN	PCB manufacturer	100 pcs	2–4 wks
🇸🇬Venture Corp venture.com.sg ↗	Singapore	Electronics contract mfg	100 pcs	2–4 wks