What This Part Does

The 445-0751703 is the S1 Dispenser Control Board — Top Level Assembly for NCR SelfServ ATMs. This board is the brain of the S1 cash dispenser, controlling every mechanical action: pick motor timing, note thickness detection, transport routing, and cassette position sensing. It communicates with the PC Core over USB/serial and executes low-latency dispense commands in real time.

When this board fails, the dispenser stops responding entirely. The ATM might still boot and run the screen and card reader, but any cash transaction returns a dispenser fault. This is the #3 most-searched NCR PN on Alibaba, with multiple Chinese suppliers competing on price — which tells you how often these get replaced.

This is the Top Level Assembly revision. Earlier board revisions (445-0749062, 445-0712895, 445-0730147) may also be available — confirm your exact S1 variant before ordering.

Technical Specs

Compatible Models

• SelfServ 22 / 23 — S1 dispenser, standard configuration

• SelfServ 25 / 27 — S1 multi-cassette dispenser

• 6622 / 6625 / 6627 — Earlier S1 series (verify revision compatibility)

Signs You Need a Replacement

• Dispenser not responding — ATM boots but cash module shows offline

• Dispenser fault LED lit on the board itself (not the PC Core diagnostic)

• Intermittent dispense failures — works cold, fails after 30+ minutes (thermal fault)

• Motor over-current errors — board failing to regulate power to dispenser motors

• USB enumeration failure — PC Core can't see the dispenser controller

• Board past 5+ years of continuous operation in high-temperature vault

Why Buy From MicroLinkpro

• Revision-matched. We verify your machine's exact S1 board revision before shipping. Wrong revision = hours of wasted field tech debugging.

• Firmware pre-loaded. Board arrives ready to install. No firmware flashing required on site.

• B2B pricing. ATM service companies: volume discounts at 3+ units.

• Tested under load. Every board runs a full dispense cycle test (pick, transport, present) before boxing.

Ordering Info

Minimum order: 1 unit
Bulk pricing: 3+ / 5+ tier discounts
Shipping: DHL / FedEx / UPS worldwide

Frequently Bought Together