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| Place of Origin | JAPAN |
| Brand Name | FANUC |
| Certification | CE ROHS |
| Model Number | A20B-8100-0920 |
The A20B-8100-0920 is a display control PCB with integrated I/O in the A20B-8100 family.
It is described as DISPLAY CONTROL PCB W/I.O., which places it in the operator-interface and display-control section of compatible FANUC CNC hardware rather than in the main-board, communication-board, or servo amplifier section.
The role described for this board includes display signal processing and integrated input/output support within the display-side hardware path.
From a practical service standpoint, this is the kind of board chosen by the exact display-side function already installed in the machine.
Because it combines screen-control duties with integrated I/O handling, it should be treated as more than a simple monitor accessory board.
Matching the same model helps preserve the original operator-interface behavior and board-level interaction with the control.
| Parameter | Value |
|---|---|
| Part Number | A20B-8100-0920 |
| Manufacturer | FANUC |
| Product Type | Display Control PCB |
| Product Series | A20B-8100 |
| Board Role | Display Control PCB with integrated I/O |
| Functional Context | Display signal processing and I/O handling |
| Application Context | FANUC CNC display systems |
| Common Supply Channels | New, refurbished, and tested board listings |
This board is suitable for installed FANUC CNC systems where the display assembly already uses the A20B-8100-0920 board position.
It is especially relevant in display-board replacement, operator-interface repair, and refurbishment where the original display-control path and integrated I/O structure need to remain unchanged.
Before ordering, confirm the installed board code directly on the hardware and verify that the original board serves the same display control with integrated I/O function.
On display-control boards, exact model continuity matters because the board is tied both to the display path and to the installed signal-handling role around the operator interface.
Q1: What kind of board is A20B-8100-0920?
It is a display control PCB with integrated I/O. Its role is centered on display-side signal handling and operator-interface support inside FANUC CNC hardware, which makes it distinct from the main control board, network board, or servo power board.
Q2: Why is the “with I/O” description important?
Because it shows that the board is doing more than simple display driving.
A board identified as display control PCB with I/O combines operator-interface handling with integrated signal-side responsibilities, so replacement should preserve that same mixed role.
Q3: Is this a complete display unit?
No. It is the control PCB within the display-side system, not the entire display assembly. That distinction matters because replacement planning should focus on the exact board position inside the existing display hardware.
Q4: Why does exact model matching matter on this board?
Because display-control boards are selected by installed function, not only by family name.
When the board also carries integrated I/O handling, the functional match becomes even more important. Using the same model helps keep the operator interface and related board interaction unchanged.
Q5: What should be checked before buying?
Check the installed board label, confirm the display section uses A20B-8100-0920, and verify that the board being replaced is the same display control PCB with I/O type.
On display-side boards, confirming the exact installed role is the safest way to avoid mismatch.
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