Cables & Controls

Correct Cable Layout

HDMI Setup

• Main PC GPU → HDMI RX0

• Secondary PC GPU → HDMI RX1

• Monitor → HDMI TX

DisplayPort Setup

• Main PC GPU → DP RX0

• Secondary PC GPU → DP RX1

• Monitor → DP TX

RX0 and RX1 can be swapped by holding K4 for 3–5 seconds.

---

Power & Ports

• DC12V → Main power

• 12V 3A (optional) → Backup power

• USB-C → Debug / firmware updates (if needed)

---

Button Functions (Front Panel)

K1 – Info

• Short press: Show resolution, refresh rate, alpha value

• Long press (5s): Switch EDID Mode (A ↔ B)

K2 – Increase Overlay Strength

• Raises chroma-key (alpha) value

K3 – Decrease / Reset

• Short press: Lower alpha

• Long press (5s): Factory reset (fixes most issues)

K4 – Layer Control

• Short press: Enable / disable secondary overlay

• Long press (3–5s): Swap upper & lower layers

---

✅ You're Done

Your 4K DC500 Fuser is now set up and ready to use.

If you need further clarification or encounter any issues, please refer to Troubleshooting & Indicators.