Universal CNC CRT to LCD Installation Guide

June 2026 | Kongto Technology | Compatibility Matrix

Before You Start: Identify Your System

Before ordering a replacement, you need three pieces of information:

1. CNC brand and control model (e.g., FANUC 0-TC, Mitsubishi M64)
2. CRT part number (found on label on back of display)
3. Connector type (count the pins or check brand-specific connector)

Connector and Power Reference

Universal Installation Steps

1. Safety first: Power off CNC machine. Lock out power if available. CRT displays contain high-voltage capacitors — if unsure, have a technician handle this.
2. Remove old CRT: Remove 4 corner screws on the bezel. Pull CRT forward gently. Support the unit — 9-inch CRTs weigh about 3 kg, 14-inch units can be 5+ kg.
3. Disconnect cables: Unplug the video signal connector. Note which connector goes where. Take a photo for reference.
4. Connect new LCD: Plug the original cable into the new LCD. The connector should fit directly — no adapters needed if you ordered the correct model.
5. Mount: Use the original screw holes. The replacement LCD is designed for the same mounting pattern.
6. Power on and test: Turn on the CNC. Verify the display shows correctly. No parameter changes are required.

Common Issues and Solutions

• No display after installation: Check that the connector is fully seated. Verify power is reaching the display.
• Wrong connector: If the connector does not fit, you have the wrong brand-specific model. Do not force it.
• Display works but is dim: Adjust brightness/contrast using the LCD's OSD menu.