FANUC CRT to LCD Replacement Complete Guide

Kongto Technology Engineering Team | Updated July 2026 | 10 min read

FANUC is the world's most widely used CNC control brand, and their CRT displays are found on thousands of machine tools still in operation today. This guide covers everything you need to know about replacing FANUC CRT displays with modern LCD modules — including compatibility, installation, and cost considerations.

Which FANUC CRT Models Can Be Replaced?

The following FANUC CRT display models have direct LCD replacement modules available:

CRT ModelCRT Size & TypeReplacement LCDCompatible Controls
A61L-0001-00729-inch Monochrome CRT8-inch TFT-LCDFANUC 0/0i/16i/18i/21i
A61L-0001-007414-inch Color CRT12.1-inch TFT-LCDFANUC 0/0i/16i/18i/21i
A61L-0001-00769-inch Monochrome CRT8-inch TFT-LCDFANUC 0/0i/16i/18i/21i
A61L-0001-00869-inch Monochrome CRT8-inch TFT-LCDFANUC 0/0i/16i/18i/21i
A61L-0001-00909-inch Monochrome CRT8-inch TFT-LCDFANUC 0/0i
A61L-0001-00929-inch Monochrome CRT8-inch TFT-LCDFANUC 0/0i
A61L-0001-00939-inch Monochrome CRT8-inch TFT-LCDFANUC 0/0i
A61L-0001-009414-inch Color CRT12.1-inch TFT-LCDFANUC 0/0i/16i/18i/21i
A61L-0001-00959-inch Monochrome CRT8-inch TFT-LCDFANUC 0/0i/16i/18i/21i
A61L-0001-009614-inch Color CRT12.1-inch TFT-LCDFANUC 0/0i/16i/18i/21i
A61L-0001-009714-inch Color CRT12.1-inch TFT-LCDFANUC 0/0i/16i/18i/21i
A61L-0001-01169-inch Monochrome CRT8-inch TFT-LCDFANUC 0i-D

Installation Steps

  1. Power off the CNC machine and disconnect main power. Wait 3 minutes for CRT capacitors to discharge.
  2. Remove the old CRT unit — Unscrew the mounting brackets (typically 4 screws). Disconnect the 20-pin Honda MR-20M video cable and the DC power connector.
  3. Install the LCD module — Connect the LCD's 20-pin cable to the existing Honda connector. Connect DC power. Secure the module with the original mounting screws.
  4. Power on — The LCD will display the CNC interface immediately. No parameter changes or machine modifications needed.

Time required: 10-15 minutes. Tools needed: Phillips screwdriver only.

Frequently Asked Questions

Will an LCD work with my FANUC 0i control?
Do I need to change CNC parameters?
How do I know which A61L model I have?
Can I install it myself?

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Article by Kongto Technology — FANUC CRT replacement specialists since 2013. More guides →