How to Replace a Fanuc CRT with LCD: Complete Step-by-Step Guide

Applies to: Fanuc A61L-0001 series (0072-0097) | D9MM-11A | MDT947B | Install time: 10-15 minutes | Tools: Phillips screwdriver only

Can I Directly Swap the Fanuc CRT with an LCD?

Yes — 100% plug-and-play. Our LCD replacement module uses the exact same 20-pin Honda connector (MR-20L) and mounting hole pattern as the original CRT. Unplug the old CRT, plug in the new LCD. No wiring changes, no signal converters, no CNC parameter modifications. The LCD auto-syncs to Fanuc video signal timing.

Quick Compatibility Reference

Original CRT ModelScreen SizeFanuc System
A61L-0001-00939" monochrome0, 0i, OM-D, 16i, 18i
A61L-0001-007414" color0, 0i, 16i, 18i, 21i
A61L-0001-009614" color0i, Power Mate
D9MM-11A9" color0, 0i (Toshiba OEM)

Step 1: Power Down and Safety

Turn off main power. Wait 3 minutes for capacitor discharge — CRT supplies hold dangerous voltages. Wear a grounding strap.

Step 2: Remove the Old CRT

  1. Remove 4 mounting screws securing the CRT housing
  2. Pull CRT forward to access rear connectors
  3. Disconnect 20-pin Honda signal cable (press locking tab, pull straight)
  4. Disconnect DC 24V power wires — note wire colors

Step 3: Install the LCD Module

  1. Place LCD into same opening — mounting holes align 100%
  2. Secure with same 4 screws from Step 2
  3. Plug 20-pin Honda cable into LCD — keyed connector prevents incorrect insertion
  4. Connect DC 24V power

Step 4: Power On

Restore power. LCD displays within 5-10 seconds. Use OSD buttons to adjust brightness. No CNC parameter changes needed.

What You Gain: CRT vs LCD

SpecOriginal CRTLCD Upgrade
Resolution640x400800x600
Brightness~200 cd/m2350-450 cd/m2
Lifespan15,000-30,000 hrs50,000+ hrs
Power30-40W8-12W
InstallationN/A (repair only)10-15 min, DIY

Related Products

A61L-0001-0093 LCD | A61L-0001-0094 LCD | A61L-0001-0074 LCD | A61L-0001-0096 LCD | D9MM-11A LCD
All Fanuc LCD Solutions | Full Compatibility Matrix

Need help identifying your model? Email a photo of your CRT label to [email protected] — we respond within 4 hours.