ChiTu L 5.5 V3 Controller Board for Mono Screen mSLA/LCD 3D Printers

Repair or Build a Compatible mSLA/LCD 3D Printer

The ChiTu L V3 is a controller motherboard for selected LCD resin 3D printers. It manages the resin-curing LCD, Z-axis movement and printing workflow, with support for specific LCD models and matching firmware.

Officially listed for Creality LD-002R with a specific original LCD.
Supports selected monochrome and RGB LCD panels.
Available as a board-only or touchscreen bundle.

ChiTu L V3 32-bit LCD resin 3D printer motherboard — ChiTu L V3 motherboard

Before ordering: Check the original motherboard version, exact LCD model, connector and ribbon cable, available mounting space, wiring and firmware. Matching screen size alone does not guarantee compatibility.

Printer Compatibility

Creality LD-002R — Officially Listed

Original LCD: 5.5-inch 2K LS055R1SX04 (RGB)

Official LD-002R firmware folder

The official V3 guide lists this specific printer and LCD combination. Check the physical connectors, wiring and hardware revision before replacing a board.

Other printers may be suitable for custom projects, but are not confirmed as direct replacements by this list. See the official V3 compatibility guide.

Compatible LCD Models & FPGA Firmware

The following panels are included in the official ChiTu L V3 LCD compatibility list. Select firmware for the exact LCD model and check the official wiring diagram before installation.

LCD Model	Display Type	FPGA File
LS055R1SX04	5.5-inch 2K RGB	View firmware
DXQ608-X04	6.08-inch 2K Mono	View firmware
PJ608-X04	6.08-inch 2K Mono	View firmware
DUOBOND RV059FBB-N80	5.96-inch 2K Mono	View firmware
FHD 5.5-inch Mono LCD	5.5-inch FHD Mono	View firmware

Important LCD warning: Do not connect Sharp03 or DXQ608-03 LCDs to the V3 motherboard. The original installation notice warns that the wrong connector can damage the board's U3 chip. Verify the exact LCD connector and cable orientation before switching on power.

How to Choose the Right Option

1. Touch Screen Size

Choose Only board if you do not need a new control touchscreen, or select a listed 2.8 / 3.5 / 4.3 / 5.0-inch TFT touchscreen bundle.

This is the user-interface touchscreen, not the resin-curing LCD panel.

2. Firmware Option

Match the firmware option to the actual resin-curing LCD model. Store options include 5.96 Mono, 6.08 Mono, FHD 5.5 Mono and Sharp04.

If the label is ambiguous or differs from the official LCD list, confirm with support rather than choosing by size alone.

Selecting an option does not automatically include a resin-curing LCD panel. Check the actual package contents and selected variant before checkout.

Technical Specifications

Motherboard	ChiTu L 5.5 V3
Board Size	120 × 85 mm
Processor	STM32F407 (32-bit, up to 168 MHz)
Power Input	12–24 V DC; original listing specifies 5–15 A (verify your setup)
Motor Driver	Allegro A4988
LCD Interface	MIPI; specific model and connector compatibility required
Touchscreen Options	2.8 / 3.5 / 4.3 / 5.0-inch TFT
Listed Data Interfaces	USB flash drive, network port, Wi-Fi (hardware-dependent)
Slicing Software / Format	CHITUBOX / .ctb

What's Included

Board Only

ChiTu L V3 controller motherboard.

Board + Touchscreen

ChiTu L V3 motherboard, selected TFT touchscreen and 50 cm FFC cable.

The original listing also mentions complimentary items without identifying them. The resin-curing LCD is not included unless expressly listed in the selected package.

Installation & Safety

Disconnect power before connecting the motherboard, motor or LCD cable.
Confirm DC power polarity. Reversing positive and negative connections may damage the board.
Match the LCD wiring and FPGA firmware to the exact panel. Never connect Sharp03 or DXQ608-03 directly.
Check the Z-axis direction. The original instructions refer to the M8004 machine parameter; use the reference parameter file only after verifying the procedure for your machine.

ChiTu L V3 motherboard wiring and LCD installation reference — Controller board connection reference

ChiTu L V3 12 to 24 volt DC power input and polarity diagram — Power input and polarity reference

Full setup information: Official ChiTu L V3 installation instructions.

Frequently Asked Questions

Which printer is officially listed for the ChiTu L V3?

The official V3 compatibility guide lists the Creality LD-002R with the 5.5-inch 2K LS055R1SX04 RGB LCD. You still need to verify the original hardware and wiring before replacement.

Can I use this motherboard with an ELEGOO Mars or another resin printer?

Do not assume it is a direct replacement. Other printers require individual checks of the original board, LCD part number, connector, wiring, mounting space and matching firmware.

Does the ChiTu L V3 support both mono and RGB LCDs?

Yes, for selected panel models listed in the official V3 compatibility guide. Screen size and resolution alone are not sufficient to establish compatibility.

Can I use a Sharp03 or DXQ608-03 screen?

No. The original installation notice warns that these LCD connections can damage the motherboard's U3 chip.

What is the difference between Touch Screen Size and Firmware Option?

Touch Screen Size refers to the control touchscreen package. Firmware Option refers to the configuration for the resin-curing LCD panel. Match the latter to the exact LCD model.

Does the package include a resin-curing LCD panel?

No resin-curing LCD is listed as part of the standard board-only or controller-plus-touchscreen packages. Please confirm the selected package contents before ordering.

Does the ChiTu L V3 work with CHITUBOX?

Yes. The original specifications list CHITUBOX and the .ctb sliced file format. Confirm the correct machine profile and firmware for your configuration.

Where can I find compatible firmware and wiring instructions?

Use the official V3 compatibility and firmware guide and choose the instructions for your specific LCD model.