Key facts
- Manuals
- 1
- Languages
- ZH
- Last added
- 2026-10-03
Featured Changrui manuals

Changrui M969V User Manual
The Changrui M969V is a multi‑function LCD display driver board with HDMI, DVI, DP and VGA inputs, supporting UHD resolutions up to 3840×2160. The manual provides an overview of the product, performance specifications, physical dimensions, and detailed wiring diagrams.
It also explains how to perform ISP firmware upgrades, configure communication ports, operate the PC control software, and troubleshoot common issues such as power‑on failures or serial‑port errors. This manual is written in Chinese.
Covers: Product Introduction · Performance Indicators · Physical Dimensions · Software ISP Upgrade · Common Fault Analysis · PC Software Usage
Latest Changrui manuals
Changrui M969V User Manual
User Manual 32 pages · 2.5 MB · ZHUser manual for the Changrui M969V multi‑function LCD driver board, covering specifications, installation, software upgrade and troubleshooting.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Changrui manuals
What should I check if the board does not power on?
Verify that the power cable is intact, the mains supply is connected, the power switch is on, and that any fuse is not blown. Also ensure the board is receiving power before attempting further troubleshooting.
How do I set the correct COM port for communication?
Open the Windows Device Manager, expand “Ports (COM & LPT)”, and note the COM number assigned to the RS‑232 cable. Select that COM port in the software’s communication settings.
