Manual of LM270QQ1 LCD Controller Board
This manual is for QAREQU LM270QQ LCD Controller.
Note:
- Depending on graphics card, a single DP connection can support up to 5K resolution (like M2 MacBook Pro). Some graphics cards require 2 DP cables to reach 5K resolution. This board comes with 1 DP port only (DP 1.4)
- For MacBook Pro 13" M1, original data cable is not for 5K, please use latest Thunderbolt 3 or USB-C cable
- Do not use converter adapter/ cable in between, directly connect computer to the board
- Never put metal material under the board
- Chipset is hot after power on, it is normal
- Different iMac LCD panel uses different driver, the LCD controller board is not cross-compatible
Compatibility:
- LM270QQ1-SDA2
- LM270QQ1-SDA3
- LM270QQ1-SDB1
- LM270QQ1-SDC1
- LM270QQ1-SDD1
- LM270QQ1-SDE1
- LM270QQ1-SDF1
Port Connection:
Cable Connection:
- Backlight cable and LVDS cable direction cannot be reversed, otherwise there will be no backlight and no video
- Backlight cable Red wire is on the right
Specifications:
- DP 1.4 resolution: 5K 60Hz (8-bit color) and 4K 144Hz
- Type C resolution: 5K 60Hz (8-bit color)
- HDMI 2.0 resolution: 4K 60Hz
- USB port: For mouse and keyboard only
- Audio: 3.5mm output, 4pin speaker connector
- DC input: 12V 8A
- Board size: 160 x 88mm (6.3 x 3.5 inch)