HDR Freesync 2xHDMI+2xDP Driver Board for 3840x2160 23.8inch LCD LM238WR2 LM238WR3 27.0inch LCD LM270WR2-SPA1 LM270WR2-SPA2
---The power adapter for the board is DC+12V 5.0A~8.0A. ---12V DC Adapter(with 5.5x2.5 male connector. The plug of the power cord is American standard): https://www.ebay.com/itm/402313739186 |
---Programmer for upgrading the firmware of this controller board of LVDS LCD: https://www.ebay.com/itm/193462681438 |
The DIY kits suitable for the following 3840x2160 4K LCD Model: | |||
LM238WR2-SPA1 | LM238WR3-SSB1 | LM270WR2-SPA1 | |
LM238WR2-SPB1 | LM270WR2-SPA2 | ||
LM238WR2-SPD1 | |||
LM270WR3-SSA3 | |||
LM270WR3-SPA1 | |||
LM270WR3-SSA1 | |||
LM270WR4-SSA1 | |||
LM270WR5-SSA1 | |||
LM270WR5-SSB1 |
---USB 3.0 to Displayport 4k adapter or HDMI-TO-DP adapter cannot be used as signal source for my this board+LCD. My this items cannot be fit for USB 3.0 to Displayport 4k adapter or HDMI-TO-DP adapter and it only can be connected to DP interface of the graphic card on the computer or notebook/laptop. ---The HDMI-TO-DP cable also cannot be used for this listing DP board+LCD. |
---Via HDMI cable connected to Raspberry Pi 3, the controller board+LCD works very well on the Raspberry Pi 3 with the following resolutions: 1920x1080 @ 50Hz and 3840x2160 @ 24Hz!
Content of the "config.txt" File on Raspberry:
--------------------------------
disable_overscan = 1
hdmi_force_hotplug = 1
hdmi_ignore_edid = 0xa5000080
hdmi_group = 2
hdmi_mode = 87
Hdmi_cvt = 3840 2160 24 3 0 0 0
framebuffer_width = 3840
framebuffer_height = 2160
max_framebuffer_width = 3840
max_framebuffer_height = 2160
hdmi_pixel_freq_limit = 400000000
gpu_mem = 256
# Uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
hdmi_drive = 2
# Enable audio (loads snd_bcm2835)
dtparam = audio = on
disable_camera_led = 1
start_x = 0
dtparam = i2c1 = on
. |
The 4K HDR Freesync controller board function description: | |||
1 | Power in (DC 12V: 5.5x2.5) | 6 |
Earphone out |
2 | HDMI in | 7 | Keyboard |
3 | HDMI in | 8 | Speaker out(2 X 10W(8Ω)) |
4 |
DP in | 9 | 4Lane HRB eDP out V-by-One 8 lane , Connector , 51 pins |
5 | DP in | 10 and 11 | LED backlight connector |
Board size | LxWxH=149x85x12 mm | ||
The keyboard function description: | |||
1 | Remote receiver | 5 | - |
2 | Power on/off | 6 | + |
3 | LED(red/green) | 7 |
Exit/Select |
4 |
Menu/Confirm |
Package includes: |
|
---1× HDR Freesync 2xHDMI+2xDP Mini Driver Board ---1× edp cable( length: 30cm) ---1× keyboard ---1× LCD's backlight cable |