background image

 

2

1. Introduction 

 

MG21 is a compact size LCD controller with analog RGB (VGA) and DVI inputs. It uses the 
Genesis gm5621 chip and supports TFT LCD modules up to SXGA (1,280 x 1,024) native 
resolutions (1.31 MPixels) with 16,777,216 colors.  

 

For video inputs beyond the SXGA (1280 x 1024) resolution, the MG21 down scales the input 
video to the native resolution of the LCD, and then displays the image over the screen. It supports 
video input all the way to WUXGA (1920 x 1200).  

 

To Proceed: 

A. Make sure to use the correct parts and refer to Fig. 

4

 - the system connection diagram, to 

connect the MG21 card to the LCD correctly. 

B. Refer to this User’s Guide for operating procedures and cautions 

 

Important Notes

 – This product is designed for system developers and integrators. The  

manufacturer accepts no liability for damage or injury caused by the use of this product. It is the 
responsibility of the system developers, integrators, and other users to ensure: 

 

A. All required and appropriate safety measures are properly implemented.  
B. Obtain regulatory approvals as needed. 
C. Check power specifications and connections before turning on the power 

 

2. Features: 

 

 

 

3. MG21 Mechanical Dimensions 
 

The dimensions of the main controller board and its connectors are shown in Fig. 2: 

Input Video Signal  

Analog RGB (0.7 Vp-p), Digital RGB (DVI)  

Supported Resolution 

DOS, VGA, SVGA, XGA, SXGA, WXGA, UXGA, WUXGA 

Color Depth 

24 bits (16.8 million) colors 

H-Sync Range 

30 - 80 KHz  

V-Sync Range 

60 - 75 Hz 

LCD Interface 

LVDS 

LCD Voltage Supported   3.3V / 5V / 12V 

Audio Output Power 

2 Watts x 2 Channels 

Plug & Play 

Supported 

Power Input 

12V (± 0.6V) DC 

Power Mode 

Normal & Power Saving 

Power Consumption 

Normal, 3 Watts typ. w/o load. Power Saving, < 1 Watt 

Controller Dimensions 

110 mm x 82 mm x 14 mm ( H max) 

OSD Board Dimensions 

104 mm x 22 mm  

Operating Temp. Range 

0 to 60 degree C 

Humidity 

  

90% R.H. Max. 

Summary of Contents for MG21

Page 1: ...1 Landmark Technology Inc MG21 LCD Controller For TFT LCDs with Resolution up to 1 280 x 1 024 Version A August 8 2008...

Page 2: ...caused by the use of this product It is the responsibility of the system developers integrators and other users to ensure A All required and appropriate safety measures are properly implemented B Obt...

Page 3: ...dio Input Power Input Audio Output To Inverter To OSD Board LVDS Fig 2 The dimensions of the OSD board and its connectors are show in Fig 3 Fig 3 OSD Board Dimensions Power Menu Down Up 4 2 holes 97 3...

Page 4: ...tem Connection The typical connection diagram of the MG21 LCD controller to Landmark VHB LCD modules is illustrated in Fig 4 MG21 LCD Connector Inverter OSD board Power Supply Dimming On Off control I...

Page 5: ...x 400 31 5 70 37 9 60 48 1 72 SVGA 800 x 600 46 9 75 48 4 60 56 5 70 XGA 1024 x 768 60 0 75 64 0 60 SXGA 1280 x 1024 80 0 75 6 Connectors and Pin Assignments The connectors on the MG21 card and their...

Page 6: ...8 RxO0 Positive LVDS differential data CH0 Odd data 9 RxO1 Negative LVDS differential data CH1 Odd data 10 RxO1 Positive LVDS differential data CH1 Odd data 11 RxO2 Negative LVDS differential data CH...

Page 7: ...elected item to enter the next Menu UP DOWN Moves through various adjustments in each OSD Menu Also after the selected adjustment is activated use Up Down buttons to increase decrease the setting Hot...

Page 8: ...nus are reserved for the MG21 Version B Their functionality may not be implemented in the current Version A BIOS Making Adjustment When the OSD MENU is turned on the AUTO SETUP is highlighted Push the...

Page 9: ...RN 93 75 65 R B G EXIT If it is necessary to adjust the color tone please use the RED GREEN and BLUE adjustments Use the UP DOWN button to highlight the selected color to be adjusted and push the MENU...

Page 10: ...is XGA 1024 x 768 and if the video input resolution is set at SXGA 1280 x 1024 the MG21 will down scale the 1280 x 1024 image to 1024 x 768 and display it to fill the entire area of the screen However...

Reviews: