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The light source for most flat panel displays is a cold cathode fluorescent backlight.
These backlights run on high AC voltage provided by an inverter that converts the
supplied DC power to AC and steps its voltage up for start-up. Once the backlight is
started, the inverter drops the voltage down to its operating level.
B-2 Safety Precautions
Before you configure and assemble the controller board for your flat panel display, it is
important to become familiar with the board layout and also follow certain basic safety
precautions
Make sure that at no time you are working on any electrical or electronic components while any
part of the system is energized Always disconnect the power! Use caution to protect the deli-
cate electronic components. Ground your self during the installation of the motherboard and
other components.
B-3 Configuring Your Controller
While your LCD controller is designed to drive a wide range of TFT LCD panels, many aspects
of the ASIC chip's panel interface are programmable through a micro-c ontroller with built-in
EEPROM. Check with the supplier of your controller to find a recommended LCD panel.
B-3-1 LCD with TTL Interface
Refer to the illustration below to configure your controller board for a LCD that accepts TTL
data source.
B-3-2 LCD with LVDS Receiver Interface
Make sure the kind of receiver of LCD display, and
connect it to right connecter.
When you use the controller subassembly with a
LVDS protocol-based LCD, you must install the
daughter board first. It consists of LVDS transmit-
ter ICs that convert CMOS/TTL data into LVDS
data stream.
Installing the LVDS Daughter Board
B-4 OSD Controls
The LCD controller includes an integrated RAM-based OSD controller. Through four front
panel controls you can view adjustable features of the LCD through the On-Screen Display.
PWS-1409/1419 User's Manual
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Troubleshooting
