H a n n S t a r D i s p l a y C o r p .
Document Title
HW191A_XY _HSM
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Document No.
Revision
07/08/13
The information contained in this document is the exclusive property of HannStar Display Corporation. It shall not be
disclosed,distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.
4. LCD Monitor Description
Assembly Description
The LCD MONITOR will contain a main board, a power board, and a key board which house the flat panel control logic,
brightness control logic and DDC.
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each
voltage.
Monitor Block Diagram
AC-IN
100V-240V
Power board
(Include: adapter, inverter)
Flat Panel and
CCFL backlight
main board
RS232 Connector
For white balance
adjustment in factory
mode
HOST Computer
CCFL Drive.
Video signal, DDC
Key board
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