Lcd Monitor Description - HannStar HQ171D Service Manual

H a n n S t a r D i s p l a y C o r p .
Document Title
Document No.

4. LCD Monitor Description

Assembly Description
The LCD MONITOR will contain a main board, a power board, an audio 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.
Power board
(Include: adapter, inverter)
AC-IN
100V-240V
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.
HQ171D_XY _HSM
Monitor Block Diagram
CCFL Drive.
Audio board
Flat Panel and
CCFL backlight
main board
Key board
HOST Computer
Page No. 8 8 / 87
Revision
07/08/09
RS232 Connector
For white balance
adjustment in factory
mode
Video signal, DDC