Acer X193HQ Service Manual

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6.2 Circuit Operation Theory
I. Introduction:
X193HQ is a 18.5 inch and 24bits color TFT LCD monitor, which can support the resolution
up to 1366x768. It has VGA input and compliant with VESA specification to offer a smart power
management. The monitor has DDC/CI function to make the monitor communicate with PC by Acer
ADM DDC/CI software, and also it has ACM function to let the monitor contrast ratio up to 10000:1. It
also offers OSD Menu for users to control the adjustable items and get some information about this
monitor.
II. Block diagram
X193HQ consists of a main body and a stand (base). The main body contains a AUO
TFT LCD module with 2 CCFL lamps, a power board (includes AC/DC
、
DC/DC
、
inverter
and panel power source), a control board and an interface board. The block diagram is shown
as below.
Fig. Block diagram for X193HQ LCD monitor

Acer X193HQ Specifications

General

Display diagonal	18.5 \
Display resolution	1366 x 768 pixels
Viewable size, vertical	230 mm
Contrast ratio (typical)	-
Viewable size, horizontal	410 mm
Viewing angle, horizontal	160 °
Digital vertical frequency	55 - 75 Hz
Digital horizontal frequency	30 - 80 kHz
Display brightness (typical)	300 cd/m²
HDCP	Yes
Product color	Black
Panel mounting interface	100 x 100 mm
Power consumption (typical)	17 W
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (without stand)	163.7 mm
Width (without stand)	454 mm
Height (without stand)	334.7 mm
Weight (without stand)	3600 g