Acer X223, Руководство по обслуживанию

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1.1 SCOPE
This document defines the design and performance
requirements for an 20/22W inch diagonal , flat panel
monitor .The display element shall be a WSXGA
(1680x1050) resolution TFT-LCD (Thin Film Transistor
Liquid Crystal Display).16.7M color(RGB 6bits+FRC)
images are displayed on the panel.Video input signals are
analog RGB (0.7Vp-p). When the systemis powered-on ,
previously stored screen parameters for a pre-defined
mode will be recalled if the operating mode is one of stored
in memory( 19 factory , 9 users timing ).This monitor
operates normal by non-interlaced mode. DDC (Display
Data Channel) function is DDC2Bi compliance Power
saving function complies with the DPMS (Display Power
Management Signaling) standard.
The LCD monitor consists of an interface board , a power board
, a function key board and two speaker (1W)(with audio)
The interface board will house the flat panel control logic ,
brightness control logic, audio function control (option), key
function control, DDC and DC to DC conversion to supply the
appropriate power to the whole board and LCD flat panel , and
transmitting LVDS signals into LCD flat panel module to drive
the LCD display circuit .
The power board will support main power DC5V to interface
board, and the power DC5.3V to audio function power of
interface board,and drive the two CCFLs (Cold Cathode
Fluorescent Tube).The interface board provides the power ON /
OFF control over the whole monitor and control for DPMS LED
indicator to function key board.
1.2 GENERAL REQUIREMENTS
1.2.1 Test Condition
Brightness level & contrast level max. Full white
pattern test mode following spec. Warm up more than
1 hr, ambient light < 10 Lux , Luminance meter CA110
or BM7 or same equipment .
1.2.2 Test Equipment
The reference signal source is a calibrated Chroma
2135 video generator or higher.The use of other
signal generators during qualification and production
is acceptable provided the product complies with this
specification.
1.3 ELECTRICAL
This section describes the electricalrequirement of the
monitor.The block diagram in Figure1 illustrates the various
electrical sub-system.
1.3.1 Interface Connectors
1.3.1.1 Power Connector and Cables
The AC input shall have an IEC/CEE-22 type male
power receptacle for connection to mains power.
The power cord shall be with length of 1.8+/-0.005
meters.
1.3.1.2 Video Signal Connectors and Cable
The signal cable shall be 1.8 0.005 meters long.
At the end of the cable shall be a molded-over,
shielded,triple row, 15 position, D-subminiature
connector. The CPU connection shall have captive
screw locks, which will be adequate for hand
tightening. The monitor connection may use small
screws.
+/-
1. Product Specification
LCD Flat Pane l
Powe r Board
AC to DC Adapter,
DC to DC Converter,
DC to AC Inverter.
1W*2
Speaker
(Option)
CCFT Drive
F
u
nc
ti
on
ke
y
inp
ut
Panel data & control, DC power
Inverter control
Audio Source AC - IN
Figure 1
Monitor Block Diagram
A
udio
li
ne
inp
ut
Function
Key Board
Host Computer
V
ide
o
S
igna
l
input
&
D
D
C
Speaker line input
Inte rface Board
Flat Panel Controller, DDC
Audio
AM P.
(Option)
DC 5.3V (Audio)
DC 5V
SPEC
Signal Input Frequency
Analog :
H : 30kHz~81kHz
(Analog) V : 56Hz~76Hz
Pixel clock 165MHz (Max)
Video Input Analog 0.7Vp-p
Display Pixels 640 x 480 (VGA) ~ 1680 x 1050 (W SXGA)
Sync Signal Separate SYNC for TTL (N or P)
Signal Input Frequency
Digital :
H : 30kHz~81kHz
(Digital) V : 56Hz~76Hz
Pixel clock 165MHz (Max)
Video Input Analog 0.7Vp-p
Input Impedance 75 Ω
Display Pixels 640 x 480 (VGA) ~ 1680 x 1050 (W SXGA)
Connector AC Input AC100V ~ AC240V ± 10% 50/60Hz , 3 pin AC power cord
Input connector D-SUB 15 pin & DVI-D
Audio Jack
(OPTIONAL)
Audio input 3.6F
Power Consumption AC in 100V~240V Active 48W (with Audio), active 38W, power saving < 2W
User's Control Front Empowering,Auto Adjust,Adjust(-),Adjust (+),Menu,Power
OSD
Contrast , Brightness , Position ,Clock ,Phase
,Analog/Digital,RESET, Color , Language select , Audio
(option), etc.
Pre-Defined Timing Factory 19
User 9
Plug and Play VESA DDC2Bi
Power Saving VESA DPMS
Input Signal Counter Tolerance
≦ H ± 1kHz, ≦ V ± 1 Hz
ITEM
MONITOR SPECIFICATIONS
2
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ACER X223W