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1.3.4.3 Mode Recognition Pull-in
The monitor shall recognize preset modes within a
range of +/-1KHz whichever is less for horizontal ;
and within +/-1Hz for vertical.
1.3.4.4 User Display Modes
In addition to the factory pre-set video modes,
provisions shall be made to store up to 9 user
modes. If the current mode is a user mode, the
monitor shall select its previously stored settings.
If the user alters a setting, the new setting will be
stored in the same user mode. The user modes
are not affected by the pre-set command. If the
input signal requires a new user mode, storage of
the new format is automatically performed during
user adjustment of the display (if required).(
Please see Note.(4) )
Preset timing Chart
P reset T im in g C h a rt
H -S y nc
V -S y n c B an d W idth
Item
R eso lu tio n
(K H z)
(H z)
(M H z)
1
7 20 x 4 0 0
31 .4 72
70 .4
2 8 .3 25
2
6 40 x 4 8 0
31 .4 69
5 9 .9 4
2 5 .1 75
3
6 40 x 4 8 0
3 7.5
7 5
4
6 48 x 5 0 0
31 .2 34
5 7.73 5
3 1 .2 34
5
8 00 x 6 0 0
37 .8 79
60 .3
6
8 00 x 6 0 0
46 .8 75
7 5
7
10 2 4 x 76 8
48 .3 63
6 0
8
10 2 4 x 76 8
60 .0 23
7 5
78 .7 5
9
1 2 80 x 1 0 24
63 .9 81
6 0
10
1 2 80 x 1 0 24
79 .9 76
7 5
11
14 4 0 x 90 0
55 .4 69
5 9 .0 1
88 .7 5
12
14 4 0 x 90 0
55 .9 35
5 9.88 7
10 6 .5
13
14 4 0 x 90 0
70 .6 35
7 4 .9 8
1 3 6.75
14
12 8 0 x 72 0
45
6 0
74 .2 5
15
12 8 0 x 80 0
49 .7 02
6 0
16
12 8 0 x 80 0
62 .7 95
7 5
10 6 .5
17
1 6 00 x 1 2 00
75
6 0
18
1 6 00 x 1 2 00
74 .0 06
5 9.92 4
1 3 0.25
19
1 6 00 x 1 2 00
93 .7 5
7 5
20 2 .5
20
1 6 80 x 1 0 50
65 .2 9
5 9.95 4
1 4 6.25
21
1 6 80 x 1 0 50
64 .6 74
5 9.88 3
22
1 6 80 x 1 0 50
82 .3 06
7 4.89 2
23
1 9 20 x 1 2 00
74 .0 38
5 9 .9 5
24
1 9 20 x 1 2 00
74 .5 56
5 9.88 5
1 9 3.25
N O T E : (1 ) 76 ≦ F V ≦ 8 6 : m on ito r can d isp lay bu t do esn't gu aran tee.
(2 ) fV < 5 5, o r fV > 86 : w arn in g in v alid m o de.
(3 ) F acto ry m od el :
A fter w e first b urn th e co de into th e flash , every p reset-m o del w e run first m u st d o au to -adjustin g .
T h en it'll n ot d o au to -adjust again w h en w e chan ged p reset-m o de b ack in clu d in g A C o n /o ff D C on /o ff.
T h e on ly w ay th at preset-m o d e d o au to -ad ju st ag ain is p ress '' Internal F actory R eset''.
(4 ) U ser m od e :
T h e co de sh ou ld m em orize 9 tim in g m o de ex clusive o f p reset-m od es as u se m o de an d d o au to -adju stin g .
W h en u ser set a n ew m o de th at is no t am on g p reviou sly . It'll do auto-ad ju stin g th en b e so lv ed to u ser m o de
T h e new m o d e w ill ov erw rite the first m em o rized u ser m od es.
T h e user m o des b e cleared is sam e as F acto ry m od e. Ju st do '' In ternal F acto ry R eset''.
(5 ) Internal F acto ry R eset an d O S D F acto ry R eset behavior.
FACTORY PRESET VIDEO TIMINGS (DIGITAL INPUTS)
CEA-861-C
H-Active
V-Active
I/P
H-tot.
code
17,18
720
576
P
864
19
1280
720
P
1980
20
1920
1080
I
2640
21, 22
1440
576
I
1728
31
1920
1080
P
2640
39
1920
1080
I
2304
2, 3
720
480
P
858
4
1280
720
P
1650
5
1920
1080
I
2200
6, 7
1440
480
I
1716
16
1920
1080
P
2200
1. Product Specification (continued)
P o larity
S ou rce
H
V
-
+
V G A
-
-
V G A
3 1.5
-
-
V E S A
+
+
M A C
4 0
+
+
V E S A
4 9.5
+
+
V E S A
6 5
-
-
V E S A
+
+
V E S A
1 08
+
+
V E S A
1 35
+
+
V E S A
+
-
C V T -R B
-
+
C V T
-
+
C V T
+
+
C E A -8 61
8 3.5
-
+
C V T
-
+
C V T
1 62
+
+
V E S A
+
-
C V T -R B
+
+ /-
V E S A
-
+
C V T
1 19
+
-
C V T -R B
1 87
-
+
C V T
1 54
+
-
C V T -R B
+
-
C V T
Pixel
H-freq
V-freq
HB
V-tot.
VB
freq
Inputs
(kHz)
(Hz)
(MHz)
144
625
49
31.250
50.000
27.000
DVI,HDMI
700
750
30
37.500
50.000
74.250
DVI,HDMI
720
1125
22.5
28.125
50.000
74.250
DVI,HDMI
288
625
24.5
15.625
50.000
27.000
HDMI
720
1125
45
56.250
50.000
148.500
DVI,HDMI
384
1250
85
31.250
50.000
72.000
DVI,HDMI
138
525
45
31.469
59.940
27.000
DVI,HDMI
370
750
30
44.955
59.940
74.176
DVI,HDMI
280
1125
22.5
33.716
59.940
74.176
DVI,HDMI
276
525
22.5
15.734
59.940
27.000
HDMI
280
1125
45
67.433
59.940
148.352
DVI,HDMI
■ Digital inputs (DVI, HDMI): Conflicting video- and PC
timings are to be treated as Video timings with one
exception: 640x480p/60Hz timing to be treated as PC-timing.
■
Analog input (VGA) treats all timings as PC-timings.
1.3.5 Controller Requirements
1.3.5.1 General Requirements
The monitor shall include a controller capable of
converting the analog RGB signal from a standard
WUXGA resolution video controller in the CPU to a
signal which can be displayed on the panel. The
controller will include a PLL, A/D converters, LVDS
transmitter and other circuitry necessary to perform
its function. The PLL shall be stable enough to
ensure that a static image from the CPU is placed
in the same physical location on the flat panel in
each frame.
1.3.5.2 Video Stretching
The monitor shall contain provisions to "stretch" the
video signal, so that an input signal from the
computer in any resolution smaller than 1920 x
1200 is automatically expanded to fill the entire
screen.
1.3.5.3 Panel Timing and Interface
The controller supplied with the monitor shall
control all panel timing. This controller shall
adequately insulate the monitor from the computer,
so that no possible combination of input signals
from the computer shall cause damage to the flat
panel or any other component of the monitor. The
LCD panel interface shall support the TFT
standard.
1.3.6 DC - AC Inverter Requirements
The DC-AC inverter is on the power board. The
frequencies used by the DC-AC inverter used to power the
backlight shall be chosen so as to prevent any noticeable
effects on the flat panel (such as a rolling effect).
1.3.7 Power Supply Requirements
The AC to DC converter power supply for the monitor shall
be an external AC to DC converter "brick" This brick shall
have an IEC receptacle for main power input and a pin - in
---socket for DC power out. The brick shall provide
sufficient power for both the monitor and the backlight
assembly, and shall meet requirements specified in Table
2.
5
ACER G24
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