Acer NA23WABAS Service Manual page 12

PRESET PC TIMINGS (ANALOG AND DIGITAL
INPUTS)
H-Sync
Item Resolution
(kHz)
1 640 х 480 31.5
2 640 х 480 35
3 640 х 480 37.9
4 31.5
720 х 400
5 35.2
800 х 600
6 37.9
800 х 600
7 800 х 600 48.1
8 1024 x 600 37.3
9 1024 х 768 48.4
10 56.5
1024 х 768
11 67.5
1152 х 864
12 44.9
1280 х 720
13 1280 х 800 49.7
14 1280 х 960 60
15 1280 х 1024 64
16 47.7
1360 х 768
17 55.9
1440 х 900
18 75
1600 х 1200
19 1680 х 1050 65.3
20 67.2
1920 х 1080
21 1920 х 1080 67.5
22 1920 х 1080 66.6
PRESET VIDEO TIMING(DIGITAL INPUT)
CEA-861 H-Back
H-Active V-Active I/P H-Total
-c-code Porch
1 640 480 P 800 48
2,3 720 480 P 858 60
4 1280 720 P 1650 220
5 1920 1080 I 2200 148
16 1920 1080 P 2200 148
17,18 720 576 P 864 68
19 1280 720 P 1980 220
20 1920 1080 I 2640 148
31 1920 1080 P 2640 148
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
1920x1080 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
1080 is automatically expanded to fill the entire
screen.
1. Product Specification (continued)
V-sync Band Width Polarity
Source
(Hz) (MHz) H V
60 25.175 - - VGA
67 30.24 - - MAC
72 31.5 - - VES A
70 28.322 - + VGA
56 36 + + VES A
60 40 + + VES A
72 50 + + VES A
60 49 - + CVT
60 65 - - VES A
70 75 - - VES A
75 108 + + VES A
60 74.17 + + VES A
60 83.5 - + CVT
60 108 + + VES A
60 108 + + VES A
60 85.5 + + VES A
60 106.5 - + CVT
60 162 + + VES A
60 146.25 - + CVT
60 173 - + CVT
60 148.5 + + CEA
60 138.5 + - CVT-RB
V-Back H-Freq. V-Freq. P-Freq.
H-Width V-Total V-Width
Porch (kHz) (Hz) (MHz)
96 525 33 2 31.5 60
62 525 30 6 31.5 60 27.027 -
40 750 20 5 45 60
44 1125 15 5 33.75 60
44 1125 36 5 67.5 60
64 625 39 5 31.25 50
40 750 20 5 37.5 50
44 1125 15 5 28.125 50
44 1125 36 5 56.25 50
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
Pol.
H V
assembly, and shall meet requirements specified in Table
25.2 - -
-
2.
74.25 + +
74.25 + +
148.5 + +
27 - -
74.25 + +
74.25 + +
148.5 + +
11
ACER V233H
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