Acer NA23WABAS Service Manual page 6

PRESET PC TIMINGS (ANALOG AND DIGITAL
INPUTS) (For 2048x1152 LTM230TT01 projects)
H-Sync V-sync
Item Resolution
(kHz) (Hz)
1 640 х 480 31.469 59.94
2 800 х 600 35.156 56.250
3 800 х 600 37.879 60.317
4 1024 х 768 48.363 60.004
5 1280 х 960 60 60
6 1280 х 1024 63.981 60.02
7 1440 х 900 55.469 59.01
8 1440 х 900 55.935 59.887
9 1280 х 720 45 60
10 1280 х 800 49.702 59.810
11 1600 х 1200 75 60
12 1600 х 1200 74.006 59.924
13 1680 х 1050 65.29 59.954
14 1680 х 1050 64.674 59.883
15 1920 х 1200 74.038 59.95
16 1920 х 1200 74.556 59.885
17 2048 х 1152 71.52 60
18 2048 х 1152 70.992 59.909
Digital inputs (DVI-D: 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.
PRESET PC TIMINGS (ANALOG AND DIGITAL INPUTS)
(For 1920x1080 LTM230HT01 projects)
H-Sync V-sync
Item Resolution
(kHz) (Hz)
1 640 х 480 31.469 59.941
2 640 х 480 35 66.66
3 640 х 480 37.861 72.809
4 720 х 400 31.469 70.087
5 800 х 600 35.156 56.250
6 800 х 600 37.879 60.317
7 800 х 600 48.077 72.188
8 1024 х 768 48.363 60.004
9 1024 х 768 56.476 70.069
10 1152 х 864 67.5 75
11 1280 х 720 44.955 59.94
12 1280 х 800 49.702 59.810
13 1280 х 960 60 60
14 1280 х 1024 63.981 60.020
15 1366 х 768 47.712 60.015
16 1440 х 900 55.935 59.887
17 1680 х 1050 65.290 59.954
18 1600 х 1200 75 60
19 1920 х 1080 67.158 59.963
20 1920 х 1080 67.5 60
21 1920 х 1080 66.587 59.934
Digital inputs (DVI-D: 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. Product Specification (continued)
Band Width Polarity
Source
(MHz)
H V
25.175 - - VGA
36 + + VESA
40 + + VESA
65 - - VESA
108 + + VESA
108 + + VESA
88.75 + - CVT-RB
106.5 - + CVT
74.25 - + CEA
83.5 - + CVT
162 + + VESA
130.25 + - CVT-RB
146.25 - + CVT
119 + - CVT-RB
154 + - CVT-RB
193.25 - + CVT
197.967 - + CVT
156.75 + - CVT-RB
Band Width Polarity
Source
(MHz) H V
25.175 - - VGA
30.24 - - VESA
31.5 - - VESA
28.322 - + VESA
36 + + VESA
40 + + VESA
50 + + VESA
65 - - VESA
75 - - VESA
108 + + VESA
74.176 - + CEA
83.5 - + CVT
108 + + VESA
108 + + VESA
85.5 - + CVT
106.5 - + CVT
146.25 + - CVT
162 + + VESA
173 + - CVT
148.5 + - CEA
138.5 + - CVT-RB
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
2048x1152/ 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 2048 x
1152 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 V233H
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