Firmware Specifications - Acer AT4220A Service Manual

Firmware Specifications

Preset Mode for VGA Input
16 factory preset modes for VGA inputs are saved during the manufacturing process.
Preset mode Pixel Format Hor. Freq. (kHz) Hor. Polarity Vert. Freq. (Hz) Vertical Polarity Standard
1 720*400
2 640*480
3 640*480
4 640*480
5 640*480
6 800*600
7 800*600
8 800*600
9 800*600
10 800*600
11 1024*768
12 1024*768
13 1024*768
14 1366*768
15 832*624
16 1024*768
Power Saving
While VGA is selected to input, this LCD TV is equipped with a power management according to
VESA DPMS. There is a delay of 30 seconds before the transition from on-state to power saving
state to avoid unintentionally entering of a power saving state during display resolution and
timing mode changes. During the period of delay, the LED shall indicate green color and OSD will
show "No VGA connection". Transition from any power saving state to another can be
instantaneous. The recovery from off-state requires no manual power on.
Mode
Power-On
Stand-by
Suspend
Off-state
Power off
Sync on: normal operation
•
Sync off:
•
34
31.47
31.47
37.861
37.50
43.4
35.156
37.879
48.077
46.875
53.7
48.363
56.476
60.023
47.7
49.7
60.2
Hsync Vsync
On On
Off On
On Off
Off Off
-
-
-
-
-
-
+
+
+
+
-
-
+
+
-
-
Video Power
Active < 180W
Off < 5W
Off < 5W
Off < 5W
< 5W
70 +
60 -
72 -
75 -
85 -
56 +
60 +
72 +
75 +
85 +
60 -
70 -
75 +
60 +
75 -
75 -
Indication Recovery time
Green
Red
Red
Red
Dark
VGA
VGA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
MAC
MAC
--
<5s
<5s
<5s
Turn on < 5s
Chapter 1