Acer AL2623W Service Manual - Page 14

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Acer AL2623W Service Manual
Acer
ISP MODE
1.6 Burn-in (Aging) Pattern
1.6.1 Burn-in patterns are: full Green, Blue, White, Black and Red
1.6.2 It will enter burn-in mode (aging mode) on condition that Power on and in the factory mode Without
VGA ,
1.6.3 Exit burn-in mode by plug in the VGA cable, then power on.
1.7 Warm Up
All test units have to be done warm up after at least 2 hours in a room with temperature of 40±5°C.
(Except particular requirement)

2. INPUT SIGNAL

2.1 Video Signal Input
2.1.1 a. VESA Analog
The video input consists of red, green, and blue signals. The video signals are analog levels, where
0V corresponds to black and 700mV is the maximum signal amplitude. Input impedance of video
pins is 75 ohm ±1%.
Sync signal input
The capability of sync signal inputs shall include separate sync. Input impedance: 10K ohms the
signals are defined as follow:
Separate sync
Composite sync
Sync on Green
b. Digital signal (Option)
Standard DVI
2.1.2 Input signal mode
PRESET TEST MODE TIMING
Resolution (active
Mode
dot)
640x480@60Hz
VGA
640x480@72Hz
640x480@75Hz
MAC
VESA
720x400@70Hz
800x600@56Hz
800x600@60Hz
SVGA
800x600@72Hz
800x600@75Hz
MAC
[email protected] 1152x667 49.722
XGA
1024x768@70Hz
MAC
1152x870@75Hz
1152x864@75Hz
VESA
1280x960@60Hz
1280x1024@60Hz
SXGA
1280x1024@75Hz
1280x720@60Hz
VESA
1280x768@60Hz
1280x768@75Hz
●
●
TTL level, Positive/Negative
Resolution
(total dot)
800 x 525 31.469
832 x 520 37.861
840 x 500 37.500
900x449
1024 x 625 35.156
1056 x 628 37.879
1040 x 666 48.077
1056x625 46.875
1328x806 56.476
1568x909 68.700
1600x900 67.5
1800x1000 60
1688x1066 63.981
1688x1066 79.976
1650x750 44.955
1664x798 47.776
1696x805 60.289
Firstly enter the factory mode, then
ON
Press ◄ & ► at the same time, and
then press [POWER] for DC power on.
Horizontal
Vertical
Frequency
Frequency
(KHz)
(Hz)
59.941
72.809
75.000
35
66.66
31.469
70.087
56.250
60.317
72.188
75.000
74.55
70.069
75.000
75
60
60.020
75.025
59.940
59.870
74.893
13
Service Manual
Nominal
Pixel Clock
(MHz)
25.175
31.500
31.500
30.24
28.322
36.000
40.000
50.000
49.500
57.28
75.000
84.520
108
108
108.000
135.000
74.176
79.500
102.250