Burn-In (Aging) Pattern; Warm Up; Input Signal; Video Signal Input - Acer P221W Service Manual

Acer
1.5.2 Hot Key Operation
FUNCTION
AUTO
FACTORY
MODE

1.6 Burn-in (Aging) Pattern

1.6.1 Burn-in patterns are: full Red, Green, Blue, White and Black
1.6.2 Stop burn-in pattern by providing with video signal from D-sub or DVI-D connector
1.6.3 Enter or exit burn-in mode by setting "burn-in" to be "on" or "off" in the factory mode

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 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: 2k2 ohms the signals
are defined as follow:
Separate sync
2.1.2 Input signal mode
PRESET TEST MODE TIMING
Mode Resolution
640*480@60Hz
640*480@72Hz
VGA
640*480@75Hz
800*600@56Hz
800*600@60Hz
SVGA
800*600@72Hz
800*600@75Hz
1024*768@60Hz
1024*768@70Hz
XGA
1024*768@75Hz
1152*864@75Hz
1280*960@60Hz
HOT KEY OPERATION
◄ ►
●
TTL level, Positive/Negative
Total
800*525
832*520
840*500
1024*625
1056*628
1040*666
1056*625
1344*806
1328*806
1312*800
1600*900
1800*1000
MENU POWE
R
Press [AUTO] & [MENU] at the same
time, and then press [POWER] for DC
● ON power on. OSD menu will be shown
with "F" on the left top. Select "F" for
entering factory mode.
VESA MODES
Horizontal
Nominal
Sync
Frequency
Polarity
+/-0.5KHz
31.469 N
37.861 N
37.500 N
35.156 P
37.879 P
48.077 P
46.875 P
48.363 N
56.476 N
60.023 P
67.500 P
60.000 P
13
Service Manual
DESCRIPTION
Vertical
Nominal
Sync
Frequency
Polarity
+/-1Hz
59.941 N
72.809 N
75.000 N
56.250 P
60.317 P
72.188 P
75.000 P
60.004 N
70.069 N
75.029 P
75.000 P
60.000 P
Nominal
Pixel Clock
(MHz)
25.175
31.500
31.500
36.000
40.000
50.000
49.500
65.000
75.000
78.750
108.000
108.000