
3
2. ELECTRICAL REQUIREMENTS
2.1 Standard Test Conditions
All tests shall be performed under the following conditions, unless otherwise specified.
Ambient light:
225 lux
Viewing distance : 50 cm in front of LCD panel
Warrn up time
All specifications: 30 minutes
Fully functional:
5 seconds
Measuring Equipment:
Chroma 2250 signal generator or equivalent, directly
Connected to the monitor under test.
Minolta CA100 photometer, or equivalent
Control settings
User brightness control:
Maximum (unless otherwise specified )
User contrast control:
Typical (unless otherwise specified )
User red/white balance,
Green/white balance and
Blue/white balance control: In the center (unless otherwise specified )
Power input :
110Vac or 230Vac
Ambient temperature :
20
±
5
˚
C ( 68
±
9
˚
F)
Analog input mode :
1280 x1024 /60 Hz
2.1.1
MEASUREMENT SYSTEMS
The units of measure stated in this document are listed below:
1 gamma = 1 nano tesla
1 tesla = 10,000 gauss
cm = in x 2.54
lb = kg x 2.2
degrees F = [°C x 1.8] + 32
degrees C = [°F - 32]/1.8
u' = 4x/(-2x + 12y + 3)
v' = 9y/(-2x + 12y + 3)
x = (27u'/4)/[(9u'/2) - 12v' + 9]
y = (3v')/[(9u'/2) - 12v' + 9]
nits = cd/(m2) = Ft-L x 3.426
lux = foot-candle x 10.76
2.2 LCD monitor General specification
Panel Type : 19 “ active matrix color TFT LCD
1). FUJITSU FLC48SXC8V
2). SANYO TM190SX-70N01
Display size : 376.32mm(H) x 301.056mm(V)
Display mode :
VGA 720 X 400 (70 Hz)
VGA 640 X 480 (60/70/75 Hz)
SVGA 800 X 600 (60/70/75 Hz)
XGA 1024 X 768 (60/70/75 Hz)
Содержание AL1931
Страница 27: ...26 3 3 BLOCK DIAGRAM ...
Страница 34: ...33 5 TROUBLESHOOTING 5 1 Main Procedure ...
Страница 35: ...34 5 1 1 Power Circuit Troubleshooting ...
Страница 36: ...35 5 1 2 Backlights Troubleshooting ...
Страница 37: ...36 5 1 3 Performance Troubleshooting ...
Страница 38: ...37 5 1 4 Function Troubleshooting ...
Страница 44: ...43 WAVESHAPE ...
Страница 50: ...49 APPENDIX A PARTS LISTS ...
Страница 51: ...50 A FRU Board A 1 454AA030001 PCBA Key Board VK 903 ...
Страница 52: ...51 A 2 461AA030001 Firmware CTRL Board VL 903 ...
Страница 53: ...52 A 3 455AA030001 PCBA D D INV Board Vp 903 ...
Страница 54: ...53 Appendix B DISPLAY Assembly ...
Страница 55: ...54 ...
Страница 58: ...57 ...
Страница 60: ...60 Appendix C PCBA Assembly ...
Страница 61: ...61 ...
Страница 63: ...63 ...
Страница 64: ...64 ...
Страница 65: ...65 ...
Страница 66: ...66 ...
Страница 67: ...67 ...
Страница 68: ...68 ...
Страница 69: ...69 ...
Страница 70: ...70 ...
Страница 71: ...71 ...
Страница 72: ...72 ...
Страница 77: ...77 ...