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5. INVERTER BOARD
5.1
Description
The Inverter board is designed for lighting up the back-lights of LCD module.
5.2
Electrical characteristics
5.2.1
FOR Fujitsu PANEL FLC48SXC8V
MIN.
TYP.
MAX.
COMMENT
INPUT
VOLTAGE 11.4V 12.0V 12.6V
12V±5%
INPUT CURRENT
--------
2A
_
Vin=12V,
Vbrite=3.3V
Normal BACKLIGHT
VOLTAGE
-------- 700V
rms. --------
LAMP CURRENT
--------.
7mA rms
8mA rms
DRIVING
FREQUENCY
40KHz 50KHZ 60KHz
EFFICIENCY
-------- 80% --------
Vin = 12V,max
brightness
Vin ON/OFF sequence
--------
1S
--------
OLP TIME
--------
3S
_
Open lamp
protection time
BRIGHTNESS
RANGE
10% -------- 100%
Brightness control
0V
_
3.3V
3.3V, brightness
Max.
Brightness _
220cd/m
2
_
Strike voltage at 0°C
1600 Vrms
_
_
Operating life time
20,000 hrs
_
_
(note)
Note:
Life time (hr) can be defined as the time in which it continues to operate under the condition:
Ta=25±2°C, IL =7 mArms until one of the following event occurs:
1.
When the brightness becomes 50 %
2.
When the startup voltage (Vs) at 0°C becomes higher than the maximal value of Vs specified above.
Содержание AL922
Страница 21: ...21 3 3 BLOCK DIAGRAM ...
Страница 31: ...31 7 TROUBLESHOOTING 7 1 Main Procedure ...
Страница 32: ...32 7 1 1 Power Circuit Troubleshooting ...
Страница 33: ...33 7 1 2 Backlights Troubleshooting ...
Страница 34: ...34 7 1 3 Performance Troubleshooting ...
Страница 35: ...35 7 1 4 Function Troubleshooting ...
Страница 38: ...38 Back Cover Cable Cover Gap 0 8 mm B 1 2 mm Base Cover Neck Cover Gap 0 8 mm C 1 2 mm ...
Страница 42: ...42 WAVESHAPE ...
Страница 48: ...48 APPENDIX A PARTS LISTS ...
Страница 50: ...50 A 4 461A7830011 Firmware Ctrl Board VL 901 ...
Страница 53: ...53 APPENDIX B DISPLAY UNIT ASSEMBLY ...
Страница 61: ...61 APPENDIX C P C B A ASSEMBLY ...