Akai LCT3285TAJ, Руководство по обслуживанию

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3.2.2 INVERTER CHARACTERISTICS (
Ta = 25 ± 2 ºC)
Value
Parameter Symbol
Min. Typ. Max.
Unit Note
Power Consumption P
BL
- 103 - W (5),(6), I
L
= 4.5mA
Input Voltage V
BL
22.8 24 25.2 V
DC
Input Current I
BL
- 4.3 - A Non Dimming
Input Ripple Noise - - - 500 mV
P-P
V
BL
=22.8V
2450
- -
V
RMS
Ta = 0 ºC
Backlight Turn on Voltage V
BS
2360
- -
V
RMS
Ta = 25 ºC
Oscillating Frequency F
W
59.5 62.5 65.5 kHz
Dimming frequency F
B
150 160 170 Hz
Minimum Duty Ratio D
MIN
- 20 - %
Note (1) Lamp current is measured by utilizing high frequency current meters as shown below:
Note (2) The lamp starting voltage V
S
should be applied to the lamp for more than 1 second under starting
up duration. Otherwise the lamp could not be lighted on completed.
Note (3) The lamp frequency may produce interference with horizontal synchronous frequency of the
display input signals, and it may result in line flow on the display. In order to avoid interference, the
lamp frequency should be detached from the horizontal synchronous frequency and its harmonics
as far as possible.
Note (4) The life time of a lamp is defined as when the brightness is larger than 50% of its original value
and the effective discharge length is longer than 80% of its original length (Effective discharge
length is defined as an area that has equal to or more than 70% brightness compared to the
brightness at the center point of lamp.) as the time in which it continues to operate under the
LCD
Module
Inverter
1
HV (Pink)
2
HV (White)
1
HV (Pink)
2
HV (White)
1
HV (Pink)
2
HV (White)
1
HV (Pink)
2
HV (White)
1
HV (Pink)
2
HV (White)
1
HV (Pink)
2
HV (White)
1
HV (Pink)
2
HV (White)
1
HV (Pink)
2
HV (White)
LV (Black+)
LV (White,-)
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
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