Akai LCT42Z7TAP, Service Manual

Page: 81 / 130

Product Specification
LC420WU1
Liquid Crystal Display
2. Absolute Maximum Ratings
The following items are maximum values which, if exceeded, may cause faulty operation or damage to the
LCD module.
Table 1. ABSOLUTE MAXIMUM RATINGS
Note2
°
C +50 0 T
OP
Operating Temperature
V
DC
+5.0 0 V
Br
Brightness Control Voltage
Note1
V
DC
+27.0 +21.6 V
BL
Backlight inverter
LCM
Unit
%RH 90 10 H
OP
Operating Ambient Humidity
%RH 90 10 H
ST
Storage Humidity
°
C +60 -20 T
ST
Storage Temperature
V
DC
+5.5 -0.3 VON/OFF ON/OFF Control Voltage
at 25
±
2
°
C V
DC
+14.0 -0.3 V
LCD
Power Input
Voltage
Max Min
Parameter Remark
Value
Symbol
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39
°
C Max. and no condensation of water
2. Abnormal visual problems by panel front side surface temperature can be occurred
in specific range (higher than 55
℃
), But materials(ex : polarizer) are not damaged
permanently in this range,
90%
10 20 30 40 50 60 70 80 0 -20
0
10
20
30
40
50
Dry Bulb Temperature [
°
C
]
Wet Bulb
Temperature [
°
C
]
Storage
Operation
Humidit
y
[(%)RH
]
10%
40%
60%
60
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