Haier LE24P610, Руководство по обслуживанию

Страница: 26 / 62

Service Manual
TV Haier LE24P610
24
3.4 Electrical Characteristics
3.4.1
TFT LCD MODULE
Parameter Symbol Min. Typ. Max. Unit
Power Supply Voltage V
DD
4.5 5 5.5 V
Ripple Voltage V
RP
- - 300 mA
Power on Rush Current I
RUSH
- 2 3 A
Power Supply Current I
DD
- 900 1100 mA
Power Consumption Plcd - 4.5 5.5 Watt
LVDS differential input voltage Vid 200 - 600 mV
LVDS common input voltage Vic 1.0 1.2 1.5 V
Logic High input voltage VIH - - +100 mV
Logic Low input voltage VIL -100 - - mV
3.4.2 Vcc Power Dip Condition:
Dip condition: 4.0
≤
Vcc
≤
4.5
，
Td
≤
20ms
3.4.3 BACKLIGHT UNIT (LED matrix is 12S4P)
Ta =25±2℃
Parameter Symbol Min. Typ. Max. Unit
Light Bar Input Voltage VLED 33.6 38.4 42 V
DC
Light Bar Input Voltage VPIN 285 300 315 mA
DC
P0wer Consumption PLED - 11.52 13.23 W
LED Life Time LBL 30000 - - Hrs
IFP LED peak forward current ILED - - 180 mA
DC
Note (1) The LED can work normally if the PWM dimming ratio range is 100% and the operation current is 300mA.
Note (2) PLED = (ILED
×
4)
×
VLED, LED matrix is 12S4P.The The Vf difference of each string should be within 3V.
Note (3) The lifetime of LED is defined as the time when it continues to operate under the conditions at Ta = 25
±
2
℃
and I=75 mA (Per EA) until the brightness becomes
≤
50% of its original value.
Note(4): Pulse Width
≤
10 msec and Duty
≤
1/10.