Inverter & Power; Inverter & Power(Q74A); Specification; Electrical Characteristics - BenQ Q74A Service Manual

INVERTER & POWER
▶ Inverter & POWER(Q74A)
L.I.P.S : LCD INVERTER POWER SYSTEM(FLF1742-20A)

▶ Specification

Operate 4 CCFL Lamps.
Current Feedback Control
Input Voltage : DC 12V.
When any lamp doesn't operate, the panel is under protection status.
Protection status means that circuit protect the other lamp.
PWM Control.
Remote Power On/Off control
High Efficiency

▶ Electrical Characteristics

Description
Input Voltage
Input Current
Output Current
Lamp Frequency
ON/OFF Control
Kick-Off
Voltage
Min Typ
11.0 12.0
1.5 1.7
5.0 6.0
40 47
Normal Operation
Shunt-down(Lamp off)
MORE THAN 1100
-13-
Q74A Service Manual
Max Sign
13.0 Vin
1.9 A
7.0 mArms
55 kHz
ON
OFF
Vrms
Remark
12Vdc
1ccfl current
Vin=12V
ON/OFF=5V
Vin=12V
ON/OFF=0V
Kick-Off