ViewSonic VG930M - 19" LCD Monitor Service Manual page 22

Input Voltage(V)
90Vac~264Vac
47~63Hz
PROTECT FOR OVER-CURRENT
Output Voltage (V)
Hi-POT TEST 3KVac / 3Sec
INSULATION IMPEDANCE INPUT 500Vdc , INSULATION IMPEDANCE > 100M Ohm
GND TEST INPUT 25Adc / 3 Sec , RESISTANCE CONNECT GROUNS <100m Ohm
INVERTER INTRODUCTION : 17 '' and 19 '' PANEL LCD MONITOR
1) 1 .-4 lamp type of 17 '' and 19 '' PANEL
2) 2. SPEC REQUIREMENT
Items
1 Output Current (mA)
Output Voltage
2
(Vrms)
Lamp Frequency
3
(kHz)
4 On/Off Control
Dim Adjust (Lamp
5
Current Control)
Kick-Off
6
Voltage(Vrms)
ViewSonic Corporation
Output(V)
+24
+12
+5
-8
24
12
Sign.
Lout1.2 Vin=24V
Vin=24V
f Vin=24V
On Vin=24V, On/Off=3.3V or 5V
Off Vin=24V, On/Off=0V
BL-ADJ = 3.3V, Max Current
BL-ADJ
BL-ADJ = 0V, Min Current
Vk-off
Output Current limits (A)
<2A
<4
<6
<4
Voltage limit (V)
Condition
BL-ADJ=0V
BL-ADJ=3.3V
BL-ADJ=3.3V
BL-ADJ =3.3V
Kick-Off
Confidential - Do Not Copy
19
38
20
Min Typ
3.0 3.5
6.0 6.5
6.5 7.0
7.0 7.5
560 660
45 50
Normal Operation
Shunt-down (Lamp off)
0V ~ 3.3V
More than 1500
VG930m-3_VA930m-1
Max
4.0
7.5
7.5
8.0
760
55