5-2
1. Electric performance
1.1 Confirming the operation of operation SW
(1) Input XGA75 pattern “Crosshatch”.
(2) The picture must appear within four seconds after turning power switch ON.
(3) Confirm that Power-On Indicator is lit.
(4) Synchronization must not flow when power switch is turned ON and OFF.
(5) OSD must appear when Menu or Select button is pressed.
(6) The setting value must smoothly change and abnormalities such as noise must not occur when (
▲
) / (
▼
)
button is pressed.
(7) Press OSD OFF button, and confirm that OSD picture disappears.
1.2 Frequency change speed
(1) Change the preset timing.
(2) Confirm that it does not take so long time to change the picture when frequency is changed. (Within five
seconds)
1.3 Confirming power management function
(1) Input the specified timing with signal generator, and set the pattern to full white.
Mode
H
V
Power voltage
Input timing
Power consumption
Normal
On
On
AC240V
XGA75
25W
Standby
Off
On
AC240V
XGA75
3W
Suspend
On
Off
AC240V
XGA75
3W
Off
Off
Off
AC240V
XGA75
3W
2 Safety test
2.1 Isolation voltage
Confirm that the abnormality is never seen when AC1500V is applied for two seconds across AC earth GND
pin to chassis GND. Cut-off current must be 10mA.
2.2 Ground resistance
Confirm that the resistance must be less than 100m ohms or less when 25A is applied across AC earth GND
pin to chassis GND.