Epson PowerLite 5000 Service Manual page 100

Power ON/OFF
Start
Press the power button on
the control panel.
Does the operation or lamp
indicator light up or blink?
NO
Press the power button on
the remote control.
Now does the operation or
lamp indicator light up or
blink?
NO
Is AC power applied to
the power supply unit
connector?
NO
Is the lamp cover secured to
the lower case?
YES
• Disconnect the power
cable.
• Disconnect the
Fast-on tab from the
safety switch.
• Measure the safety
switch resistance.
Is the safety switch
resistance almost 0 ohms?
YES
A
Figure 4-4
Disconnect all interface cables and the projector lens cover.
Then connect the power cable.
B
Does the exhaust fan work?
NO
YES
Replace the exhaust fan.
Now does the exhaust fan
work?
NO
Replace the main board.
Make sure CN600 is
YES
connected. Then replace
the control panel.
Replace the power supply
YES
unit.
Install the lamp cover and
NO
lamp inner housing again.
Replace the safety switch.
NO
Go to Start
EPSON PowerLite 5000 Service Manual
YES
Do the operation and lamp
indicators display the first 3
conditions described in the
table on the next page?
YES
Refer to the table on next
page according to the lamp
indication.
Press the Power button on the control
panel. Does the operation or lamp
indicator light up or blink?
Press the Power button on the control
panel. Does the operation or lamp
indicator light up or blink?
Press the Power button on the control
panel. Does the operation or lamp
indicator light up or blink?
AC Measurement Point
Caution:
Measure the resistance when the safety
switch has cooled down.
4-5
YES
Go to Display/
Picture.
NO
YES
NO
YES
NO
YES
NO
B