Epson PowerLite 5000 Service Manual page 103

EPSON PowerLite 5000 Service Manual
Continued from page 4-7
A
Connect the host computer
to the Computer In 1
interface.
Does a screen appear?
NO
Change the video mode by
pressing the computer or
video button.
Does a screen appear now?
NO
Replace the computer VGA
cable.
Does a screen appear now?
NO
Replace the main board.
Does a screen appear now?
NO
Replace the optical engine.
C
Is the picture quality good?
YES
Have the following devices
been checked?
• Computer In 2
• Video In
YES
• S-Video
Connect the device which
has not been checked.
YES
A
YES
Press the auto button.
YES
Is the picture quality good
now?
B
Make the adjustments
shown in Table 4-3 on page
4-8.
Is the picture quality good
now?
B
Figure 4-7
4-8
NO
Connect the CRT to the
monitor interface.
Does a screen appear on
the CRT?
YES
Replace the monitor cable.
NO
Does a screen appear on
the CRT now?
Replace the CRT monitor.
Does a screen appear on
the CRT now?
Replace the main board.
YES
NO
C
YES
NO
C
YES
NO
YES
NO
YES
NO
Go to Audio
Output