Runco QUANTUM COLOR Q-750I - Manual (Page 88)

Maintenance and Troubleshooting
72 Q-750i Series Installation/Operation Manual
PRE
L
IMINAR
Y
RGB-HD images appear
“noisy.” • Tracking and Phase
settings need adjustment.
• Manually adjust Tracking
and Phase settings (refer
to Fine Sync on page 59).
LED is flashing red. • Q-750i internal
temperature is too high
(Note).
• Power off the Q-750i and
allow it to cool down.
Ensure that the intake and
exhaust vents are not
blocked. Turn the
projector back on. If the
problem persists, please
contact Runco Technical
Support for assistance.
LED lights solid red. • Fans are not working
properly or power-on
self-test has failed (Note).
• Power off the Q-750i and
allow it to cool down. Turn
the projector back on. If
the problem persists,
please contact Runco
Technical Support for
assistance.
Table 5-1. Troubleshooting Chart (continued)
Symptom Possible Cause(s) Solution
Note: You can obtain more detailed information about the cause of the error condition using
RS-232 commands. Refer to RS-232 Error Codes on page 83 for more information.