Hitachi CP-EX400 User Manual page 71

Troubleshooting
Related messages (continued)
Message Description
The internal temperature is rising. The projector is
operating in low power.
67 ~ 68
57
(
Cleaning and replacing the
55, 67
(
The button operation is not available.
The COMPUTER IN2/MONITOR OUT port is selected
as the picture input source even if MONITOR OUT is
41).
selected for COMPUTER IN2(
COMPUTER IN2/MONITOR OUT
71