Hitachi CP-EX251N User Manual page 87

Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defect
When the projector is operating in Eco mode,
The OVER SCAN ratio is too big.
Excessive VIDEO NR.
The FRAME LOCK function cannot work on the
current input signal.
The SAVING function is working.
The COMMUNICATION TYPE for the CONTROL port
is set to NETWORK BRIDGE.
The NETWORK BRIDGE function is turned off.
The SAVING function is working.
Troubleshooting
Reference
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