Hitachi CP-WU8450 User Manual

32

About the phenomenon confused with a machine defect, check and cope with it 

according to the following table.
Phenomena that may be easy to be mistaken for machine defects

Phenomenon

Cases not involving a machine defect

Reference

page

Intellectual 

Stack does not 

function.

projector. 
To use the Intellectual Stack feature, 

supply AC power to both the Main and Sub 

projectors.  If AC power is supplied to only 

one of the projectors, Intellectual Stack is 

disabled.  



 in

Sub projectors is not properly connected. 
To use the Intellectual Stack feature, connect 

an RS-232C cross cable between the Main 

and Sub projectors.  If the cable is not 

connected, the Main projector cannot control 

the Sub projector.  



are not performed correctly. 
Check the settings of the STACK menu on 

the Main and Sub projectors.  To use the 

Intellectual Stack feature, one projector must 

be set to Main and the other projector must 

be set to Sub.  



Signal cables are not connected correctly. 
Check the connection of cables.  Also check 

that the cable connection matches with the 

port settings in the menu.





 in

The Main and 

Sub projector do 

not operate in 

synchronization.

Sub projectors is not properly connected. 
Connect the RS-232C cable properly and 

restart the Main projector.

