Recovering From Tamper Errors - NEC NC900C Installation Manual

3-2. Recovering from Tamper Errors

The tamper detection circuit is fitted in the projector.
If any of the following actions is performed, an error message will be displayed on the LCD screen of the main unit control
panel by tamper detection circuit.
Action
Cover removed
• Front cover
• Side cover
Slot device or blocking panel removed
• Blocking panel
• Media block
• Signal input board
TIP
Error codes can be checked when using the DCC for S2.
While the above error messages are being displayed, encrypted contents cannot be displayed. Refer to "3-2-1. Procedure for
Recovering from Tamper Errors" (page 48) for details on how to recover from tamper errors.
Projector Adjustment and Connecting
Error code
177 Tamper Fail
486 Service Door Tamper
178 Marriage Tamper Fail
482 Physical Marriage Tamper
484 Marriage NOT Active
Error message
47