Symptom: No Image Displays, Just Black Screen (Or Green Screen In 3D) - Christie CP2210 Service Manual

Section 4: Troubleshooting

4.2.8 Symptom: No image displays, just black screen (or green screen in 3D)

A black screen error occurs when the Link Decrypter is not processing video content and produces a fixed,
solid image. A black screen will appear when not processing 2D content and a green will appear when not
processing 3D content.
1. Ensure the service doors are closed.
2. Ensure that marriage is established. Check the Marriage light on the main window of the TPC.
NOTE: It takes 45-60 seconds after reset or power-up for the Link Decrypter to verify the marriage with
the ICP. During this time, the LD will not accept any TLS connections or keys from the Cinema Server.
3. The LD must not be in a FIPS error state. There are multiple integrity checks performed by the LD on
startup and operation. A failure of any of these checks will cause the LD to enter the FIPS error state,
during which no cryptographic operation is allowed (No TLS connections, no Cinelink-2 decryption).
NOTE: If the LD is in the FIPS error state, you can try resetting or power-cycling the LD (the projector) to
attempt to recover.
4. Ensure the LD logs are not full. If so, the LD will not accept any Cinelink-2 keys until enough log records
have been read by the Security Manager (SM) to allow the LD to create new log records. It is the
responsibility of the Cinema Server to read/clear the LD logs.
5. The LD Real Time Clock must be set correctly. If it is not correct, it may reject the client certificate
presented by the server during TLS negotiations.
6. Ensure the LD security cover is intact. These are the metal covers on the LD card itself. Also, ensure the
battery is charged and that the LD keys and certificate are intact.
4-4 CP2210 Service Manual
020-100556-04 Rev. 1 (01-2012)