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2-20 CP2000-M/MR Setup Guide

020-100205-03 Rev. 1 (05/09)

Section 2: Basic Operation

 Custom 3D sync output cable (GPIO) - available from RealD:

• For routing the projector’s output sync to your sync output device (connect from the

projector’s GPIO to the emitter or polarizer). NOTE: The GPIO connector can be accessed

from the right-side of the projector.

 Power supply for your sync output device, typically wired with the custom GPIO cable.

 Proper 3D configuration defined in the Channel: 3D Control menu. Use an internal test

pattern for best results.

2.12.2 Hardware Setup

In dual projector configurations, each projector is essentially displaying a standard 2D image and the

3D control functionality of the projector is not needed. Refer to the illustrations on the preceding pages

for the general hardware configuration supported. Use either an IR emitter to control gating in active

glasses, or a polarizing cell and Z-screen with passive glasses.

2.12.3 3D Instructions

NOTES: 1) Assume a full 2048 x 1080 display and 3D enabled in the Custom: 3D Control menu.

2) 3D stereo sync or “reference signal” is part of input signal, matching the vertical sync.

1. Connect 2 HD-SDI signals from a 3D media server to the projector’s SMPTE cinema ports 292-A

and 292-B. One carries left-eye data, the other right-eye data. Connect to either port; configure the

projector to multiply and interleave the L/R signals properly.

2. Set the frame rate. NOTE: CP2000-M/MR models can support full resolution (2k) 3D.

Both incoming frame rates are likely too slow for flicker-free 3D viewing and need to be increased

within the projector for at least 144Hz output. For example, a typical HD-SDI rate of 24Hz is still

only 48Hz when L/R are combined. In the Channel: 3D Control menu, set the desired Frame

Rate N:M ratio - or number of frames displayed per number of frames for complete data. For

example, a 4:2 setting creates 4 frames from 2 inputs (=96Hz), or a setting of 6:2 creates 6 frames

from 2 inputs (=144Hz). The resulting frame rate possible in the projector - with 24Hz full screen

incoming signals, use a maximum factor of 5:2. NOTE: Frame rates for lower resolution displays

can be increased by a larger ratio; 6:2 commonly used for most 3D features.

3. Define the 3D sync input location.

4. Define L/R dominance.

5. Define L/R sync display location.

6. Define sync output. Use 3D Sync Polarity to set whether the 3D sync signal output here matches

the L/R order of the incoming frames, or whether it is to be inverted - i.e., reversed (R/L). Then set

the Display GPI according to which of the projector’s GPIO outputs is currently wired to the

emitter or polarizer.

7. Connect GPIO (output). From the projector’s GPIO port, connect the 3D stereo sync cable to the

3D controlling device, such as an emitter or polarizer. NOTE: RealD 3D sync cable recommended.

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Christie CP2000-M Guide d'installation Page 28