Installation guide

Smart Panel Projector Driver Application Note

Sharp XG-NV6XU

help@spcontrols.com

V. SPECIAL NOTE: SHARP FIRMWARE PROBLEM

Nature of the Problem

Several installations of the Sharp XG-NV6XU using the original releases of this Driver have reported

sporadic loss of control through the projector’s RS-232 port. This problem occurs infrequently and has not

been correlated with any specific conditions.

It is currently believed that under unknown conditions the Sharp shuts down its RS-232 port. The specific

cases under which the Sharp ceases to respond are not known despite intense and long-term testing by

SP Controls. We are working with Sharp to get more information.

What to do in an Emergency

In all cases, the field remedy for control failures has been to power cycle the Sharp.

No reconfiguration or power cycling of the Smart Panel has been necessary at any site where the problem

has occurred.

Our Position

At present

this problem is believed to be a Sharp XG-NV6XU firmware problem.

Analysis of this

problem has revealed no Smart Panel malfunction whatsoever

We are currently working with Sharp to learn more about any changes they may have made to the NV

series firmware that may have resulted in this problem.

Advisory and Impact of this Driver

We recommend that

all Sharp XG-NV6XU installations should upgrade or install the Revision C

Driver.

We also recommend wiring RS-232 for all installations with this projector, in anticipation

of a resolution to these issues which will enable RS-232 control to be used.

This revision uses IR/Wired Remote commands for all control. This should be a completely transparent

change to users and installers. However, it is our hope that use of IR/Wired Remote will prevent or avoid

the known control problems.

Projectors updated to Revision C have so far experienced no problems

Please notify SP Controls

technical support at once if any installation exhibits control problems of the type described above with the

Revision C driver.

VI. REVISION HISTORY

1. Revision A (August, 1999)

Original release.

2. Revision B (October, 1999)

Attempted to address intermittent control issues.

3. Revision C (December, 1999)

Changed to IR only to address intermittent control issues.