Troubleshooting; Technical Notes - Sharp XG-PH50X Quick Start Reference Sheet

SmartPanel Projector Driver Application Note
III. TROUBLESHOOTING
Additional tips can be found in the SmartPanel Configuration and Installation Guide.
The Panel is not controlling the projector at all, and it turns off after about one minute of use.
Check to make sure the RS-232 connection is correctly wired – this is the single most common cause
of control failure in SmartPanel installations. If the SmartPanel does not receive projector feedback
that the projector is on, it will shut itself off using the RS-232 power polling feature (see note 1).
Verify that the XG-PH50X is configured with the following settings in its onscreen menus:
•
Configure to BAUD 9600 (default) in the second OPTIONS menu
•
Configure to LAN/RS-232C ENABLED in the second OPTIONS menu
In addition, this projector may be vulnerable to periodic control failures for unknown reasons – please
see Section V. Special Control Note below for more information.
The Panel does not do anything at all.
When power is applied to the Panel it should run through a brief power on self-test, during which all of
the Panel lights will turn on and off in sequence. If you do not see this self-test, make sure power is
connected correctly and that polarity is correct.
The Panel has only partial control over the Sharp.
Verify that both RS-232 and the wired remote are correctly wired. The most common error is reversal
of RX and TX for RS232, and polarity reversal of the wired remote. Note that the Sharp is controlled
using both Wired Remote and RS-232. If a subset of functionality appears to be working, verify that
both types of control wiring are correctly wired.
IV. TECHNICAL NOTES
1. By default, projector power is verified by polling every few seconds via the RS-232 port. Power
polling can be suspended by depressing and holding the On key; polling will be restored when the
key is released. Should the Sharp power off, the Panel will usually detect this condition and power
off within twenty seconds. Should the Sharp power on, the Panel will usually detecting this condition
and power on within ten seconds.
2. The Sharp is controlled via RS-232 and wired remote. The Sharp can alternately be controlled with
RS-232 and IR emitter. A discussion of the advantages of Wired Remote versus IR can be found in
the SmartPanel Configuration and Installation Guide.
3. The lockout timer specifies the amount of time allowed between sending POWER OFF and POWER
ON to the projector (the delay allows the projector bulb to cool before re-powering). This delay can
be configured using the Configuration Utility; however, adjusting the lockout timer delay is
strongly discouraged as rapid re-powering causes undue wear on the projector's bulb. Also, the
Sharp will not allow power to be restored before a minimum delay has expired. Therefore, disabling
the lockout delay will cause potentially confusing Panel behavior.
© 2005 SP Controls Inc. 601 Minnesota Suite 115 San Francisco, CA 94107
Sharp XG-PH50X
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