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Smart Panel Projector Driver Application Note
III. TROUBLESHOOTING
Additional tips can be found in the Smart Panel Configuration and Installation Guide.
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 keeps turning itself off even though the projector is on.
The Panel turns itself off when power verification indicates that the projector is off. Check to make
sure the RS-232 connection is correctly wired. If a third party power current sensor is being used,
make sure correctly wired and calibrated. The most common cause for power polling failure when
other control works, is that the RX line is incorrectly wired or soldered. Also, see the next issue
The Panel comes on, but cannot control the projector (and soon turns itself off!).
Make sure the Viewsonic is correctly configured for serial communications at 9600 8N1. If the
projector is set to any other control rate and data format, control will fail regardless of whether wiring
is correct. For information on how to verify and set the projector's serial communications settings, see
the SPECIAL CONTROL NOTE in the control wiring section of this document.
The projector keeps turning itself off, though the Panel is on (then the Panel then shuts itself off).
The Viewsonic may be configured to shut itself off in the absence of any valid input signal. Refer to
the Viewsonic manual for instructions on how to set and disable this behavior with onscreen menus.
Alternately, ensure that Panel is not configured with an unexpected value for Inactivity Shutdown.
The onscreen menus won't appear!.
Note that the Viewsonic will not display on screen menus if there is not a valid source signal on the
currently selected input. This is a Viewsonic behavior that the Panel cannot control. During testing it
was also noticed that occasionally when the Panel reset after download, onscreen menus would not
appear. Hard power cycling the projector seemed to remedy this behavior.
When I try to turn the projector on, the warming indicator (red LED) blink.
The projector is in lockout mode, and the Panel is waiting for its internal lockout timer to expire; this
feature protects the projector's bulb. Be sure to let your client know about this behavior.
IV. TECHNICAL NOTES
By default, projector power is verified by polling every few seconds via the RS-232 port. Power
1.
polling can be suspended by depressing and holding the On key; polling will be restored when the
key is released. Should the Viewsonic power off, the Panel will usually detect this condition and
power off within thirty seconds. Should the Viewsonic power on, the Panel will usually detecting this
condition and power on within fifteen seconds.
This Viewsonic is currently controlled via a combination of Infrared and RS-232 only. Wired Remote
2.
is not an option as the Viewsonic does not have a Wired Remote port.
The lockout timer specifies the amount of time allowed between sending POWER OFF and POWER
3.
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
Viewsonic will not allow power to be restored before a minimum delay has expired. Therefore,
disabling the lockout delay will cause potentially confusing Panel behavior.
© 2003 SP Controls Inc. 601 Minnesota Suite 115, San Francisco, CA 94107
Viewsonic PJ1060
help@spcontrols.com
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