Sharp XG-MB70X Specifications download pdf (Page 5)

SmartPanel Projector Driver Application Note

Sharp XG-MB70X

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III. TROUBLESHOOTING

Additional tips can be found in the SmartPanel Configuration and Installation Guide.

The Panel does not power on 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 does not control the projector at all.

The most frequent cause of control failure is incorrect wiring. Verify that RS-232 and IR are both

correctly wired. Try swapping RX and TX on the captive screw connectors.

If wiring is correct, verify that the projector settings are set correctly as described in the Special

Control Note in Section II. Control Wiring.

The projector is extremely slow to switch inputs.

The XG-MB70X takes 8-10 seconds to switch inputs by RS-232. This is due to the projector design

and is not subject to control. SP Controls recommends using the much faster IR to control the

projector inputs by selecting the IR input commands during configuration (IR VIDEO instead of

VIDEO, et cetera).

The Panel keeps turning itself off even though the projector is on.

The Panel turns itself off when power status feedback indicates that the projector is off. If a third

party power current sensor is being used, check to make sure that it is correctly wired, and that it is

correctly calibrated according to the manufacturer’s instructions. If not, make sure that the Panel is

configured with None or Power Polling under power status feedback in the Configuration Utility’s

Wiring Options tab.

The Projector keeps turning itself off!

Verify that the MB70X’s Economy Mode is set to OFF as explained in the Special Note in the Control

Wiring section of this document

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 Infrared/Wired Remote with this Driver. 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.

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Sharp XG-MB70X Specifications Page 5

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