Sharp XG-E3500U Guía de instalación descargar pdf (Pagina 4)

Smart Panel Projector Driver Application Note

Sharp XG-E3500U

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III. TROUBLESHOOTING

Additional tips can be found in the

Smart Panel Configuration and Installation Guide.

The Panel controls the projector, but cannot turn it on or off; or, the Panel turns the projector on and off,

but does not control it.

The Sharp is controlled using both Wired Remote/IR and RS-232. Power (and most hidden functions)

are controlled via Wired Remote/IR, while input selection and volume are controlled via RS-232. If

only a subset of functionality appears to be working, verify that both types of control wiring are

correctly wired.

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 polling indicates that the projector is off. Check to make sure the

RS-232 connection is correctly wired (it is extremely unlikely other control would work, and power

polling not).

When I try to turn the projector on, the warming indicator (red LED) blink.

The projector is in the default configured

lockout state

, 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

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

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 both IR/Wired Remote and RS-232. We recommend Wired Remote

control as it is generally more robust. However, use of the Wired Remote will prevent use of the

Sharp’s remote control (a discussion of the relative advantages of IR vs. Wired Remote can be found

in the

Smart Panel Configuration and Installation Guide).

3. The lockout timer specifies the amount of time allowed between sending

POWER OFF

and

POWER

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-E3500U Guía de instalación Pagina 4

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