When the system is first installed or verification of system operation is desired, the distribution
module is supplied with a 60 Hertz frame sync generator built into the module.It is activated by
pushing the on/off switch for "Setup Frame Sync" to the "on" position.If the sync generator is
operating and a valid (36 to 80 Hertz) external fra me sync signal is received from the projector or
othersource,operationofthe testgeneratorwillceaseandtheemitterarrayswillbesynchronized
totheexternalsignal.
The long range emitter array includes a laser pointer to assist in
aiming the emitter array at the
screen.Thelaserpointerisactivatedbyaswitchonthedistributionmodulelabeled"LaserPointer",
but can only be activated when the "Setup Frame Sync" generator is operating.This prevents the
laserdiodefrombeingturnedonwhilea3Dvideoisbeingshown.
Fordiagnosticpurposes,thefollowingindicatorlightsareprovided:
1. AgreenpowerLEDindicatingthatthemodulehaspower.
2. AgreensyncLEDpositionedovertheinputconnectorindicatingthatavalid(36to80Hertz)
syncsignalisbeingreceived.
3. A flashing yellow LED positioned near
the "Setup Frame Sync" label indicating that the test
generatorisactive.
4. AgreenandredLEDarepositionedovereachofthefouroutputconnectors.ThegreenLED
indicatesthatanIRarrayisconnectedtotheoutputandisreceivingpower,andaframesync
inputsignal is
transmittingIR.The redLEDindicates thatan arrayis connected andshould
be emitting IR radiation, but is not.A red LED indicates a fault condition that requires
attention.The green LED is designed to provide the projection personnel assurance that
everything is hooked up and operating normally or
will work normally when an input sync
signalisreceived.Should theoperator wishto completely testthe system, hecan activate
thesyncgeneratorbyturning"ON"the"SetupFrameSync"feature.ThegreenLEDwiththe
absenceof theredLEDwill nowindicatethat thesystemis working
and emittingIR pulses.
Alternatively,hecanputona pairofglassesandlookthroughtheprojectionwindow.Inthe
absenceoftheIRsyncsignal,theglasseswillbeinaclearstate(bothlensesclear–atleastas
clear as they get‐100% of the time).
In the presence of an IR sync signal, the lenses will
alternatebetweentheopaqueandclearstateinsynchronizationwiththeIRsignal.Theywill
alternatetooquicklytohavetheflickerperceived,buttheeffectivetransmissionwill dropby
50%.Thisisdetectablebytheviewer,butnotobjectionable
soitisasuitabletestcondition
justbeforethemovieisstartedeveninthepresenceofanaudience,ifneeded.
To Previous Page
Loading...
