Sharp SL-550 Guia de Resolução de Problemas descarregar pdf (Página 20)

Set-up/Operation • A-20 •

position. You should see the light come on in the top center of the projection head.

After about one minute the lamp will be fully warmed up and you will be able to con-

trol the brightness by turning the knob labeled “Projection Brightness” in a clockwise

direction.

Side Lamp Control

The four gooseneck side lamps are controlled by means of four dimmer knobs located

at the extreme righthand side of the projector control panel (see photo on right). A

toggle switch allows you to select how these dimmer knobs will operate the lamps.

When the toggle switch is up, (“Independent Side Lamp Control”), the four dimmer

knobs will work independently of each other. This means that turning the dimmer

labeled “Left Rear” will only control the left rear side lamp. To brighten the lamp, turn

the dimmer in a clockwise direction and to dim, turn it in a counterclockwise direc-

tion. When the toggle switch is down, (“Dual Side Lamp Control”), the right side dim-

mers will control both of the front or rear side lamps together. In other words, when

the toggle switch is down, the right rear dimmer (upper right knob) will control both

rear side lamps and the right front dimmer (lower right knob) will control both of the

front side lamps. The left dimmers will not be useable. By having the side lamp switch

down, the operator can light all four side lamps by using only two dimmers.

In addition to being able to control the brightness of the side lamps, you can adjust

the direction the light shines by bending the goosenecks. When moving the lamps, it

is important to go slowly and make sure that you don’t twist them, only bend them in

one direction at a time. You can also adjust the direction of the side lamps by turning

the plastic cowlings that cover the bulbs at the top of the gooseneck. While it is not

recommended, it is important to note that the goosenecks that hold the side lamp

bulbs can be removed from the projector body. Each gooseneck is attached with

a three-pronged connector and the entire lamp assembly can come loose or even

become disconnected if the gooseneck is twisted excessively.

Adjusting the Date and Time

You can set the STARLAB projector to view the sky for any hour of darkness for any

day of the year. Along the front of the projector is a xed hour bar showing viewing

times from 7:00 PM to 5:00 AM. The 12:00 is midnight. Below the hour bar on the

edge of the clear plastic cylinder platform are the months of the year.

Look at the accompanying graphic. Dates are approximated and can be set by turn-

ing the platform so that the relative day of the month is aligned under the selected

viewing hour. For example, if you want to view the sky at 10:00 at night on Novem-

ber 1st, rotate the platform so that the tick mark between October and November

is slightly to the left of the 10 on the hour bar. The projector is now set for 10:00

PM standard time for November 1

. Please note that in this position the projector is

also set to show you the night sky at 9:00 PM on November 18

and 8:00 PM on

December 4

. Remember you can view the same stars in the same position in the sky

at different times for different days of the year.

For daylight savings time, subtract one hour from the time you set the projector. For

example, to view 10:00 PM on June 7

, rotate the plate so that the rst half of June is

directly under the 9 on the hour bar.

Note

When adjusting the time, always rotate the plastic cylinder platform plate

directly. Turning the cylinder may cause damage.

The projector in this photo is set for Nov. 1

at 10:00 PM.

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