System information

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SECTION III

OPERATION

GENERAL INFORMATION

Chapter 1

1.1 FACTORY PRESET MODE OF OPERATION

The

Aquastar

600 comes

from the factory preset in the

following manner:

1.1.1 PICTURE SIZE AND THROW DISTANCE

The

Aquastar

600 leaves the factory properly set-up for an

on-axis

60"

80"

image with a throw distance of

10'

from the

screen to the front of the green lens.

The

Aquastar

600 is

capable of projecting an image from 4 to 12 feet wide with the

high resolution lenses. Optional lenses can give the capability

for a picture width of up to 25 feet.

If an image size of other

than

60"

X 80" is desired,

it will be necessary to change the

throw distance,

change the lateral lens adjustments, and refocus

the lenses.

These adjustments

should be performed by the

qualified technician doing the projector installation.

The projector comes preset for FRONT PROJECTION but has the

capability of operating in either front or rear screen modes. To

reverse the direction of the horizontal sweep, a sweep reversal

plug (J-21) is provided on the deflection board.

When the sweep

is reversed switch S-501 must be changed to the "ON" position for

the remote control to center properly. The magnetic and elec-

tronic effects of sweep reversal will require some mechanical and

electronic

realignments so this procedure should be performed

only by a qualified technician.

1.1.2

NTSC/RGB

OPERATION

The projector comes preset for RGB operation on a 60" X

80"

screen.

NTSC operation of any projector does not use the maximum

viewing area possible within the transmission facility and the

Aquastar

600 is no exception. The sides and the top of the

raster are blanked and this portion of the picture is not seen by

the viewer.

However,

in RGB operation,

the maximum

viewing

area

is all used.

There will be a slight reduction in picture size

for NTSC operation.

1.1.3 ON/OFF AXIS PROJECTION

The projector is preset for ON AXIS PROJECTION.

This means

that the projector is mounted perpendicular to the center of the

screen.

Projection at any angle other than perpendicular will

introduce keystone distortion

into the projected image.

The

Aquastar

600 can correct

for keystone distortion at projection

angles of up to 15 degrees,

but

qualified technician should

make this correction adjustment.

-38-

Summary of content (17 pages)

PAGE 1
SECTION III - OPERATION GENERAL INFORMATION Chapter 1 1.1 FACTORY PRESET MODE OF OPERATION The Aquastar 600 comes following manner: from the factory preset in the 1.1.1 PICTURE SIZE AND THROW DISTANCE The Aquastar 600 leaves the factory properly set-up for an on-axis 60" X 80" image with a throw distance of 10' 2" from the screen to the front of the green lens. The Aquastar 600 is capable of projecting an image from 4 to 12 feet wide with the high resolution lenses.
PAGE 2
1.1.4 HORIZONTAL AND VERTICAL HOLD PRESET CHANNELS The NTSC channel and each of the eight RGB horizontal and vertical hold preset channels are set at the factory for 15,750Hz for horizontal and 60Hz for vertical. To change the preset hold rates, refer to Chapter 3 of Section I.
PAGE 3
Chapter 2 SYSTEM INFORMATION 2.1 SYSTEM OPERATION The following section contains simple step by step instructions for turning the projector ON and OFF and aligning and adjusting the video image. 2.1.1 SYSTEM TURN ON Verify that the power cord to the projection unit is firmly connected to an active AC outlet. NOTE: All Aquastar 600's are shipped from the factory configured for 115V 60Hz operation unless special ordered for 220v 50Hz operation.
PAGE 4
C. Upon completion of the countdown procedure, the projector In the event of a malfunction, error will be ready for use. codes will be displayed on the projector LED's by the error diagnostic circuits. D. Allow the projector to warm up for about 15 minutes before proceding with the set-up adjustments. 2.1.2 SYSTEM TURN OFF To turn the projector OFF depress the ON switch on the front panel of the remote control. 2.1.
PAGE 5
In this configuration the Red, Green, and Blue inputs are connected as before and the horizontal sync is connected to the sync BNC connector and the vertical sync is connected to the vertical drive BNC connector. The Aquastar 600 will automatically detect which configuration is used and adapt to that input. input NOTE DO NOT USE A SYNC INPUT CABLE IF THERE IS SYNC ON THE GREEN SIGNAL. THIS CONFIGURATION WILL CAUSE A WASHED-OUT IMAGE. 2.
PAGE 6
2.4 CORRECTING HORIZONTAL HOLD Occasionally after changing from one video source to another the image will become distorted in the horizontal plane or drop To correct this condition perform the following out of sync. procedure: 1. Insure that you have selected the desired horizontal and (refer to Chapter 3 of Section 1 to select a given vertical and horizontal hold preset channel) vertical hold preset channel. 2.
PAGE 7
Chapter 3 SYSTEM TROUBLESHOOTING This chapter of the manual describes the steps for correcting difficulties that may be encountered when using this projection system. If you should encounter a problem, locate it in the text below and follow the steps outlined for its correction. If you are still unable to correct the problem, troubleshoot the projector using the theory of operation section and the schematic diagrams. 3.1 SYSTEM WILL NOT OPERATE 1..
PAGE 8
3. Depress the ON button on the remote control to turn the projector on. 4. If the image still does not appear, follow the procedures outlined under "System will not operate".
PAGE 9
Chapter 4 CHANGING FROM FACTORY PRESET CONFIGURATION 4.1 FACTORY PRESET CONFIGURATION The projector comes from the factory preset for an on-axis, 60" by 80" image (in RGB) using front projection. The Aquastar 600 is capable of projecting images from 4 to 25 feet in width, front or rear screen projection, floor, table, or ceiling mounting, etc. This chapter of the manual will try to explain the steps necessary to change from one configuration to another. 4.
PAGE 10
FIG I t AGUAS'PAR 9’ for moved t o image befor e acree n BIZC caangr (Screen 1nc; cCcplctcd 4 x 6’ h e r e i rt h e t3OSSdAIit.) projector away from the screen, the green image seems to become This larger while the Red and Blue images move laterally. condition is called parallax and can be corrected by moving the Red and Blue lenses laterally after image size and throw distance The lateral lens adjustment procedure is has been decided. provide idn Paragraph 4.3.2 of this section of the manual. 4.3.
PAGE 11
ASTIGMATISH CORRECTION R!NGS RASTER CENTERING RINGS FIG.
PAGE 12
With the raster centered on the face of the CRT's, as the projector is moved forward or backward the three projected images will diverge. When this happens it is necessary to realign the If you are unable to images with the lateral lens adjustments. properly overlay the images upon each other it will be necessary to perform an alignment. Refer to Section V for the mechanical and electronic alignment procedures. 4.3.
PAGE 13
When the horizontal sweep is reversed a number of things occur. Deflection currents and magnetic fields are reversed so that the projected image is correct. The raster centering should not move when the sweep is reversed. If the sweep does move it will be necessary to adjust R-131. The procedure for adjusting R-131 can be found in Section V. When the sweep is reversed it may be necessary to register the projector. The procedure for registering the projector can be found in Section V. 4.3.
PAGE 14
With OFF-AXIS projection the mounting, or off-AXIS projection. raster will contain a measure of keystone distortion. Increasing the degree of OFF-AXIS projection either above or below the On-Axis line increases the amount of this keystone distortion. FIGURE Sl: El The Aquastar 600 provides 15 degrees of keystone correction. r 600 no higher than the top of the Generally, keep the Aquastar screen and no lower than the bottom of the screen, then 15 degrees of keystone correction is sufficient.
PAGE 15
BEFORE THE FINAL ELECTRONIC ADJUSTMENTS ARE MADE YOU MUST INSURE THAT THE REGISTRATION SWITCH IS - OFF - AND: 1. The rasters are centered in all CRT's. 2. Each of the images are focused. 3. The centers of all three crosshairs are superimposed on one another. This is accomplished with the raster centering procedure and the Lateral Lens Adjustment. 4. The differences in the yokes both horizontally (horizontal and and vertically have been matched. vertical size) 5.
PAGE 16
3. 4. 5. Remove the two lower rear cover brackets. Remove the two upper back panel retaining screws. Pull down the back panel, exposing the video PCB. 4.3.7. RASTER CENTERING Figure 6 illustrates the effect of decreasing the blanking time for RGB operation. The image on the CRT is wider, taller and off--center compared to a typical NTSC raster. WARNING Overscanning the CRT's can cause severe damage to the CRT's and the high voltage power supply. --_--- FIGURE 6 Section V, paragraph 2.
PAGE 17
4.3.9. RGB SYSTEM OPERATION The NTSC and RGB operation of the Aquastar 600 is identical except for the items discussed above. All procedures described in Section V with the exception of raster size and centering changes, apply also to NTSC operation. On the remote control the BRITEness control is the only picture control useable in the RGB mode.