Sharp Xg Nv7xu Projector Quickstart Guide

							Quick Reference for Notevision 7
A. Connecting the Power Cord
Plug the supplied power cord into the AC socket on the back of the
projector.
Digital Multimedia Projector
4Press POWER ON.
B. Connecting to a Computer Using the
Standard 15-pin (VGA) Input
1Connect one end of the supplied computer cable to the INPUT
1 port on the projector.
2Connect the other end to the Monitor output port on the
computer. Secure the connectors by tightening the thumb
screws.
3To use the built-in audio system, connect one end of the
supplied computer audio cable to the AUDIO INPUT terminal
on the projector.
Connect the other end to the Audio output terminal on the
computer.
C. Connecting to a Computer Using the
Direct Digital Input (PanelLinkª)
1Connect one end of the digital cable to the INPUT 2 port on the
projector.
2Connect the other end to the corresponding terminal on a
computer.
3To use the built-in audio system, connect one end of the
supplied computer audio cable to AUDIO INPUT terminal on
the projector.
Connect the other end to the Audio output terminal on the
computer.
Computer To digital output terminal
To audio output terminal Computer audio cable (3.5 mm
stereo minijack cable) Digital cable (sold separately)
POWER ON
button
5Turn on the computer.
6Press AUTO SYNC to adjust the image.
AUTO SYNC
button
D. Connecting the Remote Mouse Receiver
IBM or IBM compatible PC
1Connect one end of the supplied mouse control cable to the
corresponding terminal on the PC.
2Connect the other end to the remote mouse receiver.
Macintosh
1Connect the mouse control serial cable to the remote mouse
receiver.
2Connect the mouse control cable for Mac to the Mac ADB
port on the Mac.
3Connect the other end of the mouse control cable for Mac to
the mouse control serial cable.
¥ Make sure that your computer is turned off while making any mouse control
cable connections.
¥ When using the wireless mouse with an IBM or IBM compatible PC, you
can use either a PS/2 or serial cable connection. (See diagram below.)
¥ Use the supplied mouse control cable for Mac when using the remote
mouse receiver with a Macintosh computer.
Mouse control
serial cable Mouse control cable for IBM PS/2Use this terminal to connect the
supplied mouse control cable
to the remote mouse receiver.
Remote mouse receiver
Mouse control
cable for Mac
XG-NV7XU/QR (E)99.11.8, 2:07 PM 1 
						

							Printed in Japan
TINS-6787CEZZ
9P08-JWG
VIDEO Mode
E. Connecting to a Video Source (VCR,
Laser Disc Player, DTV Decoder or DVD
Player) Using the Standard Video Input
1Connect the yellow RCA connectors to the corresponding yellow
VIDEO INPUT terminal on the projector and the Video output
terminal on the video source.
2To use the built-in audio system, connect the red and white
RCA connectors to the corresponding red and white AUDIO
INPUT terminals on the projector and the Audio output terminals
on the video source.
VCR
or
Laser disc player
To video output terminal To S-video output terminal
Video cable (sold separately)
To audio output terminals Audio cable
(sold separately) S-video cable (sold separately)
Use this terminal when the audio-
visual equipment to be
connected has an S-VIDEO
output terminal.
INPUT 2 ModeINPUT 1 Mode
F. Selecting and Checking the Input Mode
1Press INPUT to select the desired input mode.
INPUT button
2Press INPUT again to change the mode.
EXAMPLE
H. Digital Keystone Correction
1Press KEYSTONE.
2Press ¶ to compress the upper part of the image.
Press Ä to compress the lower part of the image.
3Press ENTER to display a test pattern.
4Press ENTER to clear the test pattern.
5To exit, press KEYSTONE.
6To reset, press UNDO.
1, 5
3, 4 2
6
g
4Test Pattern3
¥ Straight lines or the edges of the displayed image may become jagged.
I. Turning the Projector Power off
1Press POWER OFF.
Power OFF
button
2Press POWER OFF again while the message is displayed.
G. Adjusting the Lens
1Rotate the zoom ring. The image can be adjusted to the desired
size within the zoom range.
2Rotate the focus ring until the image on the screen becomes
clear.
1
2
PDF operation manuals in several languages are included in the CD-ROM. See ÒHow to Access the PDF Operation
ManualsÓ in the operation manual of the projector for more details.
XG-NV7XU/QR (E)99.11.8, 2:07 PM 2 
						

							2
SAFETY INFORMATION
1. Parts that have special safety characteristics are identified by the         symbol on
schematics or by special notes in the part lists. Use only replacement parts that
have critical characteristics recommended by the manufacturer.
2. Make leakage current or resistance measurements to determine that exposed
parts are acceptably insulated from the supply circuit before returning the unit
to the customer. Use the following checks to perform these measurements:
A. Leakage Current Hot Check: With the unit completely assembled, plug the AC line cord
directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a
leakage current tester or a metering system that complies with American National Standards
Institute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL)
1492 (71). With the units AC switch first in the ON position and then in the OFF position,
measure from a known earth ground (metal water pipe, conduit, etc.) to all exposed metal
parts of the unit (antennas, handle bracket, metal cabinet, screw-heads, metallic overlays,
control shafts, etc.), especially any exposed metal parts that offer an electrical return path to
the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the units power
cord plug in the outlet and repeat the test. ANY MEASUREMENTS NOT WITHIN THE LIMITS
SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMI-
NATED BEFORE RETURNING THE UNIT TO THE CUSTOMER.
B. Insulation Resistance Test Cold Check: (1) Unplug the power supply and connect a
jumper wire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3)
Measure the resistance with an ohmmeter between the jumpered AC plug and each exposed
metallic cabinet part on the unit. When the exposed metallic part has a return path to the
chassis, the reading should be between 1 and 5.2M W. When there is no return path to the
chassis, the reading must be infinite. If it is not within the limits specified, there is the possibil-
ity of a shock hazard, and the unit must be repaired and rechecked before it is returned to the
customer.
ELECTROSTATIC DISCHARGE SENSITIVE (ESDS)
DEVICE HANDLING
This unit contains ESDS devices. We recommend the following precautions when repairing,
replacing or transporting ESDS devices:
¥ Perform work at an electrically grounded work station.
¥ Wear wrist straps that connect to the station or heel straps that connect to conductive floor
mats.
¥ Avoid touching the leads or contacts of ESDS devices or PC boards even if properly
grounded. Handle boards by the edges only.
¥ Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert
unprotected devices into materials such as plastic, polystyrene foam, clear plastic bags,
bubble wrap or plastic trays. 
						

							3
SPECIFICATIONS
General
Dimensions:2.5H x 15W x 9D (6 x 38 x 23cm)
Weight:3.7lb. (1.7kg)
Finish:Plastic, in-mold brushed aluminum finish
Power Input:Detachable power pack, 12VAC compatible with
each countrys power requirements
Serial Data Output:2-3.5mm stereo jacks, Tip: Serial data output,
Ring: +12Vdc turn on output.
Power:14 Watts max.
Input Impedance (@ 1kHz, max. volume):  5kW @ aux./video input, 100kW @ tape input
Output Impedance:600W @ Speaker A, B output, 1kW @ tape output
Distortion:£ 0.02% THD @ 1kHz, 2Vrms
S/N Ratio:³ 105dB (A-weighted, max. volume)
Headphone Output (32W):45mW (max. output)
Channel Separation:70dB
Muting (A, B outputs):-80dB
Max. Output Level:5Vrms (@ 1kHz, THD < .12%)
FM Electrical
Antenna Input:US: 75W F connector, Europe: 75W PAL
Usable Sensitivity:US: 12dBf, Europe: 17dBf
50dB quieting sensitivity:Mono: US: 15dBf, Europe: 20dBf
Stereo: US: 37dBf, Europe: 42dBf
S/N ratio (65dBf input):Mono: 75dB, Stereo: 70dB
THD (65dBf, 1kHz input):Mono: £ 0.2%, Stereo: £ 0.3%
Capture Ratio:1.5dB
AM Rejection (45 dBf input):60dB
Alternate Channel Selectivity (45 dBf input):US: 70dB, Europe: 75dB
Image Rejection:70dB
Frequency Response:± 0.5dB (30Hz-15kHz)
Stereo Channel Separation:40dB @ 1kHz 
						

							4
AM Electrical
CD Electrical
(Continued)
SPECIFICATIONS
Antenna Input:Binding posts
Usable Sensitivity:55dBuV/m (IHF standard test loop antenna)
Alternate Channel Selectivity:60dB
Adjacent Channel Selectivity:45dB
Image Rejection Ratio:40dB
S/N Ratio:50dB (@ 100dBuV/m)
THD:£ 1.0% (@ 100dBuV/m)
Frequency Response (@ 100dBuV/m):100Hz: -8dB
3kHz: -8dB
D/A Process:8x over sampling dual 16-bit D/A conversion
Maximum Output Level:4V
THD+N:0.05% (@ 1kHz, 0dB)
S/N Ratio:100dB (A-weighted)
Channel Separation:³ 50dB (@ 1kHz)
Frequency Response:± 0.5dB (20Hz-20kHz)
Dynamic Range:³ 90dB
Defect Tracking (Void):1.5mm (Pierre Verany Test Disc #2)
Defect Tracking (Black Dot):1mm (ABEX Test Disc TCD-725R)
Defect Tracking (Scratch):1.6mm (ABEX Test Disc TCD-721R)
Defect Tracking (Fingerprint):75um (ABEX Test Disc TCD-725R)
Defect Tracking (Warped disc):1mm (ABEX Test Disc TCD-732RA)
Defect Tracking (Eccentric Disc):280um (ABEX Test Disc TCD-741R) 
						

							5 Figure 1. CD5 Block Diagram Sheet 1 of 2 
						

							6
Figure 2. CD5 Block Diagram Sheet 2 of 2 
						

							7
CD TERMS
Basic Terms
Access: See track access.
Access Time: The length of time required to change tracks.
CD Mechanism: The mechanical assembly of components used to read information off of the
CD. It contains the optical pickup, sled assembly, disc motor, sled motor, and spindle.
Disc Motor: The motor which spins the disc.
Focus Actuator: The magnet and coil assembly that moves the optical pickupÕs lens up and
down.
Laser: A semiconductor light source similar to an LED that is used to read the data off of a CD.
When the laser is turned on it can be seen as a red glow inside the lens.
Laser Pickup: The portion of the CD mechanism that contains the laser diode, lens, focus and
tracking actuators, and photodetector diodes.
Mechanism: see CD Mechanism.
Optical Pickup: See Laser Pickup.
Playability: The extent to which a player can successfully play less than perfect discs. Play-
ability is measured with special test discs (playability discs) that contain certain types of de-
fects and problems.
Playability Disc: A disc which contains a calibrated defect or problem. These include eccen-
tricity, warp, scratch, void, black dot, and fingerprints.
Parking: When the sled is moved to the innermost position on the disc. This is done before (if
necessary) and after playing a disc.
Sled: The portion of the CD mechanism that moves inside to outside to position the optical
pickup near the desired track.
Sled Motor: The motor which moves the sled back and forth.
Spindle: The hub that the disc sits on.
Track Access: The process of moving from one track on a disc to a different track.
Tracking Actuator: The magnet and coil assembly that moves the optical pickupÕs lens inside
and out.
Playability Terms
Dropout: A momentary loss of the audio signal, usually caused by a large scratch or other
optical defect. 
						

							8
CD TERMS
Eccentricity: The extent to which the hole in the middle of the disc is not located in the geo-
metric center. In other words, the amount that the disc moves in and out as it rotates. Eccen-
tricity is measured as the distance between the center of the hole and the center of the disc (as
determined by the spiral tracks).
Mistracking: When a CD player fails to play the disc in a continuous manner. This may be
caused by a large enough optical defect (scratch, etc.) or by vibration.
Optical Defect: A defect on the surface of the disc which adversely affects the reading of
information by the laser pickup. There are four basic types of optical defects: voids, black dots,
fingerprints, and scratches.
Skipping: When a CD mistracks backwards and gets caught in an Òendless loopÓ. This is
usually caused by a large scratch or other optical defect.
Warp: The extent to which the surface of the disc is not parallel to the seating plane of the disc
(at the center). In other words, the amount that the disc wobbles up and down. Warp is mea-
sured as the vertical deviation between the seating plane and the particular point on the disc.
Alignment Terms
CD Alignment: The process of adjusting a CD player for optimum performance, particularly
with respect to its playability.
Free Run Frequency: The VCO frequency in the absence of any signal from the disc. Accu-
rate frequency adjustment is required for the player to be able to read data off the disc. VCO
misalignment results in poor track access and longer access times.
Tracking Offset: The DC offset voltage present at the output of the tracking servo in the
absence of any input signal. For best results, the offset should be adjusted near 0 to keep the
laser positioned in the center of the track. Negative offset causes the laser to be positioned
towards the inside of the track. Misalignment of this parameter can cause the player to skip or
mistrack when playing a dirty or Òblack dotÓ disc, especially if the disc is also eccentric.
Scratches and voids may also cause the problem.
Focus Offset: The DC offset voltage present at the output of the focus servo in the absence of
any input signal. For best results, the offset should be adjusted near 0 to keep the laser exactly
in focus. Misalignment of this parameter usually causes dropouts when playing a dirty or Òblack
dotÓ disc, especially if the disc is also warped. Scratches may also cause problems. Note that
on the CD5, the focus offset is preset and the adjustment pot is not loaded, however, there is a
spot on the PCB for it.
E-F Balance: The DC offset that results from driving both the E and the F elements of the
photodetector with equal signals. For best results, the offset should be adjusted near 0 to keep
the laser positioned in the center of the track. As with track offset, negative offset causes the
laser to be positioned towards the inside of the track. Misalignment of this parameter can
cause any number of problems including: 1. Poor or slow track access even when playing a
good disc, and 2. Skipping or mistracking when playing a scratched or void disc, especially if
the disc is also eccentric. 
						

							9
CD TERMS
Tracking Gain: The overall loop gain of the tracking servo. This controls how tightly the laser
is held in the center of the track. If the gain is too low, the player will have trouble with vibration
and eccentric discs, especially during track access. If the gain is too high the player will have
skips or mistracking with voids and scratches. Proper alignment is a compromise between
these two performance parameters.
Focus Gain: The overall loop gain of the focus servo. This controls how tightly the laser is held
in focus. If the gain is too low, the player will have trouble with vibration and warped discs,
especially during track access. If the gain is too high the player will have skips or mistracking
with black dots and scratches. Proper alignment is a compromise between these two perfor-
mance parameters.
Technical Terms
RFSM: RF SUM. The amplified A+B+C+D signal from the laser pickup.
Eye Pattern: The pattern displayed on an oscilloscope when monitoring the RFSM test point.
Jitter: The extent to which the zero crossings of the eye pattern occur at other than their ideal
times.
Focusing: Before a disc can be played, the player must focus the CD mechanism by changing
the distance between the lens and the surface of the disc. This must occur before the disc can
start rotating. If the player fails to achieve focus, it will retry. This occurs four times in the CD5
before it Ògives upÓ and indicates Òno discÓ by lighting up the disc icon in the display.
TOC: Table Of Contents. The innermost area on the disc where track and time information is
stored. When a new disc is inserted into a player (i.e. when the door switch is opened), it must
read the TOC before the first track can be played.
CIRC: Cross Interleave Reed-Solomon Coding: The error detection and correction scheme
used on CDs to provide immunity to small scratches, etc.
CLV: Constant Linear Velocity. CD players rotate the disc at a constant linear velocity of 1.25
M/S. The  angular velocity changes from about 500 RPM down to 200 RPM as the disc plays
from beginning (inside) to end (outside).
EFM: Eight-to-Fourteen-Modulation. The format in which the digital data is recorded on the
CD.
Photo Diode: The receiving element that translates the modulated light beam into electrical
signals.
Subcode Q data: The track and time information read off the CD.
Three Beam System: The most common system for providing focus and tracking error signals
for the respective servos. A three beam system uses a six element photo diode array, with the
elements designated A through F. The A, B, C, and D elements are located in the center and
read the information as well as supply the focus error signal. The E and F elements are located
on either side and provide the tracking error signal.