MaxTech XT7800 User manual

USER'S
MANUAL
Part#MAN061Rev.1.0
XT7800
17 INCH
COLOR MONITOR
Features
•0.28 mm Dot Pitch
•1280 x 1024, Non-Interlaced
•90 Hz Refresh Rate (VGA/SVGA)
•PowerSavingOperation(VESADPMS)
•Non-Glare Screen
•Full Screen Display
•Digital Controls
•RGB Color Match Controls
•Low Radiation

1
Table of Contents
Section 1 General Information......................................................... 2
Section 2 Installation........................................................................ 3
Section 3 Monitor Controls and LEDs ............................................. 4
Section 4 Troubleshooting ............................................................... 6
Appendix A Specifications................................................................... 6
Appendix B Two Year Warranty .......................................................... 7
Appendix C Notices ............................................................................. 8
Appendix D Video Cable Pinout .......................................................... 9
Warning
•Read all these instructions. Save for later use.
•Do not expose this unit to rain or moisture.
•Do not use this unit with an extension cord or any outlet other than a
three prong outlet.
•Do not open the cabinet. There are no user serviceable components
inside. Refer all servicing to a qualified technician.
•Do not cover the vent holes in the case. These are to allow ventilation.
•Do not insert sharp objects into the monitor. They may cause fire
accident or failure.
•Install the equipment near an AC outlet.
•Follow all instructions and warnings on the product.
•Do not place the product on an unstable cart.
•Operate from power source indicated on the label.
•Do not allow anything to rest on the power cord.
•Unplug this product from the wall outlet and refer servicing to qualified
service personnel under the following conditions:
A. When the power cord or plug is damaged or frayed.
B. If liquid has been spilled into the product.
C. If the product has been exposed to rain or water.
D. If the product does not operate normally when the operating
instructions are followed. Adjust only those controls that are
covered by the operating instructions since improper adjustment of
the other controls may result in damage and will often require
extensive work by a qualified technician to restore the product to
normal operation.
E. If the product has been dropped or the cabinet has been damaged.
F. If the product exhibits a distinct change in performance, indicating
a need for service.

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Section 1 - General Information
Congratulations on purchasing the MaxTech 17-inch Color Monitor. The
monitor has one of the finest CRTs available in the industry, providing a
full range of video display resolutions and complies with the MPR-II
standard to reduce electromagnetic emissions.
The monitor has a 0.28 mm dot pitch display with a 75 MHz video
bandwidth. It supports video resolutions ranging from 640 x 350 to 1280
x 1024 (non-interlaced).
The monitor can be used with video cards supporting VGA, SVGA, IBM
8514/A or XGA modes and provides an unlimited palette of colors.
1.1 Precautions When Using the Monitor
When setting up and using your monitor, pay special attention to the
following:
•To eliminate eye fatigue, do not use your monitor against a bright
background or where sunlight or other light sources will shine directly
on the monitor.
•Your monitor should be placed just below eye level for optimum
viewing.
•Allow adequate ventilation around the monitor so that heat from the
monitor can properly dissipate.
•Neitherthemonitoritselfnoranyotherheavyobjectshouldrestonthe
power cord. Damage to a power cord can cause fire or electrical
shock.
•Keep the monitor away from high capacity transformers, electric
motors and other strong magnetic fields.
•Do not use your monitor in a damp, dusty or dirty area.
•Handle the monitor with care when transporting.
•Unplug the monitor during electrical storms.
1.2 Power Saving Modes
The MaxTech monitor supports VESA Display Power Management Sig-
naling (DPMS) SUSPEND and OFF modes. DPMS defines a method for
a computer to signal the monitor to reduce its power consumption when
idle. DPMS features must be supported by both the computer and the
monitor for them to be available. Computer support of DPMS requires the
use of a DPMS compliant video card.
The monitor enters DPMS SUSPEND mode when the computer turns off
the Vertical Synchronization signal. This power-saving mode reduces the
monitor’s power consumption to 25W. While in this mode the first LED in
the Power Indicator (LED A in Figure 3-1) is off. When the synchronization
signal is re-enabled the monitor returns to normal operation.
ThemonitorentersDPMSOFFmodewhenthecomputerturnsoffboththe

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Horizontal and Vertical Synchronization signals. This mode reduces the
monitor’s power consumption to 5W. While in this mode the first and
second LEDs in the Power Indicator (LEDs A and B in Figure 3-1) are off.
When the synchronization signals are re-enabled the monitor returns to
normal operation.
Section 2 - Installation
2.1 Attaching the Base
•Carefully place the monitor on its
side or top.
•Insert the hooks on the swivel
base into the slots in the bottom
of the monitor. Push down and
forward on the base until it snaps
into place.
•Place the display upright in an
appropriate location.
2.2 Connecting the Cable
•Make sure that power to the monitor and the computer is off.
•Connectthecable from the back ofthemonitor to the video connector
COM1 COM2 LPT1 VIDEO
Figure2-1 Connecting theBase
Figure2-2MonitorConnections
VideoCable

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on the computer.
•Connect the supplied power cord into the AC connector on the back
of the monitor and the other end into an AC outlet.
•The monitor is now ready for use.
Section 3 - Monitor Controls and LEDs
1. Power Indicator
LEDsA,B,andC(SeeFigure3-1)indicatetheoperationalstateofthe
monitor.
1.1 LEDs A, B and C are lit: The monitor is in normal operating
mode.
1.2 Only LEDs B and C are lit: The monitor is in the power saving
“SUSPEND”mode. Inthis mode the monitor uses only 25W. The
screen is blank.
1.3 Only LED C is lit: The monitor is in the power saving “OFF”
mode. Themonitoris inminimumpowerstateand usesonly5W.
The screen is blank.
1.4 All LEDs are off: The power switch is off.
2. Degaussing Control
Press to clear color impurity of the display.
3. Power Switch
Press to turn the monitor on. Press again to turn the monitor off.
4. Brightness Control
Adjusts the display brightness.
A
B
C1
12
(on back)
Figure 3-1 Controls and LEDs
24567891011 3

5
5. Contrast Control
Adjusts the display contrast.
6. Memory Recall
Push to reset the display to the default parameters.
7-10 On-Screen Display Controls
The On-Screen Display (Refer to Section 3.1) is controlled using buttons
7 through 10. The On-Screen Display is enabled by pressing any of these
buttons.
7. ADJ+
Pressing this button will increase the value of the highlighted
setting.
8. ADJ-
Pressing this button will decrease the value of the highlighted
setting.
9. Cursor+
Pressing this button highlights the next display parameter to be
adjusted, A through H (See Figure 3-2).
10. Cursor-
Pressing this button highlights the previous display parameter to
be adjusted, A through H (See Figure 3-2).
11. Status/Save
This control has two functions: A) It displays the current Horizon-
tal frequency and Vertical frequency along with the current
screen resolution. B) If the On-Screen Display is active, it saves
any changes made and exits the On-Screen Display.
12. Rotation Control (rear of unit)
Adjusts the amount the display area will tilt.
3.1 On-Screen Display
A. Horizontal-Size
Adjusts the display width. The ADJ+ button increases the width.
The ADJ- button decreases the width.
B. Vertical-Size
Adjusts the display height. The ADJ+ button increases the
height. The ADJ- button decreases the height.
BACDE
HGF
Figure3-2On-ScreenDisplayOptions

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C. Horizontal-Position
Adjusts the horizontal position. The ADJ+ button moves the
displaytothe right.TheADJ-button movesthedisplaytothe left.
D. Vertical-Position
Adjusts the vertical position. The ADJ+ button moves the display
up. The ADJ- button moves the display down.
E. Pincushion
Adjusts the shape of the left and right sides of the display. The
ADJ+button makesthedisplaysides curveout.TheADJ-button
makes the display sides curve in.
F. Color Adjustment - Red
Adjuststheintensityoftheredsignal.TheADJ+buttonincreases
the red intensity. The ADJ- button decreases the red intensity.
G. Color Adjustment - Green
Adjusts the intensity of the green signal. The ADJ+ button
increases the green intensity. The ADJ- button decreases the
green intensity.
H. Color Adjustment - Blue
Adjuststheintensityoftheblue signal. TheADJ+ button increases
the blue intensity. The ADJ- button decreases the blue intensity.
Section 4 - Troubleshooting
No picture, power indicators A, B, C off
• Check AC cord is plugged into outlet and monitor.
• Turn on the power switch.
No picture, power indicators A, B, C on.
• Adjust brightness and contrast controls.
No picture, power indicator A off, indicators B and C on.
• Monitor is in DPMS “SUSPEND” mode. Press a key or move the
mouse.
No picture, power indicators A and B off, indicator C on.
• Monitor is in DPMS “OFF” mode. Press a key or move the mouse.
• Check that video cable is connected completely.
Image is not centered
• Adjust Vertical Position and Horizontal Position controls.
Appendix A - Specifications
PictureTube Size 17-inchdiagonal
Dotpitch 0.28mm
Surfacetreatment Anti-glare/anti-static
Bandwidth 75MHz

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DataArea 12.75x9.625in.
PresetDisplayModes
Mode Resolution V.Frequency H.Frequency
VGA 640x350 70Hz 31.47KHz
VGA 640x400 70Hz 31.47KHz
VGA 640x480 60Hz 31.47KHz
SVGA 800 x600 56 Hz 35.16KHz
8514A 1024x768 87Hz 35.52KHz
VGA 640x350 84Hz 37.86KHz
VGA 640x400 84Hz 37.86KHz
VGA 640x480 84Hz 37.86KHz
SVGA 800 x600 72 Hz 48.09KHz
SVGA 800 x600 60 Hz 37.88KHz
SVGA 800 x600 72 Hz 48.08KHz
UltraVGA 1024x768 60 Hz 48.37KHz
UltraVGA 1024x768 70 Hz 56.48KHz
UltraVGA 1280x1024 60Hz 64.31KHz
Synchronization Horizontal: 30-66KHz
Vertical: 50-90Hz
Deflection
Geometricdistortion H<=2.5mm,V<=2.5mm
Linearitydistortion H<=10%,V<=8%
Pincushiondistortion <=2mm
Highvoltageregulation H<=4mm,V<=4mm(0-25FL)
Lowradiation MPR-IIspecification
Frontcontrols Power, Brightness, Contrast, Memory Recall, Adj+, Adj-,
Cursor+,Cursor-,Status/Save,Degauss
OnScreenDisplay Horizontal-Size,Horizontal-Position,Vertical-Size,Vertical-
Position,Pincushion,RGBColorAdjustments
RearControl DisplayTilt
Powersaving DisplayPowerManagementSignaling(DPMS)
SUSPENDmode 25W(Max.)
OFFmode 5W (Max.)
Inputvoltage 100-240VAC,50/60Hz
Powerconsumption 120Wmaximum
Operating Temperature 5°-35°C
Environment Humidity 20-90%(non-condensing)
Altitude 0-10,000ft.
Connector BNC, 15 Pin D-Sub
Dimensions 16.59x16.60x16.61
Specificationssubjecttochangewithoutnotice.
Appendix B - Two Year Warranty
MaxTechwarrantstotheoriginalbuyerofthisproductagainstdefectsinmaterialand
workmanshipfortwoyearsfromthedateofpurchase.
Exceptasspecifiedbelow,thiswarrantycoversalldefectsinmaterialorworkmanship
inthisproduct.Thefollowingarenotcoveredbythewarranty:
1. AnyproductwhichisnotdistributedinNorthAmericabyMaxTechorwhichisnot
purchasedinNorthAmericafromanauthorizedMaxTechDealer.

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2. Anyproductonwhichtheserialnumberhasbeendefaced,modifiedorremoved.
3. Damage,deteriorationormalfunctionresultingfrom:
a. Accident,misuse,abuse,neglect,fire,water,lightningorotheractsofnature,
commercialorindustrialuse,unauthorizedproductmodification,orfailureto
followinstructionssuppliedwiththeproduct.
b. RepairorattemptedrepairbyanyonenotauthorizedbyMaxTech.
c. Anyshipmentoftheproduct(claimsmustbepresentedtothecarrier).
d. Removalorinstallationoftheproduct.
e. Anyothercausewhichdoesnotrelatetoaproductdefect.
4. Cartons, carrying cases, batteries, external cabinets, magnetic tapes or any
accessoriesusedinconnectionwiththeproduct.
MaxTechwillpayalllaborandmaterialexpensesforcovereditems,butwewillnotpay
forthefollowing:
1. Removalorinstallationcharges.
2. Costs of initial technical adjustments (set-up), including adjustment of user
controls.
3. Paymentofshippingcharges.
HOW TO OBTAIN WARRANTY SERVICE
If you have problems with your monitor, refer to the troubleshooting section of this
manual.Ifyouareunabletoresolvetheproblem,contactthedealerordistributorfrom
whomtheproductwaspurchased.Adefectivemonitorshouldbereturnedinitsoriginal
packagingtoyourdealerforwarrantyservice.
LIMITATION OF IMPLIED WARRANTIES
Allimpliedwarranties,includingwarrantiesofmerchantabilityandfitnessforaparticular
purpose,arelimitedindurationtothelengthofthiswarranty.
EXCLUSION OF DAMAGES
MaxTech'sliabilityforanydefectiveproductislimitedtotherepairorreplacementofthe
product,atouroption.MaxTechshallnotbeliablefor:
1.Damagetootherpropertycausedbyanydefectsinthisproduct,damagesbased
uponinconvenience,lossofuseoftheproduct,lossoftime,commercialloss;or
2.Anyotherdamages,whetherincidental,consequentialorotherwise.
Somestatesdonotallowlimitationsonhowlonganimpliedwarrantylastsand/ordonot
allowtheexclusionorlimitationofincidentalorconsequentialdamages,sotheabove
limitationsandexclusionsmaynotapplytoyou.
HOW STATE LAW RELATES TO THE WARRANTY
Thiswarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrightswhich
varyfromstatetostate.
Appendix C - Notices
FCC Class B Statement
ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipmentgenerates,usesandcanradiateradiofrequencyenergy,andifnotinstalled
andusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradio
communications.However,thereisnoguaranteethatinterferencewillnotoccurina

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particular installation. If this equipment does cause harmful interference to radio or
televisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,the
user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorientorrelocatethereceivingantenna
• Increasetheseparationbetweentheequipmentandthereceiver
• Connecttheequipmentintoanoutletonacircuitdifferentfromthat towhichthe
receiverisconnected
• Consultthedealeroranexperiencedradio/TVtechnicianforhelp
Notice:Shieldedcables,ifany,mustbeusedinordertocomplywiththeemissionlimits.
AnychangeormodificationnotexpresslyapprovedbytheGranteeoftheequipment
authorizationcouldvoidtheuser’sauthoritytooperatetheequipment.
Canadian DOC Compliance Statement
Thisequipmentdoes not exceedClassBlimitsforradionoiseemissionsforadigital
apparatus,setoutintheRadioInterferenceRegulationsoftheCanadianDepartment
ofCommunications.Operationinaresidentialareamaycauseunacceptableinterfer-
encetoradioandTVreceptionrequiringtheowneroroperatortotakewhateversteps
necessarytocorrecttheinterference.
CetéquipementnedépassepasleslimitsdeClassBd'émissiondebruitsradioélectriques
pourlesappareilsnumériques,tellesqueprescritesparleRèglementsurlebrouillage
radioélectriqueétabliparleministèredesCommunicationsduCanada.L'exploitation
faite en milieu résidentiel peut entraîner le propriétaire ou l'opérateur à prendre
dispositionsnécessairespourenéliminerlescauses.
Disclaimer, Copyright, And Other Notices
Theinformationcontainedinthismanualhasbeenvalidatedatthetimeofthismanual's
production.The manufacturerreservestherighttomakeanychangesandimprove-
ments in the product described in this manual at any time and without notice.
Consequently,themanufacturerassumesnoliabilityfordamagesincurreddirectlyor
indirectlyfromerrors,omissionsordiscrepanciesbetweentheproductandthemanual.
Allregisteredtrademarksarethepropertyoftheirrespectiveowners.
Copyright©1996MaxTech.Allrightsreserved.Noreproductionofthisdocumentinany
formisallowedwithoutwrittenpermissionfromMaxTech.
Appendix D - Video Cable Pinout
FirstEdition GZ/DR -Version 1.0
Figure E - Pin
Layout and Pin
AssignmentChart
61
5
10
11
15
PIN SIGNAL PIN SIGNAL
1Red 9 No Connect
2 Green 10 Digital Ground
3Blue 11 Ground
4 Ground 12 No Connect
5 Ground 13 Hor. Synch.
6Red Ground 14 Vert. Synch
7Green Ground 15 No Connect
8 Blue Ground