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LG 790SC, User Manual

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vi

Table of Contents

Introduction

Features

....................................................................................................

A1

Monitor Registration

Notice

........................................................................................................

A2

Trademark Acknowledgments

....................................................................

A2

Important Precautions

On Safety

..................................................................................................

A3

On Installation .................................................................................................A4
On Cleaning ....................................................................................................A4
On Repacking .................................................................................................A4

Connecting the monitor

Connecting to any IBM VGA PC Compatible System

...................................

A6

Connecting to an Apple Macintosh II, Centris and Quadra.............................A7

Location and Function of Controls

Front View

.................................................................................................

A8

Rear View .......................................................................................................A8

Control Panel Function

OSD Enter Button ...........................................................................................A9
OSD Exit Button..............................................................................................A9
OSD Select/Adjustment Buttons .....................................................................A9
Brightness Adjustment Control .......................................................................A9
Contrast Adjustment Control...........................................................................A9
Power (DPMS) Indicator .................................................................................A9
Power ON/OFF Button....................................................................................A9

On Screen Display (OSD) Control Adjustment

.................................A10

On Screen Display (OSD) Selection and Adjustment

....................A11

Video Memory Modes

Factory Preset Timing Signal Chart ..............................................................A17
User Modes...................................................................................................A19
Recalling Display Modes...............................................................................A19

Energy Saving Design

Power Consumption......................................................................................A20

MPR II, Self Diagnostics and DDC

Low Radiation Compliance (MPR II).............................................................A21
Self Diagnostics ............................................................................................A21
DDC (Display Data Channel) ........................................................................A21

Troubleshooting and Service

Troubleshooting ............................................................................................A22
Service ..........................................................................................................A23

Specifications

Specifications

..........................................................................................

A24

Monitor Limited Warranty

.....................................................................

A26

Summary of Contents for 790SC

Page 1: ...ead this manual carefully before operating your set Retain it for future reference Record model number and serial number of the set See the label attached on the back cover and quote this information to your dealer when you require service Avant d utiliser ou de régler cet appareil pour la première fois lisez attentivement ce manuel d instructions ...

Page 2: ...measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Caution Changes or modifications not expressly approved by LG Electronics Inc for compliance could void the user s...

Page 3: ... 1 e he e he e he e he e he e 3 L g J 5 e N 1 g 7 H e 3 g 5f N 6KeO2 Hf 3 5 f V4 0Y f I4 0M g W5 0Y O2 6Kg W2 6Xf 7 MI 1f J YeV L e 7 H e N 1 e g e 3 f J e N f 7 e 3 6K e V4 e I4 0Y e e e g e 3 L e J 5 e N KeO H e 3 5f V4 0Yf I4 0Mg f f hf hf hf hf W2 6Kg 6Xf 0 1f MeV L e 0Y e N 1 e e e e f J 5 e 3 fO H e N 6 2 5f 0Yf I4 0Mg f f f f f f f g f f g f f g f f g f f g f f g f f g f e g f e g f f g f f...

Page 4: ...iii ...

Page 5: ...TCO 95 Environmental Requirements iv ...

Page 6: ... for Disassembly Recycling These monitors have been designed for easy end of life disassembly and recycling Fasteners are generally of the same type for efficient disassembly Components made of different materials can be easily separated and plastics have been identified using intermational symbols to aid in recycling Monitor Disposal WARNING If you need to dispose of a monitor ask a qualified ser...

Page 7: ... Button A9 OSD Select Adjustment Buttons A9 Brightness Adjustment Control A9 Contrast Adjustment Control A9 Power DPMS Indicator A9 Power ON OFF Button A9 On Screen Display OSD Control Adjustment A10 On Screen Display OSD Selection and Adjustment A11 Video Memory Modes Factory Preset Timing Signal Chart A17 User Modes A19 Recalling Display Modes A19 Energy Saving Design Power Consumption A20 MPR I...

Page 8: ...en 30 and 100kHz and vertical scan frequencies between 50 200Hz The microprocessor based intelligence allows the monitor to operate in each frequency mode with the precision of a fixed frequency monitor g g g g g g g g g g g g The microprocessor based digital controls allow you to adjust conveniently a variety of image controls by using the OSD On Screen Display g g g g g g g g g g g g The monitor...

Page 9: ...odel No Serial No Notice All rights reserved Reproduction in any manner in whole or in part is strictly prohibited without the written permission of LG Electronics Inc Trademark Acknowledgments LG is a trademark of LG Electronics Inc IBM is a registered trademark and VGA is a trademark of International Business Machines Corporation Warning To reduce the risk of fire or electric shock do not expose...

Page 10: ...So are frayed power cords and broken plugs They may result in a shock or fire hazard Call your service technician for replacement Do not Open the Monitor g g g g g g g g g g g g There are no user serviceable components inside g g g g g g g g g g g g There are Dangerous High Voltages inside even when the power is OFF g g g g g g g g g g g g Contact your dealer if the monitor is not operating proper...

Page 11: ...ngs are blocked built up heat can cause failures which may result in a fire hazard Therefore NEVER g g g g g g g g g g g g Block the bottom ventilation slots by placing the monitor on a bed sofa rug etc g g g g g g g g g g g g Place the monitor in a built in enclosure unless proper ventilation is provided g g g g g g g g g g g g Cover the openings with cloth or other material g g g g g g g g g g g...

Page 12: ...tor allow for a wide variety of video controllers to be connected to the monitor Examples of signals that might be sent to the monitor include signals from IBM PC and compatibles Apple Macintosh Centris and Quadra The supplied signal cable consists of 15 pin VGA connectors at both ends suitable for connections to an IBM PC or compatible Other generic cables or adapters may be used for connections ...

Page 13: ...ct the 15 pin VGA connector of the supplied signal cable to the output VGA video connector on the PC and the matching input connector on the rear of the monitor The connectors will mate only one way If you cannot attach the cable easily turn the connector upside down and try again When mated tighten the thumbscrews to secure the connection 3 Power ON the PC then the monitor 4 If you see the SELF D...

Page 14: ...high density 3 row 15 pin VGA connector to the correct 15 pin 2 row connection to mate with your MAC Attach the other end of the signal cable to the side of the adapter block with 3 rows 3 Connect the attached adapter block signal cable to the video output on your MAC 4 Power ON the PC then the monitor 5 If you see the SELF DIAGNOSTICS message check the signal cable and connectors 6 After using th...

Page 15: ... Connector ID Label Power DPMS Indicator Rear View Power ON OFF Button Digital Control Panel Brightness Adjustment Control Contrast Adjustment Control Location and Function of Controls Note Turn on the monitor using the ON OFF switch on the rear of the monitor This switch cuts off the power supply to the monitor ...

Page 16: ...creen Use this knob for selecting highlighting an OSD icon to be adjusted It is also used for selecting the level of the selected item to be adjusted OSD Exit Button OSD Select Adjustment Buttons Used to adjust the brightness of the screen Brightness Adjustment Control Adjust the display to the contrast desired Contrast Adjustment Control This indicator lights up green when the monitor operates no...

Page 17: ...nu of the on screen display system with the first highlighted 1 The OSD system should look like 2 To adjust Press the enter button once The display will look like When you are done Press the main button once to return to main menu to make another selection 3 You want to move the next icon Adjust the next button O2 f O2 f O2 f W2 f O f O2 f O2 f O2 f f I4 f I4 f I f V4 f I4 f I4 f I4 f 6K 6K hg 6K ...

Page 18: ...l Size B A S I C A D J U S T M E N T S E N T E R S E L OSD ETC 6 8 7 k H z 8 5 H z S E L OSD ETC H P O S I T I O N E N T E R S E L 6 8 7 k H z 8 5 H z S E L OSD ETC H P O S I T I O N E X I T A D J M I N M A X To adjust image width To move image up and down To adjust image height If the monitor is operating in a factory preset mode this control will reset the image to the factory preset mode If the...

Page 19: ...ance of both sides bowling This control adjusts for a skewing of the screen image To correct the balance of both sides S bowling To correct the balance of both sides W bowling Select the Recall screen to reset Side Pincushion Balance Parallelogram Pin S Adjust and Pin W Adjust to their original factory preset settings If the monitor is operating in a user mode this control has no effect Recall Sid...

Page 20: ...S E L OSD ETC H M O I R E E X I T A D J M I N M A X Reduce vertical moire when interference patterns of dark steady wary lines appear on your screen The moire adjustments may affect the focus of the screen This item allows you to adjust the horizontal convergence The horizontal convergence control adjust the alignment of the red and blue horizontal fields This control adjust the purity of the over...

Page 21: ... R S E L 6 8 7 k H z 8 5 H z To appear the display s color temperature Slightly reddish white To set your own color levels Allow for specific adjustments to Red Green and Blue R G B Temperature range is from 4000K to 10000K So user easily color set without adjustment Red Green and Blue R G B CLAMP Clamp In case of input SOG Sync On Green Video Signal the back raster will appear the green Then to s...

Page 22: ...N E X I T A D J L A N G U A G E E N T E R S E L OSD ETC 6 8 7 k H z 8 5 H z OSD ETC L A N G U A G E E N G L I S H D E U T S C H F R A N Ç A I S E S P A Ñ O L I T A L I A N O S U O M I S V E N S K A E X I T S E L This item lets you adjust the OSD vertical position To control OSD display time from 5 second to 120 second Language To choose the language in which the control names are displayed OSD Men...

Page 23: ...I S C E L L A N E O U S OSD ETC ETC E N T E R S E L 6 8 7 k H z 8 5 H z S E L OSD ETC D D C D E G A U S S ii E N T E R S E L 6 8 7 k H z 8 5 H z To inform users of preset and user mode data This item provides information about the stored video modes To select input signal Level 0 7V or 1 0V DDC Display Data Channel To select the DDC function ...

Page 24: ...mS 14 270 16 683 11 763 11 756 16 666 11 765 A Data Period mS 12 710 15 253 11 093 11 178 15 880 11 183 B Blanking mS 1 557 1 430 0 670 0 578 0 786 0 582 C Front Porch mS 0 413 0 318 0 023 0 019 0 062 0 015 D Pulse Width mS 0 064 0 064 0 069 0 056 0 124 0 044 E Back Porch mS 1 080 1 048 0 578 0 503 0 600 0 523 F Resolution 720 640 640 800 1024 1024 6Xf W2 he V X eW Y he V X W Yhf V Y hf V Yhg W Xh...

Page 25: ...006 11 235 12 800 12 000 12 549 12 667 B Blanking mS 0 657 0 527 0 533 0 500 0 865 0 655 C Front Porch mS 0 016 0 011 0 011 0 010 0 040 0 044 D Pulse Width mS 0 047 0 033 0 032 0 030 0 061 0 044 E Back Porch mS 0 594 0 483 0 490 0 460 0 764 0 567 F Resolution 1280 1280 1600 1600 832 1152 6Xf W2 he V X eW Y he V X W Yhf V Y hf V Yhg W Xhg W X hf W Y V Xhf W Y eV X he 0Yf V4 he 1024 6Xf W2 he V X eW...

Page 26: ... mode 1 Recalling Display Modes When your monitor detects a mode it has seen before it automatically recalls the image settings you may have made the last time you used that mode You may however manually force a recall of each of the 12 preset modes by pressing the Recall button All preset modes are automatically recalled as the monitor senses the incoming signal The ability to recall the preset m...

Page 27: ...n color to an amber color After an extended period in the suspended mode the monitor will then enter a semi OFF mode to conserve more energy In the semi OFF mode or DPMS OFF mode as we call it in our specifications the Power LED will still show an amber color When you awaken your PC by hitting a key or moving the mouse the monitor will also awaken to its normal operating mode indicated by the gree...

Page 28: ...On but no signal is detected In this case the message CHECK SIGNAL CABLE will be high lighted alerting you to check the signal cable connections DDC Display Data Channel DDC is a communication channel over which the monitor automatically informs the host system PC about its capabilities This monitor has two DDC function DDC1 DDC2B DDC1 and DDC2B carry out uni directional communication between the ...

Page 29: ...l or not a rectangle shape g g g g g g g g g g g g Image adjustment not been done yet in the current operating mode Use the SELECT and O2 f O2 f O2 f W2 f O f O2 f O2 f O2 f f I4 f I4 f I f V4 f I4 f I4 f I4 f or 6K 6K hg 6K hf 6X he Khe 6Kh 6Kg 6Kf e 0Mg 0Mh Mhe 0Y he 0M hf 0M hg 0M buttons to set the image to your liking The monitor doesn t enter the power saving off mode Amber g g g g g g g g g...

Page 30: ...rmance g g g g g g g g g g g g Snapping or popping from the monitor is continuous or frequent while the monitor is operating It is normal for some monitors to make occasional sounds when being turned on or off or when changing video modes Do not attempt to service the monitor yourself as opening or removing covers may expose you to dangerous voltage or other hazards Refer all servicing to qualifie...

Page 31: ...e A24 1 5 6 10 11 15 N C No Connection Type H Sync V Sync Green Separate Sync H Sync V Sync Composite Sync H V Sync N C Sync On Green H V Sync Pin Signal D Sub 1 Red 2 Green 3 Blue 4 Ground 5 Self Test 6 Red Ground 7 Green Ground 8 Blue Ground 9 NC 10 Ground 11 Ground 12 SDA 13 Hori Sync 14 Vert Sync 15 SCL ...

Page 32: ...Green g g g g g g g g g g g g Signal input 15 pin D Sub Connector Video Input g g g g g g g g g g g g Display Area 12 2 x 9 06 inches 310 x 230mm H x V g g g g g g g g g g g g Input Form Separate RGB Analog 0 7 Vp p 75 ohm Positive g g g g g g g g g g g g Resolution 1600 x 1200 80Hz Power Input g g g g g g g g g g g g 100 240VAC 50 60Hz 2 0A Dimensions with tilt swivel stand g g g g g g g g g g g ...

Page 33: ...ed warranty lasts so these limitations or exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state THE ABOVE WARRANTY DOES NOT APPLY To damages or problems which result from delivery or improper installation To damages or problems which result from misuse abuse accident alteration or incorrect electrical current...

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