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9

How to change display modes

Your operating system manual defines the procedure 
you should follow to change the default display 
mode.

After selecting the optimum mode you need not perform 
this operation again unless you change your computer or 
software configuration.

Notes: 

1. The computer automatically changes display modes to 

accommodate some applications. Generally, you will 
not notice this.

2. The image size, position and shape may change when 

the display mode changes. This is normal and the 
image can be readjusted using the monitor controls 
(see

 Adjusting the image  on page 10).

Legend :   I = Interlaced
              NI = Non-Interlaced

Addressability

Refresh

Line Rate

Notes

720 x 400

70 Hz NI

31.5 kHz

DOS Prompt

640 x 480

60 Hz NI

31.5 kHZ

VESA

640 x 480

72 Hz NI

35.5 kHZ

VESA

640 x 480

75 Hz NI

37.5 kHZ

VESA

640 x 480

85 Hz NI

43.3 kHZ

VESA

800 x 600

72 Hz NI

48.1 kHZ

VESA

800 x 600

75 Hz NI

46.9 kHZ

VESA

800 x 600

85 Hz NI

53.7 kHZ

VESA

1024 x 768

43 Hz I

35.5 kHZ

Interlaced

1024 x 768

70 Hz NI

56.5 kHZ

VESA

1024 x 768

72 Hz NI

58.1 kHZ

Table 1. Factory Set Display Modes.

use.doc  Page 9  Sunday, July 16, 1995  3:45 PM

Summary of Contents for G41/G50

Page 1: ...IBM G41 G50 Colour Monitor User s Guide cover doc Page 1 Wednesday July 12 1995 5 14 PM ...

Page 2: ... 1995 All rights reserved Note to U S Government Users Documentation related to restricted rights Use duplication or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp Notices References in this publication to IBM products programs or services do not imply that IBM intends to make these available in all countries in which IBM operates Any reference to an IBM...

Page 3: ...ord set consisting of a minimum 18 AWG type SVT or SJT three conductor cord a maximum of 4 57 metres 15 feet in length and a parallel blade grounding type attachment plug rated 15 amperes 125 volts For units intended to be operated at 230 volts U S use Use a UL listed and CSA certified cord set consisting of a minimum 18 AWG type SVT or SJT three conductor cord a maximum of 4 57 metres 15 feet in ...

Page 4: ...tions 5 Installation 6 Connecting the Monitor 7 Optimising performance 8 Adjusting the image 10 Indicators 12 Disabling DDC 14 Working with your Monitor 15 Troubleshooting 16 Glossary 19 Specifications 20 Compliances 21 Warranties 22 como toc Page 1 Wednesday July 12 1995 5 18 PM ...

Page 5: ... image display requirements as defined by EC Directive 90 270 EEC 2 when attached to a suitably configured computer Digital multi frequency circuitry Offers compatibility with a wide range of video signal standards Power management Supports both the US Environmental Protection Agency EPA Energy Star and the Swedish NUTEK power consumption requirements conserving energy reducing costs and prolongin...

Page 6: ...t ask someone to assist you Lift the monitor by holding it firmly under each side and use proper lifting techniques Unpacking checklist The following items are supplied with this product If any item is damaged or missing notify your supplier Monitor Tilt swivel stand attached Signal cable attached Power cable Also supplied is this User s guide and a Quick Start information card use doc Page 3 Sund...

Page 7: ...You should record the following information 1 Monitor name ______________________________ 2 Machine type model ____________________ 3 Serial number _________________________ 4 Date of purchase ____________________________ Information is on label at the back of the monitor IBM G41 G50 use doc Page 4 Sunday July 16 1995 3 45 PM ...

Page 8: ...6542 302 6542 303 6542 304 6542 305 Mains Voltage Vac 100 120 Vac 50 60 Hz 200 240 Vac 50 60 Hz 100 240 Vac 50 60 Hz 100 240 Vac 50 60 Hz 100 240 Vac 50 60 Hz Typical Current Amps 1 4A at 110 Vac 0 7A at 220 Vac 1 4A at 110 Vac 1 4A at 110 Vac 1 4A at 110 Vac G50 6543 301 6543 302 6543 303 6543 304 6543 305 6543 333 100 120 Vac 50 60 Hz 200 240 Vac 50 60 Hz 100 240 Vac 50 60 Hz 100 240 Vac 50 60 H...

Page 9: ...using a keyboard your forearms should be approximately horizontal If your desk is of a fixed height adjust your chair so that your arms are in a comfortable position If your desk is of adjustable height first adjust your chair so that you are seated comfortably and then adjust your desk Chair Your chair should support your lower back and fit the curvature of your spine Adjust the chair so your thi...

Page 10: ...ed In this case attach the signal cable to the connector on the video adapter card 2 Connect the power cord to the monitor first Then insert its plug in a properly grounded electrical outlet 3 Connect the power cord to the computer Then insert its plug into a properly grounded electrical outlet 4 Turn on the monitor then the computer or both at the same time if using a power strip If attaching to ...

Page 11: ...er of times per second that the screen image is repainted by the computer or video adapter card e g 72 Hz Display Modes can be either Interlaced or Non interlaced see Glossary Your monitor can support a wide range of display modes For the display modes in Table 1 the screen image has been optimised during manufacture Selecting display modes The display mode that your monitor uses is controlled by ...

Page 12: ...play mode changes This is normal and the image can be readjusted using the monitor controls see Adjusting the image on page 10 Legend I Interlaced NI Non Interlaced Addressability Refresh Line Rate Notes 720 x 400 70 Hz NI 31 5 kHz DOS Prompt 640 x 480 60 Hz NI 31 5 kHZ VESA 640 x 480 72 Hz NI 35 5 kHZ VESA 640 x 480 75 Hz NI 37 5 kHZ VESA 640 x 480 85 Hz NI 43 3 kHZ VESA 800 x 600 72 Hz NI 48 1 k...

Page 13: ...y changes that you have made press the right hand side of Key 1 where you see the following symbol within 5 seconds of making the change Geometry reset To reset the image size position and shape to the factory settings press the left hand side of Key 1 where you see the following symbol There may not be any settings for the display mode you are using and so the key may have no effect Image size po...

Page 14: ...should remain sharp For ergonomic reasons it is recommended that the contrast is not adjusted to maximum Disabling the controls Some users may wish to disable the monitor controls to prevent tampering To disable the controls press and hold down the right hand side of Key 1 where you see the following symbol Hold the button for 15 seconds After 15 seconds the screen and LED will both flash to indic...

Page 15: ... green Display mode out of range 1 On The monitor is fully operational for normal use The power indicator light is green 2 Standby After a defined period of inactivity the monitor will enter the Standby state The monitor screen will go blank and 5 seconds later the power indicator light will alternate between green and amber with the green light staying on for longer than the amber Pressing a key ...

Page 16: ... the power consumption requirements of both Energy Star and Swedish NUTEK specification 803299 To reactivate the monitor simply press a key or move the mouse There will be a short delay before the screen image reappears As an Energy Star Partner IBM has determined that this product meets Energy Star guidelines for energy efficiency Whether or not you make use of VESA DPMS power management IBM reco...

Page 17: ...hing is displayed on the screen since after the 15 second delay the screen will flash confirming that the change has been implemented In addition it is possible to find out whether or not DDC is enabled by looking at the LED If DDC is disabled the LED will go amber for two seconds at power up before turning green If DDC is enabled the LED will be continually Green Each time the monitor is powered ...

Page 18: ... as the lighting changes during the day Many application programs let you select colour combinations which can help you to view in comfort IBM recommends that the use of primary colour blue on a dark background be avoided It is difficult to see and may cause eyestrain due to insufficient contrast Cleaning the Monitor You should clean the screen when it becomes dusty or marked Important Important T...

Page 19: ...heck no pins are bent in the signal cable connector Disable DDC and restart your computer See Page 14 Screen is green Disable DDC and restart your computer See Page 14 Screen is blank and power indicator is flashing between green and amber The monitor is in Power Management Stand by or Suspend state Press any key on the keyboard or move the mouse to restore operation Check the signal cable is firm...

Page 20: ...tor away from any fluorescent lighting Image appears to be discoloured Move the monitor away from any equipment that produces strong magnetic fields Problem Suggested action Image cannot be centred This may be caused by the signal timings that the computer is sending and does not indicate that the monitor is faulty Reconfigure the computer to use a different display mode Controls not working Power...

Page 21: ...uch of the following information as possible 1 The information from the Product Records section on page 4 2 Proof of purchase 3 Description of problem 4 Computer type and model 5 System configuration hardware fitted etc 6 System BIOS version number 7 Operating System and version number 8 Display driver version number If possible be at your workstation Your technical support representative might wa...

Page 22: ... the screen image in two passes One pass scans the even lines the next pass scans the odd lines ISO International Organisation for Standardisation responsible for the ISO 9241 part 3 Standard for Computer Systems Non Interlaced A non interlaced display mode causes the electron beam to refresh the screen image in one pass NUTEK Swedish National Board for Industrial and Technical Development involve...

Page 23: ...ideo input Input Signal Horiz Addressability Vert Addressability DDC Capability Clock Rate Analogue Direct Drive 75 ohm 0 0 7v 1024 pels max 768 pels max DDC 1 2 B 79 Mpels sec Synchronisa tion Range Horiz Frequency Vert Frequency 31 kHz 58 kHz 50 Hz 110 Hz Tilt Swivel Forward tilt Backward tilt Swivel 5 15 150 Power Consump tion Typical XGA Normal Operation VESA Standby State VESA Suspend State V...

Page 24: ...022 The limits for Class B equipment were derived for typical residential environments to provide reasonable protection against interference with licensed communication devices Properly shielded and grounded cables and connectors must be used in order to reduce the potential for causing interference to radio and TV communications and to other electrical or electronic equipment Such cables and conn...

Page 25: ... the country of purchase in respect of an IBM product are available from the supplier Please retain them with your proof of purchase No statements contained in this documentation shall affect the statutory rights of consumers use doc Page 22 Sunday July 16 1995 3 45 PM ...

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