Question about PC Desktops

1 Answer

I have had a Hitachi CM721F monitor for about 3 years now, and the focus is getting fuzzy. Is there any way to adjust the focus?? The brightness is fine. Thanks!! Dave Barnes, davidb1569@aol.com

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 176 Answers

If you can open your monitor you can adjust the focus in the back of the plyback of your monitor. But be careful to touch other parts of the monitor to avoid damage to the monitor in to your self. Use sharp thing or plastic to adjust the focus in the plyback. When you open the monitor cover you can find the plyback in the back end of the board of monitor usually color black and there are four wire connected to the board in the monitor yoke. Look for the two holes adjustment the upper one is for the bright and the lower one is for the focus. open the monitor and adjust the focus slowly again avoid to touch the other parts of the monitor. goodluck

Posted on Apr 16, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why is my screen display is very fuzzy


If this is a CRT monitor (glass tube) then there should be a focus control to adjust on the back of the monitor.
If it is an LCD (flat screen) then you may have the resolution set too low. Go into 'Display' in 'control panel' and try increasing the resolution.

May 30, 2014 | PC Desktops

1 Answer

Compaq monitor auto adjusting


Press the button labeled "Auto" on the front of your Compaq monitor. This runs an automatic configuration utility designed to examine your current settings and adjust them to reach the best possible picture quality.

This utility will take only a few seconds and will adjust things like the sharpness, brightness and resolution of the image being displayed. Press the "Menu" button on the front of your Compaq monitor to adjust your monitor's screen settings manually in the event that the auto configuration utility has not done so to your liking.

Navigate to the "Picture" category of your Compaq monitor's on-screen menu to adjust settings like "Brightness" and "Sharpness." These settings can be useful if your monitor is displaying an image that is fuzzy or too dim.

Use the "Color" setting to adjust the amount of red, green and blue that your monitor displays. These settings can be useful if your monitor is displaying too much of one color or not enough of another.

Use the "Default" menu option to reset your Compaq monitor to its original factory settings. This changes any settings you have altered back to the way they were set when the monitor left the Compaq factory

hope this helps



Sep 05, 2012 | Compaq PC Desktops

1 Answer

I find the white background too bright. Can this be changed? Can the white background be altered to a less intense color?


there will be setting in monitor LOT.....try this to change the white background ......in LOT there will be focus adjusting will be there

Sep 24, 2010 | PC Desktops

1 Answer

Slightly out of focus. Is there an (internal) adjustment, and if so, where?


over time the shadow mask picks up a magnetic charge that interferes with the focus of the electron beams which makes the image look fuzzy or out of focus...to fix this.. most monitors have a deguassing coil/button..look for a DEGAUSS button or in the menu selection on the monitor..Degaussing usually makes a "thunk" sound and the screen will go crazy for a moment ..

May 06, 2009 | PC Desktops

2 Answers

Blurred screen on monitor


If that dont work then try to change your other settings on your monitor

Apr 24, 2009 | PC Desktops

1 Answer

Hi, my hp montior has started to become blurred.


Hi,

Assuming that your HP monitor is conventional CRT type and thatno hardware/component fault, the dimness of a monitor signifies near end of life of the CRT (tube).

There are a few tricks/tweaks that can be done but of course these are just prolonging the inevitable. Additionally, this would require experience (not only familiarity) working with high voltage circuitries. Should you want to give any of them a try, they are:
  • Adjust the Screen controller at the rear of the Flyback Transformer (FBT) to maximum effective brightness. It may also be needed to adjust the Focus control;
  • In some versions, there are sub-bright and/or Automatic Brightness Limiter (ABL) trimpots soldered direct to the PCB that can be adjusted;
  • the heater voltage can be slightly increased either by using a stepdown transformer that has multiple taps about 1~2 amps. In some instances, the heater has an external loop around the core of the FBT, adding a turn or so would also serve the same;
  • adding a 100uF/160V capacitor after the diode of the FBT's output that supplies the B+~70VDC of the 3 color drive transistors.
Again, all of the above require experience and knowledge of electronic components and circuitry, use of a soldering iron and working around high voltages. If you are not comfortable going through this route, perhaps your best bet would be to seek the services of a qualified professional.

If your concern has not been corrected after completion of the above procedures, you may need to replace the monitor.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FIXYA.

Oct 30, 2008 | HP PC Desktops

2 Answers

Tha display screen is dark, shows very faintly.


Can you be more specific ?
The first step is to isolate the system at fault:
1) Monitor hardware ?
Test it on another PC or
Try a different monitor on the same PC
Check monitor adjustments.
Check the video cable, try another one.

2) What kind of a monitor is it?
CRT (like and old TV) or an LCD flat screen

3) Video card problem, possible but not as likely

4) Video driver or operating software settings issue
wrong video mode, video settings the monitor can't handle,
incorrect device driver

lots of possibilities here.
MJS

Apr 18, 2008 | PC Desktops

Not finding what you are looking for?
PC Desktops Logo

Related Topics:

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top PC Desktops Experts

joecoolvette
joecoolvette

Level 3 Expert

5660 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18298 Answers

Are you a PC Desktop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...