Question about ViewSonic VA721 17" LCD Monitor

1 Answer

IBM LCD computer monitor is dim

I bought a used 15" IBM LCD monitor that is not very bright even when the controls are turn up to the max. I'm pretty handy with electronic repair. Is this a somewhat inexpensive repair like changing some bulbs? (not an expensive screen as the picture and colors are fine)

Posted by mrdweiss on


1 Answer

Thomas Christopher

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,601 Answers

Your backlight may be going bad, or the small controller board may be going bad also. You will have to contact ViewSonic for prices. It is not that difficult to change them out.

Posted on Nov 29, 2007


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Sir iave an IBM desktop and the monitor windows

Press Fn+F5 to decrease brigtness Fn+F6 to increase brightness

Try this please.

Jul 05, 2010 | IBM E74 17" CRT Monitor

1 Answer

Monitor losing brightness

Well it does sound like your monitor is going to die soon. You'll just need to replace it, trying to fix a 7yr old monitor is exactly worth it. Fixing it would be costly so you may as well buy a new one.not sure what you mean by integrated with drive unit. some elaborating would help :D

May 06, 2010 | IBM NetVista PC Desktop

1 Answer

I need to find the VGA controller for the Dell 2005FPW monitor

you can use on all vga cards(you dont need any special controler), this monitor has a USB hub
and its is detected normaly on winxp or above, and the vga cards detect the monitor auto.
i give you the monitor specs, take form website

Display Type LCD display / TFT active matrix
  • Built-in Devices USB hub
  • Width 18.6 in
  • Depth 9 in
  • Height 15.3 in
  • Weight 17.6 lbs
  • Enclosure Color Midnight gray
  • Image
    • Display (projector) image aspect ratio 16:10
    • Image brightness 300 cd/m2
    • Image Contrast Ratio 600:1
    • Max horizontal view angle +88 / -88
    • Max vertical view angle +88 / -88
    • Diagonal Size 20.1 in
    • Viewable Size 20.1 in
    • Dot Pitch / Pixel Pitch 0.258 mm
    • Max Resolution 1680 x 1050 / 60 Hz
    • Color Support 24-bit (16.7 million colors)
    • Max Sync Rate (V x H) 75 Hz x 83 KHz
    • Video Bandwidth 146 MHz
    • Response Time 12 ms
    • Controls / Adjustments Zoom , Clock , Phase , Contrast , Sharpness , Brightness , Saturation , H/V position , Color balance
    • Display Positions Adjustments Height
    • OSD Languages French , German , English , Spanish , Japanese
    • Display Screen Coating Anti-glare , Hard coating
    • Video Output None
    • Signal Input DVI-D, VGA
    • Features Picture by picture , Picture in picture
    Video Input
    • Analog Video Signal RGB , S-Video , Composite video
    • Digital Video Standard Digital Visual Interface (DVI)
    Audio Output
    • Type None
    Input Device
    • Type None
    Expansion / Connectivity
    • Interfaces 1 x VGA - 15 pin HD D-Sub (HD-15) , 1 x DVI-D - 24 pin digital DVI , 1 x Composite video input - RCA , 1 x S-video input - 4 pin mini-DIN , 4 x Hi-Speed USB downstream - 4 pin USB Type A , 1 x Hi-Speed USB upstream - 4 pin USB Type B
    • Flat Panel Mount Interface 100 x 100 mm
    • Features Security lock slot (cable lock sold separately)
    • Compliant Standards CE , CCC , MIC , NOM , PSB , BSMI , GOST , SASO , NEMKO , TUV S , C-Tick , TUV GS , EN55022 , TCO '99 , EN 60950 , ICES-003 , TUV Ergo , UL 60950 , IEC 60950 , EN 61000-3-2 , EN 61000-3-3 , FCC Part 15 B , VCCI Class B ITE
    • Form Factor External
    • Voltage Required AC 120/230 V
    • Power Consumption Operational 55 Watt
    • Power Consumption Stand by / Sleep 3 Watt
    Environmental Parameters
    • Min operating temperature 41 °F
    • Max operating temperature 95 °F
    • Operating humidity range 10 - 80%
    • EPA Energy Star Compliant Yes

    Feb 13, 2010 | Dell UltraSharp 2005FPW 20.1" LCD Monitor

    1 Answer

    My monitor is blank. No power when connected to computer. What went wrong It is a benq model

    filmorepetty, The "switch-mode-power-supply" has gone into SHUTDOWN mode because it has detected a fault with itself or another circuit. Or it could have just blown a small fuse on the circuit board of the SMPS. Will the pilot lamp light-up? Did it have a clean, bright, crisp, image displayed on the lcd panel the day before? How old or how many total (approx) "ON" hours of use has it seen? Do you know that 98% of lcd monitors use "cold-cathode-fluorescent-lamps" and an accompanying "electronic ballast" circuit to generate the WHITE LIGHT needed for you to see the pretty colors on the LCD Panel?? Same basic lighting technology as the new screw-in socket curlie-Q CFL light bulbs! Only your monitor's lamps are thinner and straight and hung on the rear of the LCD panel. A failure of the ballast circuit could cause SMPS to shutdown. I suggest you visit some other websites for more info on what other owners are doing to try and repair BLACK SCREEN lcd monitor problems. The first place to go would be YOUTUBE and search and view the longer 6-12 minute video clips of "LCD monitor disassembly" and "LCD monitor repair" just FYI and to know what you are dealing with??? Your unit could also have FAILED electrolytic filter capacitors on the SMPS printed circuit board. I'm 12fixlouie Bye for now.

    Dec 04, 2009 | Dell E153FP 15" LCD Monitor

    4 Answers

    Monitor problem

    Hi ,
    you set the Brightness manually or otherwise you will repair the monitor.


    Aug 15, 2009 | IBM E54 15" CRT Monitor

    1 Answer

    IBM T860 Monitor (9494HB0)


    Assuming that nothing is electronically wrong with the IBM 9494, it should work with the old monitor cable (VGA) as well as the old monitor power cord.

    Kind regards.

    Jan 11, 2008 | Computers & Internet

    1 Answer

    Need help with Compaq MV5500 CRT 15 inch monitor

    hi there, your switch botton is failling, manual buttons on the front to adjust controls, do some switch test, replace micro botton switch. ty

    Dec 26, 2007 | Gateway FPD2275W LCD Monitor

    1 Answer

    IBM E54 15 in.CRT

    ello,hope this thing coud help.Have you already replaced your
    FBT? is your screen control from the flyback working well, if not-
    chage your FBT.

    Sep 11, 2007 | IBM E54 (Pearl, White) 15 in.CRT...

    1 Answer

    Have lost ability to control brightness.

    wow a CRT that even glows at all , and you wonder why its dem
    the electron gun cathodes get weaker every day of its life.
    all CRTs do that, not one or even TVs using CRT
    the red gun always goes dim first so we crank it up in the OSD.

    if it fails on all PCs, the monitor is bad, a 5 min test. and bingo
    then if the monitor is known bad then what.
    the OSD screen ever seen that, and the front panel key marked MENU/?
    go there and play with brightness, and even the electron gun tuning, the page for that is RGB, Red Green blue.
    adjust them so white looks OK.
    but if all are dim, that is normal for old CRT,
    we only get like 3 folks a year stuck in 1990s... or older.
    the labor to fix it is 3 times a new LCD LED display.

    land fill time. like the other billion made, and scrapped

    Nov 20, 2017 | Compaq Presario 1510 (White) 15 in.CRT...

    4 Answers

    Getting More Brightness/Contrast ?

    problem with my monitor Viewsonic E70....Memory recall keep flashing......any help out there.....

    Mar 15, 2006 | HP 90 19 in.CRT Conventional Monitor

    Not finding what you are looking for?
    ViewSonic VA721 17" LCD Monitor Logo

    93 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top ViewSonic Computers & Internet Experts


    Level 3 Expert

    13434 Answers

    Cindy Wells

    Level 3 Expert

    6080 Answers

    Dimitar Todorov

    Level 2 Expert

    241 Answers

    Are you a ViewSonic Computer and Internet Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides