Question about Compaq TFT5004 (Black) 15 in. Flat Panel LCD Monitor

2 Answers

Dim compaq s510 crt colored monitor

How do i repair a dim compaq s 510 color has no adjustment of brightness..

Posted by on

2 Answers

  • 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.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers
Re: dim compaq s510 crt colored monitor

Hi, If you are comfortable working with tools, down to component level and know how to work around EHV areas, then it is possible to increase the brightness of any monitor including the Compaq S510. Make sure that the unit is unplug, Open the back cover and locate the FBT. You have to run/power on/attach a running PC to the unit with the cover off. Extreme care must be exercised. If you are not sure, you're better off asking a qualified service professional to do the adjustment. There two plastic slotted adjustables, focus & screen. Adjusting the screen changes the screen voltage going to the CRT. This will make the display go very dark or overly too bright. Adjust to your preference (not necessarily technically correct) The focus may also be adjusted this way. You have to run the unit with the back cover open for a couple of minutes to stabilize the voltages and the heater/CRT/ Adjust after a couple of minutes if necessary. In other monitors, there is a trimpot (small variable resistor) the adjusts the sub-bright. Further improvement maybe achieved by adding a 100uF/250V capacitor across the supply of the 70+VDC of the 3 gun transistors. If you are sure how to go about this, it is best to consult or seek the services of a qualified TV technician who can either show where and how or do the job himself. Hope this be of some help to you. Pls post again how things turn up. Good luck and kind regards.

Posted on Jul 31, 2007

Re: dim compaq s510 crt colored monitor

The above solution worked perfectly for the Gateway EV910. Originally I had maxed brightness on front control knob and played with gamma/etc in vid card settings. Nothing worked as well as above mentioned. Thank you very much!

I got this monitor from the trash and now I know why : )

Posted on Feb 24, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Why does acer monitor need color brightness adjusted every time I turn it on?

You need to save your settings after adjustment. It will revert back to standard setting if you don't save.

Sep 08, 2014 | Acer Computer Monitors

1 Answer


Press the menu button and select the brightness,try decreasing the brightness.Also try lowering the constrast and other color.Hope it works.

Oct 20, 2012 | Compaq CV 7500 17" CRT Monitor

1 Answer


It will cost $50 to $100 to trouble-shoot and repair any 15-inch monitor.

It will cost $20 to $40 to purchase a "pre-owned" 15-inch LCD monitor.

If will cost $50 to $100 to buy a new 17-inch LCD monitor.

Your money; your choice.

Jul 19, 2011 | Compaq S510 15" Color Monitor

1 Answer

My monitor does not have any red color to it is there a way to adj. color inside of monitor. thank you

It is very dangerous to work on tv's or monitors without the proper training. They hold voltage even after they are turned off and unplugged, enough to seriously injure someone. There are however adjustments that can be made once you crack open the casing, but if it has already lost color, it will only continue to lose it if you can ever get it set back right again. You best option would be to acquire another monitor. If you want to try it anyway, there are screws in the back of the metal chassis that adjust color, hue, brightness, and shape, that can be adjusted with a small screwdriver.

Aug 18, 2010 | Compaq MV 740 17" CRT Monitor

1 Answer

My microphone suddenly stop working on my compaq mv520 monitor. can you tel me what can i do to fix it?

Try deinstalling the mic and redownload and install fresh driver see how that goes should clear up any glich

Dec 30, 2009 | Compaq S510 15" Color Monitor

1 Answer

Brightness of monitor changes itself to quite dim

YOu can go to the monitor settings to make sure nothing's been changed. It could be an energy saver issue where the display dims after a certain period of time, and you can reset it to longer period of time so it would stay bright for you

Dec 12, 2008 | CTX PV 700B 17" LCD Monitor

6 Answers

Monitor problem


Appreciate the "Ask Me".

I am assuming that you have more than just familiarity with electronic components and circuitry, the use of a DVM and a soldering iron. Further, that you have access to a service manual.

Width problem is basically insufficient horizontal deflection, then analysis would have to be in the horizontal section. Areas to initially focus on:
  1. 12V line and pin 29 of IC401;
  2. 110 V peak to peak at collector of Q403, if yes check Q 402 & 404 as well as T401;
  3. other components that affect the horizontal size are:
  • IC201
  • Q 405, 406, 407 & 408;
  • D409
  • L401
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.

Aug 06, 2008 | Samsung SyncMaster 753S 17" CRT Monitor

1 Answer

How to maximize color of monitor?

The monitor and laptop are not compatible or the cable is not properly connected.

Jun 12, 2008 | Compaq CV 7500 (Carbon, Silver) 17 in.CRT...

1 Answer

The monitor hjas lost its original colour,It potrays images that are a bit red and yellow.Its a Compaq V570

It's probably not a matter for adjustment, it's probably in need of electrical troubleshooting to find and replace defective components. It may be the CRT itself. One way they often fail is to show or lose one particular color more than another. These days a common 15" CRT monitor is probably not economical to repair by a brick-and-mortar service shop.

Jan 06, 2007 | Compaq V 570 15 in.CRT Conventional...

Not finding what you are looking for?
Compaq TFT5004 (Black) 15 in. Flat Panel LCD Monitor Logo

423 people viewed this question

Ask a Question

Usually answered in minutes!

Top Compaq Computer Monitors Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

William Miller
William Miller

Level 3 Expert

8795 Answers

Ricky Ostrom
Ricky Ostrom

Level 2 Expert

270 Answers

Are you a Compaq Computer Monitor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides