20 Most Recent Sony CPD G420 19" CRT Monitor Questions & Answers


I can presume that your monitor is turned ON or at standby power supply all the time 24/7. That makes the power supply is always availabe on circuit boards. 1. check the data cable or switch to new one... 2. Open your monitor there is data bus cable connected to LCD monitor from circuit board. clean it with CRC cleaner.. beware that the spray is done only and only on the socket of that cable.... 3. Reinsert that cable and check again... I think that due to continuous operation of LCD monitor some carbon has been deposited inside the jacket.

Sony CPD G420... • Answered on Apr 16, 2019


dear..... to do it set.... you have to open the box with due care as the electricity of the equipment should be turned OFF.... There is a main cable connected with the center of CRT and going onto a section of board called flyback.... is picture can easily been seen on net..... the rotate is anticlock slowly and you will find that brightness of you CRT is getting dimmer.... set is where you want.... actually its screen voltage regulation

Sony CPD G420... • Answered on Jun 03, 2017


just unplug the signal cable and see if it shows a warning! if it shows then the monitor is in some working condition! this problem mainly is not the monitors problem its the systems problem, it seem as if the system is in standby when u on it right??? it happens when the processor doesn't get supply or it refuses to come on! you will see that the red hdd load led will not light when u start the CPU; just open the CPU and unplug the smps from the board and blow the pins to clean them up and re-fix it and see it will work. if still it doesn't work try some other smps it will work! reply and revert back for more help with a vote!

Sony CPD G420... • Answered on Jul 24, 2010


is there a speaker or magnet adjacent to the monitor?

Sony CPD G420... • Answered on Dec 27, 2009


you have to open your monitor back. find a big part called flyback. there is two nossel in it. adjust forcus nobe litte bit for clear picture. this will definetly slove your problem.

Sony CPD G420... • Answered on Jul 19, 2009


bear.....my HMDA400 CRT Sony ..is doing the same thing....you need to discharge the CRT of static, then open the case and vacume the boards, heat sinks and every thing soldered down, strap grounds and the glass tube CRT.

Then run the self diognostic from the manual ..its simple and will tell you if the problem is major...usually it is a pwr issue...ie the pwr strip outlet may be shorting or pulsing erratical out put....bad strip......if the self diognostic shows the monitor is bad....best thing to do is replace the main monitor PC board to avoid testing other componants with speciality equpment you don't have! Last resort replace the CRT...the most expensive piece of the puzzle...ie the picture tube it self...

try a good known monitor on your system to be sure you don't have a software, or CPU problem or pwr glitch.....know this ,a black screen with no raster(lines, visuals) could be a sign of a faulty FBT(fly back transformer)...it happens with CRT units...sucks doesn't it...and you would be advised to" wear rubber gloves" to replace the FBT yourself....because of the dangerous voltage stored in the damn things.....its the current not the voltage that is deadly.....two hands on any circuit is not good....one hand at a time when taking parts out and putting them in.....get rid of rings watches and other conductive bling on your wrists and hands!....you will thank you me for that! good luck!

Sony CPD G420... • Answered on Jul 16, 2009


on your crt's manual menu you can resize the screen hit the menu button on your screen to begin or you can try the auto button

Sony CPD G420... • Answered on May 09, 2009


Is there still power to the monitor or is the screen just black? Do you hear any sort of sound when it goes black? Does the time the picture goes out vary or does it happen after say "X" minutes/hours everytime? Do you have any power saving software activated that would cause the monitor blank out? Check display properties? Sounds weird but have you checked for any viruses or spyrus nasties? If its hardware it could be many different things. Let me know what happens. Good Luck Tim

Sony CPD G420... • Answered on Mar 15, 2007


Monitor has gone to monitor heaven. time to do some shopping since repair not cost effective.

Sony CPD... • Answered on Apr 04, 2017


Go to the Optronics website and compare the pinouts and specifications. The easiest way to find out is to try it. However, you want to make sure the pinouts match.

Sony Computers &... • Answered on Feb 10, 2021


Unplug the keyboard from the mother board, re boot and try with a different keyboard. Probable liquid damage to the key switches.

Sony Computers &... • Answered on Jan 29, 2021


I have usually found it is better to format the hard drive and reload the operating system.

Sony Computers &... • Answered on Sep 30, 2020


the problem has to be from the display inverter board. The display inverter board is responsible from bringing display on the screen. Now since is no longer display, then it mean it has become defective.Get a philips screw driver, disassemble the unit in order to get to the display screen. You will see a kind of flex or wire connected to the screen. The board where the wire/flex is coming from into the screen is the display inverter board. The board is rectangular in shape.Remove the board, take it to an electronics parts store within your vicinity for exact replacement and the unit should display again.

Sony Computers &... • Answered on Aug 24, 2020


https://www.sony.com/electronics/support/televisions-projectors/kf-60we610/articles/S1Q0084 https://translate.google.com Le voyant de la lampe clignote Si l'?cran s'assombrit, que la couleur semble inhabituelle ou que le t?moin LAMP ? l'avant du t?l?viseur clignote, il est temps de remplacer la lampe par une nouvelle (non fournie). Utilisez uniquement un Sony XL-2100U ou XL-2100 de remplacement pour votre t?l?viseur. L'utilisation de toute autre lampe peut endommager votre t?l?viseur ? projection LCD. Contactez votre revendeur Sony pour une lampe de rechange. Cliquez ici pour t?l?charger des instructions ?tape par ?tape pour remplacer la lampe de votre t?l?viseur. Remarque: Avant de remplacer la lampe, mettez l'unit? principale hors tension. Attendez quelques minutes, puis d?branchez le cordon d'alimentation. (Le ventilateur de refroidissement continuera de souffler pendant environ deux minutes apr?s la mise hors tension.) Assurez-vous de laisser la lampe refroidir compl?tement avant de la retirer. La surface de la lampe reste extr?mement chaude pendant au moins 30 minutes apr?s la mise hors tension.

Sony Computers &... • Answered on May 03, 2020

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