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Details on how to replace an inverter board on hpf1503,15" flatscreen

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A new inverter board and backlight fluorescent bulbs will cost you $50 to $80. Uneconomical to repair, in my opinion.

Posted on Jan 04, 2009

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Lg Flatron-w1942T Problem: Black display plz help when i swich on the monior it shows video for single moment and then black .au io is ok my video card is ok


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Sep 01, 2016 | LG Computers & Internet

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Seiki SE50FY10 has sound but no picture, flashlight test shows picture. Not sure which board to replace


Back - light problem.Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis.If you wish to get some details; check the site linked here.Surf the site with patience.Pull up older posts.It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS].In such cases, the power supply board might need replacement.To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself.If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board.If this is the case, you have to replace the main board.

Jul 28, 2016 | Seiki SE50FY10 50-Inch 1080p 60Hz LED HDTV...

1 Answer

I have a hannsg hg216d monitor and i cannot veiw the right hand side i have tried everything to cure this problem but cannot solve it


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Jul 01, 2016 | Hannspree 22" Lcd Monitor Hanns.g Hg216d...

1 Answer

What remedy for an image that disappears after a minute?


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/

Dec 14, 2014 | Samsung SyncMaster 940N Flat panel Monitor

1 Answer

NEO LCD 40062FHD dump


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts. Do a search by type in the brand name of your device at its search box. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/

Jul 13, 2014 | Computers & Internet

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How do i test power on a dell flatscreen 1701fp. I have tested the power adapter and it is working and outputting the correct voltage. The monitor itself will not power on, I have disassembled and looked...


Since you cannot power on the monitor with the power switch on the monitor, then it can be the power supply or the logic board, or the inverter has shorted circuits so it makes the power supply go into shutdown mode.
This monitor uses 14vdc 3A power supply, so what you can do is to verify that you do have 14vdc at the DC input jack with monitor in the OFF mode, then try turn on the monitor to see if the 14vdc drops down to lower than 12vdc or so.
The inverter board has fuse also.
I do not have the pictures of the board for this monitor, but if you can post the pictures, then it will help a lot.
Does the inverter board look like this? http://www.badcaps.net/forum/attachment.php?attachmentid=12595&d=1259317517
At this point I will concentrate why the monitor will not turn on first, you can disconnect the ribbon cables attached to the inverter board and see if the monitor will power up.
http://s807.photobucket.com/albums/yy352/budm/DELL/

Aug 10, 2011 | Dell UltraSharp 1701FP 17" LCD Monitor

4 Answers

On my Acer AL1916W monitor the screen comes on for a few seconds then goes off but the power light is still green.


Hi.

That is often an inverter failure. Try turning off the room light, and point a flashlight sticking to the dark screen. If you can see a very faint picture, then the inverter has failed.
Before replacing the inverter, the PSU must also be tested. If the PSU does not supply power to inverter, then the PSU and not the inverter is the part to be tested.

If the screen is not dark, but there is backlight and no picture, then the problem is not the inverter. In that case check the source and the connection cable. If the cable is OK, then it is usually the main controller board inside the monitor. Once again the part must be tested.

Regards.

Ginko.

Mar 10, 2011 | Acer AL1916W 19" LCD Monitor

1 Answer

Have a dell E152FPb flat screen monitor which doesnt stays black even when on light is green. have taken back off but no obvious bulging etc. what can i try to get some life back imto it please


The backlight controler board is faulty. You can try replacing any capacitors in this board even if they look OK. If this does not work then you need to replace the inverter board with a universal inverter board - you will need to work out the wiring details though.

Mar 10, 2011 | Dell E153FP 15" LCD Monitor

2 Answers

I have a Samsung SyncMaster 203B flatscreen monitor that I have to keep clicking the power button on and off to get it to finally power up without quitting again. Is there a capacitor or something I can...


If not into lcd monitor "tear-down" and repair, just trade in for new. May only be 1 poorly soldered lead of some component on switch-mode supply board/ inverter board. Check for swollen electrolytic filter capacitors on same board. 12fixlouie

Sep 23, 2010 | Samsung Computers & Internet

1 Answer

Thanks


Without having it in front of me to test it's tough to tell. Sounds like a power supply problem, the shotgun approach would be to just replace all the electrolytics and see if that fixes the issue starting with the ones closest to the power input.

This is a VG800 right? Because the power supply and video boards are integrated on the monitor, so you can't really narrow it down between the power or video side of the board (you can unplug the inverter, but it sounds like you've already tried that). Since the power button is just a soft start button (the monitor always has power once it's been plugged in) you can try troubleshooting the parts of the board that are constantly energized and figure out where the power is switched on by the soft switch, that may be helpful.

Mar 27, 2008 | ViewSonic VG800 18" LCD Monitor

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