Question about Hannstar iF-281DPB LCD Monitor

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Screen is all white, changed the main board but no help.

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Change monitor with friend. If its the monitor that sounds expensive.(signal board or panel)

Posted on Aug 02, 2014

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Posted on Jan 02, 2017

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Samsung smart tv no picture and sound. Replaced T-CON and Main Board. Same result. Any ideas?


did you change power supply? how many times does light flash (red) you didnt change the power supply did you use a vom on connections?

We Are Here To Help !!!
Donal Deane MCSE,ASE,CPO

Aug 18, 2017 | Samsung Televison & Video

1 Answer

No picture but have sound


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://electro-medical.blogspot.com/
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.

Dec 29, 2015 | LG Electronics 50LS4000 50" LED LCD TV,...

1 Answer

My Alcatel OneTouch Pop Icon screen just turns white after i just changed the digatizer please help


The cable to the screen connector needs to be seated all the way on the main circuit board. It cannot be cocked to one side or not pushed in completely.

Nov 15, 2015 | Alcatel UNLOCKED OneTouch Pop Icon 7040T...

1 Answer

Center white vertical line on my t v screen "


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Check the 4 pin connector goes to it deflection yoke; from the main board for any loose solder terminals at the main board side.

Jan 22, 2015 | LG Televison & Video

1 Answer

No display blank screen


hi sir. the problem is the flex wire of the display on the handset unit and this is common. you have 2 solutions. first change for a new the handset unit. or open the handset, remove the main board, separate slowly the display screen from the main unit. whit a hot air gun, give some hot to the white flex on the main board side(not too much or you can destroy that). and tighten a little with your fingers on the flex and the main board. This should paste the flex.

Nov 09, 2013 | Panasonic KX-TG5631 Cordless Phone

2 Answers

Hannspree 28 Inch Lcd Tv Model Number HSG1075


Check its Chroma section circuit for fault. Most possible cause is damaged chroma IC.

Aug 09, 2012 | Hannspree Televison & Video

1 Answer

Sharp Lc-26sb24u white screen with sound


You will get a white screen when you unplug the t-con from the main board. Doing so removes power to the LCD panel. Verify that all of your voltages from the power supply are correct. If they are, I'd look at the t-con board. It sounds like there is a problem with the t-con that is pulling down the main board.

May 11, 2012 | Sharp LC Televison & Video

1 Answer

Display in faded condition , cant see any thing but only white light.


check flex part linking screen board to main board. most probably, it is a loose flex plug. it happens all the time otherwise, change screen board.
Regards

Dec 09, 2009 | Nokia 3230

1 Answer

I hv 6500s. Its radio and bluetooth does not work and sometimes a white blank screen appears while working. I hv tried restoring it but it dosent help.


for the radio and bluetooth,you will need to flash the phone and for the white blank screen,you will need to change the cord or flex which connet the main board to the sub board.problem solved.But are you a technician?

Nov 02, 2009 | Nokia 6500 Slide Cellular Phone

2 Answers

White screen only, can hear sound


The wire from the main video board to the LCD screen goes bad after a while. I don't know where to find a replacement?

May 20, 2009 | Westinghouse SK-19H210S Television

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