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Samsung 40" LCD I have a Samsung LCD that takes several tries to turn on before it starts. Sometimes it comes on and there are pink and white spots all over the screen. After turning it off and back on they go away.

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You have a bad control board. You can get one at www.partstore.com Cost should be between $130 - $200. If you are good with a screwdriver and like challenges you should be able to install it yourself. If you need help contact me and I will try to walk you through it.

hardrocko

Posted on Feb 01, 2010

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Posted on Jan 02, 2017

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MY Samsung LN-T4661F 46 Inch 1080p LCD HDTV is having several issues. For the last year or so, upon initial turn-on, it takes several minutes for the TV to turn on (about 7 or 8 beeps). When it does turn...


Taking several minutes to turn on problem is usually due to bad/unstable DC from the power supply, which can create a lot of strange symptoms. That willbe the first palce to look.
Please read mu guides for details and post back what you find on the power supply section first. We need to fix the delayed turn on problemfirst before trying to fix other symptoms.
http://s807.photobucket.com/albums/yy352/budm/SAMSUNG/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: http://interliquidparts.com/

Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Aug 01, 2011 | Samsung Televison & Video

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My tv keeps clicking on and off at startup. Sometimes taking 3-4 attempts to turn the screen on. Also, it will start without picture only sound


Your #1 suspect: LCD inverter, which supplies white light to the screen.

Your #2 suspect: the switched power supply, specifically 24VDC lead that supplies power
to the LCD inverter.

Either way, enjoy your 40-in set while it lasts, since its soon to be heading for a TV repair service.

Jan 02, 2011 | Samsung LE40R73BD 40 in. HD-Ready LCD...

1 Answer

Takes a while to start up and turn on. Sometimes purple pixels


you have a power supply problem, look for bad capacitors normally they are flat on the top, but when they go bad they get like a bubble on top. just replaced them. good luck

Jul 10, 2010 | Samsung LN-T4061F 40 in. LCD HDTV

1 Answer

I will be watching TV and the screen will go black, sound still coming out. If you turn it off for several minutes and turn it back on the picure is there. Sometimes this will happen several times within a...


the problem you are having is comon the inverter board is arking at one of the ballist transformers.
you could try opening the unit and make sure that all the pink and white wores from the transfomers are saperated. if they cross sometimes they ark over .. if thats not the case. the easiest cure is to replace the
inverter board about a hundred dollar item for partstore.com

Dec 21, 2009 | Emerson EWL3706 37 in. LCD Television

1 Answer

40" Samsung wont turn on


The gradual death you describe is probably caused by the decay of an electrolytic capacitor in the main power supply. It would require a capacitance meter with loss measurement to ferret out the bad part. Eventually, the supply will fail to start at all and leaving it on will cause the weak part to decay faster.
You might want to do some advance research on the cost of a replacement supply which you can probably replace on your own. These are normally on a separate board that will be visually related to the AC coming in and will have larger than average components on it. For safety, leave the AC disconnected overnight before you start doing any surgery; the power supply can deliver a nasty shock if not allowed to discharge.

Jul 10, 2009 | Proscan PS27500 27" TV

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Liitle white dots on the screen


Seen an LCD like this before, sometimes it is from the display not repairable

Feb 01, 2009 | Samsung LE40R72BDX 40 in. HD-Ready LCD...

1 Answer

Gray spot s on sony display


SOUNDS LIKE YOU HAVE A BAD LCD PANEL. TAKE IT TO A SONY AUTHORIZED SERVICER.

Nov 29, 2008 | Sony BRAVIA KDL-40S2010 40 in. LCD...

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