Question about Samsung LN40A450 LCD TV

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No sound on tv hd ln40a450 samsung - Samsung LN40A450 LCD TV

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IF TV IS WELL CONNECTED AND THERE IS NO SOUND ON ALL INPUTS REPLACE MAIN BOARD

Posted on Jul 30, 2010

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Posted on Jan 02, 2017

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1 Answer

Tv is black but on


the main board probably has a crack in solder joint some where.

Feb 17, 2016 | Samsung LN40A450 LCD TV

1 Answer

My samsung lcd 42 inch tv remote doesn't work. I can't find my owners manual to get he code


If the remote is the one that came with the TV, there is no code. Try new batteries in the remote, or try a remote from another Samsung TV.

Dec 24, 2010 | Samsung LN40A450 LCD TV

1 Answer

Screen is black with sound and hdmi inputs working


Tv turn on now,have flashes a pictures few sec.than dies have sound left only?Yes,than those 2 long one to right and one to the left boards call the LCD inverter boards are dead.These 2 long LCD inverter boards help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those refurbishes 2 long LCD inverter boards for the replacement.

Dec 06, 2010 | Samsung LN40A450 LCD TV

1 Answer

SAMSUNG 46 LCD SLOW TURNING ON CLICKS ON AND OFF SEVERIAL TIMES BE FORE COMMING ON SEVERAL MINUTES and geting slower ANY HELP PLEASE


Hi,
It seems problem with power supply board as there are few electrolytic capacitors in output section that would be leaky/ dried up, replace them to solve your tv problem.
Please note, if you are handy with electronics stuff repair and an replace parts in circuit board then can attempt to do it yourself because it requires soldering work with proper tools OR call local tv repairman to do this job for you.
Check following image of power supply board of Samsung LN40A450, capacitors have been marked that needs to be replaced.
Hope these info will help you.
Thanks.

welcomejee_12.jpg

Nov 30, 2010 | Samsung LN40A450 LCD TV

1 Answer

LCD TV samsung LN40A450 doesnt turn on


hi,
your lcd ip board (power board) capacitor had already exhusted.
got to replace the ip board.

Jan 18, 2010 | Samsung LN40A450 LCD TV

1 Answer

I have a Samsung LCD TV, model # LN40A450 with a PC input. I connected my Dell Vostro 1310 laptap to the PC input and I consistently get a "Mode Not Supported" message on the TV screen. Why? I had a...


You TV will only accept specific signal formats (modes) through the PC input. Check you user manual for compatible modes. You then need to set screen 2 (your laptop VGA output) to 1 of the compatible formats (PC display settings). A common format/mode example would be 1024 x 768. Try it out and see if you get a picture. You can then increase the resolution 1 at a time to find the best format/mode for your purposes. I hope this was of some assistance.

Dec 29, 2009 | Samsung LN40A450 LCD TV

1 Answer

Samsung 40" lcd analoge picture fine . freeview picture fine but picture from scart is black and white . sound ok on all formats


REPLACED MAIN BOARD
Manufacturer Samsung LN40A450 Part Number BN96-07891C Description ASSY PCB P-MAIN;BN94

Nov 03, 2009 | Samsung LA40A450 40 in. LCD TV

2 Answers

My tv wont turn on red light keeps flashing


there are two 1000uF 10V bulging capacitor in powersupply board.
replace with 1000uF16v or 25v.you will save $200.

Oct 30, 2009 | Samsung LN40A450 LCD TV

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