Question about Samsung LN32A450 LCD Monitor

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LN32A450 Samsung 32" 1 1/2 years old, and as you are aware from the many internet posts on this TV, I am experiencing the intermittent "SHUTTING OFF, TURNING ON" issue that seems to plague this particular set. It appears NOT to be an overheating issue as the set was left on yesterday for 10 hours. Then this morning it turned on, clicked off, came back on its own a minute later, then off and now nothing. It will not turn on. Customer Service has not been helpful. Rich

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  • cnm126 Sep 09, 2010

    Part is not available at either outlet.
    Apparently this is an issue for many owners of Samsung LN32A450 tvs. I believe it is covered under the "LEMON" law and I will seek to have the set replaced by Samsung. I'm sure you would agree that the power supply board should last longer than 18 months.



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It sounds problem with power supply board in your tv that need to be replaced because power supply does not turn On properly and system control chip of tv tries ti turn it On but fails
Replace power supply board in tv to solve the issue
If you are handy with electronics stuff fix then can do it yourself or ask local tv repair shop to replace power supply board in tv
Required power supply board is available with Shop Jimmy and Encompass on reasonable price
Click above links for board image and price info
Let me know if you have additional question

Posted on Sep 09, 2010

  • Shahid Electronics
    Shahid Electronics Sep 09, 2010

    Both sites offer power supply board and it is in-stock
    Check again Shop Jimmy and Encompass
    Usually this power supply got weak/ dried up capacitors in output section and start giving problem, replacement of capacitors in output section have fixed many cases
    If tv is still under warranty then call Samsung for cover



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Related Questions:

1 Answer

Why does the tv keep shutting off for no reason?

sounds like a capacitor problem or the panel for the buttons on the side of the tv. here is a photo of a blown cap. the one on the left. check that first. if no blown caps, then check the button panel.

Jul 23, 2014 | Samsung LN32A450 LCD Monitor

1 Answer

The monitor light red light that comes on and off when you turn the tv on and off is flashing and the tv will not come on.

Just fix this 2 years old TV today due to bad cap in the 5v power supply, I would suggest you to take a look in the power supply module first.
See my pictures here:
This is really bad that expensive TV failed due to cheaply made caps. I would not recomend SAMSUNG any more to my firends after seeing this.
Please post back what you find, it can be problem some where else also.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors:
Learn about bad caps:
Capacitors kit: he can make you a set of caps.
Or, 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.
Please leave rating if it helps.

Jan 30, 2011 | Samsung LN32A450 LCD Monitor

1 Answer

Our power went out for a brief moment and now the Samsung LN32A450 LCD TV we have isn't working and there is only a blinking red light on the bottom. Any suggestions?

Try unplugging and plugging it back in. Was there lightning, and was it attached to a surge protector?
Try pressing the power button repeatedly or even slapping the back of the tv (try googling this).
Good luck!

Oct 20, 2010 | Samsung LN32A450 LCD Monitor

1 Answer

Lines down screen

We have a Samsung LE32A457, whilst we were watching T.V tonight the top halve of the screen suddenly appeared with green lines halfway down the screen and that half of the picture was unwatchable, T.V is 2 years old. We have removed all scart leads but this did not help and the problem still exists, when shutting down a white horizontal line across the centre of the screen appears from this line upwards the picture is faulty. Any help or advice would be grateful.

Jul 08, 2010 | Samsung LE32A457 32 in. LCD TV

1 Answer

White ghost screen only 1/1/2 years old started going to white screen occasionally at 6 months old just for a few seconds now gives only white ghost picture.

It can be the ribbon cable on the T-CON board is looseor it is not getting 5vdc from the logic board to feed the T-CON board.

You will need to open it up and take a look inside. It may be still under warranty.

Service manual: megnev2% 20 & = & Category = & LN32A450 kat2 = all

Jun 06, 2010 | Samsung LN32A450 LCD Monitor

1 Answer

LN32A450 Flat screen has a shadow line about 10" long on the Screen The TV was purchased about a year and a half ago

if the line is vertical it means the LCD panel is defective or a contact to it is loose.

May 25, 2010 | Samsung LN32A450 LCD Monitor

1 Answer

My Samsung TV(LN32A450) does not turn on

If the standby light flickers off every 5 seconds or so, see the solution here

Feb 08, 2010 | Samsung LN32A450 LCD Monitor

1 Answer

My 3 year old shot water at the screen of my LCD tv. Showed the picture for awhile, then went white, now there are multicolored vertical lines. Will it dry out? How can I repair it?

lines in the screen means the screen itself is bad and would need to be replaced. No other way around it. If your TV is still under warranty you may want to contact Samsung and try to get it replaced thru them but if they see any damage they won't cover it so keep that in mind. Here is there tech support number:

1-800-726-7864 Mon-Sun 9am-9pm

Aug 08, 2009 | Samsung LN32A450 LCD Monitor

1 Answer

My tv shuts on and off every 5 min and turns back on by itself.

I had a similar problem on our 61" LED projection Samsung, It was about 9 months old, I called in the engineer (It was still under warrenty.), he updated the firmware on the TV. He connected his laptop to the TV, went on to Samsung,s internet site, downloaded and installed the latest update. We have had no problems since.
I hope this helps you.

Dec 22, 2008 | Samsung HCL4715W 47" Rear Projection...

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