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Samsung tv ln32a450 wont power up - Samsung Televison & Video

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Posted on Jan 02, 2017

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SOURCE: samsung ln32a450 power on problem red light is

I had the same problem with my LN32A450. The red standby light would flicker off every 5 seconds or so and the TV would not turn on. The problem was with the power supply board. When the light flickered this way, the standby power read 5.05V on the voltmeter instead of the required 5.2V. The problem lies in one of the solder joints in the standby power regulator.
You can fix this yourself if you have enough skill. Pull the board and reflow the solder on the SMT component joints with rosin (or your favorite flux, but clean it off afterwards). The SMT components are on the bottom side of the board. I ended up resoldering the joints from the first stage step down converter all the way to standby power filter cap and the feedback circuitry, including the main power regulator and everything in between, thru-hole parts too.
Check for bulging caps while you are there and replace.

Posted on Mar 13, 2010

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1 Answer

Samsung TV


Based on the information you described you may have a tuner
circuit problem or power intermitent faikure fron the power supply module.

Nov 02, 2012 | Samsung Televison & Video

1 Answer

Tv went dead


You need to inspect the power supply first, look for blown main AC fuse and any bad caps with domed tops, see example of failed Samsung TV here:
http://s807.photobucket.com/albums/yy352/budm/SAMSUNG/

Also read my guides:
Basic troubleshooting guide here:
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
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, long life rating such as PANASONIC FM or FC series.

Jun 23, 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

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

2 Answers

Problems with internal speakers of the Samsung LN32A450 TV


Problems with internal speakers of the Samsung tv Can I buy replacement speakers and install it myself.

Apr 30, 2010 | Samsung LE40R72BDX 40 in. HD-Ready LCD...

1 Answer

When I turn on my LN32A450 TV it flashes to black screen for a few seconds for the first 15 minutes or so. I have tried unplugging for 30 seconds as mentioned in the manual but no help. After it warms up...


This is probally a fix for a repairman. Probally a bad video card or power supply board. It is probally not going to be cost effective, You are probally best off buying a new one.

Mar 04, 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

Connect the receiver to a Samsung LN32A450 TV?


I have a model LN32A330 which is probably has connections similar to yours. I'm not home right now to check whether it has a digital output, but I know for sure it has an analog audio output available. You can run that output to an available auxiliary or a/v source input on the receiver and that will work for you. That's how I have mine connected. If the set has a digital output and the receiver offers digital inputs, that's another connection possibility. The digital output on some brands of TV only works in conjunction with the tuner, and may not always have output. The analog method is guaranteed to work.

If this solution has helped get you on the way, please take a moment to give it a fixya rating. Thanks for asking here!

Feb 09, 2009 | Onkyo TX-8511 Receiver

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