Question about Samsung LN32C450 32 in TV

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Samsung ln32c450. Previously: Turning itself off/on, a.k.a "power cycling". Now: tries to come on but only a brief momentary white flash on the screen, then nothing. Remote detector circuit seems to be working fine and +5vsbp seems to be working. Thanks

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Are you getting backlights but black screen? You need to find out if you are getting PSON (on signal (3.3~5vdc) from main board to turn on the 24vdc power supply for the inverter board), you also need to find out if the inverter board is also getting the BLON (backlight on, 3.3~5vdc) signal from the main board, this signal and Dim signal may be routed through the power supply board).
Please read my guide to understand how it works.
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: 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 and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Posted on Mar 12, 2011

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I have a Samsung LN32c450 model LCD HDTV and it does not turn on. The red led in the front is on but no display or nothing. I read online a lot about the bad capacitor syndrome a lot of Samsung TV'


When you change the caps check the polarity.Check the diodes,
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two legs no 3 legs like the transistors get a voltmeter and read the voltage if are there, check the screen voltage.

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I`m looking for an lcd panel for a samsung ln32c450


Samsung and for that matter most will only give a part number and price to authorized service centers---

If the panel is shattered or screen damaged forget this idea as the cost of the panel usually exceeds the cost of the unit.

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What's your problem?set goes off then on itself


A set turning itself off is common - the controller has detected a fault that may lead to more damage, so it shuts down. It is very uncommon for a set to turn itself on again.
A momentary shutdown could be caused by a loose or defective power cord. You may also have a power supply problem such as failing capacitors.

Nov 14, 2011 | Samsung PS42A410 42 in. HD-Ready Plasma TV

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I suddenly unplugged without turning off my TV and now it will not turn on


Try leaving it unplugged for several minutes (15-20) and then try powering it back on.

May 04, 2011 | Samsung LN32C450 32 in TV

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My tv just turn's itself off and doesn't come back on for ages!!!


have a reputable shop check the "known to fail "power supply capacitors....they may not be filtering the power correctly to the main control board....that would be the next suspect

Jun 07, 2010 | Samsung LN32C450 32 in TV

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