Question about LG 32LC2D Television

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I own an lg 32lc2du television. The power light blinks but the backlight does not come on.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: Lg 32LC2DU-UE lcd tv sound and backlight but no video

NOTE: my answer is generic and would apply to any LCD TV with such symptoms.

There are two boards in most LCD TVs (including the LG 32LC2D) that are the most likely source of this - the LCD timing controller (T-Con or LCD controller) and the main processing board, which outputs signal to the T-Con.

In isolated cases the problem may as well be the LCD itself, which has a few tiny ICs on it - some on boards and some literally embedded in the LCD material.

I have seen all three cases and there is no easy telling which one you have by just knowing the symptom.

Statistically speaking, I'd say your first candidate is the T-Con board (6871L-0821A or 6870C-0060G in your case), then the main board (likely 68709M0041E / 33139D3026A but could be other) and lastly an LCD deffect.

There are different ways to try and narrow down the probelm, but they all require at least a multimeter (ohm-metter and volt-meter) and some additional explanation.

Given eBay has T-Con boards starting around $30 with delivery it is often easier to just order and try out.

Before ordering any parts, though, make sure to check if they are the parts your TV has in it!

Many manufacturers change things like LCDs and controllers for them and mark that with a minor letter or number in the model and some manufacturers don't even bother to change the model number!
I have seen Dynex and Insignia models with *completely* different contents!

Posted on Jan 23, 2010

  • 8457 Answers

SOURCE: my LG television when powered on the red light

Power supply board is dead.Replaced the power supply board will solved this problems.Tries Websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Posted on Mar 15, 2010

SOURCE: LG model 32lc2du power issues

Please see my answer for similar question at
http://www.fixya.com/support/t4745426-power_blue_light_but_screen_black

The 32lc2du inverter is 6632L-0208B and I have seen units where it was the power board and others where it was the inverter.

Hope this helps!

www.coppelltvrepair.com

Posted on May 12, 2010

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First: service manuals http://elektrotanya.com/?q=showresult&megnev=lg&megnev2=32lc2du-u3%20&kategoria=tv&kat2=all
Second: most failure in power supply module is due to bad caps with domed top, you should inspect for that first, main AC fuse for main power.
Did you take out or look at the power supply yet?
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.
Please leave rating if it helps.

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1 Answer

LG model 32lc2du power issues


Please see my answer for similar question at
http://www.fixya.com/support/t4745426-power_blue_light_but_screen_black

The 32lc2du inverter is 6632L-0208B and I have seen units where it was the power board and others where it was the inverter.

Hope this helps!

www.coppelltvrepair.com

May 12, 2010 | Televison & Video

1 Answer

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Unplug replug about an hour later,if the same problem than ur backlight video board it dead.Need it replaced.

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