Question about LG 42PC5D Television
SOURCE: TV will not turn on
Ok, you stated that you get a green for a second and then a couple of blinks and then, it turns off. This rules out the power board but, its main control partner is experiencing some trauma. Normally in the plasma TV set, the green is a go but, if the PCB(Power control board), doesn't agree, the the power board will shutdown the entire unit after giving a few blinks. Its very important to remember that, the power board and the power control board are two separate circuit boards. In your case, the PCB is down and it will need to be replaced.
Please rate and god bless.
Posted on Mar 27, 2009
I own the same TV and had the same problem.
It's the #1 plaguing issue with flat panel TV made by Funai corp. Emerson is made by them.
Normally, when this happens, the TV goes into " Protection Mode " because of a failing circuit board.
The most common thing to go out on flat panel TVs is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board. But, I can't say it's 100% the problem because I can'tactually look at the tv over the internet. I can only make guesses with the symptom. I'm willing to bet you have the same problem like mine. One of six Inverter Transformers when bad on my Power/Backlight Inverter Supply Board. I replaced it and it works fine again.
You have a few choices:
1. You can try leaving the TV unplugged for 30 minutes so the TV can reset itself.
2. If by chance the TV is still under warranty, go that route.
3. If you have some electronic experience, if you can find and purchase a Service Manual at Tvtechcenter.com; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists.Usually, cost under $6. And most cases the new part cost less than $15. The service manual at the site is under LC320EM82S.
4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.
I hope I shed some light on the subject for you.
Posted on Jul 13, 2009
It appears like the 5VDC is low from the power supply adapter. This voltage becomes low due to defective capacitors inside the power supply.
Check the link below for more info.
Posted on Dec 04, 2009
Testimonial: "Thanks for the info....lots of help"
Ur power supply board is dead.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
Posted on Apr 07, 2010
Tips for a great answer:
Jan 03, 2016 | Flat Panel Televisions
Mar 05, 2011 | Curtis LCD2425A TV
Sep 02, 2010 | Panasonic PT-60LCX64 Television
Aug 31, 2010 | Sabre LCT371BKA LCD TV
Dec 04, 2009 | Audiovox FPE3000 30 in. HD-Ready LCD...
Mar 30, 2009 | Emerson LC320EM8 32 in. LCD TV
Jan 07, 2009 | Panasonic TH-50PX60U 50 in. Plasma HDTV
Jun 03, 2008 | Flat Panel Televisions
45 people viewed this question
Usually answered in minutes!