Question about LG 50PK550 50 in. TV
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Unplug power cord- safety first!
check powersupply- top center right is p.s.
top left side of powersupply you'll see 5 capacitor 3300uF 10V.
see any pop up on top? replace it All with same rate or 16v is O.K.
do not use temperature rate 75c. Use 105C.
if you know how to solder. you save $300 least!
Posted on Mar 15, 2009
Sounds like it started "Protection Mode" because of a failed electronic part inside the TV. When this happens, the TV will keep turning itself OFF or will not turn ON at all. This keeps the other parts inside from being damaged. Most likely the TV has a power supply related problem.
The common part to go bad for flat panel screens circuit board that powers the screen itself. Most manufactures call it a Backlight Inverter Board.
But, I can't say what is 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptom.
You have a few choices:
1. Best thing to do, if you can find and purchase a Service Manual over the internet; 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, schematics, test points, and part# lists.Usually, cost under $20. Its the best repair guide material for fixing TVs. And most cases the new part cost less than $15 by searching on the internet with the part number.
2. 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 21, 2009
replace the power supply it is a simple fix if you can hear the relays click 2 times or more replace the power supply board you can order them from UNION Electronics ask for kyle when you call ,,if the power supply isnt the problem then it will be the control board located below the power supply board I have repaired a few of these the voltages are marked on the power sullpy board conections be careful there is a VERY HIGH AND DANGEROUS VOLTAGE FEEDING THE X AND Z BOARDS DONT REMOVE THIS WITH SET PLUGED IN IT IS HOT ENOUGH TO BURN A HOLE IN YOUR SKIN AND EVEN DO MORE DAMAGE TO YOU if your not sure what to do Call LG they have a good support theam there
Posted on Jul 24, 2009
Tips for a great answer:
Dec 19, 2012 | Televison & Video
Dec 09, 2012 | Televison & Video
Dec 01, 2012 | Audio Players & Recorders
Oct 06, 2012 | Office Equipment & Supplies
Jun 14, 2012 | LG 11,000 BTU PortabAir Conditioner -...
May 14, 2012 | LG 42PG20 42 in. Plasma HDTV
Sep 16, 2011 | RCA 20F420T 20" TV
Sep 04, 2011 | Frigidaire FEX831F Top Load Stacked Washer...
Press EQ master on the front panel in power off state to demonstrate the function in the display window. To
cancel it, press POWER or EQ master again.
May 29, 2011 | LG LFD750 Shelf System
Jan 12, 2011 | Televison & Video
Jun 23, 2014 | LG 50PK550 50 in. TV
790 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: