I need to repair my samsung tv as it won't turn on.

SOURCE: TV not turning on.

Mine was doing that and I ordered a replacement power supply board for it and now it work. It's fairly easy to replace.

http://www.partstore.com/GetModel.aspx?MfgName=Royal+Philips+Electronics&BrandName=Philips&ModelNumber=37PF7320A37&page=16

SOURCE: blue light flashing 4 times

Sounds like it started "Protection Mode" because of a failed electronic part inside the TV. I don't have the actual Service Manual for your TV to tell you what the code means. Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The common part to go bad for flat panel screens circuit board that powers the screen. Most manufactures call it a Backlight Inverter Board.
But, I can't say it's 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. You can again try leaving the TV unplugged for 30 - 45 minutes so the TV can discharge and reset itself.
2. If you have some electronic experience, 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 red light blinking codes, circuit diagrams, schematics, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15 by searching on the internet with the part number.


I hope I shed some light on the subject for you.

SOURCE: Samsung ln t4665f : Power Light On , No Picture : Clicking Sound

there is a soloenoid type switch that fires the TV up this has failoed. its like a neon or fluoresecent tube that has a faulty starter switch light tries and tries but never quite makes it when it does get going it has that purple smear in the tube. that is the simple explanation for your problem. part is about $60 labor is unkinown as i am not in USA but looking at some of the rip off charges I am glad i dont have the bill

Sonny Berry

• 8617 Answers
• Posted on Aug 28, 2009

SOURCE: Samsung HLP4674W - changed bulb - still no picture - lights flash

If the lamp has been replaced I would think the Lamp ballast would be most likliest followed by the color wheel and then the Digital board. You can get any part needed for your model at www.tvrepairworld.com just leave them a email they respond quickly.

SOURCE: When I turn the tv on, no picture and only the stand by timer

Sound to me like your video amp failed on the C board. This board connects directly to the back of the CRT tube. It actually has the letter C on it. The video amp is IC702, PN: TDA6108JF. You can locate a vendor for the part by googling the provided PN. This amp is fairly cheap and not too difficult to replace if you can use a soldering iron. However, you must apply heatsink compound or it will over heat and fail more quickly. You should be able to get a tube from the same vendor as the amp. I hope this was helpful, best wishes.