TV/VCR/Stereo Troubleshooting/Samsung HD TV (2)

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Normal Pic  

Distorted Color
Distorted Color  
Hi, Allan.  I'm also an Allexpert in the clock category.  I have 2 Samsung HS flat screen tv's, which I will repair myself:

1.  Model LNT4661FX/AA, S/N AHBB3CFP601908X, VERSION SS03, June 2007.  On days with certain ambient temperature/humidity, the unit is powered on and a buzzing sound comes from the lower left location and the picture will not come on or quickly blacks out.  Many years ago I was a tech and would test circuits by either using a heat or freeze source to diagnose some problems.  Therefore, I found I could do a "jump start" by pointing a hair dryer in the lower grill area in the back.  Once it starts, no problem.  I suspect a high voltage arc on a circuit board or a component.  Can this be repaired or do I need a new board, and do you know which one?

2.  Model LN46A550P3FXZA, S/N ALXK3CUQ810670B, Version CN09, August 2008.  The ON/OFF switch does not function, but no problem, as the remote ON/OFF functions.  The problem is the color.  The fill-in  coloring is faulty in that there is a constantly active red distortion within the outlines of all objects.  I have attached 2 photos, one from a good TV and the other of the distorted color of this TV.  I  would suspect a complete board would have to be replaced.  If so, which one?

Thanks for your help.

Answer
on the lnt4661 can you send me a picture of the tv with the back off? i want to look at a few parts inside the tv.

on the ln46a550 high odds are this is a bad LCD panel and cannot be repaired. i have seen the main board do this a few times but in most cases the LCD is bad.

Allan

TV/VCR/Stereo Troubleshooting

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Allan Wainwright

Expertise

I have over 22 years of experience repairing and training technicians on how to repair TVís, working on the phone all day with techs all over the world. I specialize in home service of Projection, DLP, LCD and plasma televisions. I can fix most issues right on the spot and I am very good at answering questions and troubleshooting on MOST makes and models. IF YOU ARE IN ORANGE PARK,FL OR JACKSONVILLE,GREENCOVE. THEN I CAN FIX YOUR TV IN YOUR HOME. CALL ME AT TV REPAIR, BIG SCREEN TV REPAIR, IN HOME SERVICE www.tvdoctor.us

Experience

In order to properly assist you, it is very important that you provide the Model number of the television and the year it was manufactured. You can find this information on the back of the TV. Please also let me know if you are trying to fix the unit or just need to know the cost for repair. If you have a digital camera, and know how to solder and use a meter, I can help you fix your unit in most cases.

Education/Credentials
I have over 22 years of experience repairing and training technicians on how to repair TVís, working on the phone all day with techs all over the world. I specialize in home service of Projection, DLP, LCD and plasma televisions. I can fix most issues right on the spot and I am very good at answering questions and troubleshooting on MOST makes and models. IF YOU ARE IN ORANGE PARK,FL OR JACKSONVILLE,GREENCOVE. THEN I CAN FIX YOUR TV IN YOUR HOME. CALL ME AT TV REPAIR, BIG SCREEN TV REPAIR, IN HOME SERVICE www.tvdoctor.us

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