SAMSUNG SP-P4251 TV turns on and off while watching tv

Your resolution needs to be reduced on the Android TV box. If you have a good quality computer monitor that has the same interface, use that to bring you Android TV box resolution down to 852 x 480 or less. Then save and restart with the older TV and it will work. That TV you have is an older plasma technology. 480p max. Here are the specs: https://www.cnet.com/products/samsung-sp-p4251-42-plasma-tv

what cables are you using to connect to the tv?

2/6 type

Does the sound cut out on all sources? Try to determine if it is the tv or the sound sourse.

Most likely the 22Uf 450v Capacitor has went out. It's on the Main Power Board. It's a decent sized cap, but not a huge one. Take to a repair shop if u want, or take the back off, plug in your hair-dryer & heat up that cap. Should have picture within 10-20 seconds of it getting hot. If it solves your problem, just find / buy that cap & solder it on. (Or have someone who can) Total parts approx-$20 (Including Soldering gun/iron)

The capacitor is about $3.

Here is the link where I viewed the specs on your tv. I do not see where you have the HDMI inputs.


http://www.bizrate.com/tv/samsung-sp-p4251-42-in-flat-panel-plasma-tv--pid70802962/

What component(s) are you connected to this TV?And what type of A/V cables are you using?
Does it only happen when you watch cable or directv or dishnetwork?
solutiondoct

same price or even more the inside screen is the most expensive part and when you add the labor it is vary expensive. You also do not know if the cicuit boards are cracked or not and may have other problems in the future.

Most likely there are some components in the sound processor or sound output board that have become thermo sensitive. The service rep would replace these boards as necessary.

If there is excessive heat there may be a fan that has failed. The service rep will know if this is the case when he opens the set. He would also have the temperature specs to be able to verify if the operating temperature is excessive or not. If there has been any overheating, chances are that there is heat damage.

Jerry G.

Sounds like a tuner problem on the main board, you can take the back off and make sure that the tuners are plugged in good, alot of problems with tuners are the grounds get cold solder