The problem in your tv is not external.
The problem is in the power supplies internal filtering.
On the primary side of the power supply main board you will find
a large electrolytic capacitor very near the fuse and the primary transformer( the small one). Next to this capacitor you will find a
large 5 watt diode.( black with a silver band at one end). Next to this you will find one lone 1/4 watt resistor. This resistor in conjuction with large electrolytic capacitor is responcible for the internal filtering of the high voltage side of the board. As your unit heats up( anywhere fron 5 to 30 mins) you will notice horizontal
flickering and prior to that red or green or even purple pixelation.
Check this 1/4 watt resistor for dark discoloration and or a bad solder joint on the solder side of the board. This resistor
is directly responcible for controlling the bias current to the high voltage regulators for the 160 volts DC. At no time should you handle or troubleshoot this board with the line plug in.
Even when this board is powered down that capacitor still holds a charge for up to an hour and can knock your you know what
in your sock. If you do not feel comfortable please take the board to someone else. Hope this helps.
I had the same problem. They told me it was a noisy signal or power. I cleaned the power with a line filter and unplugged the cable. None of this worked.
I sent the TV back and am still waiting after 3 months for a new one.
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I HAVE THE SAME PROBLEM. TV WAS FINE UNTIL A FEW MONTHS AGO. OF COURSE ITS OUT OF WARRANTY. FROM WHAT I HAVE READ, AND BEEN TOLD, IT IS THE POWER SUPPLY TO THE UNIT. IT IS DEFECTIVE, OR IT OVERHEATS AND TRIES TO SHUT DOWN. A LAW SUIT IS IN PROGRESS AGAINST WESTINGHOUSE TO RESOLVE THIS MATTER. KINDA REMINDS ME OF THE XBOX 360'S WHEN THEY CAME OUT. ALL YOU CAN DO IS TAKE IT IN FOR SERVICE. OR, YOU CAN KEEP TURNING IT ON AND OFF, LIKE I DO. I HAVE HAD THIS TV ON ALL NIGHT BEFORE WITH NO PROBLEMS. AS SOON AS I START CHANGING STATIONS, OUT IT GOES. GOOD LUCK. WESTINGHOUSE WILL NOT EVEN EMAIL ME. I HAVE TRIED SEVERAL TIMES TO CONTACT THEM. I HAVE HEARD FROM THE LAW FIRM IN CALIFORNIA THAT IS GOING AFTER THEM. GO ONLINE, AND JOIN THE CRUSADE.
Hi Replied you on premium post as well. Please change TV color system to AUTO to see jumping free picture. If Bose is either on PAL or NTSC color system, TV will show correct picture and color automatically.
it needs the hyper module replaced
might as well have em do the stk packs too
its too old to be a lemon
the part that was replaced was not new it was in someone elses tv and had problems there too
the trick is to find someone that will fix it so it lasts