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Re: Arched or bowtie effect
You have bad convergence Ics they are mitsubishi part # 267P150010 Generic part is STK 392-570 and they are at locations Ic8c01 and Ic8co2 on the deflection board. If you can solder you can take these out replace them and fix your problem for about 100 dollars. Best of luck
That means there are bad solder connections on the ics it will be back and sooner or later it will not just "pop" back into place. The sooner you fix the problem the better off you are. Hope this helps.
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Unfortunately from your description this a complex issue and cannot be adjusted out. The cause is a shorted winding in the horizontal section of the yoke, or the high voltage capacitor has decreased in value causing the hourglass effect, depending on the problem will dicktate cost to repair, I suggest an estimate before a decision is made, and if the set is more than five to ten years old consideration should be given in a replacement.
Several possibilities, if you use a set top box to get your signal like a cable box or satellite receiver they will have settings that effect picture size. It could be a high voltage problem inside the TV causing an effect called blooming, if that is it you can usually change brightness and or contrast and see the picture get smaller and larger. I don't recall that set having any customer settings that could give that symptom.
Its magnetic effect on picture tube. Power Off TV for 20-30 minutes then turn it On, hope problem will be resolved. Please also check and remove any speaker or some thing have magnet near by TV. If color spots are still there, picture tube need to degaussed / demagnetized.
hi there.im not familiar wih the model,but your fault lies in the east west correction circuit.excessive width usually means a short circuit e/w modulator diode,with the curved sides.normally,a narrow picture with curved sides points do dry jointed/open circuit polyester capacitor.if a firm slap has an effect,then its most likely a dry joint which makes for an easy life.the vast majority of east west correction circuits are based in tle line output stage,and generally not complex to fix.hope this helps,regads,steve.ps. look for s/c by 299 and by 228 diodes,check those..
I have the same problem, it is called the "bow tie" effect, I read in a forum a couple of years back it is because they started computer sodering instead via humans and it was not successful during that time. I bought mine in 02. I was hoping to find a picture of the the board and the specific soder joint on this forum. I hate to pay alot for a tech, (specially since it was mitsibitsi's poor craftmanship) and a 65" is not something you throw in the truck and take to them. Good Luck.