I have a Vista III Media box coming through , after a storm I heard a crack out by the area outside my window , where I saw the guy hook something up . Now after that my T.V. has a straight line coming through the middle and then after a few seconds , I have a picture but , it jiggles with lines going across so much that you can hardly see it , a few times it came back to normal , I'm lost at what to do , and would it have anything to do with Vista or is it in my T.V. ? Thank you so much
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Re: Panasonic 20 inch
The problem has nothing to do with Vista. The solder joints have come loose on your vertical output IC. This is very common in those Panasonic TV's. If you have experience in working on TV's then you can disassemble the set and resolder the pins of the vertical output IC and your picture will be fine. Otherwise, allow a qualified tech to handle it for you. It is a quick and simple procedure and should not cost too much.
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Replace the batteries.....use the matching process in your manual to make sure the controller and tv are matched up....check the tv settings by using your buttons on the tv...to make sure it hasn't been set to function manually...and not to respond to any remote controls....replace the remote controller....make sure the receiver eye or sound collection area of your tv is not covered by a drape or decoration of some sort...and clear and free of obstacles to communicate with the remote controller.....make sure the tv and cable box are correctly plugged into the electrical receptacle and to each other.....you may have to program your remote control to control your cable box too...instructions in your manual....or call the cable company and they will set your cable box controller to control your tv ......step by step over the phone.....it could be a high number of other things...like your neighbors remote interfering or the hamm radio guy down the street interfering.....but there are a few basic things to check out before calling a tv repair guy to come and get you working.
Unplug it and take the back off. Look too see if the fuse right next to the power cord is black. Replace it. If it pops again, you have damaged the board and need a repair guy. Look for any burnt parts before replacing the fuse.
My thoughts is that after all these years one of the solder joints has cracked and there is enough current that builds up that it will jump accross the crack and work for a short time and then the componenet heats back up and 'well' off it goes. 15 years old. - you got some great use out of this TV. Maybe time to look to get a new one - These types of TV's were only designed to work for 10 year and then throw them away. Be aware that the new ones are only made to last 3 to 4 years. I know - I don't like it either. They cost a lot more than that Panasonic did when it was new. Blessings, A/V Media Guy
The sound could have come from one of your power capacitors. You could tell if one of them is no longer operational by looking at them; they will be burned, or blistered, or will be bulging. If this is a CRT type of TV ensure that you only look inside if you are fully aware of how to deal with the lethal voltages that are stored on the inside of the unit.
Try unplugging the set from the AC socket, letting it sit for about 20 seconds, then plugging it back in. This allows the computer inside to reset. If that doesn't help, then it's time to have the set serviced.
The 7 blinks indicate a high voltage shutdown (high voltage exceeded 33,000V). This is usually caused by a defective regulator. Could you please post the exact model number (KVxxx) and I'll look up the part you will likely need?
There are some components it the vertical deflection amplifier area that are becoming thermo sensitive with age. It is also possible that there will be parts going off value in the power supply and other areas.
These problems are typical in these sets when they are aged. The cost of the repair may not be worth the investment.
You should take the set in to a service center for an estimate.
Power surge and lighting do a lot of damage ,you will be lucky if you only find the bridge rectifiers shorted(maybe just one) and a open fuse,that will give a place to start but expect more extensive damage.Be carefull