Question about Panasonic 50 in. Plasma TV

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Horizontal wavy lines going down the screen

What do I do to eliminate the lines?

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Replaced sd board

Posted on Aug 13, 2009

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Bad antenna connection get a rf boster

Posted on Jun 07, 2009

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Wavy lines 2007 philips


try repositioning the board into it's slot

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My samsung projection tv has blue wavy lines on top of screen, I adjusted convergence, the blue will not line up horizontally, is there a inexpensive solution?


It means one of the chips has a bad section inside it, both chips and maybe a resistor near them will have to be replaced, involves soldering as each has about 18 pins soldered in

Check with TVrepairparts.com who sells some kits for this by brand and model number

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1 Answer

Wavy horizontal lines across the screen


It sounds that the main power supply section to your TV has the fault. The horizontal thik lines that appears crawling down across the screen should be of video 'HUM'. Have you replaced the main filter capacitor at the power supply section? If not, replace it along with the main rectifier. The AC power is rectifed by a bridge and applied ot this main filter capcitor. It will have a capacitance value between 120 to 350MFD 450VDC. Check this section. Measure the rectifed DC voltage acorss this main filter capacitor. It should be around 350VDC, if your home power supply line is 220VAC. If it is 110AC, this DC voltage will be around 165VDC; and it should be. If rectified DC voltage found lower than the input AC voltage, replace the rectifier bridge. In some sets, this bridge section have four diodes. Some other circuits, a bridge rectifier stalk may be used.

May 20, 2012 | JVC AV-27050 TV

1 Answer

Horizontal wavy lines on picture


Sounds like the convergence has failed. This video gives more details

Apr 12, 2012 | Mitsubishi WS-55513 55" Rear Projection...

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Have Panasonic TH-50PX60U HD Plasma. Purchased


Filter capacitors (more than 1) in the main power supply

May 02, 2017 | Panasonic TH-50PX500U 50 in. Plasma...

1 Answer

Wavy horizontal lines on bottom of RCA 36in Truflat TV


The convergance or y-sus board can become faulty. The capcitors do tend to burn out. It is about a $250 + repair for this. Not all parts can be repaired, but they can be replaced. A capacitor tester and multi-meter are about the best tools for the job. If the price you get is over $250, I simply would replace it instead of repairing it..

Sep 13, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

Toshiba 50H82 with wavy lines at the top when in HD mode


Found this person on eBay who repairs the hyperboard for $75 quickly with very positive feedback.
http://myworld.ebay.com/kcarrigan/
I have the same problem and will probably send mine after the holidays.

Dec 03, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

Wavy lines


Are the wavy lines horizontal or vertical? If they are horizontal and up near the top of the screen it could be 60HZ interference from a power cord running over the cable from the DVD player to the TV. There could also an internal breakdown of the shielding by the power supply of the DVD player. If the lines are vertical it is likely the cable or maybe the input jack on the TV. Could be a number of things.

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1 Answer

Wavy junping horizontal lines


Requires the hyper board to be repaired . Has to be sent to Toshiba, unless you can change around 15 surface mount capacitors, They usually charge around 420 to 450 Canadian

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1 Answer

Sylvania 6427FF TV displays wavy verticle lines at top of the screen.


I would suspect defective filter capacitors in the sweep circuits as well as the power supply source voltages.

Aug 07, 2007 | Sylvania 6427FF TV

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