Question about RCA F32450 32" TV

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RCA F32450 Turning on the tv one day all I get is sound and a wide band of picture @ 1/2" in height across the screen. Th emotrher board was just changed on teh set @ 6 months ago.

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All vertical perimeters in service mode .

Posted on Aug 14, 2008

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Posted on Jan 02, 2017

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Sound like your Y-Sustain board has one foot in the grave. The Y upper buffer and Y lower buffer boards go when the Y Sus Goes too...

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My 3-year old 52-inch Toshiba flat panel TV (Model # 52RV53U, Serial # AM409000295) developed a display problem (purchased Aug. 2008, manufactured July 2008). Vertical multicolored lines appeared on the screen just left of center. The band of thin vertical bars is 5.5 inches wide. The lines are about 1/16-inch wide. They are stationary, always exactly in same place. They over-ride any other picture on the screen (no transparency). They are there all time even with no video inputs to the TV after the unit is turned on. See picture #1. The TV works well in every other respect, but, obviously, it is annoying to watch the picture with the color band blocking about 1/6 of the picture.

Further info, pics, comments, and updates on my Facebook page at

http://on.fb.me/mVwhVN

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1 Answer

Wide vertical bands of color through the viewing area. The sound is fine


One of your "X" buffer boards is defective. In Panasonic plasma tv's they are located at the bootom of the set and connect directly to the plasma diplay panel via a thin ribbon cable. The board you want to replace will be directly in line with the discolored vertival line in the picture. The part number is on the circuit board and usualy starts with "tnp..." or "txp..."

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1 Answer

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disconnect the x and y sustain boards from the power supply. then check the flex connector to the screen and reseat them. check connections on c boards at bottom and screen connectors. reconnect the power supply only after all flex cables are reconnected or charge from supply will burn flex cables. if still preent replace correcsponding c board. if still no fix replace panel.

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1 Answer

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1 Answer

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Jul 09, 2008 | RCA F32450 32" TV

1 Answer

RCA F32450 32" TV wavy picture


Most RCA repairs on your chassis series require a new IHVT,
AKA flyback transformer . Inside an Integrated HVT are diodes
that can degrade and give the appearance of a bad cap....
Of course, you should check the electrolytics with an ESR
meter, just in case....

xformer part # 257805 or Asti 2078........T.

Nov 04, 2007 | RCA F32450 32" TV

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