Question about Zenith P42W34P 42 in. EDTV-Ready Plasma Television
The 42 inch plasma has a vertical black line that comes and goes. Only hook up to direct tv receiver (Video/s-video) connections. checked all lines (disconnected receiver and cable/black line on screen. help!
The ribbon is usually the problem but it's to hard to soler back so just take it to a repair shop and pay 350 to have the board replaced. it's a common problem. just got ours back...good as new.
Posted on Aug 23, 2008
Could be a loose ribbon cable on a buffer board, or one of the buffer could be going bad
Posted on Feb 17, 2007
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Posted on Jan 02, 2017
Two large black lines is a different problem
thin black wavey type line that comes
and goes sometimes reaches the bottom
of the screen sometimes has white
streak at bottom is parisitc interference
stray signal not returning to ground
can be caused by cracked solder
joint somewhere loose cable connection
ground loop Basically it is an ac signal
that is not returning to ground because of
a marginal filter capacitor or any ground
return path. some power plug can be
reversed to solve when the plug is reversed
and the ground side of the plug is actually
connected to earth ground Best way to
trace it is with a good scope where you
can see the noise signal on the pulse
Posted on Dec 31, 2007
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