Question about Televison & Video
Picture is thin line across screen
Problem in vertical circuit--look for the vertical chip to have bad or broken solder connections....see typical one (usually mounted to metal)......
usually anything from 7-13 pins and almost all are flat like this one-secured with screw at top to metal plate.
Posted on Nov 04, 2012
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Posted on Jan 02, 2017
SOURCE: Red Line across Screen
sounds like you have a vertical sweep problem. Where the fault lies cpuld be the vertical output IC the verticle b+ feed, could be the capacitors in the vertical circuit?? Your gonna need to troubleshoot thr vrtical circuit if your not a tech thin my advise is to take the set to a pro for sn est. Good Luck
Posted on May 22, 2006
The vertical output IC has stopped working. The vertical output IC is the part that drives the coils in the yoke that spreads the picture up and down. This could be because it has cracked loose from the board (solder joints) or it simply burned out. Sometimes a bad pump-up cap will cause the vertical output IC to short out, and when the IC shorts out it often opens up a small value resistor next to the flyback. This is a relatively easy thing to repair. A qualified tech will be able to tell exactly why the vertical output has stopped working and repair it for you.
Posted on Aug 25, 2007
intermintence in vertical IC deflection its a job for experienced tech need to look for that circuit and do fine job resolding that IC
Posted on Apr 01, 2008
This is an easy repair if you've ever soldered and would not be too costly for a repair shop to do it for you. The problem is a bad Vertical Output IC (usually mounted on an aluminum heat sink with the part on it labeled LA78?? ) and 1 or 2 bad capacitors. Some times you can even fix the problem by re-soldering the contacts of the IC- To find the IC follow the 4 wires that come from the Yoke (which is a contained coil of wires slipped over the neck of the picture tube(s)) back to the board. 2 of the wires go to the horizontal o/p and 2 to the Vertical o/p the thinner gauge wires are for the vertical.
Posted on Sep 28, 2009
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