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Where are the vertical output Ics connections that need to be resoldered on a 60 inch mit. tv.

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Those IC's don't go bad so fast, Are you sure?Did you test them.? 1st check all capacitors & resistors in and around the ckt. The damaged part does not have to be in the same space and could be on the other side of the board.Check 1st, then replace.

Posted on Jul 26, 2008

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My tv has many lines in the screen. what kind of problem is this and what does it need to be fixed?


You may be suggesting a convergence problem..when the blue and red boxes will not center. You have bad grounds on the convergence ICs. Resolder or replace theses ICs. Or you may be asking about a problem in the vertical section. Vertical problems will appear as horizontal lines on the TV. In this case you have bad capacitors near ithe vertical IC and must also resolder or replace the vertical IC.

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My Zenith tv plays well, then the picture starts jumping and then picture goes off. Repair man has had tv for almost 2 months and can't seem to find out what is wrong.


Check the Vertical output IC and the Solder connections on the Vertical deflection yokes. Bad solder on the yoke plug connectors will cause the same symptom, and the Vertical IC may just need to be resoldered as thats fairly common with that model.

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This is a convergence problem that is being effected by heat. If you can solder, you should be able to resolve this yourself. Please be aware that there are potentially dangerous high voltages present inside the set even when unplugged.

Look for the large black ICs attached to a heatsink that will be marked STKxxx. These are the convergence ICs. Try resoldering the pins on these ICs and report the results. If the resoldering does not resolve the problem, the ICs may need to be replaced.

Keep us posted,
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Jan 12, 2009 | Philips 60PP9202 60" Rear Projection...

4 Answers

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This is a convergence problem that is either poor solder connections at the convergence ICs or defective ICs. These are largel black ICs attached to a heatsink that should be marked STKxxx. If you can solder, you can fix this yourself. Try resoldering the pins on the ICs. If that fails to resolve the problem, replace the ICs. It is possible that there will be additional components that require replacement as well. Please keep us posted on your progress. Also, since there are high voltages present even with the set unplugged, please be careful inside the set.

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1 Answer

I have a mitsubishi 60 inch rear projection about 10 yrs. old, the pict. will go out but sound will stay. Please point me in the direction of the problem


Try resoldering the vertical output Ics, Vertical yoke plugs that will usually fix the problem in that model.

Jul 26, 2008 | Projection Televisions

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No, but I do paid phone coaching for such things. Contact me directly and I'll steer you past the dangers and in all the right directions.


Mr Bob
www.imageperfection.com

May 20, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

I have no idea so if you can help thanks


The board on the left will have a series of small aluminum heatsinks with black ICs attached to them one of them will be the vertical output IC with about 7 pins on it. try resoldering those ICs and you should get the picture back as the vertical ICs will make the tubes cut off. The vertical IC should be marked on the board but solder all the ICs mounted to heat sinks on that board to be safe.

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1 Answer

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Open up the back, the convergence ICs are large and attached to a heat sink. They should be marked STKxxx. In most cases, replacing the ICs is enough. Sometimes the feeder resistor fails because of too much current draw. Change the ICs before looking for more parts. Also, try resoldering the ICs. Bad connections can cause this problem as well.
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1 Answer

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most likely the vertical output ic making the CRTs blank. Try resoldering the Output IC, if that doesnt work you may need a new Vertical IC

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1 Answer

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try resoldering the vertical output IC. have seen bad solder on that model make the picture tubes blank as a safety feature when vertical deflection drops out.

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