Question about Mitsubishi CS-35505 35" TV

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Vertical Sweep I have the same problem described by uncledj on my Mitsubishi CS-35505. For a few months there were vertical lines at the top of the screen, then last week I had only the bright horizontal line accross the screen. After turning it off and back on again, there was a clicking noise, the television shut down and will not power up. Is this problem worth the cost of repairing?

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Re: Vertical Sweep

The vertical IC is bad this was caused by bad capacitors in the vertical amplifier output circuity.If the ic is only replaced it will most likely fail after a few days. I did this repair and after the caps were replaced still works 2years now.

Posted on Nov 11, 2007

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Re: Vertical Sweep

If the quality of the picture was good before it failed it is worth repairing,replacing the vertical Ic should take care of your problem and for a service technician is a fairly easy repair and they usually dont charge too much,maybe 100.00 to 150.00,if you take the set to someone is less the charge but I know is heavy and it might not be an option,shop around for the price of an estimate in your house.

Posted on Oct 01, 2006

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This fault is normally due to Vertical Sweep Out Ic trouble. You have to open the back cover of your TV, and have to pull the main board out. Locate the Vertical Output Ic. It is easy to locate it. There will be four wires going to the deflection yoke assembly [the coil fitted alongwith the picture tubes' neck]. Amoung them, two will be thick, and is carrying horizontal sweep signals. The other two wire are comming from vertical sweep section. Follow the wires and find out from where it comes from the main board. Somewhere near it orginates from the main board, you will see an Ic usually screwed into a heat sink [ a metal plate or so]; and it is vertical output Ic.

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Take all precautions when we works with an elctrical equipment. Keep away children and never allow even stand beside you while you are working, and let an adult beside you as a precaution. Never use metal chair. Do wear a plastic of rubber shoes. If can, keep matted the floor also with carpet. Ok
Wish you success.
Gopakumar G.

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1 Answer

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1 Answer

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You might be able to take care of it yourself,you are corret when you said no vertical sweep,if you can identify the vertical IC it will be easy,you are looking for loose conections but by now it might have a bad vertical Ic and it needs to be replaced along with the safety resistor that power the IC,the ic should be mounted on a heat sink and the resistor should have low resistance,very straight forward repair and while you are there make sure and check for overheated areas and loose conections specially in the power supply , horizontal drive circuit and convergence IC's.Be careful you still have high voltage witch can be dangerous.

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