Question about Televison & Video
I have a Sony TRINITRON KV-27HSR10 TV set which works but the picture flickers pretty badly during power up. It's been checked before by an electrician and he said a capacitor must be replaced. Specifically, a 10uF 250V electrolytic capacitor.
I have a soldering iron and want to replace it on my own. I don't remember which capacitor it was on board, but I'm guessing the capacitor should be leaking or bulging.
I wanted to know which capacitors will I need to discharge in order to safely work on the board? And will I need to discharge the TV tube?
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Posted on Jan 02, 2017
I think that you will find the picture tube to be more expensive than a replacement TV, if it is still available (unlikely). That being said, it is also unlikely that the tube itself is the problem, The more common problem is the horizontal output transistor or the flyback transformer. Either part should still be available for a reasonable cost. Check with a local servicer for the part numbers and costs. These are common parts.
Posted on May 19, 2009
have over 10 years experience in electronic tech
I know this isn't what you want to hear, but the problem you've described can't be fixed with troubleshooting. Your TV will have to be repaired. There is a part that has developed a defect and needs to be replaced. If you're still in warranty, the TV will be repaired at no charge to you. The warranty would likely be at least one year from the date of purchase from the manufacturer. If you purchased an extended service plan they will repair the TV at no charge as well.
If the TV is no longer in warranty, it will likely cost a minimum of $150 parts and labor. This is assuming that you only need one circuit board or small part. If the problem is more than one of the circuit boards, the price of repair could go much higher.
I hope I've provided you useful assistance and that this information allows you to make an informed decision as to how to proceed from here. Please be sure to vote on my response. I hope I've earned a good rating from you today.
Please let me know if I can be of further assistance.
Posted on Jul 11, 2009
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