Question about Sony FD Trinitron WEGA KV-27FS100 27" TV
I have a SONY FD Trinitron which malfunctions when I try to change the channel or press any button on either TV or Remote. I have to hard reset it by unplugging the power cable and wait for few seconds and then power on which wors with the channel it left last time before it powered down. If I change the channel again it malfunctions like it hangs or don't increase volume or just goes to AV mode.
Please let me know what culd be the problem and how to fix it.
Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result might display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.
Posted on May 13, 2017
I am having the same problem with the "initial setup" screen flashing repeatedly/ intermittently. It's not a problem with the remote. In the research I have done online, it seems as though this is a common/known problem with the Wegas that will require a service visit. Apparently the problem is a defective receiver chip. The best thread I found is at: http://www.agoraquest.com/viewtopic.php?topic=15393&forum=34&start=0&select_page_number=1 I've seen some speculation that it is caused by windex or cleaning fluid dripping down when the screen is cleaned and corroding one of the internal components. That's not applicable in my case, since I always just clean the screen with a microfiber dusting cloth. So, I guess I will be calling a repairman and spending $$$ to fix as it is now flashing up so often as to be unwatchable. Ridiculous, I think, given that my TV is only 3 years old!!
Posted on Jan 11, 2007
SOURCE: TV won't turn on
this is a problem in one of the resistors in the high voltage end of the board these can be replaced but if you want to do it yourself you will need to buy equipment first i would get a pro to look at it for you and get them to replace as this will be cheaper than buying testing equipment but if you have equipment i can give you the service manuall to download and this will give you the schematics for your tell hope this is some help
Posted on Nov 19, 2007
I think I have the solution for you. I have the same tv and it does the
same thing when you turn on the power button on the remote when the tv
turns on you hear a click then the red light flashes about 5 to 6 times
then the tv comes on. on the remote there should be two buttons on top
of the remote one says power and the other one says system hit the
power button to turn on the tv when you hear the click and see the red
light flashing then hit the system button which will turn off the tv
then hit the power button again and it will turn the tv on without the
red light flashing it should work
Posted on Jan 10, 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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