I am inquiring for an apex 43 inch tv that someone posted in the ads where i live and they said it has a small white line going through the middle of the screen. They said that someone told them that they need a convergance for it. What is this convergance and how do i fix it or get it?
Convergence is when you aim all three of the projectors, your tv has three, so that the images they produce all line up with each other. This usually doesn't generate a white line across the middle of the screen though, there is a button on the front panel of your set that automatically converges the three projectors, you can try using that.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
If this is the clear smooth screen, yes you can
go to your local glass & paint store & have a new
protective screen cut for that size. If this is
the screen with thin lines etched in it from
top to bottom..vertically is the Lenticular
lens & no there is no way to repair, you must replace, with new or used. Go to ebay under
projection tv parts see if you can locate someone having your size for sale & bid on it or email them to outright purchase it.
If you mean a horizontal line going left to right across the center of the screen and it's intermittent then a tech should be able to fix that one on a service call fairly easy... The vertical IC in that unit, IC N301, is a TDA8351 and it most likely has some poor solder connections due to heat stress - we call ring cracked - thus the problem sometimes corrects itself temporarily.
While he's coming out anyway ask him ahead of time to bring the following:
Two resistors 1.0 ohm 2 watt
and a cap 3300 microferet 25 volts
and his DMM & ESR meter.
Ask him to ESR test C863 this is a high failure cap and test R370 & R371 in the supply for change in value.
Shouldn't be too much to repair - and simply ask ahead of time what they charge for a service call, and if they think they can correct such a problem (ring cracks on the solder connections of your vertical IC) on-site.
If you're not too sure where to begin your research for a qualified shop try NESDA at:
This is not an "STK" problem. Your problem is VERTICAL. You need to check your vertical chip for damage CN301 and check around it for any bad parts or loose connections. I've seen loose connections on the chip itself cause it to self-destruct.