You posted "do they look like jail bars ,running from top to bottom." regarding a problem of having vertical white lines. Do you know what this is or how to fix it? I have a Samsung DLP about 3 yrs old. Thanks
- 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.
I looked up how to fix red horizontal lines on a Philips flat-screen tv. It turns out it needed the Y buffer upper replaced. I am not sure if this problem would be similar but it might help. I am also searching how to fix a fuzzy screen on a DLP tv. Hope you find what you need.
This is a possible fault in the power supply, and can be a problem with some decoupler caps on some of the boards. The vertical bars and unstability are usually attributed to having high frequency noise and or clocking pulses crosstalking on to the power distribution lines that run through the boards. This can be switching power supply noise, or cross-talk from clocking pulses.
Another thing that can cause your described fault is unstable clocking between the devices that are reading and writing to the data busses. There are a number of data busses running through the set for the boards to be able to communicate with each other.
The tech will use the process of board swapping to service the set, and then do the adjustments as necessary to make sure the new boards match up.
Yes... DLP sets are fairly expensive to service!
This is my personal opinion. If the set is out of warranty, I would change for a Plasma or LCD set. If you compare the performance of these to ther DLP, the difference is very big. From what I am seeing from a service point of view, the DLP's are lower in reliability.
Your posted description is a known (common) problem for the JAV-27230 and should be easily repaired. The vertical capacitor (C424 - 100uf/35V) needs to be replaced. It is relatively cheap and can be bought from any electronics parts store.
in some instances, it could be the vertical IC starting to fail or even a simple case of cold solder.
As always, extreme care when repairing the insides of a TV unit since HV can still be present even when off and unplug. A little knowledge of electronic components and use of a soldering iron should do just fine. Should you not be comfortable doing a DIY, then perhaps you can ask the assistance of a buddy who has some soldering experience.
Hope this be of some help/idea. Pls post back how things turned up or should you need additional information.
It sounds like a vertical deflection problem. You mentioned you had a white HORIZONTAL LINE in the middle of the screen. If this line runs from left to right across the screen it's in Verticla deflection. If it runs from top to bottom, it's in Horizontal deflection. I am assuming the problem is a Vertical deflaecion problem. The repairs necessary are most likley to replace the vertical capacitors or the verticla deflection chip.
NC Electronic Mills, Wyo USA