Question about Televison & Video
The lines are caused by inactive lines in the digital mirror device (DMD). Since they disappear when you press on the board then it's an faulty contact. Unfortunately in most DLP projectors the DMD is soldered to the image board thru a BGA connections - al the connections are behind the chip - so there's nothing you can do to them.
If you're lucky it's only the connector to the board on which the DMD is soldered is at fault - reseat it. If it's not it then it's unfixable, sorry, you need a new projector.
Posted on May 10, 2010
above is a service manual, it is not for your exact model but it will give you an idea, of how to troubleshoot and hopefully repair.
It sounds like you have a bad solder join, bad connectors, or a break in the PCB. You will have to troubleshoot, if you can. Try and localize the movement to a specific spot on the PCB, examine it with a magnifying glass and check, for dry or cracked joints, or traces, also ensure any plugs are secured.
So, it is nearly always my professional opinion that one should always get a "Quote" from the manufacturers recommended service center, DELL in your case please contact a local or head office and ask for a referral to an Authorised service center. I cannot stress how important that last point is. It is even worth the cost of shipping. you see an authorised service agent, will have trained staff, trained on their brand, also they have first hand access to parts, original parts. This will actually save you money and ensure you can actually get it back fixed. Of course asking for a "Quote" also gives on the option of repair or replace. Often my clients,do not go through with repair, unless it is moderate, but in some of the more costly jobs they see it, as do i, that a replacement, with a warranty, is a better option. As an aside here, one could then tear the TV down, and sell the Known Good bits. You'd be surprised who needs parts, i myself often must by from third party sources to effect a repair. So money could be recouped, somewhat,and help out someone else
Posted on May 10, 2010
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Posted on Jan 02, 2017
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