I have tried everything, any ideas from here please! This has been going on for months in my clients room. Here's the link of the video, only 30seconds long.

http://www.youtube.com/watch?v=s2b4SvAgXDs


It goes through a ton of stuff, but basically what you need to know is...

- All that is connected is DVD-player and Projector, using S-VIDEO cable
- Tried both on same socket (one in top plug, one in bottom plug) with cheater plugs (no grounds)
- Tried both on same socket (one in top plug, one in bottom plug) without cheater plugs (projector grounded, no ground on dvd-player)
- Tried turning off all-dimmers in the house.

- Projector at 'home screen' does not do this, only when displaying a source
- Sources have been changed out and verified

Results:
Only thing is that when I plug them into different outlets throughout the house I get different locations and intensity of the lines blinking.

My Conclusions:
- can't be the projector cause it doesn't do anything on the home screen
- can't be the source cause I've tried sources I KNOW are good
- MUST be the power?

First off, I'm at work, so I didn't watch the video.

Have you tried hooking up a portable DVD player running off battery power? That would definitely narrow the problem down.

If that works, then I would look at putting the sources on some sort of good quality battery backup. That would effectively seperate it from the house power system. A good quality conditioner might fix the problem as well.

battery backup, I like that.. haven't thought of doing that yet. I'll try that today as well. just a UPC from somewhere work fine?

wouldn't you know it...

Took it home (exact cables,projector, and dvd-player), plugged it in and it works fine.

While I was there:
- turned off EVERY breaker in the house except the one the Outlet was on
- plugged everything into the outlet and we got the same lines.

Guessing something else on the circuit was pulling too like a fridge,ac, or something we couldn't find maybe???? Good chance its a fridge. The house is HUGE. Would this account for it?


Fridge or not...
So how do I fix it?
1. Power Filter?
2. Video Ground-Loop Isolator?
3. Ferrite Clips?
4. Battery Backup everything and run through that?

Sounds like dirty AC, UPS should fix your problem. UPS not a Battery backup, There is a difference. BTW, It could ba anything from fridge in the house, To bad transformer, to Ham radio operator next door, to manufacturing plant down the street, you get the point.

Will a UPS fix this problem?

Is this the same thing as a Power Filter? is there anything else that I might need? Isolation devices? Power Filter like a monster power filter or something like that? Or can I just get an APC UPS from Best-buy. That would be great.

You could try a newer higher quality power conditioner/suppressor, filter but that doesn't really fix the problem. That will suppress it.

I would suggest unpluging everything, plug in the power for the projector and one other source. Connect the speaker wires, and turn on the equipment plugged in.

If there is no lines or hum, then connect one cable at a time. If the hum and lines starts with one cable or when you plug in another source. You have narrowed the problem to a device or cable. I would first replace that cable to see if thats the problem. Also check satellite or a cable box on the same line can bring in problems to. Ensure it is running through the power conditioner.

From my experiences it can be in the cabling of the walls to. If a nall or drywall screw went through the romex and is touching any two wires it could be begin there.

Definitely dont use a ground lift becuase of liability reasons for you and possibly killing your clients in the future.

Have you tried running an extension cord from your equip to another location in the house on a different circuit? That could let you know if the power feed is causing it or your equipment and its wiring.

Please keep us updated on this. Save your receipts for the power conditioner. Because it could make it worse, or maybe it will suppress it enough for a happy client. If all else fails blame the electrician or drywallers!

I'm about to head over there now.... I bought this

http://www.apc.com/resource/include/techspec_index.cfm?base_sku=BE750BB&total_watts=200

Does this function as a "power conditioner"? My plan is to plug it in and get it charged, then unplug it to make sure the bars dissappear and prove without a doubt that it is the power. (which I've already proved by bringing the devices back to the shop and they work fine here). I'm HOPING that this will work even when plugged into the wall to "condition" the power. Is this correct?

welllit looks to have some filtering but no conditioning. APC does offer some killer solutions but I've never used those models, just the rack mount versions. It could work but it looks like more of a computer version. Meaning not specifically made for high end sound and video applications. You can get some pretty good deals on panamax (which I recommend) or you could do a monster power center. Starting prices on those are about $200 for a pretty decent one.