Need help with my TV and PS2 install !!
 

Hey all. I have posted a little bit about my install in a different thread, but here's a little background. 600W inverter, with a 15 " lcd flat screen with a PS2. I finally got everything done tonight and turned it all on to check it out. TV is clear in the video screen waiting for a signal in. When i turn the PS2 on, i get a small amount of electrical interference. It's just enough to annoy. I tried plugging the PS2 into the wall outlet with the tv on the inverter. Same thing. I would plug the Ps2 in the inverter, with the tv on the wall outlet, and my noise goes away. I have not yet tried putting both on the wall outlet with boat wires. I went with the cheap RCA's from walmart, which may be the culprit, not sure yet. I also separated the power cord for the tv from the rca's by about 3 feet, no difference. What do you guys think, is it a possible noisy inverter, or should i bank on the cheap rca's. Looking for input.

p.s. Would the wall outlet be that much cleaner than the inverter out that cheap rcas would not make a difference with wall out, rather inverter out?

start with the patch cords.

i would start by reading the specs on the inverter. 600 watts is only 5 amps... normally enough to do what you are doing but having said that, a lot of inverters, especially the cheapo low power ones, SAY 600 w but in little tiny print say max intermittent and only 400 continuous. also... the small ones are, in fact noisy as they are not normally modified sine wave type...

I believe you posted a thread on this subject once before and I responded with thoughts about a pure sign wave inverter verses not. Sounds like your TV needs something other than a modified sign wave which is what your inverter is probably putting out. Look for a pure sign wave inverter and your problems should go away.

Here's some specs on the inverter i bought. I got it on sale at West Marine, it was opened once and brought back............
It's a 600 PRO watt made by Xantrex. On the specs, it says it is 600 watts max. continuous power, and 1200 watts surge capacity. It is a modified sine wave output. I did not pay much attention to the modified or non modified sine wave output. Even though, i would think that if the tv has a clear blue screen, meaning no signal in, it would stay clear also when the video input was active? I know what a sine wave is, when they are saying modified, what is different, are they clipping it? My buddy has a set of 20' monstor cables that i will try first, other than that, i guess i will get a different inverter. I saw a nice one at best buy, it was either a 1000 or an 800 watt. But it was pricey, something like $180 bucks....

This is the one i looked at located at Best Buy.

http://www.bestbuy.com/site/olspage....=1091101114748


May have to pick up this one if my current inverter is going to give me problems....

the xantrex stuff is top notch. thats not your problem

What do you think it is?

Zantrex stuff is top notch and they do have a seperate pure sign wave product line for a reason. Read the description of the Prosine models (for sensitive electronics). Zantrex make modified sine wave units like the one you have. Modified sine waves are either clipped or chopped, or both. Clipping and chopping either cut off the peak or limit the duration of a sign wave. If a certain circuit with in a module is depending on an un-interrupted frequency and or a peek of 177 the modified output is not compatible. I had the same problem with electronic control of a coffee pot. You can Google Pure sine wave inverters. I found one for $150 300W. I beg to differ with Steve considering my experience this could well solve your problem. Try one and let me know. I am ready to learn more.

Well, i have a list of stuff to try that i came up with. I'm an avionics tech by day. Shadetree mechanic by night. So i'm going to try everything under the sun short of a different inverter. Will let you guys know tomorrow hopefully.

Ryan

http://www.donrowe.com/inverters/puresine_600.html

This is what i found, may end up going with it. Time will tell.

The other thing to look at is what volatge the TV is OUT of the ocnverter box. Mine in my PQ was a 12v TV so I just cut the converter box off the cord and wired it into the braker panle and have eliminated the inveter alltogethr for the TV and DVD player.

SOmething else to check :D

i'll look into it, i know the PS2 is 8 point something volts. For some reason, i remember the tv not being 12 either. But will look into it.

true enough about the mod sine wave but having said that, i have many in service of each type w/ no interference of any kind... and we aren't talking hi end complex electronics here... just your basic transformer power supplies... i could be wrong but it sounds like a " like frequency" rfi issue... you have another device "broadcasting " and your device is listening... but who knows... im betting its something simple like a bad ground somewhere. with your backround you know how to chase this stuff im sure.

Well, sure enough, the t.v. does run off of 12V. Little oversight there...... Either way, here's what i found. I got a high quality shielded video cable for ps2 video input to tv. Tried, and the noise was gone. I thought, cool, that was easy. So for the hell of it, and so i could show my buddy the noise with the junk cables, i plugged the walmart garbage back in. Tried it, and still no noise. Well, wtf............

I did find the boat that night with two dead batteries, as i had left the stereo system on accidentally, just not audible, for 24 hours. Left my batteries at about 8 volts. oops. So i had a charger on it. I ended up putting the hight quality cable back in, and leaving it as that. Even once the batteries had sufficient voltage to run the inverter by itself, i tested, no noise. So, don't know? Don't know if the noise is gone for good or not. Time will tell, i am doing an overnighter on it this weekend, and will be running the equipment. Thanks for the input guys.

-Ryan