Topic: Confused Over A/v Output Diagrams (Read 56 times)

tbirdturbo · « **Reply #15 on:** May 05, 2006, 12:30:00 PM »

also, do i still need to have the normal xbox a/v cable plugged in after doing this mod?>

carwarr · « **Reply #16 on:** May 05, 2006, 11:31:00 PM »

QUOTE(nachomans @ May 4 2006, 09:53 PM)

Thanks for the answers....
The soldering is perfect

The problem with noise, starts just when the output connector (gorund) from coaxial cable (xbox), touch the output connector of the receiver coaxial input...(ground)
Maybe using optical instead of coaxial could fix this problem, cause there is no direct contact with receiver and xbox ground...

tbirdturbo · « **Reply #17 on:** May 06, 2006, 07:20:00 AM »

QUOTE(tbirdturbo @ May 5 2006, 02:12 PM)

o.k. couple last questions, before i do this, the bottom diagram will work for a ntsc box correct? also anyone know how i can put led's on the front of case to show me which switches are off and which are on? and is 24 gauge wire o.k. for this?

bump, also do i need the xbox a/v cable plugged in after i do this?

carwarr · « **Reply #18 on:** May 06, 2006, 09:02:00 AM »

QUOTE(nachomans @ May 5 2006, 11:30 PM)

carwarr, yes...you are right....Im sure its a ground problem.
But when I say "coaxial", I was talking about "coaxial digital output", thats the "spdif" output from the diagram, anyway the ground from coaxial digital output is the same ground in all the xbox, so literally I m connecting all the xbox ground to the receiver ground through this cable....

I have no idea whats the impedance of the digital coaxial cable....
But maybe you have another idea to crate an isolation transformer....

I dont know if the adapter you post, could work....that adapter doenst change impedances?
Thanks!
If I connect a screw from the xbox or the receiver to "home ground" (ground connection in my house), the noise almost dissapear (or totally dissapear...not sure), but I dont know if I can connect a screw from this components, direct to ground....

To the other guy....with this cable (from the diagram) you dont need to connect any other av cable ( neither the original av cable)

nachomans · « **Reply #19 on:** May 07, 2006, 04:39:00 PM »

After sunday testing......

Ground in the xbox is 0V
Ground in the receiver is 3v AC (what the ****??)
So, this is the problem causing noise in the xbox video signal....

Any ideas?? What could I do to avoid this 3v difference?

Author Topic: Confused Over A/v Output Diagrams (Read 56 times)