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[yiancar]

its basicly a beogram 2000. yep ivegot a converter :). should i mess with its wiring or the problem maybe on the preamp?

[peranders]

You must somehow break the ground loop. Your RCA terminals must not be connected to the chassies.

[yiancar]

any other things i should check for a ground loop?

[peranders]

Is the TT chassis going through the adapter in someway?

[yiancar]

through? in what way?

[peranders]

If you measure the resistance between your ground in your phono plugs and the chassi in the TT, which value do you get, high or low resistance?

[yiancar]

ok fixed the ground loop, it was the wire going from the rca to the input pins. now my toroidal transformer is causing hum. i have it a good 5cm away from the power supply part of the board but i can still hear it. perhaps its a cheapo transformer? any suggestions for a fix and a quality transformer ?

[peranders]

Good the you fixed the ground loop.

Is it mechanical noise from the transformer?

[yiancar]

what do you mean mechanical?

[peranders]

Is it vibrations or can you hear in your speakers?

[yiancar]

i can hear it in my speakers, changes with the orientation and proximity of the transformer and the board

[peranders]

OK, then you have magnetic coupling. A small toroidal transformer would probably do the trick.

[yiancar]

i already have one in an aproximate distance of 5 cm ( the outer from the pcb) and its still picking up noise. maybe it is missfunctional? btw i can hear the noise only with the volume of my amp at 3;4 and above

[peranders]

You say noise, you don't mean hum? Does it go away if you move the transformer?

[yiancar]

hum i mean yes. yes woth the trasnformer further away, ( out of the case) the hum dissapears. is it normal fora such a transformer to need so much distance?