Derek92994's 700 Ser II White Oak conversion

[laatsch55]

Yep, that would be it darc..

 

[J!m]

One thought on the need for connecting earth between units: the Puoneer has a narrow blade plug, yeah? Try flipping it to reverse the hot/neutral and see if that changes the hum/buzz situation.

I’m with Gepetto that a ground between them shouldn’t be needed.

 

[derek92994]

Ok negative in earth of power socket, positive on ground/chassis of component.

When amp/pre connected together
Pioneer 1.1mv
PL P3600 -7.5mv

When disconnected both are zero.

 

[derek92994]

I did these tests with no earth wire and when they were connected it was with the rcas from pre to amp

 

[laatsch55]

How about the WOPL?

 

[laatsch55]

By itself...

 

[derek92994]

Tested wopl on its own and meter was all over the place from 0mv to -8mv

 

[laatsch55]

K... goin to bed Darc, cold , early mornin comin..

 

[derek92994]

Thanks for your help bud
When i run the wopl on the spare speaks, volume pots up? And no input right?

 

[derek92994]

Also should I continue to run the 2 amp rail fuses?

 

[laatsch55]

Right....but be careful ...you might have to short the inputs, meaning shorting plus to minus on each channel....try it without it with pots at minimum, then bring up the pots slowly...if it gets real noisy, short em...

 

[laatsch55]

Also should I continue to run the 2 amp rail fuses?

Yes.....

 

[derek92994]

Thanks bud, sleep well.

 

[laatsch55]

Will do, Love ya Darc!!

 

[derek92994]

And thank you Joe for your time. We will get this sorted.

 

[derek92994]

Joe and Jim, will there be no harm to the pre or pioneer amp if I continue to run the earth wire?

 

[J!m]

I’m not sure.

Did flipping the plug do anything?

 

[derek92994]

One thought on the need for connecting earth between units: the Puoneer has a narrow blade plug, yeah? Try flipping it to reverse the hot/neutral and see if that changes the hum/buzz

Jim, the pioneer has a 3 prong plug which can’t be reversed. I also should mention that the pl p3600 pre runs off a step down transformer to convert from aus to usa voltage.

 

[derek92994]

I dont think it will hurt, I know the earth wire should not be needed and the symptom is strange. But I have run over 100 hours like this while the wopl was awaiting repairs. Its the only way to get rid of that slight buzz.

 

[derek92994]

I could try reversing the prongs on the pre?