Topic: Transfering vinyl via the SONY PCM-M10 - PROBLEM SOLVED!!!

[Jonas Karlsson]

][/color]Hi guys!

Just bought me a Pro-ject Essential turntable to transfer some old LP's digitally. Also to just enjoy the joy of analog!

When I listen to the LP's through my reciever and play it on my soundsystem it sounds great - although when I plug in my SONY PCM-M10 I hear a hum.

At first I thought it would be heard through the reciever as well - but using max volume there I heard nothing! The sound is noticable without putting a record on the tt.

Is there something I'm doing wrong? The tt is used via Speedbox and phonobox and, as I said, sounds great and with no hum via the reciever. Does the M10 need some sort of ground, like the tt uses via the phonobox?

Anyone else been experiencing the same? The sound is also recorded, so it's not just something I hear.

/Jonas, Gothenburg, Sweden

[Fatah Ruark (aka MIKE B)]

I record vinyl via the same method. Tape out of my amp > M10. No issues here.

Maybe try a better cable. Also can you run directly out of the phono preamp? That would eliminate a bad output from your receiver.

[ScoobieKW]

Line in

[Jonas Karlsson]

I'm using Line in and taking the signal directly from the phonobox. Also I've tried mulitple cables, but perhaps it's this I need to replace?? the 2 RCA - 3,5mm stereoplug adapter.

/Jonas

[H₂O]

Is the Sony on batteries or AC

[Jonas Karlsson]

I've tried both, also just bought a rca-3,5mm cable (without the adapter shown above) - and still get the hum only when connecting the turntable to the PCM-M10 through the pro-ject phonobox.

[Jonas Karlsson]

I can't understand.... it must be something wrong with the signal from the pre-amplifier (Phonobox) to the M10 - as I said: it doesn't sound like that on the stereo - at all! 

[George2]

I'm using Line in and taking the signal directly from the phonobox. Also I've tried mulitple cables, but perhaps it's this I need to replace?? the 2 RCA - 3,5mm stereoplug adapter.

/Jonas

Can;t do this. You need a RIAA phono preamp.
Connect the RCA outputs of your receiver (if you have them)to the Sony recorder

[yousef]

I think that's what the Phonobox is.

I would replace that horrible-looking adaptor with a decent quality rca>minijack lead as a first measure and see where that leaves you.

[EDIT]: apologies - just seen that you've already done that.

The questions that spring to my mind:

Are you using the same outputs from the Phonobox to your amplifier as you do to the M10?
Is the tt still grounded to something when the M10 is connected?
Have you tried taking the signal out of your amp rather than straight from the Phonobox?

[Jonas Karlsson]

Not sure if I can get a signal out from my reciever - I use this one:

[Jonas Karlsson]

Can;t do this. You need a RIAA phono preamp.
Connect the RCA outputs of your receiver (if you have them)to the Sony recorder

I use this RIAA phono preamp: + and plug + ground the tt into this and then put the signal out to my recorder, using either the "horrible" connector shown above, or a cable that has two RCA (left + right) in one end and then a 3,5mm stereoplug in the other. Do you mean that's not the way to go?

[George2]

Didn't see about the phono box previously. Have you tried hooking up a separate  ground wire between the turntable the the Phonobox?

[Jonas Karlsson]

Didn't see about the phono box previously. Have you tried hooking up a separate  ground wire between the turntable the the Phonobox?

ah, ok 

You mean the ground wire attached to the RCA's out of the tt is not good? how would I hook that up and from where? 

[George2]

For a lot of us older folks... our turntables had RCA outs and an extra ground wire to connect to the chassis  of the preamp.
Is that a ground lug on your phonobox? can't tell from the pic. Does it unscrew?

[Jonas Karlsson]

For a lot of us older folks... our turntables had RCA outs and an extra ground wire to connect to the chassis  of the preamp.
Is that a ground lug on your phonobox? can't tell from the pic. Does it unscrew?

Yep, on the left hand side you secure the ground cable that is connected to the RCA outs. Sounds a LOT worse when it's not connected.

The strange thing here though, is that I can't hear any noise at all when I listen through my reciever - but when I plug in my M10 I hear it all the time (and it's visible in the file I open on my computer too).