technics cass deck m215 line to din question

Archived from groups: rec.audio.tech (More info?)

this old deck has a 5 pin DIN socket on the back. Input is switchable
on the front panel -either 'line '(rear phono sockets) or 'MIC/din'
(jack plugs on front of decks and the aforementioned rear DIN)

When i tried to connect a second cassette deck to it (going into the
Technics) for copying, there was gross distortion caused by signal
overload. I suspect that the deck is running at MIC level whenn in
position MIC/DIN and line level in 'phono'position.

I want to make use of the DIN socket for line-level input signal.
What rating of attenuator resistor should I use? just thought I would
post here before experimenting in case anyone has done a similar
conversion

Thanks, Ben

Archived from groups: rec.audio.tech (More info?)

On 29 Jun 2004 06:24:10 -0700, reverend_rogers@yahoo.com (b) wrote:

>this old deck has a 5 pin DIN socket on the back. Input is switchable
>on the front panel -either 'line '(rear phono sockets) or 'MIC/din'
>(jack plugs on front of decks and the aforementioned rear DIN)
>
> When i tried to connect a second cassette deck to it (going into the
>Technics) for copying, there was gross distortion caused by signal
>overload. I suspect that the deck is running at MIC level whenn in
>position MIC/DIN and line level in 'phono'position.
>
> I want to make use of the DIN socket for line-level input signal.
>What rating of attenuator resistor should I use? just thought I would
>post here before experimenting in case anyone has done a similar
>conversion


I think there's an impedance difference as well as a level one. Best
results may be from using the phono ports, even if it does involve
some re-plugging.

Archived from groups: rec.audio.tech (More info?)

I just put a couple of 120 ohm resistors between signal and grounds
and that produced an acceptable result.
I also downloaded the owner's manual from here:

www.support.panasonic.co.nz

thanks for the responses
Ben

reverend_rogers@yahoo.com (b) wrote in message news:<1cfa6663.0406291627.3f370028@posting.google.com>...
> Laurence, thanks for your input (pardon the pun!)
> I have read elsewhere that it may be necessary to insert , say, a 100K
> resistor in series and add a 1K to ground. (line to mic level)
> However, I wonder,since the deck is stereo would I compromise that by
> effectively linking both L and R channels to ground?
>
> Laurence Payne <l@laurenceDELETEpayne.freeserve.co.uk> wrote in message (snip)>
> > I think there's an impedance difference as well as a level one. Best
> > results may be from using the phono ports, even if it does involve
> > some re-plugging.
>
> I know I can use the phonos; What i had in mind was basically avoiding
> replugging .The amp only has one cass input so i wanted to connect the
> technics to the amp with phonos (L R in/out) and connect a 2nd
> playback cass deck to Technics' DIN socket, bypassing the amp
> altogether. Just an idea.....
> Ben