Date   : Mon, 31 Jan 2005 20:01:50 +0800
From   : "Tom Drage" <drage@...>
Subject: Re: bbc tapes

My cable works fine between two cassette players!

-----Original Message-----
From: Majordomo List Manager [mailto:majordomo@...] On Behalf Of
Jonathan Graham Harston
Sent: Monday, January 31, 2005 1:26 AM
To: bbc-micro@...
Subject: [BBC-Micro] Re: bbc tapes

"Tom Drage" <drage@...> wrote:
> I have a BBC and I have made a 5 pin DIN cassette cable as
> follows. 1 to 3, 3 to 1, 2 to 2. I can record to cassette fine,
> but I can't seem to play back my programs. Any ideas?
 
I would have thought 1-1, 2-2, 3-3 would be correct.  Anyway, my
recollections is that audio DIN connections are imbalanced, that
is, they are not symetrical around the middle pin. 
 
Checking the User Guide confirms this, and also shows that the BBC
outputs to both pin 1 and 4, so it could be that the recorder you
are using only takes input on pin 4, so won't see anything on pin
1. Try ensuring all lines connect straight through:
 
          7 motor 1
          3 input     ------------- 3 Sound out
    BBC   5 nc        ------------- 5               Tape
   Tape   2 0v        ------------- 2 0v          Recorder
  Socket  4 output    ------------- 4 Sound in
          1 output    ------------- 1 Sound in
          6 motor 2
 
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