[sdiy] LXP-1 mod?

[Magnus Danielson]

From: Michael Zacherl <sdiy-mz01 at arsprototo.at>
Subject: Re: [sdiy] LXP-1 mod?
Date: Sun, 11 May 2003 14:36:36 +0200

> Hi Magnus,

Hi Michael,

> Magnus Danielson wrote:
> 
> > I quick look in the schematics gives that you can apply this patch without
> > any cuts. You take a 100k trimpot with one end wired to pin 1 through a 470k
> > resistor, the other end is connected to pin 28 through another 470k resistor
> > and finaly the center tap is wired to pin 27 through a 1M resistor. This would
> > complete Note 1 in BBs datasheet (Note 2 and Note 3 is already applied BTW). 
> 
> Are you comparing the schemos to something like 
> this http://www.audiochips.net/data/pcm54.pdf ?

Right.

> How much less distortion would this correction 
> effectively bring?

I have no *measure* and no estimate either. Your milage may vary and most
probably due to how "off" it is to start with.

> > I could get messy. Somebody who has a
> > spare LXP-1? ;O)
> 
> Well, I got two ... but ... well ... uhm ... I 
> trust you but ... well ... no. ;-)))

Why do you think I put a smiley on that one? ;O)

> > Let's put it this way, the PCM54 is on page 1 of 5 sheets ;O)
> > 
> > I am lacking the EPROM image... so if somebody has it to share... ;O)
> 
> *YAC*  (yet another clone).

Ehum... I think not. At least not anytime soon. I would need to clone the
Lexichip, which is possible (I have a rought knowledge of what's in there).

Cheers,
Magnus