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Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 22:59
by exxos
Icky wrote: 25 Sep 2018 22:55 No - not crap. Its fixed the sound. We have sound.
:WTF: *overload* :crazy:

Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 23:00
by troed
Sound or key click?

Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 23:07
by Icky
troed wrote: 25 Sep 2018 23:00 Sound or key click?
Sound - that phaser type sound :)

EDIT - it is quite quiet though have to turn the monitor sound up to max

Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 23:12
by exxos
Icky wrote: 25 Sep 2018 23:07 EDIT - it is quite quiet though have to turn the monitor sound up to max
Its a new amp circuit, can tweak it at some point...

Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 23:12
by exxos
and... one final "oh crap" I found the ACIA issue....

Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 23:16
by Icky
exxos wrote: 25 Sep 2018 23:12 and... one final "oh crap" I found the ACIA issue....
Go on then - one last fix for the night

Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 23:17
by exxos
Icky wrote: 25 Sep 2018 23:16
exxos wrote: 25 Sep 2018 23:12 and... one final "oh crap" I found the ACIA issue....
Go on then - one last fix for the night
This won't be so simple, I've wired the ACIAs to the wrong side of the data bus 8-)

Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 23:18
by Icky
exxos wrote: 25 Sep 2018 23:17 This won't be so simple, I've wired the ACIAs to the wrong side of the data bus 8-)
Oh that is an "oh crap" moment.

I won't do that tonight.

Re: ALPHA MODIFICATIONS

Posted: 25 Sep 2018 23:21
by exxos
ACIA DATABUS FIX


STEP 1

First up is to cut the ACIA data bus... 8 tracks to cut on the bottom of the PCB...

acitc.jpg

STEP 2

8 wires to link as shown below..
br8.JPG

Re: ALPHA MODIFICATIONS

Posted: 26 Sep 2018 00:14
by Icky
exxos wrote: 25 Sep 2018 23:21 ACIA DATABUS FIX
STEP 1

First up is to cut the ACIA data bus... 8 tracks to cut on the bottom of the PCB...

STEP 2

8 wires to link as shown below..
Photo of fix including the keyboard resistor pull-up fix

IMG_3106.png