ALPHA MODIFICATIONS

[exxos]

No - not crap. Its fixed the sound. We have sound.

*overload*

[troed]

Sound or key click?

[Icky]

Sound or key click?

Sound - that phaser type sound

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

[exxos]

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...

[exxos]

and... one final "oh crap" I found the ACIA issue....

[Icky]

and... one final "oh crap" I found the ACIA issue....

Go on then - one last fix for the night

[exxos]

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

[Icky]

This won't be so simple, I've wired the ACIAs to the wrong side of the data bus

Oh that is an "oh crap" moment.

I won't do that tonight.

[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 (227.56 KiB) Viewed 8824 times

STEP 2

8 wires to link as shown below..

br8.JPG (394.02 KiB) Viewed 8819 times

[Icky]

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 (774.12 KiB) Viewed 8811 times