IC8 inserted backwards and powered.

[safetyboy]

I have some BA6110 ordered from ebay in case.

Will check the current, whats the easiest way to check that?

[guest]

if your multimeter can measure dc milliamps
then you can just put one end of the meter to pin4
and the other end to ground

when a note triggers it should go up to .050mA
and then fall back down to 0mA
if it happens too quickly for your meter
you can short d35 and d36 together to hold the note on

[safetyboy]

Will check that today, i have a feeling it might be something to do with IC8, maybe a short happened when desoldering. AS the traces came up on some pins. but the socketed new IC8 is making connection with all the components it should!

edit :

Should ground on analogue section be connected to ground on Digital? Mine isn't!


without J3 plugged in the DC amps dont budge from what i can see!

when J3 is plugged in its saying 33.2uA

[guest]

the analog and digital sections
are connected back on the mainboard
so if you have j3 unplugged you wont see connection

33uA is a good level
so the ba6110 is bad

[safetyboy]

cheers, have 2 ordered in case

will be back when they arrive, cheers

[safetyboy]

BA6110 arrived, here's hoping thats it. will let you know after work when i get a chance to change it!

[safetyboy]

Its alive

now to tune it..

[guest]

congrats

[safetyboy]

Decay and accent don't seem to do much?? its hard to tell, everything else seems fine.


And thanks guest for the help!

[guest]

play a set of lines with accent off
and set env mod to full
and turn the decay from min to max
you should hear the filter sweep
if not something is wrong

play a set of lines with accent
and turn accent up and down
you should hear the notes getting louder
if not something is wrong

[safetyboy]

Accent seems fine, not sure about the decay..

[guest]

with env mod on full
and resonance half way up
you should hear a noticeable difference
in filter sweep time with the decay knob

the next thing to check is to play a nonaccented line
and then turn accents on
while having the decay full up
you should hear the decay drop when the accents are on

do you hear any filter sweep
or is it that the sweep doesnt change with the decay knob

[safetyboy]

There is a change with the decay knob, its hard to tell though! everything else seems fine, USB, MIDI and stuff

[guest]

you can measure the resistance
across the decay knob
to see if its shorted somehow

[safetyboy]

Cant find a short decay just doesnt seem to vary at all.. everything else on the x0x seems fine, tuned OK too.