Hi all,
I just finished building Yocto and everything else works as should, but all the leds are on and I think that the "shift" button is on all the time. I swapped IC7 <-> IC8, and it's little different, but still not working. Sometimes with a longer push the "play" button works as a "roll" button, so I'm guessing it's triggering the sequencer on-off-on-off-on-off... Could it be a faulty IC2/7/8? Or some kind of short circuit somewhere? What should I search?
Cheers,
Janne
Sequencer issue (solved)
-
Last edited by JanneI on Mar 15th, '16, 17:36, edited 1 time in total.
Dear Janne,
Check that C1 and C2 are 22p and not 220pF.
Best regards,
e-licktornic
Check that C1 and C2 are 22p and not 220pF.
Best regards,
e-licktornic
Best regards,
e-licktronic
e-licktronic
Thanks! I'll check them, but I'm pretty sure that I have the correct values. BTW, the sequencer works as should, so if the crystal was the problem shouldn't it affect the whole sequencer, timing etc? Because I can even program new patterns, but when I press one of the step buttons to add a step while the sequencer is running, it sets "the last step", which according to manual should be "shift+step1-16"? Also, in init eeprom -mode I only need to press start to start initializing (shouldn't it be start+shift?).
Hope this helps...
edit: Not sure if these FB videos will show correctly but here you can see how start -button works (on-off-on-off-on if pressed longer). I also was able to program that custom pattern with the buttons, even though it changed the "last step" many many irritating times
https://www.facebook.com/IsotaloJanne/v ... 93/?type=3
Cheers,
Janne
Hope this helps...
edit: Not sure if these FB videos will show correctly but here you can see how start -button works (on-off-on-off-on if pressed longer). I also was able to program that custom pattern with the buttons, even though it changed the "last step" many many irritating times

https://www.facebook.com/IsotaloJanne/v ... 93/?type=3
Cheers,
Janne
C1 and C2 are indeed 22pf.
I even tried with all 3 new hc165n chips, no change in action.
Still the shift button is always on, start trigger shoots rapid fire, so does the next/scale button.
What should I check next?
Cheers,
Janne
I even tried with all 3 new hc165n chips, no change in action.
Still the shift button is always on, start trigger shoots rapid fire, so does the next/scale button.
What should I check next?
Cheers,
Janne
I measured the shift button, it's not +5v/0v, more like +0,5v/0v.
...and the problem was bad solder joint at R44. Now shift button works as should and start&next button "rapid fire" problems disappeared.
Securely manage investments with a quick Quicken Download
Quicken Download to gain control of your monthly spending.
Quicken Download gives you tools to oversee your bank accounts.
Stay financially organized with an easy Quicken Download
Budgeting becomes stress-free with Quicken Download
Quicken Download to gain control of your monthly spending.
Quicken Download gives you tools to oversee your bank accounts.
Stay financially organized with an easy Quicken Download
Budgeting becomes stress-free with Quicken Download
Quicken Download helps track your income and expenses.
Quicken Download for better household financial planning.
Simplify your investments by Quicken Download
Quicken Download to track savings and loans in one place.
Quicken Download helps keep your financial records updated.
Quicken Download for better household financial planning.
Simplify your investments by Quicken Download
Quicken Download to track savings and loans in one place.
Quicken Download helps keep your financial records updated.
Access all money matters by Quicken Download today.
Quicken Download to plan your future finances effectively.
Manage bills and accounts with the Quicken Download tool.
Stay in control of your budget through Quicken Download
Quicken Download for a clearer view of your money.
Quicken Download to plan your future finances effectively.
Manage bills and accounts with the Quicken Download tool.
Stay in control of your budget through Quicken Download
Quicken Download for a clearer view of your money.
Financial tracking is easy once you Quicken Download
Keep spending in check with a Quicken Download
Quicken Download lets you plan and save better.
Organize accounts and spending by Quicken Download
Quicken Download makes personal finance more manageable.
Keep spending in check with a Quicken Download
Quicken Download lets you plan and save better.
Organize accounts and spending by Quicken Download
Quicken Download makes personal finance more manageable.