Search found 11 matches

by Dilli
Jul 16th, '14, 04:27
Forum: Yocto v1.0 Hardware
Topic: I need some help fault finding my Yocto.
Replies: 22
Views: 17871

Re: I need some help fault finding my Yocto.

Hey Craig,

This sounds very similar to the problem with my cymbal and hihats - my hats AND cymbal make the same noise your hats make, that ringy sound. I gave up on it for a little while and have just decided to start looking for the solution again.

Did you have any luck?
by Dilli
Mar 19th, '14, 03:10
Forum: Yocto v1.0 Hardware
Topic: Hats and Cymbal problems?
Replies: 3
Views: 4118

Re: Hats and Cymbal problems?

Thanks for your reply lfo2vco, I replaced the 4k7 resistor in the noise section with a 47k and got the voltage spot on but no change to the sound of the hats and cymbals. I then realised that the noise section shouldn't be affecting the hats and cymbal too much as their tone is generated with square...
by Dilli
Mar 13th, '14, 00:59
Forum: Yocto v1.0 Hardware
Topic: Hats and Cymbal problems?
Replies: 3
Views: 4118

Hats and Cymbal problems?

Hi guys, Has anybody else had any problems with their hats and cymbal voices? On my unit, both sound more 'ringy' than they should; I can hear a ring-mod-type, metallic sound and not much noise. The envelopes work fine, the voices just sound a bit off. I did have a problem with the noise section tri...
by Dilli
Feb 25th, '14, 15:29
Forum: Yocto v1.0 Hardware
Topic: Sequencer/midi not working
Replies: 6
Views: 5633

Re: Sequencer/midi not working

Yes, that's exactly what I did. Now, if I hold down steps 1, 3 and 5 while I turn turning the machine on, it still appears to enter sysex mode and when i send the file with MIDIOX the LEDs light up as if it's receiving data but as soon as the transfer finishes, all the LEDs turn off and the unit rem...
by Dilli
Feb 24th, '14, 23:36
Forum: Yocto v1.0 Hardware
Topic: cowbell sound problem, not the right 808 sound
Replies: 31
Views: 25142

Re: cowbell sound problem, not the right 808 sound

Haha, well done! I had to change a couple of resistors in the cymbal circuit to get my cowbell tuned right. I'm glad you got your tuning sorted out.
by Dilli
Feb 24th, '14, 23:33
Forum: Yocto v1.0 Hardware
Topic: Sequencer/midi not working
Replies: 6
Views: 5633

Re: Sequencer/midi not working

Also, I did check the parts in the sequencer. All components are in the right way and all the solder joints are clean. It really seems like a firmware/eprom issue to me. Even before it bricked up, it seemed like the machine was carrying bad data, and not saving any new data. Do you think it could be...
by Dilli
Feb 24th, '14, 22:44
Forum: Yocto v1.0 Hardware
Topic: Sequencer/midi not working
Replies: 6
Views: 5633

Re: Sequencer/midi not working

Thanks for your reply.

I tried reloading the firmware but it bricked the yocto! Now I can't do anything with it and I'm extremely sad and angry. It loaded the sysex, then all the LEDs flashed twice and then nothing. I tried loading it again, but still nothing.

Please help!!!!!!!

- Dilli
by Dilli
Feb 23rd, '14, 23:47
Forum: Yocto v1.0 Hardware
Topic: cowbell sound problem, not the right 808 sound
Replies: 31
Views: 25142

Re: cowbell sound problem, not the right 808 sound

Hi tiz,

Did you tune the oscillators with an oscilloscope? I've had trouble with the hats and cymbal but the cowbell sounds just right on my unit.

Trace the cowbell circuit back for errors. It shouldn't be too difficult as the cowbell is the most simple voice circuit :)
by Dilli
Feb 23rd, '14, 23:18
Forum: Yocto v1.0 Hardware
Topic: Sequencer/midi not working
Replies: 6
Views: 5633

Re: Sequencer/midi not working

After some rest I came back to it and found that I can set the midi notes in expander mode and trigger the voices from my computer but all the internal sequencer modes seem a bit buggy - their default setting is with all the drum voices being triggered on each step. I can deselect them with the sequ...
by Dilli
Feb 23rd, '14, 13:57
Forum: Yocto v1.0 Hardware
Topic: Sequencer/midi not working
Replies: 6
Views: 5633

Sequencer/midi not working

Hi guys, Due to extreme fatigue, I forgot to solder the 74HC165N and 74HC595N ICs in the sequencer section and the optocoupler in the master section... They were just sitting on the PCB, I realised after powering up; the sequencer didn't start, not all the step buttons lit up and there was noise on ...