Hello guys.
Build one of this beasts aaand I have issues.
I`m having issues with:
1. High TOM - faint sound when C109 is planted. sound with C109 but duhh.. no volume control ) (checked cap all good)
2. Handclap - no sound.
3. HH / OHH - no sound
4. PCM - no sound.
First of all, all the gates from the seq are working. All buttons, all leds. TM1* and TM2* set to specific values. DAC set to 13V. TP4 OK.
I`ll start with PCM and work my way up. For this post i only gathered data for the PCM part.
I scoped around and found at U11 pin 7 (all pots were around center) f=201.20Hz, V=14.90, Vrms = 13.49. Good sqare wave. Removed the 6110 i get no signal at pin 1. removed C157 (its good). At TP2 with pots in position (as manual) i get nothing no wave shape.
Attached some pics. 6110 seems cracked ?! I swear it wast put in reversed. no magic smoke or the puff fairy
Where is best to scope for envelope?
What should i check next?
Thanks.
Build issue HT, HC, HH / OHH, PCM
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Last edited by condor13 on Mar 1st, '18, 13:40, edited 1 time in total.
no? nobody?
Please?
Please?
Still ?
Need more info?
Need more info?
Ok. Ill move to muffs. This is useless.
Bye.
Thanks.........
for nothing.
You can close the Thread
Bye.
Thanks.........
for nothing.
You can close the Thread