But i was able to get another M5218l that should work. But as i understand this is just an amplifier and has nothing to do with the range of the decay?
All seems to work normal but...
When turning the pots down CH and OH decay is very very short.
It seems that the "starting" point of the hat decay is way too short. The range of the pots seems ok but they start Approx. 50% too short .Turning the pots to 100% the sound is about 50% of the "normal" full hihat length. (i own a TR909 so i can compare).
I studied the circuit the whole night but have no idea what to try next. This is what i did so far:
Changed Q74, Q73 and Q72 also C135 ... checked the according resistors (R452)..also i put an additional 1uf capacitor parallel to c135 which was nearly ok, but somehow not perfect
Where else should i check? If i can't figure out i have to rebuild the whole part Which part defines the range of the pots? Right now i have the length of 5% to 50% of sample length and i want the normal range from maybe 25% to 100%
I checked every part of the decay section looking through the schematics but am not sure what i oversee?
Thank you...
BTW i feel the same about the attack range of VR3 Bassdrum...range goes lets say from 10-40 and i like it to be from 20-50 if you know what i mean...
My 909 starts at the attack range where my nava stops ( Nava from 10-50; 909 from 50-100) turning pot VR3 to full 100% (pot full right) is like 0% (pot full left) on my 909.
So i am wondering which part is responsible for that? Which part defines where VR3 range starts and ends?
STATUS UPDATE:
I will swap all transistors because i recognized some strange behaviour. When starting a pattern with the hats the decay is very short, and after a while the decay becomes slowly nearly normal. As if the capacitor fills up very slowly. I swapped C135 also. It is new. Q74 and Q72 are also new but i have no new Q73. So i will have to order some new transistors and see if this will do it. If not I will continue swapping out more parts (Q84)...
