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Leds mods

Posted: Dec 27th, '16, 09:59
by Dr.Knob
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Here are the locations of each resistances of the leds, this allows to put other colors of leds, selecting different values of resistances.

-Keypad 1-->16:

S1 R672
S2 R673
S3 R674
S4 R675

S5 R676
S6 R677
S7 R678
S8 R679

S9 R680
S10 R681
S11 R682
S12 R683

S13 R684
S14 R685
S15 R686
S16 R687

-Start keypad:
S17 R641

-Stop/cont keypad:
S18 R640

-Enter keypad:
S19 R616

-LCD lighting: R694

-Scale leds:
Led 1 R628
Led 2 R629
Led 3 R630
Led4 R631

-Other resistors 1K2: Small rectangular square buttons.

Re: Leds mods

Posted: Dec 21st, '21, 17:45
by Vallejosonwatson
Has anyone have a (kind of) loud hum when the hi hat filter is in any position but off?

It's not very distinguishable when two or three other sounds are playing simultaneously but it's certainly loud enough when I have all but the hi-hat muted and the filter on.

Nava is otherwise fully working and the trimmers are set correctly (I'm on 3.2 so no resonance adjust)
When the filter is off the hum dissapears completely..it also goes away when I set the freq cutoff to zero.
Is this normal?

***
I didn't bother matching the filter diodes or anything else really so I initially thought that what's you get when being lazy and it should a minor leakage or mismatch of some sort but it's pretty pronounced and I'm starting to think there's a fault somewhere.