Hi guys.
I have problems with Arachnid v2.1. It seems that only analog part work since volume and mix knob react to input signal (i can hear original sound when mix is turned to left position and none on right; volume works as expected).
I changed 3 times crystal and 22pF capacitor, now I connect it directly on FV1 to avoid problems with too long wirings (because my first thoughts was that chip doesn't work due to missing CLK). I checked voltage changes on resistors R7, R16, R17 (they vary from 40-200mV to 2.9-3.2 according to selected position of mode switch). I checked input signal on pins 1, 2 (present), but none on 27, 28. I checked grounds & Vcc on all FV1 & EEPROM pins, everything seems OK (according to scheme).
There were only one suspisious thing -- the LED shine (very dimmed) also when footswitch was turned off. So I remove it, connect in/out directly to board and between ground and SW pins put simple switch. Now LED works as expected (no light when switch is open). Probably some problem with wiring on footswitch.
Anyway, I still can't here any sound from FV1. Any thoughts what could be wrong?
Thanks!
I have problems with Arachnid v2.1. It seems that only analog part work since volume and mix knob react to input signal (i can hear original sound when mix is turned to left position and none on right; volume works as expected).
I changed 3 times crystal and 22pF capacitor, now I connect it directly on FV1 to avoid problems with too long wirings (because my first thoughts was that chip doesn't work due to missing CLK). I checked voltage changes on resistors R7, R16, R17 (they vary from 40-200mV to 2.9-3.2 according to selected position of mode switch). I checked input signal on pins 1, 2 (present), but none on 27, 28. I checked grounds & Vcc on all FV1 & EEPROM pins, everything seems OK (according to scheme).
There were only one suspisious thing -- the LED shine (very dimmed) also when footswitch was turned off. So I remove it, connect in/out directly to board and between ground and SW pins put simple switch. Now LED works as expected (no light when switch is open). Probably some problem with wiring on footswitch.
Anyway, I still can't here any sound from FV1. Any thoughts what could be wrong?
Thanks!