Hi,
I bought recently an aquaboy pcb. I populated it with pre-measured components. I used MN3008, MN3101 and SA571. The compander works properly and the clock as well, MN3008 recieves signal on pin 7 but only clock signal on pin 3 on IC3. Both ICs recieve correct Vgg and Vdd. The zener and the 1n914 are omitted. The jumpers are set to MN3008 according to your pdf.
No signal on IC4. If IC3 removed, signal appears on pin 7 and clock on pin 3 but still no delay signal, only dry signal. My friend built exactly the same project (I ordered the IC set for him) and exactly the same happened.
Tried to play randomly with trimmers, but only dry signal, nothing affects the signal and no delayed signal. Tried to switch jumpers as chinese mn3008's sometimes have opposit grounding (mine should be NOS from banzai). Anyone has any tips what else could be done?
All the best,
Krisztián
I bought recently an aquaboy pcb. I populated it with pre-measured components. I used MN3008, MN3101 and SA571. The compander works properly and the clock as well, MN3008 recieves signal on pin 7 but only clock signal on pin 3 on IC3. Both ICs recieve correct Vgg and Vdd. The zener and the 1n914 are omitted. The jumpers are set to MN3008 according to your pdf.
No signal on IC4. If IC3 removed, signal appears on pin 7 and clock on pin 3 but still no delay signal, only dry signal. My friend built exactly the same project (I ordered the IC set for him) and exactly the same happened.
Tried to play randomly with trimmers, but only dry signal, nothing affects the signal and no delayed signal. Tried to switch jumpers as chinese mn3008's sometimes have opposit grounding (mine should be NOS from banzai). Anyone has any tips what else could be done?
All the best,
Krisztián