Hi Everyone,
My tape in switch doesn't do anything, so I can't load in the sounds by tape. It should show load on the display. Is the voltage comparator or one of the DTC transistors to blame? Anyone had a similar problem? I don't know if I can test those DTC transistors with a DVM and I don't have an analogue meter.The switch itself works fine but the schematic is difficult to read exactly what's going on. Does the signal end up at any of the Enable pins on any of the chips? I could work backwards then, which might be easier to find the fault.
Everything else seems to work OK.
Thanks
Martin
My tape in switch doesn't do anything, so I can't load in the sounds by tape. It should show load on the display. Is the voltage comparator or one of the DTC transistors to blame? Anyone had a similar problem? I don't know if I can test those DTC transistors with a DVM and I don't have an analogue meter.The switch itself works fine but the schematic is difficult to read exactly what's going on. Does the signal end up at any of the Enable pins on any of the chips? I could work backwards then, which might be easier to find the fault.
Everything else seems to work OK.
Thanks
Martin