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psx-spx / psx-spx.github.io

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Diode 'D2' specification and suitable replacement #59

Open Torprendido opened 12 months ago

Torprendido commented 12 months ago

I am referring to 'D2 - 3pin dual-diode (R5/IRQ7 to GND and R3/DAT to GND)' in the section 'Pinouts - Component List and Chipset Pin-Outs for Analog Joypad, SCPH-110' listed in PlayStation Specifications at https://psx-spx.consoledev.net/pinouts/.

I am unable to figure out whether the diode D2 is of the 'common-anode', 'common-cathode' or 'serial' type.

What would be the suitable replacement for D2?

nicolasnoble commented 11 months ago

I'm fairly certain the diodes there are simple general purpose, so anything which would match the footprint would work.

Torprendido commented 11 months ago

I see that the superior single pin is connected with GND, so I think I can use a common-cathode diode. I'm going to probe a BAT54C.