Unable to find optocoupler PC111 or equivalent for LCIII PSU

[ironborn65]

Dear all,

I'm recapping the non working PSU of a LCIII.

I checked the optocoupler[1] by testing pins 1,2 which correctly shows a diode.

But the 4, 5, 6 does not show a NPN transistor, so I assume it's bad.

I'm not able to find it or any equivalent PS2561-1/PS2501-1, NTE3041.

(I am waiting for the new capacitors, so I can not test the PSU with the original PN111)

Can some electronic expert advice on what can I use?

thanks so much

[1] https://pdf1.alldatasheet.com/datasheet-pdf/view/43321/SHARP/PC111L.html