SCPH-10000 to SCPH-3000x: Sony KHS-400A
SCPH-10000 to SCPH-3500x: Sony KHS-400B
SCPH-10000 to SCPH-5000x: Sony KHS-400C
SCPH-10000 to SCPH-50010 and SCHP-3000xR: Sony KHS-400R lens, Sanyo SF-HD7 lens(replacement).
KHS-400A can replace the KHS-400B only if a thin metal plate is taped to the side of the housing to form a metal corner like the B one, but it can’t replace either KHS-400C or R because of its thick base.
KHS-400B can repace KHS-400A without any modification but this model is not suitable to replace the C and R models due to its thicker base.
KHS-400C is thin and therefore can replace the A and B model as well as the R model.
KHS-400R is also thin and can be used in place of the C model as well as the A and B models. This model has a direct replacement from Sanyo bearing the model SF-HD7.
SCPH-7000xCB (PSTwo yellow box): NEC SPU-3170 lens???
SCPH-7000x (PSTwo): Mitsumi TDP-082W drive, Mitsumi PVR-802W lens
SCPH-7500x (PSTwo): Mitsumi TDP-082W drive???, Mitsumi PVR-802W lens
SCPH-7700x, SCPH-7900x (PSTwo): Mitsumi TDP-182W drive, Mitsumi PVR-802W lens
Some PSTwo have the Sony KHM-430AAA drive with the Sony KHS-430A lens. The Mitsumi and Sony models are interchangeable, but not the NEC models