The LC, LCII, LCIII, LCIII+, LC475, and Quadra 605 share the same power supply. If you can find the other brand besides TDK (the name escapes me but I know it has a sticker with green writing on it) you'll have a more reliable source.

It's also worth noting that Astec supplies should be avoided in SEs and IIcis (go for the Sony or GE, respectively).