With a quick scan through I found this little gem in the front of the tech manual but really no other significant details on the drive other than waveform measurments and interface tests. But then did not spend too much time on it.
So looking at the technical warning on the intros is the following text applicable to the 05 and 51
---Laser Pickup specifications and Laser characteristics--
Wave length : 405 nm
Operating output : 0.95 mW CW, Class 1M
Maximum output : Class 2 (under fault condition)
Wave length : 660nm
Operating output : 1.06 mW CW, Class 1M
Maximum output : Class 2M (under fault condition)
Wave length : 785 nm
Operating output : 1.34 mW CW, Class 1M
Maximum output : Class 1M (under fault condition)
So this confirms, to me anyway, there are three lasers and might shed some light on some of the conflicting symptoms we have seen in the past where DVD play is possible but an update CD won't load.
Nice find. Thanks. 😀