Here's an outside shot of the Galaxy Book
Here's Young Maya and Shondra
Here's Rykon in the Galaxy Book area of the GSA
Here's Rykon with the Galaxy Book
You see new footage of the Rangers calling for "Lights of Orion ACTIVATE!" but once you see an up-close shot of a Ranger's white glove then that is when it's the start of Sentai footage in this episode since it's part of the usual Sentai stock footage of the Lights of Orion materializing on the Rangers' suits.
Here's a side shot of the Orion Rangers in new footage
It then cuts to an up-close shot of the Orion Red Saber hitting the green gem on the left arm.
Here's the Orion Rangers in new footage plus you can see the Magna Defender in the background too
You see the Magna Defender running in new footage but it then cuts to Sentai footage once you see an up-close shot of the Magna Defender's feet and the bottom part of his legs.
Here's another new shot of the Orion Rangers in new footage, this is actually around the time in which they're about to call for Power-Up Mode.
Here's new footage of the Orion Rangers in Power-Up Mode
It eventually cuts into Sentai footage due to being in the same shot as Rykon.
These shots
is when it goes back to new footage.
This shot of Rykon sparking up is when it goes back to Sentai footage.
Power Rangers adds an effect over Rykon's broken Staff. Why? Who really knows.
Rykon grows in Power Rangers automatically, his growing sequence is Sentai footage. In Sentai, he drinks a Potion before he grows.
This shot of the Yellow Ranger is when it goes back to new footage however it then cuts to Sentai stock footage of the Power-Up Mode materializing on the Galaxy Megazord.
All Centaurus Megazord footage is taken from another episode.

Sentai footage comes from Ginga Episode 33