Oh yes! It is complicated.
You MUST find the service manual though (pages 7-1 and 7-2). First remove the plate underneath the arm (do this when playing a record). Turn the large plastic scew with a coin. Press stop. Unplug the deck.
You have two screws underneath the deck, precisely under the left edge.
Remove the platter and subplatter. You may use toothpicks for the platter!
Then you have to free the suspension, by pulling the 3 hooks away from the leaf springs (take them up, then move them slightly on the side). You can press the springs while doing this.
Have a break now.
Gently pull the entire upper part up, it opens the deck like a car bonnet, it is hinged on the right side. You have to let the arm go through and that's the difficult bit, because you MUST slightly move the subchassis to the left (with a slight clockwise rotation) while pulling up the bonnet! The main danger is to destroy the arm, no less...
Once the arm is freed (so be veeery careful here, it shouldn't even rub!) you may open the deck completely. You must now keep the lid closed and find something to maintain the deck open (with a 90 degrees angle), like a big book. But you will have to be able to open the lid to let the transformer go... just push it up from the under side, it is connected to the main PCB. Nothing to unscrew here.
While it's open, you might want to stabilize the suspension hooks at their base with a drop of neoprene glue. It'll make re-assembly easier... those have a tendency to fall inside the deck when you have almost finished... which will have you open it again!