The turntable is quite similar in design to the Technics linear trackers. The Sharp has a large belt driven die-cast platter, but with a raised piece about 10cm in diameter at the centre, so that the 'side 2' arm can move in between the record and the platter. Two linear tracking arms allow it to play both sides with no user intervention. It does not find individual tracks by itself, but speed and start size are automatically determined.
The loading mechanism is belt coupled to the loading motor, and if that belt perishes it will not open or close the record door. But there is a manual release at the back, so you can unlock the door and open it if the mechanism fails or there is no power.
The cassette deck has real independent level controls (not ALC as on so many music centres), and peak bargraph meters (of less resolution than you might guess, some LED segments light in pairs). And it has Dolby B. And automatic song finder which looks for gaps between songs. The cassette deck is not auto-reverse (fortunately!) and uses motorised head loading. It has both mic inputs and auxilliary line in.
The literature claims the tuner is PLL - that must refer to the FM demodulator, because the RF section is manual variable capacitor, with FM stereo, AM and shortwave.
It has one DIN spec line in and line out.
I think the amp is about 2x20W or 2x25W continuous average, and the speakers 2-way sealed box - quite solid & heavy.
No remote control at all. It came out in 1981.