My Saturn turns on but disc wont spin and their is no signal on Tv

I have a Saturn Mk-80000A and when I turn the Power on The Led comes on My Crt Flashes but then goes away immediately and the disk isn’t spinning. I tested the PSU and they are receiving the right voltage and I tried replacing the Battery.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2942205:01crwdne2942205:0:

Have you tried to put more pressure on the cover?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0