crwdns2933897:0crwdne2933897:0

Projection clock numbers breaking up

Some of the numbers on the projection have started to break up or have just faded away. Do I need to replace the whole projection unit, or is it a lens problem? Please advise. Thanks.

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

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 1
crwdns2934285:0crwdne2934285:0