LCD optimizer replaced 2 times. Both screens wont come on. Any ideas?

LCD optimizer replaced 2 times. Both screens wont come on with same unit. Any ideas on what other part needing replaced?

Thank you,

Chris

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

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0