I have three of these calculators but two of the power units have failed. Does anyone have any information to help me get inside (the power units) and repair them?
crwdns2934109:0crwdne2934109:0
crwdns2934065:0crwdne2934065:0: 500.8crwdns2936485:0crwdne2936485:0
11
388
1.5crwdns2936485:0crwdne2936485:0
crwdns2936751:024crwdne2936751:0 0
crwdns2936753:07crwdne2936753:0 3
crwdns2936753:030crwdne2936753:0 4
crwdns2942667:0crwdne2942667:0 36
