If your KLA Surfscan’s laser is no longer working, it’s likely that the Cyonics-Uniphase 2114B-30SLQST power supply has failed. GetSpares.com has these supplies in fully functional Surfscan models 6100, SFS 6200, SFS 6220, SFS 6400 and SFS 6420. The tools are fully functional so you know the supply is too. Head to GetSpares.com to get your parts today!