C750 CREW HAD A LOUD BANG FROM THE FRONT OF THE ACFT. THEY THEN HAD SMOKE IN THE COCKPIT.

Narrative

WE TOOK OFF FROM TRM ENRTE TO SDL. WHILE CLBING THROUGH FL220 AND AT 300 KIAS; WE HEARD A LOUD BANG COMING FROM THE FRONT SECTION OF THE ACFT. I CALLED OUR COMPANY ON THE FLT PHONE AND WE WERE AUTH TO DIVERT TO LGB WHERE THERE IS A MAINT FACILITY. I WAS THE PNF IN THE R SEAT; SO I CONTACTED ATC AND ASKED FOR A DIVERSION TO LGB. THEY GAVE US A L TURN INITIALLY JUST TO GET US IN THAT DIRECTION WHILE THEY WORKED ON A RTE. AS WE TURNED AROUND AND RECEIVED THE REST OF THE RTE; THE #4 DISPLAY UNIT FAILED. IMMEDIATELY AFTER THAT; WE BEGAN TO SMELL ELECTRICAL SMOKE AND I SAW A SMALL AMOUNT COMING FROM THE R SIDE OF THE CTR PEDESTAL. I IMMEDIATELY NOTIFIED ATC THAT WE HAD SMOKE IN THE COCKPIT AND DECLARED AN EMER WHILE THE PF STARTED A DIVE. I REACHED OVER AND SHUT OFF ALL AVIONICS; EICAS AND EXTERIOR LIGHTS. I THEN ASKED FOR VECTORS TO THE NEAREST ARPT AND ATC STARTED GIVING VECTORS TO BLH. WE SAW THE ARPT OFF THE NOSE AND NOTICED THAT THE SMOKE WAS GONE AND THE SMELL HAD BEGUN TO DISSIPATE. WE DISCUSSED IT AND DECIDED WE HAD THE PROB ISOLATED AND MADE THE DECISION TO LAND AT PSP. WE CONCLUDED THAT PSP WOULD BE CLOSE TO THE SAME AMOUNT OF TIME; CONSIDERING THE SPIRALING DSCNT TO BLH AND THAT PSP WAS A MUCH LARGER ARPT AND BETTER EQUIPPED TO HANDLE AN EMER ACFT. WE CONTINUED TO PSP AND LANDED SAFELY USING NORMAL LNDG PROCS.