What was found
IN REFERENCE TO DF958, FOUND POWER FROM (115V AC STANDBY BUS) FLUCTUATES BETWEEN 114V AND 120V WHEN POWERED FROM LEFT BUS. WHEN POWER TURNED OFF AND USING POWER SUPPLIED FROM STATIC INVERTER, POWER IS CONSTANT. CHECKED POWER AT P6 PANEL BREAKER K16 (AC STBY BUS PWR) AND VOLTAGE IS CONSTANT. HUNG IN AC STBY PWR RELAY K105, NO HELP. NEED FURTHER TROUBLESHOOTING TO FIND WHAT IS CAUSING VOLTAGE FLUCTUATIONS. SEE SEQ# 5482013 FOR FIX STANDBY PWR SWITCH . INSERTED PIN AND GRD CHECKED OKAY. THERE WAS NO CONTINUITY FROM D3508 PIN 20 THROUGH 22.