Toshiba SR Series Instruction Manual

Also see for TS2000: Instruction manual Instruction manual Instruction manual Instruction manual

MAINTENANCE MANUAL! CAUTION• Batteries should be disposed of according to the user's in-house regulations.• NEVER drop the batteries into fire. NEVER short-circuit, charge,disassemble or heat them. Otherwise, liquid leakage or rupture may becaused.3.3.4 Replacement of Switching Power Supply UnitThe life of the switching power supply unit (DC5 V/DC24 V) used in the TS2000controller differs with the operating conditions. This unit uses an aluminumelectrolytic capacitor, and if the load current is large, the running time is long andthe ambient temperature is high, the life will reduce.As the life varies largely with the user's operating conditions (5 ~ 10 years), replacethe power supply unit every five (5) years for preventive maintenance.[Replacement procedures]1) Turn off the main power switch.2) Turn off the power breaker.3) Remove the cover from the controller.4) Remove all connectors in the control panel, which are linked to the X8HC,X8HS (2 pcs.) and X8HP printed boards. (For the position of each printedboard, see Fig. 3.1.)5) Remove the X8HC, X8HN (X8HI), X8HS (2 pcs.) and X8HP printed boardsfrom the body.6) Disconnect the cable connecting the power module and the cable betweenPS1 and mother board.STE 73872– 3–9 –