Check The Power Factor Indicator And Reset Button; Power Supply (Bpsu672) Removal; Power Supply Replacement - Toshiba Strara CTX Series Installation And Maintenance Manual

Strata CTX670 Installation

Check the Power Factor Indicator and Reset Button

The front panel of BPSU672A provides a Power Factor LED and Reset button. If the cabinet power
factor is exceeded by overload of PCBs, the PF LED will turn on.
If the PF LED indicator turns on, press the PF reset button with a pointed tool or pencil. If the PF
LED turns off and does not turn on again it may have been turned on by a current surge while
installing a PCB while the power supply was turned-on.
When a PF alarm is indicated, check that the cabinet power factor is not exceeded using the
"System Power Factor Check Considerations" on Page
exceeded relocate any PCBs that are causing the PF to be exceeded.

Power Supply (BPSU672) Removal

1. Remove the front and right side covers
of other cabinets as needed to disconnect wiring.
2. Turn the power supply Off, and disconnect the AC power cord, all ground wiring and reserve
power cabling that is connected to the power supply.
3. Disconnect the back plane DC OUT cable plug from the DC OUT connector.
4. Loosen the four mounting screws securing the power supply to the cabinet and remove the power
supply.

Power Supply Replacement

Install the replacement power supply per
3-8
1-27. If the Power factor has been
(Figure 3-5) from the cabinet. Remove the right side covers
"Install Power Supply" on Page 3-6.
Strata CTX I&M September 2002