Power Supply Replacement - Toshiba Strata DK24 Installation And Maintenance Manual

INSTALLATION-KSU
SECTION 400-096-205
SEPTEMBER 1992
PPSU56
POWER +5V -5V
-24V 1 -24V 2 -24V 3 DC OUT
DC OUT TEST POINTS
DC OUT
-24V
1
-24V 2 -24V
3
FIGURE 5-4
PPSU56 FRONT PANEL AND
DC OUT TEST POINTS
4.10 Power Supply Removal
4.11 DK24. Refer to Figure 5-3 and remove the
power supply in accordance with the following
steps:
1) Remove screws (2) on right side of the KSU.
2) Slide the power supply out and gently remove
it from the KSU.
3) Reach behind the power supply and disconnect
the cable at the P1 backplane connector.
4.12 DK56/96. Refer to Figures 5-4 and 5-5 and
remove the power supply in accordance with the
following steps:
1) Squeeze the locking tab on the DC OUT plug,
and remove the plug from the DC OUT
connector.
PPSU56
AC IN
ON
OFF
SG FG LG FG
BATT
+ _
DG +5V
DG -5V
5-4
DC OUT
+5V -5V
1 1
DG DG
DC OUT
TEST
-24V 1 -24V 2
POINTS
-24V 3
-24V 5
-24V 4
DG
DG
+5V -5V
2 2
FIGURE 5-5
PPSU96 FRONT PANEL AND
DC OUT TEST POINTS
2) Remove the four combination slotted/Phillips
mounting screws from the power supply front
panel.
3) Slide the power supply out.

4.20 Power Supply Replacement

4.21 DK24. Refer to Figure 5-3 and replace the
PPSU24 in accordance with the following steps:
1) Slide the power supply partially in to the right
end of the PCB slot shelf.
2) Reach behind the power supply, and connect
the cable from the rear of the power supply into
connector P1 on the KSU backplane.
3) Slide the power supply completely into the slot
and secure it with screws (2) on the right side of
the KSU.
PPSU96
PPSU96
-5V
+5V 1
+5V 1
+5V 2
+5V 2
-24V 1
POWER
-24V 2
-24V 3
-24V 4
-24V 5
DC OUT
+
BATT
_
ON
SG
FG
OFF
AC IN
LG
FG