DK40 Installation
Power Supply Removal and Replacement
2-20
Strata DK40 I&M Manual Spring 1999
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
Power Supply Removal and Replacement
The power supply (TPSU16F) comes factory-installed in the Base KSU; if necessary, it can
be removed and replaced.
Power Supply Removal
1. Make sure that the power supply switch is OFF and that the AC power cable is not
plugged into an outlet. Confirm that the green AC LED is not lit (see Figure 2-14).
2. Unplug reserve battery cable from BATT connector of power supply.
3. Unplug the FG2 plug from the Expansion KSU ground wire.
4. Unplug the DC cable from the DC OUT connector (P16).
5. Remove the FG screw from left side of power supply to free FG wire/terminal and
building ground wire.
6. Disconnect the earth wires from the TCOU, TBSU, or KSTU3 PCB’s that are connected
to FG1 or FG2.
7. Unplug the AC power cord from PN2.
8. Remove the eight screws that attach the power supply to the Base KSU. Remove the
power supply.
FG2
POWER SUPPLY ASSEMBLY
MODEL
INPUT: AC240V 1.0A 50/60 HZ
OUTPUT: -27.3V 2.8A. -27.3V 0.2A
V. 1A 1996-05 00001
TOSHIBA CORPORATION
TPSU16F
MADE IN SINGAPORE
WARNING
Hazardous voltage inside!
If servicing required
remove A. C. plug.
12
+
-
BATT
PN2
FG5
12
AC DC
DC POWER
FG
FG1
-24V
-24V
FG2
FG3
FG4
1643
1
2
3 4
5678
Figure 2-14 Power Supply (TPSU16A)
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