Toshiba DK8, DK 16 manual Power Supply Removal, Power Supply Replacement

INSTALLATION-DK16 KSU & PCB SECTION 100-816-205 MARCH 1993

KPSU16	TWO-PRONG
	MALE CONNECTOR
	(PRE-ASSEMBLED)

PBTC-3M

BATTERY CABLE

+ WHITE

BATT

–

BLACK

IN-LINE

FUSE HOLDER 10 A

(FUSE PROVIDED)

POWER SUPPLY 16AWG

BLACK

WITH RING TERMINALS AND PPSU CONNECTOR (LENGTH 9 FEET)

WHITE

– +

–+

ACTUAL SIZE

12 VDC BATTERY

12VDC BATTERY

RING TERMINALS 3/8 IN.

BLACK JUMPER

WITH RING TERMINALS (PROVIDED)

FIGURE 5-9

RESERVE POWER/BATTERY WIRING

3 POWER SUPPLY REMOVAL AND

REPLACEMENT

3.00The power supply (KSPU 16) comes factory- installed in the Base Key Service Unit (Figure 5- 10); if necessary, it can be removed and replaced.

3.10 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 green AC LED is not lit.

2)Unplug reserve battery cable from BATT con- nector of power supply (Figure 5-10).

3)Remove K4RCU PCB and Expansion Unit

4)Unplug the DC cable from the DC OUT con- nector (see Figure 5-10).

5)Remove FG screw from left side of power

supply to free FG wire/terminal and building ground wire.

6)Remove the six screws that attach the power supply to the Base Key Service Unit. Remove power supply.

3.20 Power Supply Replacement

1)Route FG1 wire (soldered on both sides of Base Unit motherboard) so it will be under the power supply inside of standoffs (see Figure 5-10).

2)Set the power supply in its proper place in the Base Key Service Unit (see Figure 5-9).

3)Secure the power supply to the Base Key Service Unit with the six screws.

5-11