USA MAV500/MKVI Service Manual
Power Supply Assembly
28-00486-00
5-11
This document contains confidential information which is proprietary to ATI. It may not be disclosed to any unauthorized parties,
and it may not be copied. All rights reserved.
© Copyright (ATI) Aristocrat Technologies, Inc. 2002.
Fluorescent Lamp Outputs
Voltage and Current
24 V DC
±
5% at 0 A to 2.0 A for all outputs.
Physical Connections
Two 24 V outputs are provided to power the top box fluorescent lamp and the cabinet
door fluorescent lamps. The electronic ballasts used provide the possibility of daisy
chaining the 24 V power rail for future adaptability. Outputs are via 4-pin Molex
Minifit Junior compatible connectors, which are mounted on the metal housing. The
pin functions are shown in the table below.
Table 5-5 Fluorescent Lamp Connections
Pin
Signal
Function
1
2
GND 24 V
ground, 24 V
3
4
+24 V
power for fluorescent lamps, +24 V
5.4 Removal and Replacement Procedures
WARNING
High voltages are present when the machine is
switched ON. These voltages may be lethal.
Note
Run a complete machine test after replacing the
power supply box or any power supply
component.
Fuses
The switched mode power supply fuse is an internal non-serviceable component. If
this fuse is blown, the power supply box must be shipped to the manufacturer for
service (contact the nearest Aristocrat office).
The monitor fuse and the GPO fuse are externally accessible and may be replaced as
described below (see Figure 5-2):
1.
Open the cabinet door, and switch OFF the mains switch and the GPO switch.
2.
Remove the fuse cap from the fuse holder by unscrewing it in a counter
clockwise direction.
3.
Remove the blown fuse and insert the new fuse into the cap. Insert the fuse cap
into the holder, screwing it in a clockwise direction. Do not over tighten.
