Qualstar XLS Series, Technical & Service Manual

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3
XLS Diagrams
XLS Library Technical Service Manual 3-35
Power Backplane PCBA
520427
-Y
r
204
o
Ri L
a
on r
P
021
r I
P w
upp
S
Ot er ve ys
a T iv
a T
iv
a T
iv
a T
iv
PC Chassis
PC Mother Board
+5 SB
Hard
Disk
PC o er ly
AC Inlet
AC
Power Backplane
PCBA
520427
Power Supply
Controller 520437
+24V
Aux
Connector
LCD Display
To h Dri Ba
Drive Bay Master
521127
Power
Supplies
+5V
+3.3V
+5V
+3.3V
+24V
Drive Bay Slave
521137
eft
C ousel
C troller
PCBA
520957
ght
Carousel
Controller
PCBA
520957
X
Cont ller
5 17
+24V
Drive Carrier
PCBA
520017
Power Supplies
+3.3V
+5V,+12V
Drive Carrier
PCBA
520017
Power Supplies
+3.3V
+5V,+12V
Drive Carrier
PCBA
520017
Power Supplies
+3.3V
+5V,+12V
Drive Carrier
PCBA
520017
Power Supplies
+3.3V
+5V,+12V
Theta-Z CBA
52 7
Use nterface
PCBA
520227
pe Dr e pe Dr e pe Dr e pe Dr e
PCBA’s with Internal Power Supplies:
Battery Module: +5V
Drive Bay Master: +3.3V, +5V
Drive Carrier PCBA: +3.3V; plus +5V, +12V for the Tape Drive
Carousel Controller: +3.3V, +5V
X-Y Controller: +3.3V, +5V, +13.5V
Theta-Z Controller: +3.3V, +5V, +12V
User Interface: +3.3V, +5V
Typical of 8 Drivebays Total
Figure 3-1 XLS power distribution