Sony HDXS-C200, Service Manual

Page: 35 / 106

35
Internal parts
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System cooling fans
Two System Cooling Fans are located in the centre of the
server unit, separating the front and rear compartments of
the chassis.
The Fans are hot-swappable, and can therefore be removed
while the server is operational (see
Chapter 6, Parts
Replacement for the replacement procedure).
The fans are designed to direct cooling airflow from the
front compartment of the chassis, into the rear
compartment and over the Motherboard, to be expelled
from the rear of the unit. It is therefore important to check
that the orientation of these fans is correct when replacing
them.
Each Fan is connected to a Fan Adapter Board which
supplies power to the Fan from the System Power Board,
which controls the internal temperature of the unit, and
reports back the speed of the Fan.
Fan adapter board (PN16-0106)
Two hot-swappable system fans are provided by the
server, and the interconnection between the fans and the
System Power Board is through the Fan Adapter Board.
The fan is connected to the board through the 4-pin
connector and is connected to the System Power Board via
the Card edge connector, which has a total of 10 pins; 5 on
each side.
Pin Signal Name
1 Ground
2 +12 V
3 Fan Tach out Signal
4 Fan PWM out Signal