Fan - Sony BDP-S485 Service Manual

Fan flowchart
FAN ERR display appears on the VFD
Enter the Service Mode and turn on the fan
from the IFcon menu
No
Is the voltage of CN1503 pin3 on the order
of 5V?
Yes
No
Is the fan roating?
Yes
Is FanState of the Service Mode screen set
No
to ON?
Yes
Check whether something is caught in the
fan blades. If there is nothing there, replace
Disconnect the harness from the fan that is No
inserted in CN1503 and take the
Yes
Replace the fan
Disconnect the harness from the fan that is
inserted in CN1503 and short pins 1 and 2
together. No
Does FanState of the Service Mode screen
go ON?
Yes
Replace the fan.
No
Is the voltage of IC1501 pin2 on the order of
3.3V?
Yes
Check around the fan power supply(IC1501).
Is the connection between IC1503 pin2 and
IC1503 pin55 broken?
Also check whether the trace is bridged with
the adjacent one.
Is the connection between IC1501 pin1 and
IC1503 pin58 broken? Also check whether