Sony DNW-A75 Maintenance Manual page 83

ERROR-14 FAN MOTOR TROUBLE
(FAN MOTOR)
Description: Malfunction of cooling fan motor was detected.
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If this error occurred, stop immediately operation of the unit, and turn off the power.
If the unit uses continuously under the fan is stopped state, overhearting inside the unit can cause a fire or
a failure.
Detecting condition: When the fan motor FG frequency is less than the specified value continuously
for more than one second.
Sub error message: None
. Fan motor trouble
Possible causes:
. Fan motor FG input port (IC115 or IC500 on SS-83 board) trouble
Protecting operation: None
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This unit has three fan motors.
When the above detecting condition is satisfied by any fan motor, this error occurs.
Relations of fan motors and operation state, ports, power switch circuit are as follows.
Use
For rear
For mechanical deck
For power supply unit
DNW-A75/A75P
Operation state
Always rotating
Always rotating
Always rotating
FG input port
IC500/SS-83 board
IC115/SS-83 board
IC115/SS-83 board
3-2. Details of Error Messages
3-13