SERVICE CALL CONDITIONS
SM 4-35 B132/B200
Optical unit sensor error
SC268 C
At power on, one of the two
temperature sensors in the
optics unit detected a
temperature lower than 0°C for
more than 1 sec.
-or-
It detected a temperature higher
than 100°C for more than 1 sec.
• Thermistor disconnected (causes
extremely low temperature reading)
• Thermistor damaged and short circuited
(causes extremely high temperature
reading)
• BCU defective
Exposure thermistor 2 error
SC269 C
At power on, exposure
thermistor 2 detected a
temperature lower than 0°C for
more than 1 sec.
-or-
It detected a temperature higher
than 100°C for more than 1 sec.
• Thermistor disconnected (causes
extremely low temperature reading)
• Thermistor damaged and short circuited
(causes extremely high temperature
reading)
• BCU defective
SC270 C
Mirror motor upper/lower limit: Y (Yellow)
SC271 C
Mirror motor upper/lower limit: M (Magenta)
SC272 C
Mirror motor upper/lower limit: C (Cyan)
The pulse rate of the mirror motor reaches
the upper or lower limit.
Note: SP2182 displays the pulse rate for
each motor.
• 3
rd
mirror motor is defective.
• 3
rd
mirror motor connecter is
not connected correctly.
MUSIC error
SC285 D
An error with the MUSIC occurs
four times since the last time the
main power was turned ON.
• ITB defective
• MUSIC sensors are dirty
• MUSIC sensors are defective
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Rev. 07/2005