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TROUBLESHOOTING SC CODES
2.1.12 SC Code No Code (SP58) - *Exposure Lamp Abnormal
Definition:
The light sensor voltage is less than 0.45 volts for 20 seconds.
<Points to check>
Exposure lamp
•
Light sensor
•
Lamp Regulator (CN1-1/CN1-2 for AC input voltage, CN3-1/CN3-
•
2/CN3-4/CN3-5)
Main board (CN107-A5 for PWM, CN102-7 for Light Sensor out)
•
2.1.13 SC Code No Code (SP59) - *Exposure Lamp Thermistor Open
Definition:
The resistance of the exposure lamp thermistor is more than 248 Ω for 20
seconds.
<Points to check>
Exposure lamp thermistor
•
Exposure lamp heater
•
AC controller 2
•
Main board (CN107-B4, CN107-B1)
•
6-12
31 December 1992
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