Paper Sensor" Is Out Of Order - Sony UP-895 Service Manual

5-3. "Paper Sensor" is Out of Order

START
Is signal from sensor available at pin 5
of CN2 on MA-99 board?
YES
Is signal from sensor available at pin 6
of CN3 on MA-99 board?
YES
UP-895/(E)
PH31 on SE-531 board or D11 on SE-532 board is
NO defective.
LED on front panel or PH12 on SE-532 board is
NO defective.
Pins 18 and 19 of IC304 on MA-99 board are defective.
5-3