Sony UP-895 - Paper Sensor Is out of Order

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