Sony UP-895 - Paper Feeding Is out of Order

5-5
UP-895/(E)
5-5. Paper Feeding is Out of Order
Pins 2, 4, 10 and 12 of IC301 on MA-99 board are
defective.
YES
NO
NO
NO
YES
YES
Is fuse F400 blown?
Are pulse signals input to
pins 1, 3, 11 and 13 of IC301
on MA-99 board?
Are pulse signals input to
bases of Q404 through Q407
on MA-99 board?
START
Fuse F400 on MA-99 board is defective.
Pins 22, 23, 24 and 25 of IC304 on MA-99 board are
defective.
Peripheral circuits Q404 and Q407, and CN201 on
MA-99 board are defective.
NO
YES
Is signal output from CN8
on MA-99 board?
The platen motor is defective.