Sony UP895 Service Manual - Page 47
Paper Feeding is Out of Order, bases of Q404 through Q407
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5-5. Paper Feeding is Out of Order START Is fuse F400 blown? NO Are pulse signals input to pins 1, 3, 11 and 13 of IC301 on MA-99 board? YES Are pulse signals input to bases of Q404 through Q407 on MA-99 board? YES Is signal output from CN8 on MA-99 board? YES Fuse F400 on MA-99 board is defective. YES Pins 22, 23, 24 and 25 of IC304 on MA-99 board are NO defective. Pins 2, 4, 10 and 12 of IC301 on MA-99 board are NO defective. Peripheral circuits Q404 and Q407, and CN201 on NO MA-99 board are defective. The platen motor is defective. UP-895/(E) 5-5
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.