Sharp SF-A57 Service Manual page 25

C. Motor error (DTM, DRM)
(Common to SF-A18/A57)
C
Is the motor
harness connected
properly ?
YES
Is the load
at the motor shaft
normal ?
YES
Are the motor
connector pins (*)
conducting
normally ?
YES
Replace the motor.
(*) DTM: Between CN4-5 and CN4-3, -4
Between CN 4-6 and CN4-1, -2
DRM: Between CN7-3 and CN4-7, -8 (SF-A57 only)
Between CN7-4 and CN4-5, -6 (SF-A57 only)
NO
Connect the harness
properly.
Adjust the mechanism load
NO
and the drive system, and
remove foreign materials.
NO
NO
Is the harness
conducting ?
YES
Replace the control
PWB.
Replace the harness.
D. Sensor error (DFD, DTD)
(Common to SF-A18/A57)
D
Is the sensor
harness connected
properly ?
YES
Is the mirror
free from paper
dust or dirt ?
YES
Is the automatic
adjustment performed
properly ?
YES
Replace the control
PWB.
– 24 –
NO
Connect the harness
properly.
NO
Clean the mirror.
NO
Is the harness
conducting?
YES
Replace the sensor.
Replace the harness.
NO