Sharp XG-MB70X Serviceanleitung Seite 43

Checking the autofocus
Is dust, dirt or damage present
on the auto focus sensor
cover?
YES
Are voltages of 3.3V, 1.5V and
2.8V applied to pin (4) of X5001,
pin (94) of IC5003 and pin (5) of
IC5008 respectively?
YES
Is a clock (49MHz) output from
pin (3) of X5001?
YES
Is a clock (12.27MHz) output
from pin (108) of X5003?
YES
Is a clock sent to pin (93) of
IC5003?
YES
When auto focus is performed,
does pin (121) of IC5003
change?
YES
Check the motor drive circuit.
NO
Remove the dust and dirt, or
replace.
NO
Check the power supply circuit
and its peripheral circuits.
NO
X5001 is defective.
NO
Does the signal of pin (6) of
IC5004 change right after 3.3V
is applied?
YES
Check IC5004.
NO
Is the camera FPC properly
connected to the connector?
YES
The camera is defective.
NO
Check IC5005 and IC5006.
43
XG-MB70X
NO
Check IC5003.
NO
Connect properly.