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Troubleshooting > Trouble Diagnosis
(8) No auto focus operation
Does the video
level increase?
Camera circuit faulty.
Increase the
illumination
of the subject.
VIDEO SIGNAL:
360mVp-p or more
Connect an
oscilloscope
to video output
Does zoom
operate
normally?
See "(4) No zoom and
focus operation."
YES
NG
NG
NO
OK
OK
Set the zoom to the
wide-angle end.
Point at the objects
from the infinity to
close-up ends.
Is there a point at
which focus is obtained
between the infinity
and close-up ends?
Check IC1302 and
EEPROM
TL1345:PULSE
Data Initialize and
adjust auto focuss.
Does autofocus
operate normally?
IC1201 faulty.
END
NG
NG
NG
OK
OK
OK
Note: For the item marked , perform all
the adjustments required when the
unit is data initialized, before
adjusting auto focus.
C h e c k t h e
c o n n e c t i o n s o f t h e
l e n s f l a t c a b l e .
T L 1 3 4 6 : 3 V
T L 1 3 4 4 : P U L S E
L e n s u n i t f a u l t y .
I C 1 2 0 1 f a u l t y .
R 1 2 1 4 f a u l t y .
Q 1 2 0 1 f a u l t y .
C h e c k t h e 3 V l i n e
C o r r e c t t h e
c o n n e c t i o n s
o f t h e f l a t c a b l e .
NG
NG
NG
OK
OK
OK
A
The test lands and components of circuit no. 1000-1099 are on the SP circuit board.
The test lands and components of circuit no. 1100-1499 are on the PC circuit board.
The test lands and components of circuit no. 1500 and higher are on the CSR circuit board.
