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C.
DISC IN
OPEN/CLOSE
FOCUS ON?
YES
Does the disc turn?
YES
IC206
Pin16
is "High"?
YES
Is OK the track jump.
YES
Does the screen appear?
YES
END
Check
NO
the focus error moving the
lens up and down.
(IC201 Pin 21)
YES
Does the
TTL level change at IC206
Pin
78
and
13
moving
the lens?
YES
Replace µ-COM or IC206.
NO
Check CON404 Pin4, 6 Motor
turn when the Pin4 is less than 1.6V
NO
Check A
NO
NO
Video Par is defective.
Check "5.MPEG Circuit."
Check "7.OSD/Video Circuit."
Fig.3. FOCUS ERROR waveform
NO
Check IC201 Pin
52
Check IC201 Pin
58
IC201 no output : Pick-up is defective.
NO
Replace IC206.
Check IC206 and IC403 when the Pin
Does the signal
pulse input at IC700 Pin 27,
28
, and 29?
YES
Replace IC700.
3-10
,
53
,
54
,
55
in DVD Mode
,
59
,
60
,
61
in CD Mode
4
is abnormal
NO
defective. Check
"2.µ-COM Circuit."
µ-COM part is
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