PD-D9-J
21
5
7
8
5
6
7
8
C
D
F
A
B
E
N
o
.
S
ymptoms
D
iagnosis
C
ontents
P
ossible
D
efective
P
oints
4
Playback impossible
(
no focusing
)
Are the signals output from IC101-pin 3
(
FOCS_
D
R
V)
and pin 4
(
FOCS_RT
N)
on the
DVD
M Assy ?
DVD
M
A
ssy
FTS
D
river IC
(
IC101
)
D
oes 650-nm L
D
emit light ?
D
oes a pickup lens move up
/
do
w
n ?
D
oes an actuator spring bend ?
Pickup
Are plastic parts damaged ? Or is a shaft detached ?
Is the turntable detached or tilted ?
Mechanism section
(
motor
)
Is flexible cable of C
N
101 on the
DVD
M Assy disconnected or
damaged ?
Flexible cable
/
connector
Is signal output from IC201-pin 42
(
FOSO
)
on the
DVD
M Assy ?
(D
evice control of about 1.4
V
is output usually. It is fluctuated by about
250 m
V
w
ith focus up
/
do
w
n.
)
DVD
M
A
ssy
DVD
IC
(
IC201
)
5
Playback impossible
(
Spindle does not turn
)
Are the signals output from IC101-pin 30
(
W
)
, pin 33
(V)
and pin 35
(
U
)
on the
DVD
M Assy ?
Is pin 26
(
STB
Y)
fixed LOW ?
(
pin 26 is High at playback: 3
V)
DVD
M
A
ssy
FTS
D
river IC
(
IC101
)
Is there any part detached from the spindle motor ?
Or Is there any foreign object lodged in it ?
Mechanism section
(
Spindle motor
)
Are
w
ires of C
N
102 on the
DVD
M Assy disconnected or damaged ?
Flexible cable
/
connector
Is signal output from IC201-pin 37
(D
MSO
)
on the
DVD
M Assy ?
DVD
M
A
ssy
DVD
IC
(
IC201
)
6
Playback impossible
(
Playback stops
)
D
oes 650-nm L
D
deteriorate ?
If the voltage at each both ends of R322 and R325 on the
DVD
M Assy
is 0.4
V
or more, the 650-nm L
D
is definitely deteriorated.
650-nm L
D
deteriorated.
(
When playback of a
DVD
is
impossible
)
D
oes 780-nm L
D
deteriorate ?
If the voltage at each both ends of R321 and R326 on the
DVD
M Assy
is 0.4
V
or more, the 780-nm L
D
is definitely deteriorated.
780-nm L
D
deteriorated.
(
When playback of a C
D
is
impossible
)
Is there abnormality in FG
w
aveform ?
(
IC201-pin 47
)
DVD
M
A
ssy
FG output : FTS
D
river IC
(
IC101
)
Are there scratches or dirt on the disc ?
D
isc
Addendum
N
o.2
Addendum
N
o.4
Addendum
N
o.3
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
