21
XV-DV282AP
5
6
7
8
5
6
7
8
A
B
C
D
E
F
No.
Symptoms
Dia
g
nosis Contents
Possible Defective Points
4
A tray cannot be opened.
(An opening screen is
displayed on the monitor)
Does the voltage of C
N
965-pin 1 and pin 2 on the 09 D
V
DM Assy
change normally ?
Pin 1 (CLOSE (TRI
N
)): Tray is fully closed: "L"
Pin 3 (OPE
N
(TROUT)): Tray is fully opened: "L"
DVD MECHA Assy
Switch (SW1)
Is the signal input into IC101-pin 1 (TROPE
N
) on the 09 D
V
DM Assy?
At open: 3.3
V
, At close: 0
V
09 DVDM Assy
D
V
D IC (IC201)
Are the signals output from C
N
965-pin 5 and pin 4 on the 09 D
V
DM Assy ?
Pin 5: Approx. 5
V
during opening tray approx. 1
V
during closing tray.
Pin 4: Approx. 0
V
during opening tray approx. 6
V
during closing tray.
09 DVDM Assy
FTS Driver IC (IC101)
Are wires of C
N
964 and C
N
965 on the 09 D
V
DM Assy disconnected or
damaged ?
Connector / cable
Does the voltage of C
N
964-pin 5 on the 09 D
V
DM Assy change to 0
V
by pressing the Push switch.
Push switch (SW2)
5
Playback impossible
(no focusing)
Are the signals output from IC101-pin 16 (F+) and pin 15 (F–) on the 09
D
V
DM Assy ?
09 DVDM Assy
FTS Driver IC (IC101)
Does 650-nm LD emit light ?
Does a pickup lens move up / down ?
Does 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
965 on the 09 D
V
DM Assy disconnected or
damaged ?
Flexible cable / connector
Is signal output from IC201-pin 41 (FOSO) on the 09 D
V
DM Assy ?
(Device control of about 1.4
V
is output usually. It is fluctuated by about
250 m
V
with focus up / down.)
09 DVDM Assy
D
V
D IC (IC201)
6
Playback impossible
(Spindle does not turn)
Are the signals output from IC101-pin 12 (MOT_SPDL–) and pin 11
(M) on the 09 D
V
DM Assy ?
Is pin 21 (STBY) fixed LOW ? (pin 21 is High at playback: 3
V
)
09 DVDM Assy
FTS Driver 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 wires of C
N
964 on the 09 D
V
DM Assy disconnected or damaged ? Flexible cable / connector
Is signal output from IC201-pin 36 (DMSO) on the 09 D
V
DM Assy ?
09 DVDM Assy
D
V
D IC (IC201)
7
Playback impossible
(Playback stops)
Does 650-nm LD deteriorate ?
If the voltage at each both ends of R322 and R325 on the 09 D
V
DM
Assy is 0.4
V
or more, the 650-nm LD is definitely deteriorated.
650-nm LD deteriorated.
(When playback of a D
V
D is
impossible)
Does 7
8
0-nm LD deteriorate ?
If the voltage at each both ends of R321 and R326 on the 09 D
V
DM
Assy is 0.4
V
or more, the 7
8
0-nm LD is definitely deteriorated.
7
8
0-nm LD deteriorated.
(When playback of a CD is
impossible)
Are there scratches or dirt on the disc ?
Disc
8
Picture disturbance during
playback
(block noise, freeze, other)
Are there scratches or dirt on the disc ?
Is there a problem with the format of the disc ?
Check the video signals.
Composite video signal (IC401-pin 23)
S video signal (IC401-pin 21, pin 26)
RGB video signal (IC401-pin 16, pin 1
8
, pin 20)
Disc
9
N
o sound
(Picture is normal)
Check the waveform (ALCK: IC201-pin 231), (ALRCK: IC201-pin 227),
(ABCK : IC201-pin 230), (ASDATA0/1/2: IC201-pin 226/225/223).
Check the waveform (ASPDIF: IC201-pin 215)
09 DVDM Assy
D
V
D IC (IC201)
09 DVDM Assy
D
V
D IC (IC201)
V
ideo IC (IC401)
Summary of Contents for XV-DV180
Page 13: ...13 XV DV282AP 5 6 7 8 5 6 7 8 A B C D E F ...
Page 18: ...18 XV DV282AP 1 2 3 4 A B C D E F 1 2 3 4 4 3 DVD LOADER DECODER BLOCK DIAGRAM ...
Page 67: ...67 XV DV282AP 5 6 7 8 5 6 7 8 A B C D E F ...
Page 91: ...91 XV DV282AP 5 6 7 8 5 6 7 8 A B C D E F H H SIDE B SIDE B H POWER SUPPLY ASSY ...
