PD-D9-J
20
1
2
4
1
2
3
4
C
D
F
A
B
E
N
o
.
S
ymptoms
D
iagnosis
C
ontents
P
ossible
D
efective
P
oints
1
The po
w
er is not turned on. Are
w
ires of output connector
(
POW
E
R SUPPL
Y
Unit
)
and C
N
901
(DVD
M Assy
)
disconnected or damaged ?
Connector
/
cable
Check that the follo
w
ing voltage is output :
+ side of C739 : 3.3
V
DVD
M
A
ssy
3.3
V
Regulator IC
(
IC341
)
2
An opening screen is not
displayed on the monitor
(
The FL display lights. The
mechanism does not
w
ork.
)
Are the signals output from IC201-pin 98
(
M
D
ATA
)
and pin 99
(
SCLK
)
on the
DVD
M Assy ?
(
in the range of 0-3
V)
DVD
M
A
ssy
DVD
IC
(
IC201
)
Are the signals input into IC2101-pin 50
(
M
D
ATA
)
and pin 51
(
SCLK
)
on
the LC
D
Assy ?
(
in the range of 0-3
V)
LCD A
ssy
UCOM
(
IC2101
)
Check that the follo
w
ing voltage are output :
IC751-pin 1 on the
DVD
M Assy : 5
V
DVD
M
A
ssy
5
V
Regulator IC
(
IC751
)
Is a resonator
(
X202: 27MH
z)
on the
DVD
M Assy oscillating ?
DVD
M
A
ssy
Crystal resonator
(
X202
)
• Is a signal input into IC203-pin26
(
PC
E
#
)
on the
DVD
M Assy ?
(
Is a signal "H" for 80 mS and then "L" after the po
w
er is turned
on ?
)
→
Communication
w
ith flash ROM.
• Are the signals input into IC202-pin 16
(D
W
E
#
)
, pin 19
(D
CS#
)
and pin 38
(
S
D
CLK
)
on the
DVD
M Assy ?
(
Is a signal fluctuating ?
)
→
Communication
w
ith S
D
RAM
DVD
M
A
ssy
DVD
IC
(
IC201
)
Flash ROM
(
IC203
)
S
D
RAM
(
IC202
)
Is a signal output from IC203-pin 28
(
PR
D
#
)
on the
DVD
M Assy?
(
Is a signal fluctuating for several hundred mS after the po
w
er is turned
on ?
)
DVD
M
A
ssy
Flash ROM
(
IC203
)
Is a signal input into IC2101-pin 67
(DVD
ACK
)
on the LC
D
Assy ?
(
Is a signal fluctuating ?
)
→
Communication
w
ith FL Control IC
DVD
M
A
ssy
DVD
IC
(
IC201
)
LCD A
ssy
UCOM
(
IC2101
)
Is a signal output from IC2101-pin 30
(
XR
E
A
DY)
on the LC
D
Assy ?
(
Is
a signal fluctuating in the range of 0-5
V
?
)
LCD A
ssy
UCOM
(
IC2101
)
Are the signals output from IC2101-pin 49
(
S
D
ATA
)
on the LC
D
Assy ?
(
in the range of 0-5
V)
DVD
M
A
ssy
DVD
IC
(
IC201
)
LCD A
ssy
UCOM
(
IC2101
)
Are the signals of IC204-pin 5
(
S
D
A
)
and pin 6
(
SCL
)
on the
DVD
M Assy
fluctuating for one or t
w
o seconds after the po
w
er is turned ?
DVD
M
A
ssy
EE
PROM
(
IC204
)
Addendum
N
o.1
LOAB A
ssy
Tray SW
(
S101
)
Is the signal input into IC101-pin 11
(
TROP
EN)
on the
DVD
M Assy ?
At open: 3.3
V
, At close: 0
V
DVD
M
A
ssy
DVD
IC
(
IC201
)
Are the signals output from IC101-pin 1 and pin 2
(
C
N
103-pin 1 and
DVD
M Assy ?
Pin 2: Approx. 6
V
during opening tray approx. 0
V
during closing tray.
Pin 1: Approx. 0
V
during opening tray approx. 6
V
during closing tray.
DVD
M
A
ssy
FTS
D
river IC
(
IC101
)
N
104 and C
N
103 on the
DVD
M Assy disconnected or
Connector
/
cable
D
oes the voltage of C
N
102-pin 1 on the
DVD
M Assy change to 0
V
by
pressing the Inside s
w
itch.
Inside s
w
itch
oes the voltage of C
N
104-pin 3 and pin 5 on the
DVD
M Assy change
SW2
(
TRI
N))
: Tray is fully closed: "L"
SW1
(
TROUT
))
: Tray is fully opened: "L"
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