PD-D9-J
18
1
2
4
1
2
3
4
C
D
F
A
B
E
5. DIAGNOSIS
5.1 TROUBLESHOOTING
Start
(
Po
w
er
→
O
N)
Lighting LC
D
come out of the pure audio
mode or dimmer mode
Refer to Addendum
N
o. 1.
Appearance some
w
aveform on
LC
D
communication line
(
LCC
D
T,LC
D
CK,LC
D
CS,LC
D
RS
)
Confirm the port logic of BLOFF
and
D
IMM
E
R
w
hen operate
Confirmation HB at C
N
1801or change
D
1801,
D
1802,
D
1803
D
1804
<confirmation>
FU1
Connection bet
w
een J1702 and C
N
13
Po
w
er line C
N
11
3
: 5.6
V
,C
N
11
5
: 5.8
V
<confirmation>
D
1809 is shorten
HB at C
N
1802 and J1901
C
N
1802
3
is +13
V
Y
es
Y
es
N
o
N
o
N
o
<confirmation>
input and output of F2201,
Q
2103 is 5
V
Y
es
N
o
N
o
LC
D
displays
correctly
V
2201
1
is 4.4
V
and
V
2201
2
is
5
V
Y
es
N
o
Tray movement
(
open
/
close
)
Refer to Addendum
N
o. 2.
N
o
Focus
movement
OK?
N
o. 3.
Refer to Addendum
N
o. 4.
Y
es
spicdle movement
(
stop key react
)
Y
es
N
o
<confirmation>
Connection bet
w
een C
N
1802 and J1901
Connection bet
w
een C
N
1501 and C
N
2702
Connection bet
w
een C
N
2701 and C
N
901
Connection bet
w
een C
N
1702 and C
N
2704
Y
es
Y
es
Y
es
N
o
N
o
Change parts
D
1805,
Q
1801,
Q
1802 in turn
Change parts
D
1807,
Q
1803,
in turn
N
o
<confirmation>
HB at IC1101,IC1201
N
o
(V
+3
D
line
)
C
N
1802
3
is 3.3
V
<confirmation>
HB at J1901,C
N
1802,
IC1151,IC1152,IC1251,IC1252,
IC1401-IC1406
N
o
Y
es
<confirmation>
HB at C
N
1701
Change IC1701
N
o
LC
D
disappers and
flashing pure
audio L
ED
(V
+12
V
line
)
Cathode of 1801,
D
1802 is
+17
V
(V
+5
V
line
)
C
N
1802
1
is +5
V
Y
es
N
o
(V
+9
D
line
)
D
1701
1
is +7.5
V
Is status of
IC1701 OK?
Y
es
<confirmation>
HB at C
N
1701
Change IC1702
N
o
N
o
Is status of
IC1702 OK?
C
N
1702
3
is +6.5
V
<confirmation>
HB at C
N
1702,C
N
2704,IC101
N
o
Y
es
(V
+6R5
V
line
)
D
1702
1
is +8.5
V
A
Working
at pure audio
mode or
dimmer?
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