46
SC-LX82
1
2
3
4
A
B
C
D
E
F
1
2
3
4
Step 5: COMPONENT IN (more than 4
8
0p)
Step 5-1: HDMI OUT
C
N
1251 (Pin 10)
Is the voltage
"H" ?
N
o
Yes
COMPDET
Check C
N
1251 and diagnose
the COMPO
N
E
N
T Assy.
C
N
1253 (Pins
8
,10,12)
Is there a
analog video
signal?
N
o
Yes
Y_I
N
, CB_I
N
, CR_I
N
Check C
N
1253 and diagnose
the COMPO
N
E
N
T Assy.
Q1151,Q1155,Q1157
(Emitter), (side B)
Are the
signals output at
emitter?
N
o
Yes
SG_A, SG_B, SG_C
Check Q1151, Q1155, Q1157 and
its peripheral circuits.
IC402 (Pins 11-1
8
) (side B)
IC403 (Pins 2-9) (side B)
IC404 (Pins 6-9) (side B)
Are the
signals input?
N
o
V
DQ**
Check IC1701 and its peripheral
circuits.
Yes
IC1
8
07,IC1
8
0
8
(side B),
IC1
8
09,IC1
8
10(side B),
IC1
8
11(side B)
(Pins 11-1
8
)
Are the
signals output?
N
o
P** HSY
N
C,
V
SY
N
C, PDE, PDCLK
Yes
To Step 5-2
B
Step 4-3: HDMI IN 4 (Front IN)
To Step 5
C
N
1601 (Pin 20)
Is the voltage
around 5
V
?
N
o
N
G
N
G
N
G
Yes
V
+5_F
Check the soldering of C
N
1601.
Diagnose the FRO
N
T-HDMI Assy.
Diagnose the FRO
N
T-HDMI Assy.
Diagnose the FRO
N
T-HDMI Assy.
N
G
N
G
Check IC1601 and its peripheral
circuits.
Check IC1701 and its peripheral
circuits.
Check the source equipment.
Is the voltage
around 5
V
?
N
o
Check the soldering of C
N
1601.
C
N
1601 (Pins 14,15)
Does
a signal output in
constant period
?
N
o
Yes
Yes
DDC (SDA/SCL)
C
N
1601 (Pin 16)
Hot plug detect
Check the soldering of C
N
1601.
IC1601 (Pins 25,26,
2
8
,29,31,32,34,35)
Is there
0.5
V
p-p in CLK
and DATA?
N
o
Yes
TMDS signal
IC1601 (Pins 4
8
,49,51,
52,54,55,57,5
8
)
TMDS signal
Check IC1601 and its peripheral
circuits.
Is there
0.5
V
p-p in CLK
and DATA?
N
o
Yes
Check the soldering between
IC1601 and C
N
1601.
C
N
1601
(Pins 2,3,5,6,
8
,9,11,12)
TMDS signal
Is there
0.5
V
p-p in CLK
and DATA?
N
o
Yes
Check the soldering of C
N
1601.
A
Analog IN, HDMI OUT
Содержание SC-LX72
Страница 10: ...10 SC LX82 1 2 3 4 A B C D E F 1 2 3 4 2 2 PANEL FACILITIES 1 Front Panel ...
Страница 11: ...11 SC LX82 5 6 7 8 5 6 7 8 A B C D E F 2 Display ...
Страница 12: ...12 SC LX82 1 2 3 4 A B C D E F 1 2 3 4 ...
Страница 13: ...13 SC LX82 5 6 7 8 5 6 7 8 A B C D E F 3 Rear Panel ...
Страница 14: ...14 SC LX82 1 2 3 4 A B C D E F 1 2 3 4 ...
Страница 15: ...15 SC LX82 5 6 7 8 5 6 7 8 A B C D E F 4 Remote Control In case of SC LX82 ...
Страница 16: ...16 SC LX82 1 2 3 4 A B C D E F 1 2 3 4 ...
Страница 17: ...17 SC LX82 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 18: ...18 SC LX82 1 2 3 4 A B C D E F 1 2 3 4 5 Remote Control In case of SC LX72 ...
Страница 19: ...19 SC LX82 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 42: ...42 SC LX82 1 2 3 4 A B C D E F 1 2 3 4 SIDE A DSP ASSY B g p r t o q s b a Z X V D E G H e l c l j n A F ...
Страница 161: ...161 SC LX82 5 6 7 8 5 6 7 8 A B C D E F ...