41
SC-LX81
5
6
7
8
5
6
7
8
A
B
C
D
E
F
C
JA1104(Pin 16)
SDA(HDMI I
N
3) *
G5
Yes
JA1104(Pin 15)
SCL(HDMI I
N
3) *
G5
N
o
R1221
G6
N
o
Yes
Yes
D
Yes
Check the patterns in the path.
Check the JA1104.
N
o
Replace JA1104.
Check the patterns in the path.
Check the JA1104.
N
o
Replace JA1104.
Check the patterns in the path.
Check the IC1204 and IC120
8
.
N
o
Replace IC1204 and IC120
8
.
*
W
hen connected the source
equipment to I
N
3.
R1220
G6
N
o
Yes
Check the patterns in the path.
Check the IC1204 and IC120
8
.
N
o
Replace IC1204 and IC120
8
.
JA301(Pin 16)
SDA(HDMI OUT1)
C1
N
o
Check the patterns in the path.
Check the JA301.
SC-LX
8
1 only
N
o
Replace JA301.
R10
8
(Pin 7)
G2
RXDSCL0
G2
N
o
Yes
Check the patterns in the path.
Check the IC1204 and IC120
8
.
N
o
Replace IC1204 and IC120
8
.
R10
8
(Pin
8
)
N
o
Yes
Check the patterns in the path.
Check the IC1204 and IC120
8
.
N
o
Replace IC1204 and IC120
8
.
N
o
Does
a clock output in
constant period
(0 - 5
V
)
?
Is there
a same signal as SDA
(I
N
3) (0 - 4.4
V
)
?
Is there
a same signal as SCL
(I
N
3) (0 - 4.4
V
)
?
Is there
a same signal as SDA
(I
N
3) (0 - 4.4
V
)
?
Is there
a same signal as SCL
(I
N
3) (0 - 4.4
V
)
?
Does
a signal output in
constant period
(0 - 5
V
)
?
Does
a signal output in
constant period
(0 - 5
V
)
?
RXDSDA0
R30
8
DSDA
G7
N
o
Yes
Yes
Check the patterns in the path.
Check the R316 and R31
8
.
N
o
Replace Q302.
JA301(Pin 15)
SCL(HDMI OUT1)
C1
N
o
Check the patterns in the path.
Check the JA301.
N
o
Replace JA301.
Does
a clock output in
constant period
(0 - 5
V
)
?
Yes
JA351(Pin 15)
SCL(HDMI OUT2)
C2
N
o
Check the patterns in the path.
Check the JA351.
N
o
Replace JA351.
Does
a clock output in
constant period
(0 - 5
V
)
?
Is there
a same signal as SDA
(OUT1) (0 - 3.3
V
)
?
R307
DSCL
G
8
N
o
Yes
Check the patterns in the path.
Check the R315 and R317.
N
o
Replace Q302.
Is there
a same signal as SCL
(OUT1) (0 - 3.3
V
)
?
R35
8
DSDA
G9
N
o
Yes
Check the patterns in the path.
Check the R366 and R36
8
.
N
o
Replace Q352.
Is there
a same signal as SDA
(OUT2) (0 - 3.3
V
)
?
R357
DSCL
G10
N
o
Yes
Check the patterns in the path.
Check the R365 and R367.
N
o
Replace Q352.
Is there
a same signal as SCL
(OUT2) (0 - 3.3
V
)
?
Yes
JA351(Pin 16)
SDA(HDMI OUT2)
C2
N
o
Check the patterns in the path.
Check the JA351.
N
o
Replace JA351.
Does
a signal output in
constant period
(0 - 5
V
)
?