1
2
3
4
C
D
F
A
B
E
56
1
2
3
4
VSX-84TXSi
Yes
Yes
Step 4-4: I2C
G
R634
VCSDA
M1
No
Check the parts and patterns in
the path(IC501 to IC601,701).
No
Replace IC501, IC601 or IC701.
Yes
R635
VCSCL
M2
No
Check the parts and patterns in
the path(IC501 to IC601,701).
No
Replace IC501, IC601 or IC701.
Yes
Step 4-5: VIDEO CLK,DATA
IC1381(Pin 6)
LLC1
N1
Is there a
No
Check the parts and patterns in
the path(IC601 to IC1381).
No
Check the parts and patterns in
the path(IC601 to IC1381).
No
IC1382(Pin 2-9)
P2-9
N3
Is there a
DATA?
No
Check the parts and patterns in
the path(IC601 to IC1382).
No
Replace IC601.
Yes
F
Yes
*Only
480p/576p/720p/1080i input
*Only
480p/576p/720p/1080i input
IC881(Pin 6)
RDCK
I1
Is there a
CLK?
No
Check the parts and patterns in
the path(IC1381 to IC881).
No
Replace IC1381.
Yes
IC883(Pin 2-9)
RD8-15
I3
Is there a
DATA?
No
Check the parts and patterns in
the path(IC1383 to IC883).
No
Replace IC1383.
IC884(Pin 2-9)
RD16-23
I4
Is there a
DATA?
No
Check the parts and patterns in
the path(IC1382 to IC884).
No
Replace IC1382.
Yes
Yes
Yes
*Only
480p/576p/720p/1080i input
IC901(Pin 49-56)
TD16-23
D2
Is there a
DATA?
No
Check the parts and patterns in
the path(IC884 to IC901).
No
Replace IC884.
*Only
480p/576p/720p/1080i input
IC701(Pin 63)
TDCK
L2
Is there a
CLK?
No
Check the parts and patterns in
the path(IC881 to IC701).
No
Replace IC881.
Yes
IC901(Pin 66)
TDCK
D2
Is there a
CLK?
No
Check the parts and patterns in
the path(IC881 to IC901).
No
Replace IC881.
IC901(Pin 57,58,
61-67)
TD8-15
D2
Is there a
DATA?
No
Check the parts and patterns in
the path(IC883 to IC901).
No
Replace IC883.
Does
a clock output in
constant period
(0 to 5 V)
?
Does
a signal output in
constant period
(0 to 5 V)
?
IC701(Pin 33)
XVCRST(ENC)
L2
s the voltage
"H"(3.3V)?
No
Check the parts and patterns in
the path(IC501 to IC701).
No
Replace IC501.
Yes
Check the X601 or IC602.
No
Replace X601 or IC602.
IC601(Pin 38)
XTAL1
L1
No
Is there CLK
(28.63636 MHz)
?
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