49
SC-LX81
5
6
7
8
5
6
7
8
A
B
C
D
E
F
Diagnose the HDMI Tx(IC301).
Check the IC1301 and IC1351.
No
Replace IC1301 or IC1351.
DCK
Is there a
CLK?
No
Step 5-4: OUTPUT
Yes
Yes
I
IC1301(Pin 1)
HS
N1
Is there a
HSYNC?
No
Yes
IC1301(Pin 2)
VS
IC1301(Pin 125)
Check the IC1301 and IC1351.
No
Replace IC1301 or IC1351.
D16-23
Is there a
DATA?
No
IC1301(Pins 148-155)
Check the IC1301 and IC1351.
No
Replace IC1301 or IC1351.
Yes
Yes
TD28-35
Is there a
DATA?
No
IC1301(Pins 130-137)
Check the IC1301 and IC1351.
No
Replace IC1301 or IC1351.
HSYNC
Is there a
HSYNC?
No
IC1301(Pin 20)
Check the IC1301 and IC1351.
No
Replace IC1301 or IC1351.
VSYNC
Is there a
VSYNC?
No
Yes
Yes
IC1301(Pin 21)
N1
N1
N1
N1
N1
N1
Is there a
VSYNC?
No
No
Replace IC401.
Check the parts and patterns in
the path (IC401 - IC1301).
No
Replace IC401.
Check the parts and patterns in
the path (IC401 - IC1301).
IC1301(Pins 21-28) P12-19
*Skip at analog 480i/576i input.
N1
Is there a
DATA?
No
Yes
No
Replace IC401.
Check the parts and patterns in
the path (IC401 - IC1301).