VSX-AX4AVi-S
214
1
2
3
4
1
2
3
4
C
D
F
A
B
E
Step 3: HDMI
Step 3-2: CLK, DATA
IC101 (pins 1-3, 121)
VIDEO
AUDIO (DVD)
Is there a clock
?
No
Yes
U
IC101 (pins D0-D23)
Is there a data
?
No
Yes
U
Step 3-3: Tx
D381 (Cathode)
HPD
DDC_TX
Is the voltage
"H" (5 V)?
No
Yes
W
IC301 (pins 19, 20)
Is there a
signal
?
No
Yes
X
IC101 (pins 78, 88)
Are there
clock and data?
No
Yes
U
IC201 (pin 11)
Is there a data
?
No
Yes
V
AUDIO (DVD-AUDIO/Multi ch)
IC101 (pins 81-88)
Are there
clock and data?
No
Yes
U
IC201 (pins 12-18)
Are there
clock and data?
No
Yes
V
Q353 (pins 3, 6)
No
Y
Z
Yes
CN301
Is soldering of
CN301 OK?
No
Solder the CN301correctly.
Yes
Yes
Do signals
(approx. 0.5 Vp-p)
run in all the
lines?
No
IC301 (pins 26, 27,
29, 30, 32, 33, 35, 36)
TMDS_TX
Replace CN301
Check the soldering of IC101.
If soldering has not been done
correctly, replace IC101.
Check the soldering of D381.
If soldering has not been done
correctly, replace D381.
Check the soldering of IC301.
If soldering has not been done
correctly, replace IC301.
Check the soldering of Q353.
If soldering has not been done
correctly, replace Q353.
Check the soldering of IC301.
If soldering has not been done
correctly, replace IC301.
Check the soldering of IC101.
If soldering has not been done
correctly, replace IC101.
Check the soldering of IC101.
If soldering has not been done
correctly, replace IC101.
Check the soldering of IC201.
If soldering has not been done
correctly, replace IC201.
Check the soldering of IC101.
If soldering has not been done
correctly, replace IC101.
Check the soldering of IC201.
If soldering has not been done
correctly, replace IC201.
Check the INTERFACE Assy
and DIGITAL MOTHER Assy.
Check the INTERFACE Assy
and DIGITAL MOTHER Assy.
Yes
Are
signals the
same as those at Pins
4 and 1 but whose voltage
has been converted
from 3V to 5V
detected?
