Pioneer VSX-84TXSi Service Manual page 267

5
Step 5:
Step 5-1 DVD playback
(In a case of no DVD audio output)
J
60958
IC301 (pin 82)
No
Replace the 1394 Assy.
Is there a data
?
Yes
J
IC301 (pin 2)
Check the soldering of IC301.
No
If soldering has not been done
Is there a data
?
correctly, replace IC301.
Yes
K
IC404 (pin 4)
Check the soldering of IC404.
No
Is there a data
If soldering has not been done
?
correctly, replace IC404.
Yes
Check the DIGITAL MOTHER Assy.
Step 5-2 DVD-AUDIO playback
(In a case of no DVD-AUDIO audio output)
J
CLK, DATA
IC301 (pins 98-103)
Are there
No
Replace the 1394 Assy.
clock and data?
Yes
J
IC301 (pins 3-9)
Check the soldering of IC301 and
Are there
No
IC302. If soldering has not been
clock and data
done correctly, replace IC301 and
?
IC302.
Yes
L
IC409 (pin 4)
Check the soldering of IC409.
No
Is there a MCK If soldering has not been done
?
correctly, replace IC409.
Yes
Check the DIGITAL MOTHER Assy.
5
6
Step 5-3
M
X302 (pin 3)
Is
oscillation
of 22.5792MHz
output?
J
IC301 (pins 70-72, 75-81)
Are there
clock and data
?
J
IC301 (pins 20, 22-25, 28, 29)
Are there
clock and data
?
To Steps 5-3-1, 5-3-2
Step 5-3-1
N
IC401 (pins 19-23)
Are there
clock and data
?
J
IC301 (pins 3-9)
Are there
clock and data
?
Check the DIGITAL MOTHER Assy.
Step 5-3-2
O
IC405 (pins 12-18)
Are there
clock and data
?
Check the DIGITAL MOTHER Assy.
VSX-74TXVi
6
7
SACD playback
(In a case of no SACD audio output)
CLK, DATA
Check the soldering of X302.
No
If soldering has not been done
correctly, replace X302.
Yes
No
Replace the 1394 Assy.
Yes
Check the soldering of IC301 and
No
IC302. If soldering has not been
done correctly, replace IC301 and
IC302.
Yes
Normal
Check the soldering of IC401.
No
If soldering has not been done
correctly, replace IC401.
Yes
Check the soldering of IC301.
No
If soldering has not been done
correctly, replace IC301.
Yes
SACD DIRECT
(Select PURE DIRECT, using the AUTO
SURR/STREAM DIRECT key.)
Check the soldering of IC405.
No
If soldering has not been done
correctly, replace IC405.
Yes
7
8
A
B
C
D
E
F
221
8