Pioneer VSX-LX53 Service Manual page 35

5
QQ
3 7 63 1515 0
C
IC1811 (Pins 2,5,11,14)
Are there
signals?
Yes Yes
IC1811 (Pins 4,7,9,12)
Are there
signals?
Yes
B
Step 1-7: HDMI
Refer to additional document "Condition of SPDIF or I2S Output
Selection " which shows what type of format has SPDIF or I2S
signals.
SPDIF
TE
L 13942296513
IC908 (Pin 9)
Is there
a signal?
Yes
IC908 (Pin 11)
Is there
a signal?
Yes
IC1805 (Pin 2)
Is there
a signal?
Yes
IC1805 (Pin 3)
Is there
www
a signal?
Yes
.
C
5
http://www.xiaoyu163.com
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No
Check the patterns between
IC1811 (Pins 2,5,11,14) and
IC1810 (Pins 4,7,9,12).
No Check the IC1811 and its
peripheral circuits.
(HDI2S signal: Low)
RXSPDIF
No
Not described
HDSPDIF/DSDSL
No
Check the IC908 and its peripheral
circuits.
HDSPDIF/DSDSL
No Check the patterns between
IC1805 (Pin 2) and IC908 (Pin 9).
MSPDIF
No Check the IC1805 and its
peripheral circuits.
x (XHDSPDIF Signal: Low) ao u163
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i
6
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7
2 9
8
2ch I2S
IC908 (Pins 2,6,7,8)
Are there
signals?
Yes
IC908 (Pins 12,13,14,18)
Are there
signals?
Yes
IC1811 (Pins 3,6,10,13)
Are there
signals?
Yes
D
Q Q
3 6 7 1 3 1 5
2ch DSD
IC908 (Pins 6,8)
Are there
signals?
Yes
IC908 (Pins 12,14)
Are there
signals?
Yes
IC1811 (Pin 11)
IC1815 (Pin 5)
Are there
signals?
Yes Yes
co
D
.
VSX-LX53
7
8
9 4 2 8
RXMCK,RXSD0,RXSCK,RXWS
No
Not described
HDMCK,HDBCK,HCLRCL/DSDFR,
HFDT/DSDFL
No
Check the IC908 and its peripheral
circuits.
HDMCK,HDBCK,HCLRCL/DSDFR,
HFDT/DSDFL
No
Check the IC1811 and its
peripheral circuits.
(HDI2S Signal: High)
* In case of Multich, diagnose the center,
surround and surround back in addition to
front.
0 5 8 2 9 9 4 2 8
RXSD0,RXWS
No
Not described
HFDT/DSDFL,HDLRCK/DSDFR
No
Check the IC908 and its peripheral
circuits.
HFDT/DSDFL,HDLRCK/DSDFR
No
Check the patterns between
IC1811 (Pin 11),
IC1815 (Pin 5) and IC908 (Pins 12,14).
m
8
9 9
A
B
C
9 9
D
E
F
35