Pioneer VSX-519V-K Service Manual page 22

1
QQ
3 7 63 1515 0
A
Step 5: DIR
Check that the S/PDIF signal is output.
Check that changes by pulling out and inserting the
digital input lines.
OPTICAL (Pin3: OPT2, Pin1: OPT1)
IC110 (Pins 3, 5)
Can
No Check the path to OUTPUT PIN of
observe the
JACK105, JACK106.
digital signal
?
(0 V ⇔ 3.3 V)
Yes
IC109 (Pins 61, 63) OPTICAL (Pin61: OPT2, Pin63: OPT1)
B
Can
No
Check the path to pins 4, 6 of
observe the
digital signal IC110 or replace IC110.
?
(0 V ⇔ 3.3 V)
Yes
COAX
IC109 (Pin 67)
Can
No
Check the path to pins 10-13
observe the
digital signal of IC110 or replace IC110.
?
C
(0 V ⇔ 3.3 V)
Yes
Check that it changes in the Playback and Pause modes of
the USB (iPod).
TE
L 13942296513
From USB Assy
IC109 (Pin 71)
Can
No
observe the
Check the path to CP105 connector.
digital signal
?
(0 V ⇔ 3.3 V)
Yes
D
Check that the data and clock signals are output.
IC109 (Pin 10) DIR_MCK (Master clock)
Is there
No
a master clock
output?
(0 V ⇔ 3.3 V)
Yes
IC109 (Pin 16) DIR_LRCK (LR clock)
E
Is there
No
a LR clock Replace IC109.
output?
(0 V ⇔ 3.3 V)
Yes
DIR_SDTO (Data)
IC109 (Pin 14)
www
Is there
No
Replace IC109.
a data
output?
(0 V ⇔ 3.3 V)
F
Yes
22
1
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2
No
Check the USB Assy.
Is the
No
voltage of PDN
IC109-pin 31
3.3 V?
Check the MAIN Assy.
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y
. i
VSX-519V-K
2
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3
8
IC109 (Pin 15) DIR_BCK (Bit clock)
Is there
No
a bit clock
output?
(0 V ⇔ 3.3 V)
Yes
Switch
IC106 (Pin 4) DAI_MCK (Master clock)
Is there
No
a master clock
output?
(0 V ⇔ 2.5 V)
Yes
DAI_LRCK (LR clock)
IC106 (Pin 7)
Is there
No
a LR clock
output?
(0 V ⇔ 2.5 V)
Q Q
3 6 7 1 3
Yes
DAI_BCK (Bit clock)
IC106 (Pin 9)
Is there
No
a bit clock
output?
(0 V ⇔ 2.5 V)
Yes
To Step 6
u163
.
3
4
2 9 9 4 2 8
Replace IC109.
1 5 0 5 8 2 9 9 4
Is the
No
voltage of
IC106-pin 1
0 V?
Check the path
Yes
between IC106-pin 1
and MAIN Assy.
Replace IC106.
*IC106 Pin1
0 V : DIR
3.3 V : HDMI
m
co
4
9 9
2 8 9 9