22
VSX-819H-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
Replace IC109.
Yes
IC109 (Pin 15)
DIR_BCK (Bit clock)
N
o
Is there
a bit clock
output?
(0
V
⇔
3.3
V
)
Yes
IC106 (Pin 4)
DAI_MCK (Master clock)
Is there
a master clock
output?
(0
V
⇔
2.5
V
)
Yes
IC106 (Pin 7)
DAI_LRCK (LR clock)
Is there
a LR clock
output?
(0
V
⇔
2.5
V
)
Yes
IC106 (Pin 9)
DAI_BCK (Bit clock)
*IC106 Pin1
0
V
: DIR
3.3
V
: HDMI
Is there
a bit clock
output?
(0
V
⇔
2.5
V
)
Replace IC106.
Check the path
between IC106-pin 1
and MAI
N
Assy.
N
o
N
o
N
o
N
o
Is the
voltage of
IC106-pin 1
0
V
?
Yes
Switch
Step 5: DIR
Check the path to pins 10-13
of IC110 or replace IC110.
Check the path to CP105 connector.
Replace IC109.
Check the path to OUTPUT PI
N
of
JACK105, JACK106.
IC110 (Pins 3, 5)
OPTICAL (Pin3: OPT2, Pin1: OPT1)
Check that the S/PDIF signal is output.
Check that changes by pulling out and inserting the
digital input lines.
Can
observe the
digital signal
?
N
o
(0
V
⇔
3.3
V
)
Yes
IC109 (Pin 67)
COAX
Can
observe the
digital signal
?
N
o
Yes
Yes
Check that the data and clock signals are output.
Check that it changes in the Playback and Pause modes of
the USB (iPod).
(0
V
⇔
3.3
V
)
(0
V
⇔
3.3
V
)
(0
V
⇔
3.3
V
)
Yes
IC109 (Pin 71)
From USB Assy
Can
observe the
digital signal
?
N
o
(0
V
⇔
3.3
V
)
Check the path to pins 4, 6 of
IC110 or replace IC110.
IC109 (Pins 61, 63) OPTICAL (Pin61: OPT2, Pin63: OPT1)
Can
observe the
digital signal
?
N
o
Yes
(0
V
⇔
3.3
V
)
Check the MAI
N
Assy.
IC109 (Pin 10)
DIR_MCK (Master clock)
N
o
N
o
Yes
Is there
a master clock
output?
IC109 (Pin 16)
DIR_LRCK (LR clock)
N
o
Is there
a LR clock
output?
Replace IC109.
(0
V
⇔
3.3
V
)
Yes
IC109 (Pin 14)
DIR_SDTO (Data)
N
o
Is there
a data
output?
Is the
voltage of PD
N
IC109-pin 31
3.3
V
?
Check the USB Assy.
N
o
To Step 6
Summary of Contents for VSX-819H-K - AV Receiver - Gloss
Page 19: ...19 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F 4 4 U COM BLOCK DIAGRAM P C B SUB ASSY FRONT C ...
Page 49: ...49 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 55: ...55 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 61: ...61 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F J CN401 M CP107 A FL FL FL SL SL SL C C C ...
Page 71: ...71 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F P 2 2 CN805 R 116 ...
Page 73: ...73 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F R CP105 A CP705 C ...
Page 77: ...77 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F B A SIDE B B P C B SUB ASSY P T ...
Page 83: ...83 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F J 01 SIDE A SIDE B ...
Page 87: ...87 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F L SIDE A ...
Page 89: ...89 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F L SIDE B ...
Page 95: ...95 VSX 819H K 5 6 7 8 5 6 7 8 A B C D E F P N SIDE B ...