Pioneer VSX-2016AV-S Service Manual page 207

5
•
G
IC651 (Pin 6)
HBCK
Is there
No
abnormality at the
a bit clock
parts and patterns
input?
in the input path?
Yes
To Step 5
Step 4-3-2: When a sound is not out with the HDMI
(When the source is compression or
less than PCM48k)
SPDIF
IC301 (Pin 48)
Can
No Check the parts and patterns
observer the
in the path from the HDMI ASSY.
digital signal
?
(0 V ⇔ 3.3 V)
Yes
HDSW
IC651 (Pin 1)
No
Is the voltage
Check the path to the microcomputer.
3.3 V?
Yes
IC651 (Pin 10)
HMCK
Is there
No
abnormality at the
a master clock input
parts and patterns
(24.576 MHz)?
in the input path?
Yes
IC651 (Pin 13)
HLR
Is there
No
abnormality at the
a LR clock
parts and patterns
input?
in the input path?
Yes
IC651 (Pin 3)
HFDT
Is there
No
abnormality at the
a audio data
parts and patterns
input?
in the input path?
Yes
IC651 (Pin 6)
HBCK
Is there
No
abnormality at the
a bit clock
parts and patterns
input?
in the input path?
Yes
To Step 5
5
6
: KUXJ and KUXJCA types only
Is there
No
Replace IC651.
Is there
No
Replace IC651.
Is there
No
Replace IC651.
Is there
No
Replace IC651.
Is there
No
Replace IC651.
VSX-2016AV-S
6
7
Step 4-4: When a sound is not out with the XM
Radio
Insert the XM Antenna and check it.
IC501 (Pins 26,28) OSC
Does
No
If there is not abnormality in the path
crystal oscillate
to the crystal, replace IC501 or ICX501.
about 2 to 3 Vp-p?
Yes
XMRST3
IC501 (Pin 9)
Is the
No
Check the path to the microcomputer.
input signal
3.3 V?
Yes
IC501 (Pins 3,5) XMDI3, XMDO3
Does
No
I/O signal operate
Check the path to the microcomputer.
with 0 V to
3 V?
Yes
XMCS3
IC501 (Pin 7)
Is the
No
Check the path to the microcomputer.
input signal
0 V?
Yes
IC501 (Pins 18,19) COMM_RX_P/M
Is a
No
signal of CN501-
signal unstable at
pins 2 and 3 unstable
200mVp-p level?
at 200mVp-p level?
Yes
(About 1.2 V center)
Check the parts and
patterns in the input path.
XMSW3
IC601 (Pin 1)
Is the
No
Check the path to the microcomputer.
voltage
3.3 V?
Yes
IC651 (Pin 1) HDSW
Is the
No
Check the path to the microcomputer.
voltage
0 V?
Yes
H
7
8
Is a
No
Yes
Abnormality in XM
Antenna or replace
IC501.
207
8
A
B
C
D
E
F