Pioneer VSX-2016AV-S Service Manual page 205

5
E •
IC601 (Pin 5)
Is there
No
abnormality at the
a bit clock
parts and patterns
input?
in the input path?
Yes
IC651 (Pin 5)
Is there
No
abnormality at the
a bit clock
parts and patterns
input?
in the input path?
Yes
To Step 5
Step 4-2: When a sound is not out with the analog
signal input
IC481 (Pins 1,2)
RIN, LIN
Is there
No
observe the analog
a analog input
input signal at
signal?
CN402-pins 1, 3?
Yes
Check the parts and patterns
in the path on the DSP Assy.
there poor contact
Check the analog signal path
of the main unit.
IC601 (Pin 1)
XMSW3
No
Is the voltage
Check the path to the microcomputer.
0 V?
Yes
IC651 (Pin 1)
HDSW
No
Is the voltage
Check the path to the microcomputer.
0 V?
Yes
5
6
: KUXJ and KUXJCA types only
Is there
No
Replace IC301
or IC651.
Is there
No
Replace IC301
(IC601) or IC651.
Can
No
Yes
Is not
No
of CN402-pins
1,3?
Replace CN402.
Yes
VSX-2016AV-S
6
7
IC481 (Pin 11)
DIRM
Is there
Is there
No
a master clock
a DIRM output
input?
of IC301-pin 23
(24.576 MHz)
Yes
Check the parts and
patterns in the input path.
Is the voltage
of PDN input signal
at IC301-pin 31
5 V?
Yes
Does the
IC301-pin 29
XTO oscillate?
If there is not failure of a pattern,
replace IC301 or IC481 or IC651
(IC601).
IC601 (Pin 11)
Is there
Is there
No
a master clock abnormality at the
input? parts and patterns
in the input path?
(24.576 MHz)
Yes
IC651 (Pin 11)
Is there Is there
No
abnormality at the
a master clock
input? parts and patterns
(24.576 MHz) in the input path?
Yes
IC481 (Pin 10)
DIRL
Is there
Is there
No
a DIRL output
a LR clock
of IC301-pin 24
input?
Yes
Check the parts and
patterns in the input path.
Replace IC301 or IC481 or IC651
(IC601).
F
7
8
No
?
Yes
No
Check the path to
the microcomputer.
Is the
No
DRERR3 output
of IC301-pin 36
0 V?
No
No
Replace IC301
or IC601.
No
Replace IC301
(IC601) or IC651.
No
?
Yes
205
8
A
B
C
D
E
F