Pioneer Elite VSX-81TXV, Руководство по обслуживанию

Страница: 205 / 272

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