Pioneer VSX-2016AV-S Service Manual page 202

1
A
B
1st DSP 1.2 V
IC101 (Pin 1, etc.)
No
Is the voltage
1.2 V?
Yes
2nd Block 3.3 V
IC903 (Pin 1)
B
No
Is the voltage
5.2 V?
Yes
IC903 (Pin 3)
No
Is the voltage
3.3 V?
C
Yes
IC201 (Pin 3,etc.) 2nd DSP 3.3 V
No
Is the voltage
3.3 V?
D
Yes
OSC Inverter
IC551 (Pin 8)
No
Is the voltage
3.3 V?
Yes
Audio MCK Buffer
IC291 (Pin 14)
E
No
Is the voltage
3.3 V?
Yes
IC301 (Pins 21,38) DIR
No
Is the voltage
3.3 V?
Yes
F
202
1
2
• : KUXJ and KUXJCA types only
Check the parts and patterns
in the path.
Check the parts and patterns
in the path.
Is IC903 No
abnormally hot?
Replace IC903.
Yes
The output and GND may be short-
circuited. Check the path between
them.
Check the parts and patterns
in the path.
Check the parts and patterns
in the path.
Check the parts and patterns
in the path.
Check the parts and patterns
in the path.
2
3
IC481 (Pin 7)
Is the voltage
3.3 V?
Yes
IC651 (Pin 16)
Is the voltage
3.3 V?
Yes
IC601 (Pin 16)
Is the voltage
3.3 V?
Yes
IC501 (Pin 4, etc.)
Is the voltage
3.3 V?
Yes
IC904 (Pins 1,2)
Is the voltage
3.3 V?
Yes
IC904 (Pin 4)
Is the voltage
1.25 V?
Yes
IC201 (Pin 8, etc.)
Is the voltage
1.25 V?
C
VSX-2016AV-S
3
4
A/D Converter
No
Check the parts and patterns
in the path.
Logic IC
No
Check the parts and patterns
in the path.
Logic IC
No
Check the parts and patterns
in the path.
XM/DT IC
No
Check the parts and patterns
in the path.
2nd Block 1.25 V
No
Check the parts and patterns
in the path.
No
Is IC904 No
abnormally hot?
Replace IC904.
Yes
The output and GND may be short-
circuited. Check the path between
them.
2nd DSP 1.25 V
No
Check the parts and patterns
in the path.
4