Pioneer VSX-2016AV-S Service Manual page 201

5
•
A
Install a XM antenna
IC502 (Pin 5)
Is the
No
voltage more Replace the XM antenna.
than 5 V?
Yes
CN501 (Pin 1)
Is the
No
voltage more Replace the XM antenna.
than 5 V?
Yes
Remove the XM antenna
IC901 (Pin 1) 1st Block 3.3 V
No
Check the parts and patterns
Is the voltage
in the path.
5.2 V?
Yes
IC901 (Pin 3)
No
Is the voltage
abnormally hot?
3.3 V?
Yes
The output and GND may be short-
circuited. Check the path between
them.
IC101 (Pin 7,etc.) 1st DSP 3.3 V
No
Check the parts and patterns
Is the voltage
in the path.
3.3 V?
Yes
LATCH1
IC103 (Pin 20)
No
Check the parts and patterns
Is the voltage
in the path.
3.3 V?
Yes
5
6
: KUXJ and KUXJCA types only
Is IC901 No
Replace IC901.
Yes
VSX-2016AV-S
6
7
LATCH2
IC104 (Pin 20)
No
Check the parts and patterns
Is the voltage
in the path.
3.3 V?
Yes
Decoder
IC105 (Pin 8)
No
Check the parts and patterns
Is the voltage
in the path.
3.3 V?
Yes
FLASH ROM
IC106 (Pin 37)
No
Check the parts and patterns
Is the voltage
in the path.
3.3 V?
Yes
IC107 (Pins 9,27) SRAM
No
Check the parts and patterns
Is the voltage
in the path.
3.3 V?
Yes
IC109 (Pin 5) Logic IC
No
Check the parts and patterns
Is the voltage
in the path.
3.3 V?
Yes
IC902 (Pins 1,2) 1st Block 1.2 V
No
Check the parts and patterns
Is the voltage
in the path.
3.3 V?
Yes
IC902 (Pin 4)
No
Is IC902
Is the voltage
abnormally hot?
1.2 V?
Yes
The output and GND may be short-
circuited. Check the path between
them.
B
7
8
No
Replace IC902.
Yes
201
8
A
B
C
D
E
F