Pioneer VSX-1017AV-K Service Manual page 38

1
Step 4: 3 V to 5 V conversion
IC952 (Pin 18)
A
Do
No
convert 3 V into
5 V for pin 2
input?
Yes
IC952 (Pin 17)
Do
No
convert 3 V into
5 V for pin 3
input?
B
Yes
IC952 (Pin 16)
Do
No
convert 3 V into
5 V for pin 4
input?
Yes
IC952 (Pin 15)
C
Do
No
convert 3 V into
5 V for pin 5
input?
Yes
IC952 (Pin 14)
Do
No
convert 3 V into
5 V for pin 6
input?
D
Yes
IC952 (Pin 13)
Do
No
convert 3 V into
5 V for pin 7
input?
Yes
IC952 (Pin 12)
Do
E
No
convert 3 V into
5 V for pin 8
input?
Yes
IC952 (Pin 11)
Do
No
convert 3 V into
5 V for pin 9
input?
Yes
F
38
1
2
Replace IC952.
Replace IC952.
Replace IC952.
Replace IC952.
Replace IC952.
Replace IC952.
Replace IC952.
Replace IC952.
VSX-1017AV-K
2
3
IC951 (Pin 3)
Do
No
convert 3 V into
Replace IC951.
5 V for pin 2
input?
Yes
IC951 (Pin 6)
Do
No
convert 3 V into
Replace IC951.
5 V for pin 5
input?
Yes
IC951 (Pin 8)
Do
No
convert 3 V into
Replace IC951.
5 V for pin 9
input?
Yes
IC951 (Pin 11)
Do
No
convert 3 V into
Replace IC951.
5 V for pin 12
input?
Yes
To Step 5
Step 5: 5 V to 3 V conversion
IC953 (Pin 3)
Do
No
convert 5 V into
Replace IC953.
3 V for pin 2
input?
Yes
IC953 (Pin 8)
Do
No
convert 5 V into
Replace IC953.
3 V for pin 9
input?
Yes
IC953 (Pin 11)
Do
No
convert 5 V into
Replace IC953.
3 V for pin 12
input?
To Step 6
3
4
4