Pioneer 1014TX-K - THX Select A/V Receiver Service Manual page 130

1
C
Pin 9
A
Does
it convert
3V into 5V for
11 pin input?
Yes
Pin 12
Does
it convert
3V into 5V for
B 8 pin input?
Yes
Pin 14
Does
it convert
3V into 5V for
6 pin input?
Yes
Pin 16
C
Does
it convert
3V into 5V for
4 pin input?
Yes
Pin 18
Does
it convert
3V into 5V for
D
2 pin input?
Yes
End
E
F
130
1
2
No
Replace IC952
No
Replace IC952
No
Replace IC952
No
Replace IC952
No
Replace IC952
VSX-52TX
2
3
Step 5: 5 → 3V conversion
IC951
Pin 2
Does
it convert
No
5V into 3V for
6 pin input?
Yes
Pin 5
Does
it convert
No
5V into 3V for
3 pin input?
Yes
Pin 7
Does
it convert
No
5V into 3V for
1 pin input?
Yes
End
Step 6: X'tal
IC802
Is
No
pin 2 20MHz
outputting
it ?
Yes
End
3
4
Replace IC951
Replace IC951
Replace IC951
Replace IC802 or X801
4