Operational Flow Chart - Pioneer ANH-P9R Service Manual

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7.3 OPERATIONAL FLOW CHART

QQ
3 7 63 1515 0
Power ON
VCC=5V
Pin 16/62/98/99
bsens
Pin 20
asens
Pin 74
dsens
Pin 72
TE
L 13942296513
ASENBO←H
Pin 26
SYSPW←H
Pin 37
Starts
communication
with Grille
microcomputer.
SWVDD←H
Pin 34
Source keys
operative
www
Source ON
.
Completes power-on operation.
(After that, proceed to each source operation)
5
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6
bsens=L
asens=L
dsens=L
500ms
In case of the above signal, the communication
with Grille microcomputer may fail.
If the time interval is not 500msec, the oscillator
may be defective.
x ao u163
y
i
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7
2 9
8
Q Q
3 6 7 1 3 1 5
500ms
co
.
ANH-P9R/EW
7
9 4 2 8
0 5 8 2 9 9 4 2 8
m
8
9 9
A
B
9 9
C
D
71
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