Operational Flow Chart - Pioneer KEH-P2033R Service Manual

5
QQ
3 7 63 1515 0

7.3 OPERATIONAL FLOW CHART

Backup, Acc ON
VDD=5V
Pin 68/74
TE
L 13942296513
IPPW
ASENBO
Starts communication
with Grille
microcomputer.
SWVDD
SOURCE key
SYSPW
www
Completes power-on operation.
.
(After that, proceed to each source operation.)
5
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BSENS
Pin 66
BSENS=L
ASENS
Pin 65
ASENS=L
DSENS
Pin 63
DSENS=L
H Pin 59
H Pin 58
L
Pin 39
ON
TUNER
ON
H
Pin 54
x ao
y
i
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6
8
Q Q
3 6 7 1 3
300ms
300ms
In case of the above signal, the communication
with Grille microcomputer may fail.
If the time interval is not 300msec, the oscillator
may be defective.
u163
.
KEH-P2033R/XM/EW
6
7
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
7
8
9 9
A
B
C
2 8 9 9
D
E
F
35
8