Operational Flow Chart - Pioneer DEH-P680MP Service Manual

5

7.3 OPERATIONAL FLOW CHART

QQ
3 7 63 1515 0
Power ON
ASENBO←H
Pin 80
TE
L 13942296513
communication
with Grille
microcomputer.
SWVDD←H
Pin 38
Source keys
operative
Source ON
SYSPW←H
Pin 1
Completes power-on operation.
www (After that, proceed to each source operation)
.
5
http://www.xiaoyu163.com
6
VCC=5V
Pin 14
bsens
Pin 73
bsens=L
asens
Pin 72
asens=L
DSENS
Pin 91
2V<DSENS<4.5V
Starts
x ao
y
i
6
http://www.xiaoyu163.com
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
.
DEH-P680MP/XN/UC
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
75
8