Operational Flow Chart - Pioneer DEH-P9600MP Service Manual

1

7.3 OPERATIONAL FLOW CHART

A
B
ASENBO H
C
communication
microcomputer.
SWVDD H
Pin 40 (OEL)
Pin 79 (LCD)
Source keys
D
operative
SYSPW H
E
Completes power-on operation.
(After that, proceed to each source operation)
F
88
1
2
Power ON
VCC=5V
Pin 16/62/99
Pin 73
L
Pin 74
L
Pin 82
Starts
with Grille
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.
Source ON
Pin 23
DEH-P9600MP/XN/EW
2
3
300ms
3
4
4