Operational Flow Chart - Pioneer DEH-1350B Service Manual

7.3 OPERATIONAL FLOW CHART

Power ON
VDD=5V
68pin
bsens
64pin
BSENS=L
asens
63pin
ASENS=L
dsens
65pin
DSENS=L
ADPW←H
20pin
SWVDD←L
41pin
Source keys
operative
Source ON
SYSPW←H
42pin
Completes power-on operation.(After that, proceed to each source operation.)
Starts communication with Grille microcomputer.
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.
DEH-2350,1350
55