56
DEH-2300,230,23
7.3 OPERATIONAL FLOW CHART
VDD=5V
68pin
Power ON
BSENS=L
ASENS=L
DSENS=L
bsens
64pin
asens
63pin
dsens
65pin
ADPW←H
20pin
SWVDD←L
41pin
Source keys
operative
Completes power-on operation.(After that, proceed to each source operation.)
SYSPW←H
42pin
Starts communication with Grille microcomputer.
Source ON
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.