93
DEH-P840MP,P8400MP,P8450MP
7.3 OPERATIONAL FLOW CHART
VCC=5V
Pin 16/17/62/99
Power ON
bsens=
L
asens=
L
bsens
Pin 73
SWVDD
←
H
Pin 40 (OEL)
Pin 79 (LCD)
ASENBO
←
H
Pin 82
Source keys
operative
Completes power-on operation.
(After that, proceed to each source operation)
←
H
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.
asens
Pin 74
7.4 CLEANING
Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools:
Portions to be cleaned
Cleaning tools
CD pickup lenses
Cleaning liquid : GEM1004
Cleaning paper : GED-008
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