Operational Flow Chart - Pioneer KEH-P8010R Service Manual

7.3 OPERATIONAL FLOW CHART

Power ON
VCC=5V
16pin
bsens
73pin
bsens=L
asens
74pin
asens=L
dsens
41pin
dsens=L
ASENBO H
82pin
csens
93pin
2V<CSENS<3V
Starts
communication
with Grille
microcomputer.
SWVDD H
40pin
Source keys
operative
Source ON
SYSPW H
23pin
Completes power-on operation.
(After that, proceed to each source operation)
<
- CSENS 2V , 3V CSENS
=
Source returns to the original one(before you open).
CD, MD and TAPE loading functions are available.
Keys except for EJECT key are not available.
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.
KEH-P8010R,P8015
<
=
61