Operational Flow Chart - Pioneer KEH-P7015 X1M/ES Service Manual

KEH-P7015,P6015
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7.3 OPERATIONAL FLOW CHART

Power ON
VDD=5V
19pin
bsens
93pin
bsens=L
asens
92pin
asens=L
dsens
2pin
dsens=L
adpw←H
22pin
TE
L 13942296513
ASENBO←H
71pin
CSENSE
77pin
2V<CSENS<4V
Starts
communication
with Grille
microcomputer.
SWVDD←H
23pin
Source keys
operative
Source ON
www
SYSPW←H
21pin
.
Completes power-on operation.
(After that, proceed to each source operation)
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- 2V<CSENS<4V ,
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.
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2 9
8
Q Q
3 6 7 1 3
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.
.
9 4 2 8
1 5 0 5 8 2 9 9 4
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co
9 9
2 8 9 9