Operational Flow Chart - Pioneer DEH-P90HDD Service Manual
High power hdd/cd player with "memory stick" and fm/am tuner
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Also See for DEH-P90HDD:
- Operation manual (94 pages) ,
- Installation manual (6 pages) ,
- Operation manual (168 pages)
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7.3 OPERATIONAL FLOW CHART
Power ON
VDD=5V
Pin 16
BSENS
20pin
BSENS=L
ASENS
74pin
ASENS=L
ASNSBO←H
26pin
Starts
communication
with Grille
microcomputer.
SWVDD←H
34pin
Source keys
operative
Source ON
SYSPW←H
37pin
Completes power-on operation.
(After that, proceed to each source operation)
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-P90HDD,P900HDD
141
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