Diagnosis; Operational Flowchart - Pioneer DEH-P310UB Service Manual

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5. DIAGNOSIS

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3 7 63 1515 0

5.1 OPERATIONAL FLOWCHART

TE
L 13942296513
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Power ON
Vcc = 5 V
Pin 16
BSENS
Pin 18
BSENS = L
ASENS
Pin 20
ASENS = L
DSENS
Pin 19
DSENS = L
ASENBO <- H
Pin 40
Starts
communication
with Grille
microcomputer.
SWVDD <- H
Pin 49
Source keys
operative
Source ON
SYSPW <- H
Pin 48
x ao
y
i
Completes power-on operation.
(After that, proceed to each source operation)
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Q Q
3 6 7 1 3
300 m
300 m
In case of the above signal, the communication
with Grille microcomputer may fail.
If the time interval is not 300 msec, the oscillator
may be defective.
u163
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DEH-P310UB/XS/UC
7
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
7
8
9 9
A
B
C
2 8 9 9
D
E
F
33
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