Diagnosis; Operational Flowchart - Pioneer DEH-P510UB Service Manual

1

5. DIAGNOSIS

QQ
3 7 63 1515 0

5.1 OPERATIONAL FLOWCHART

A
Power ON
Vcc = 5 V
Pin 14
BSENS
Pin 73
B
ASENS
Pin 72
DSENS
Pin 91
C
ASENBO <- H
Pin 80
TE
L 13942296513
communication
with Grille
microcomputer.
D
SWVDD <- H
Pin 38
Source keys
operative
Source ON
E
SYSPW <- H
Completes power-on operation.
(After that, proceed to each source operation)
www
F
24
1
http://www.xiaoyu163.com
2
BSENS = L
ASENS = L
2.0 V < DSENS < 4.5 V
Starts
In case of the above signal, the communication
with Grille microcomputer may fail.
If the time interval is not 500 msec, the oscillator
may be defective.
Pin 1
x ao
y
. i
DEH-P510UB/XN/UC
2
http://www.xiaoyu163.com
3
8
Q Q
3 6 7 1 3
300 ms
500 ms
u163
.
3
4
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
4
9 9
2 8 9 9