Diagnosis; Operational Flowchart - Pioneer AVH-P5150DVD/XN/RC Service Manual

5

5. DIAGNOSIS

5.1 OPERATIONAL FLOWCHART

Power ON
Vdd = 3.3 V
Pin 9
BSENS
Pin 75
ASENS
Pin 74
ACCPW
Pin 7
Starts
communication
with Display
microcomputer.
SWVDD
Pin 37
Source keys
operative
SYSPW
Pin 6
Completes power-on operation.
(After that, proceed to each source operation)
5
6
H
500 ms
H
In case of the above signal, the communication
with Grille microcomputer may fail.
If the time interval is not 500/300 msec, the oscillator
may be defective.
Source ON or
Back Camera ON
H
AVH-P5150DVD/XN/RC
6
7
300 ms
7
8
A
B
C
D
E
F
33
8