Diagnosis; Operational Flowchart - Pioneer CX-3287 Service Manual

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5. DIAGNOSIS

5.1 OPERATIONAL FLOWCHART

A
Power ON
Vcc = 1.2 V
PVcc = 3.3 V
BSENS
B Pin 108
BSENS = L
ASENS
Pin 107
ASENS = L
DSENS
C
Pin 42
DSENS = L
Starts
communication
with Grille
microcomputer.
D
SWVDD <- H
Pin 137
Source keys
operative
E
Source ON
SYSPW <- H
Pin 8
Completes power-on operation.
F
(After that, proceed to each source operation)
14
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2
Vcc : Pin 15, 26, 51, 93, 104, 130
PVcc : Pin 3, 11, 22, 34, 44, 58, 81, 89, 100, 119, 126, 135
300 ms
300 ms
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.
DEH-X5600BT/XNEW5
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3
3
4
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