Diagnosis Of Pd (Power-Down) - Pioneer PRO-141FD Service Manual

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5.3 DIAGNOSIS OF PD (POWER-DOWN)

A
[1] BLOCK DIAGRAM OF THE POWER-DOWN SIGNAL
B
Output
signal
15VDD
C
VXKOFS1
VXKOFS2
Resonance center
electric potential
SCAN connector
D
disconnection
detection (upper)
SCAN connector
disconnection
detection (lower)
SCAN ASSY
VNOFS
E
VKOFS1_2
VKOFS3
VKOFS4
Resonance center
electric potential
F
66
1
2
Under voltage
detection
Under voltage
detection
Under voltage
detection
Over or under
voltage detection
OR
IC5V
VH
Under voltage
detection
15VDD
VPRST
Over or under
voltage detection
PRO-141FD
2
3
ADDRESS ASSY
(x8)
PD detecdtion
OR
DCDC Convertor
Stop
Over or under
voltage detection
Over or under
voltage detection
Under voltage
detection
Under voltage
detection
3
4
D13
to
AD1
D20
X DRIVE
ASSY
X1 D22
Y DRIVE
ASSY
Y1 D21
OR
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