Diagnosis; Operational Flowchart - Pioneer AVH-P3200BTXNUC Service Manual

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5. DIAGNOSIS

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5.1 OPERATIONAL FLOWCHART

A
/BSENS : Pin20
B
/ASENS : Pin21
/SOCSTB : Pin91
C
ASENBO : Pin35
TE
L 13942296513
DDCCLK : Pin92
D
VD5, 8 : Pin113, 114
E
SYSPW : Pin130
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RESET
VDD : Pin11
VDD = 3.3 V?
/BSENS = L?
Y
/ASENS = L?
Y
/STB : Pin90
/STB = H?
Y
/SOCSTB = H?
Y
ASENBO <- H
DDCCLK <- Clock Out
(Frequency of 370 kHz)
VD5 <- H
VD8 <- H
Starts
Communication
with Display microcomputor
Source Keys operartive
Source ON
SYSPW <- H
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y
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AVH-P3200BT/XNUC
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8
Standby
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3
4
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9