AVH-X7700BT/XNUC
24
1
2
3
4
1
2
3
4
C
D
F
A
B
E
5. DIAGNOSIS
5.1 OPERATIONAL FLOWCHART
RESET
VDD = 3.3V?
ASENBO
←
H
VDCNT5 , VDCNT8
←
H
LCDPW, GEPW11
←
H
Starts
Communication
with Display microcomputer
Source keys operate
↓
Source ON
SYSPW
←
H
EV58CNT
←
H
Y
Y
Y
VDD : pin 26
ASENBO : pin 112
MECHA STB : pin 31
VDCNT5 : pin 77
SYSPW : pin 74
VDCNT8 : pin 78
Standby
DDCCLK
←
Clock Out
(Frequency of 413.9kHz)
DDCCLK : pin 73
Y
Y
LCDPW : pin 81
GEPW11 : pin 37
EV58CNT:pin 62
dsens
= L?
dsens
: pin123
bsens
= L?
asens
= L?
bsens
: pin 124
asens
: pin 125
MECHA STB = H?
Summary of Contents for AVH-X7700BT/XNEW5
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