DOWNLOAD Panasonic CX-VN7881AJ Service Manual ↓ Size: 2.36 MB | Pages: 23 in PDF or view online for FREE

Model
CX-VN7881AJ
Pages
23
Size
2.36 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio / AUTOMOTIVE AFTERMARKET
File
cx-vn7881aj.pdf
Date
PREV: Panasonic CX-VN7580A Service Manual

Panasonic CX-VN7881AJ Service Manual ▷ View online

6 BLOCK DIAGRAM
5
NISSAN / CX-VN7881AJ
7.1. Main Block
IC601 : C2DBKK000016
Pin
No.
Port
Description
I/O FM/
AM
DVD TV/
AUX
1
AVREF0 Reference impressed
voltage 0 for A/D converter
-
3.3
3.3
3.3
2
AVSS
GND for A/D converter
-
0
0
0
3
NC
No connection
-
-
-
-
4
NC
No connection
-
-
-
-
5
AVREF1 Reference impressed
voltage 1 for A/D converter
-
3.3
3.3
3.3
6
NC
No connection
-
-
-
-
7
NC
No connection
-
-
-
-
8
IC /
FLMD0
For Software data backup
(PULL DOWN usually)
-
0
0
0
9
VDD
Positive power supply
-
3.3
3.3
3.3
10
REGC
Power supply of regulator
stop
-
2.6
2.6
2.6
11
VSS
System Ground
-
0
0
0
12
X1
Main system clock (4.0MHz
crystal)
-
1.2
1.2
1.2
13
X2
Main system clock (4.0MHz
crystal)
-
1.2
1.2
1.2
14
RESET
System reset input
-
3.3
3.3
3.3
15
XT1
Unused (1k
Ω
PULL DOWN)
-
0
0
0
16
NC (XT2)
-
-
-
-
-
17
NC
No connection
-
-
-
-
18
+B DET
H: +B ON L: +B OFF
I
3.3
3.3
3.3
19
ACC
DET
H: ACC ON L: ACC OFF
I
3.3
3.3
3.3
20
DRSET
For Software data backup
(10k
Ω
pull down)
-
0
0
0
21
EJECT
H: EJ SW OFF L: EJ SW
ON (100k
Ω
pull up)
I
3.3
3.3
3.3
22
SI
For microcomputer writing
(10k
Ω
pull down)
O
0
0
0
23
SO
For microcomputer writing
O
0
0
0
24
CLK
For microcomputer writing
(10k
Ω
pull down)
O
0
0
0
25
DVD SO DVD communication data
output
O
3.2
3.2
3.2
26
DVD SI
DVD communication data
input
I
3
3
3
27
MUTE
CUT
DVD DECK MUTE CUT
L: Deck speech output
mode
O
3.3
0
3.3
28
DVD
RST
-
-
-
-
-
29
NC
(PWM)
No connection
-
-
-
-
30
Factory
test
H: Ordinary mode (100k
Ω
)
L: Factory test mode
I
3.3
3.3
3.3
31
CAN
OUT
CAN-BUS output
O
3.4
3.4
3.4
32
CAN IN
CAN-BUS input
I
4.4
4.4
4.4
33
EVSS
0V
-
0
0
0
34
EVDD
VDD (+B3.3V)
-
3.3
3.3
3.3
35
TX
Factory test communication
data output
-
0
0
0
36
RX
Factory test communication
data input
-
0
0
0
37
PD
ADAC reset output
O
0
3.3
0
38
CS
ADAC chip selection output
O
3.3
3.3
3.3
39
U39
DDI (Software data backup)
O
0
0
0
40
U40
DDO (Software data
backup)
O
0
0
0
41
U41
DCK (Software data
backup)
O
0
0
0
Pin
No.
Port
Description
I/O FM/
AM
DVD TV/
AUX
42
U42
DMS (Software data
backup)
O
0
0
0
43
SMUTE
ADAC software mute output
H: Mute beginning
L: Mute release
O
0
0
0
44
MODE
SEL
Audio mode select signal
H:VTR L: Deck
O
3.3
3.3
3.3
45
LAN OFF LAN Audio OPEN signal
output H:ON L:OFF
O
0
0
3.3
46
NC
No connection
-
-
-
-
47
ACC ON ACC_ON signal output
H:ON L:OFF
O
3.3
3.3
3.3
48
DZFL1
ADAC detection input
H: When 0 input data
detection
I
0
0
0
49
V
CONT1
External output NTSC
change 1 LL: Unused
HL:TV LH: Unused HH:DVD
O
3.3
3.3
3.3
50
V
CONT2
External output NTSC
change 2 LL: Unused
HL:TV LH: Unused HH:DVD
O
0
3.3
0
51
CDTI
ADAC communication data
output
O
0
0
0
52
CCLK
ADAC communication clock
output
O
3.3
3.3
3.3
53
NC
No connection
-
-
-
-
54
NC
No connection
-
-
-
-
55
NC (IEC
CUT)
No connection
-
-
-
-
56
REMO-
DATA
Infrared rays remote control
data input (100k
Ω
pull-up)
I
3.3
3.3
3.3
57
FAN ON No connection
-
-
-
-
58
LPF SEL No connection
-
-
-
-
59
NC
No connection
-
-
-
-
60
NC
No connection
-
-
-
-
61
NC
No connection
-
-
-
-
62
NC
No connection
-
-
-
-
63
NC
No connection
-
-
-
-
64
NC
No connection
-
-
-
-
65
NC
No connection
-
-
-
-
66
WR1
47 k
Ω
pull-down
-
0
0
0
67
RD
47 k
Ω
pull-up
-
3.3
3.3
3.3
68
ASTB
47 k
Ω
pull-down
-
0
0
0
69
BVSS
0V
-
0
0
0
70
BVDD
VDD(+B3.3V)
-
3.3
3.3
3.3
71
DACMUT
E
Analog 6CH mute
H: mute on L: mute off
O
0
0
0
72
BUS
MUTE
Audio Bus 2CH mute
H: mute on L: mute off
O
0
0
0
73
HP
MUTE
H/P 2CH mute
H: mute on L: mute off
O
0
0
0
74
NC
No connection
-
-
-
-
75
NC
No connection
-
-
-
-
76
IC /
FLMD1
Unused (10 k
Ω
pull-down)
O
0
0
0
77
-
Specification switch port
1(reserve)
I
3.3
3.3
3.3
78
-
Specification switch port
2(reserve)
I
3.3
3.3
3.3
79
-
Specification switch port
3(reserve)
I
3.3
3.3
3.3
80-89 NC
No connection
-
-
-
-
90
ADPG
Video adaptor detection
(47k
Ω
pull-up)
L: Video adapter
H: No video adapter
I
3.3
3.3
3.3
91
-
Destination switch 1
-
0
0
0
7 TERMINALS DESCRIPTION
6
NISSAN / CX-VN7881AJ
Pin
No.
Port
Description
I/O FM/
AM
DVD TV/
AUX
92
IND
Disk indicator ON output 1
H: Indicator lighting
L: Indicator turning off
I
0
3.3
0
93
-
Destination switch 2
-
0
0
0
94
DECK
DET
DVD DECK power supply
supervisory signal
H:DECK_PWR-OK
L:DECK_PWR-NG
I
3.3
3.3
3.3
95
DECK4
ON
DC/DC IC(TPS5130) control
signal output 4
O
0
0
0
96
DECK3
ON
DC/DC IC(TPS5130) control
signal output 3
O
0
0
0
97
DECK2
ON
DC/DC IC(TPS5130) control
signal output 2
O
3.3
3.3
3.3
98
DECK1
ON
DC/DC IC(TPS5130) control
signal output 1
O
3.3
3.3
3.3
99
-
iIlumi control signal input
H: Day screen (Ilmi off)
L: Night screen (Ilmi on)
I
0
0
0
100
DEG IN
Temperature sensor input
for FAN drive (Unused
47k
Ω
pull-up)
I
3.3
3.3
3.3
7
NISSAN / CX-VN7881AJ
IC203, 205 : C0JBZS000003
IC507 : C1AB00000003
8 IC BLOCK DIAGRAM
IC50 : C0DBAMG00015
8
NISSAN / CX-VN7881AJ
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