Panasonic CQ-EN3781AD Service Manual ▷ View online
6.2. Main Block-2
6
NISSAN / CQ-EN3781AD
6.3. Sub Block
7
NISSAN / CQ-EN3781AD
6.4. Connector Block
8
NISSAN / CQ-EN3781AD
7.1. Main Block
IC301 : C2DBYY000255
Pin
No.
Port
I/O
Description
1
AVREF0
- Standard voltage input for A/D converter
2
AVSS
- GND for A/D-D/A converter (same as VSS port)
3
NC
- No connection
4
NC
- No connection
5
AVREF1
- Standard voltage input for D/A converter
6
NC
- No connection
7
NC
- No connection
8
IC
-
-
9
VDD
- Positive power supply terminal for interior
10 REGC
- Regulator output stable capacity connection
11 VSS
- GND potential for interior
12 X1
I
Oscillator connection for main clock
13 X2
O Oscillator connection for main clock
14 RESET
I
System reset input (H: operation mode L: reset)
15 XT1
-
-
16 XT2
- No connection
17 NC
- No connection
18 CD_
EJECT
I
CD eject detection signal input
19 MD_
EJECT
I
MD eject detection signal input
20 DRST
I
No connection
21 ILL_ CNT
I
ILL control signal (PWM)
22 PKB
I
PKB signal
23 REV
I
REV signal
24 NC
- No connection
25 HP_ON
- No connection
26 ILL
I
ILL signal
27 CD_RST
O CD deck reset signal
28 M_CAN_
TXD
O M_CAN sending data
29 M_CAN_
RXD
I
M_CAN receiving data
30 NC
- No connection
31 V_CAN_
TXD
O V_CAN sending data
32 V_CAN_
RXD
I
V_CAN receiving data
33 EVSS
- GND potential for exterior (same potential as
VSS)
34 EVDD
- Positive power supply for exterior (same
potential as VDD)
35 U1C-TXD O Data output for communication with U1C (UART
38.4Kbps)
36 U1C-RXD
I
Data input for communicaiton with U1C (UART
38.4Kbps)
38.4Kbps)
37 WDT_
CNT
O External WDT control signal
38 WDT_
CLK
O External WDT clock signal
39 NC(DDI)
- No connection
40 NC(DDO)
- No connection
41 NC(DCK)
- No connection
42 NC(DMS)
- No connection
43 NC
- No connection
44 NC
- No connection
45 NC
- No connection
46 SYS_
MUTE
O SYS mute control signal output
47 ASEL
- No connection
48 NAVI_ON
I
Signal for DOP navi connection detection
49 TEST_A
I
Non diver antenna detection terminal H: diver L:
non-diver
non-diver
Pin
No.
Port
I/O
Description
50 TEST_B
I
Terminal for STRG_SW detection for 04IT H: 06
stereo control L: 04
stereo control L: 04
51 NC
- -
52 AMP_ON
O Exterior amp power on signal
53 P_AMP_
MUTE
- No connection
54 P_AMP_
STBY
- No connection
55 HB_ON
O Hi blend on signal
56 MAIN_
CNT
O Main power control signal
57 NC
- No connection
58 NC
- No connection
59 TEST_R
XD
I
For debug (receiving)
60 TEST_TX
D
O For debug (sending)
61 MUTE_C
NT
O MUTE circuit power control signal
62 NC
- No connection
63 NC
- No connection
64 ANT+
O Antenna amp power on signal
65 MD_RST
- No connection
66 MD_ON
- No connection
67 NC
- No connection
68 NC
- No connection
69 NC
- No connection
70 NC
- No connection
71 SI
- No connection
72 SO
- No connection
73 SCK
- No connection
74 +B DET
I
+B power supply detection
75 ACC_
DET
I
ACC power supply detection
76 IGN_DET
I
IGN power supply detection
77-
102
NC
- No connection
103 BVSS
- GND for bus interface
104 BVDD
- Positive power supply for bus interface
105 NC
- No connection
106 NC
- No connection
107 NC
- No connection
108 NC
- No connection
109 NC
- No connection
110 FLMD1
I
Operation mode setting 2
111
-
128
NC
- No connection
129 STSW_A
I
Steering switch signal input
130 STSW_B
I
Steering switch signal input
131 ILL_DC
I
ILL_CONT signal; DC value signal (analog
input)
input)
132 INITIAL_
A
I
Terminal A for model discrimination
133 INITIAL_
B
I
Terminal B for model discrimination
134 INITIAL_
C
I
Terminal C for model discrimination
135 NC
- No connection
136 NC
- No connection
137 NC
- No connection
138 NC
- No connection
139 INITIAL_
D
I
Terminal D for model discrimination
140 INITIAL_
E
I
Terminal E for model discrimination
7 TERMINALS DESCRIPTION
9
NISSAN / CQ-EN3781AD
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