CQ-EH1480A - Panasonic Car Audio Service Manual (repair manual). Page 6

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7.1. Main Block
IC601 : C2CBJG000477
Pin
No.
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
1
DPS RESET
DSP reset
O
5.0 5.0
0
2
IDC-ST/STP IDC start/stop
O
4.9 4.9 4.9
3
NC
No connection
-
-
-
-
4
NC
No connection
-
-
-
-
5
SEC-LED
Security LED
O
0
0
0
6
VOL B
Volume signal
I
4.4 4.4 4.4
7
VOL A
Volume signal
I
4.4 4.4 4.4
8
LCD-CLK
LCD data shift clock
O
0
0
0
9
LCD-DI
LCD data
O
4.9 4.9 4.9
10
LCD-DO
LCD data
O
0
0
0
11
RESET
System reset
I
5.0 5.0 5.0
12
XT2
Crystal oscillator
terminal
-
2.0 2.0 2.0
13
XT1
Crystal oscillator
terminal
-
1.7 1.7 1.7
14
VSS
Ground
-
0
0
0
15
X2
Crystal oscillator
terminal
-
1.8 1.8 1.8
16
X1
Crystal oscillator
terminal
-
1.6 1.6 1.6
17
REGOFF
(Connecting to ground)
-
0
0
0
18
REGC
Regurator bypass
capacitor
-
3.7 3.7 3.7
19
VDD
+5V digital power supply
-
5.0 5.0 5.0
20
AUTO/MANUA
L
L : Manual A/C, H : Auto
A/C
I
4.1 4.1 4.1
21
LH/RH
L : Right Handle, H :
Left Handle
I
4.2 4.2 4.2
22
LCD-CE
LCD driver chip enable
O
0
0
0
23
NC
No connection
-
-
-
-
24
SEC-CS
Secyrity PROM chip select
O
0
0
0
25
SEC-CLK
Security data shift clock
O
0
0
0
26
SEC-DI
Security data
O
0
0
0
27
SEC-DO
Security data
I
0
0
0
28
NC
No connection
-
-
-
-
29
NC
No connection
-
-
-
-
30
POWER
Power switch
I
4.2 4.2 4.2
31
ACC CONT2
Power control
O
5.0 5.0 5.0
32
ACC CONT
Power control
O
5.0 5.0 5.0
33
STBY
Power Amp stand-by
O
5.0 5.0 5.0
34
NC
No connection
-
-
-
-
35
SWD +B
SWD +B control
O
5.0 5.0 5.0
36
PLL-CE
PLL controller chip
enable
O
0
0
0
37
PLL-DO
PLL data
I
0
0
0
38
PLL-CLK
PLL data shift clock
O
0
0
0
39
PLL-DI
PLL data
O
5.2 5.2 5.2
40
VSS
Ground
-
0
0
0
41
VDD
+5V digital power supply
-
5.0 5.0 5.0
42
AMNK(NC)
Not used
-
-
-
-
43
ST-IND
FM stereo detection
I
0.4 1.9
0
44
RED-LED
Red LED on/off
O
0
0
0
45
GREEN LED
Green LED on/off
O
0
0
0
46
NC
No connection
-
-
-
-
47
WP(2D/4D)
(VDD pull-up)
-
5.0 5.0 5.0
48
DSP DATA
DSP data
O
5.2 5.2 5.2
49
DSP CLK
DSPdata shift clock
O
5.0 5.0 5.0
50
NC
No connection
-
-
-
-
51
DATA-CONT
CD audio signal gate
on/off
O
0
0
0
52
DATA-IN
CD audio signal
I
0
0
0
53
NC
No connection
-
-
-
-
54
SYSACC
GA-NET power control
O
5.0 5.0 5.0
55
SET-SEC2
(Ground pull down)
-
0
0
0
56
SET-SEC1
(Ground pull down)
-
0
0
0
57-63
-
No connection
-
-
-
-
64
ILL-IN
Illumination signal
detection
I
4.2 4.2 4.3
65
NC
No connection
-
-
-
-
Pin
No.
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
66
A/C-IN
Air conditioner detection
I
3.4
0
0
67-69 NC
No connection
-
-
-
-
70
AUX-IN
(VDD pull-up)
-
5.0 5.0 5.0
71,72 NC
No connection
-
-
-
-
73
IC/VPP
(Connecting to ground)
-
0
0
0
74
REMO
Remote signal
I
0
4.9 4.9
75
CD-ON(NC)
No connection
-
-
-
-
76
DSP INT
DSP interrupt signal
I
0.7 3.4 3.4
77-79 NC
No connection
-
-
-
-
80
VSM
Radio signal strength
I
0
1.1 0.7
81
AMP MUTE
Power Amp mute
O
0
0
0
82
AVDD
+5V analog power supply
-
5.0 5.0 5.0
83
AVREF1
+5V analog reference
voltage
-
5.1 5.1 5.1
84
AVSS
Analog ground
-
0
0
0
85
GA-IN
GA-NET data input
I
0
0
0
86
GA-OUT
GA-NET data output
O
0
0
0
87
ACC-DET
ACC level detectio
I
5.0 5.0 5.0
88
TELE IN
Telephone mute
I
5.0 5.0 5.0
89
ILLUMI-
Illumination (-)
detection
I
0
0
0
90
GAIN
(+5V pull-up)
-
5.1 5.1 5.1
91
IDC EJECT
IDC eject switch
I
4.3 4.3 4.3
92
BAT-DET
Battery level detection
I
5.0 5.0 5.0
93
TEL/EJ-INT Tel. mute/eject interrupt
I
4.6 4.6 4.6
94
IDC-SI
IDC communication data
O
4.1 4.1 2.6
95
NC
No connection
-
-
-
-
96
NC
No connection
-
-
-
-
97
IDC-CLK
Clock for IDC
communication data
O
4.9 4.9 4.9
98
IDC-SO
IDC communication data
I
1.4 1.6 1.4
99
LED-DIM2
LCD power control
O
5.0 5.0 5.0
100
CD-RESET
IDC reset
O
4.9 4.9 4.9
Note : Voltage measuerments are with respect to ground, with
a voltmeter (internal resistance : 10M ohms).
7 TERMINALS DESCRIPTION
6
HONDA / CQ-EH1480A
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