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CQ-EA1070L, CQ-EA1071L, CQ-EA1072L, CQ-EA1073L, CQ-EA1074L - Panasonic Car Audio Service Manual (repair manual). Page 9

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8.1. Main Block
IC701 : C2CBKA000001
Pin
No.
Port
Descriptions
I/O
(V)
FM
(V)
AM
(V)
CD
(V)
TP
(v)
1
/RSTOUT
Not used
-
-
-
-
-
2
NMI
(Connecting to GND)
-
0
0
0
0
3
VSS
GND
-
0
0
0
0
4
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
5
ILL1
Illumi control
O
0
0
0
0
6
ILL2
Iiiumi. control
O
2
2
1.2 1.2
7
TUNER1.ON
Radio power on/off
O
4.8 4.8 4.8 4.8
8
TUNER2.ON
Radio power on/off
O
4.8 4.8 4.8 4.8
9
LCD.ADR
LCD address
O
0
0
0
0
10
LCDRST
LCD reset
O
4.8 4.8 4.8 4.8
11
LCD.CS
LCD selection
O
0
0
0
0
12
LCD/E2.CLK
LCD/SEC. data shift
clock
O
0
0
0
0
13
LCD/E2.DT.
IN
LCD/SEC. serial data
O
0
0
0
0
14
E2.DT.OUT
Security data
I
0
0
0
0
15
E2.CS
Security IC selection
O
0
0
0
0
16
AUDIO.ON
Audio power on/off
O
4.8 4.8 4.8 4.8
17
VSS
GND
-
0
0
0
0
18
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
19
I2C.DATA
DSP/AF.SW data
O
4.8 4.8 4.8 4.8
20
I2C.CLK
Data shift clock
O
4.8 4.8 4.8 4.8
21
F/E.DATA
Tuner control data
O
0
0
0
0
22
F/E.CLK
Data shift clock
O
0
0
0
0
23
F/E.STP
Tuner control
O
2.9 3.7 3.8 3.8
24
F/E.ENA
Tuner pack enable
O
0
0
0
0
25
VSS
GND
-
0
0
0
0
26
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
27
FIELD.1
Field
strength
detection
I
0.9 0.6 0.6 0.6
28
N.C.1.1
Noise level detection
I
0
0
0
0
29
PHOTO
Photo sensor data
I
1.2 0.8 1.9 1.6
30
MP.1
FM
multipath
interference
I
2.9
0
0
0
31
DEV.1
FM deviation
I
0
2.3 2.3 2.3
32
ANT.V
ANT1 current intensity
I
0.5 0.5 0.5 0.5
33
IF.V
ANT2 current intensity
I
0
0
0
0
34
FIELD.2
Field
strength
detection
I
1.2 1.2 1.2 1.2
35
VA.REF
+5V power suooly
-
4.8 4.8 4.8 4.8
36
VA.GND
GND
-
0
0
0
0
37
NC.1.2
Noise level detection
I
0
0
0
0
38
MP.2
FM
multipath
interference
I
0
0
0
0
39
6.1V DET
+B level detection
I
4.8 4.7 4.6 4.8
40
+B MONI.
+B level detection
I
2.9 2.8 2.7 2.8
41
VSS
GND
-
0
0
0
0
42
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
43
BAT.DET
+B level detection
I
4.8 4.6 4.7 4.8
44
P.SW
Power switch
I
4.8 4.3 4.5 4.7
45
T.MUTE
Tape mute
O
4.8 4.6 4.6 4.8
46
T.LOAD
Tape loading
I
0
0
0
0
47
CD.A.MUT/C
D.SW1
CD start/stop
O
0
0
0
0
48
STBY
Power Amp stand-by
O
4.8 4.8 4.8 4.8
49
LCD.MONI
LCD
I
4.8 4.3 4.4 4.7
50
RDS.CLK
RDS data shift clock
I
1.5 1.5 1.5 1.5
51
VSS
GND
-
0
0
0
0
52
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
53
DAB.RX0
Not used
-
-
-
-
-
54
DAB.TX0
Not used
-
-
-
-
-
55
RDS2.CLK
RDS data shift clock
I
2.5 2.5 2.5 2.5
56
RDS2.DATA
RDS data
I
2.4 2.4 2.4 2.4
57
RDS.DATA
RDS data
I
1.1 1.1 1.1 1.1
58
PLL.DI
PLL data
O
0
0
0
0
59
PLL.DO
PLL data
I
2.5
0
0
0
60
PLLCLK
PLL clock
O
0
0
0
0
61
CDC.REMO
CD CH remote data
O
4.8
0
0.2
0
Pin
No.
Port
Descriptions
I/O
(V)
FM
(V)
AM
(V)
CD
(V)
TP
(v)
62
CDC.DATA
CD CH data
I
4.8 4.8 4.8 4.8
63
KLIN.OUT
K-LINE data
O
4.8
0
4.8 4.8
64
KLIN.IN
K-LINE data
I
4.8 4.8 4.8 4.8
65
PLL.CE
PLL chip enable
O
0
0
0
0
66
CDC.CLK
CD CH clock
I
4.8 4.8 4.8 4.8
67
BOSE
BOSE Amp connection
I
4.8 4.6 4.8 4.6
68
VDD
+5V power supply
-
48
4.8 4.8 4.8
69
VSS
GND
-
0
0
0
0
70
N.CNTR
NAVI. control
I
4.8 4.6 4.7 4.6
71
EXT.AMP.ON
Ext Amp power control
O
0
4.8 4.8 4.8
72
CAN.N.ERR
CAN-BUS error
I
4.8
0
4.8 4.8
73
CAN.EN
CAN-BUS driver enable
O
0
4.8
0
0
74
CAN.STB
BUS data strobe
O
0
1.9
0
0
75
CAN.RX
CAN-BUS data
I
4.8 2.2 2.2 4.8
76
CAN.TX
CAN-BUS data
O
4.8
0
2.4 4.8
77
CD.RST
CD reset
O
4.8 4.8 4.8 4.5
78
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
79
VSS
GND
-
0
0
0
0
80
/RD
Not used
-
-
-
-
-
81
/WR/WRL
Not used
-
-
-
-
-
82
/READY
Not used
-
-
-
-
-
83
ALE
Not used
-
-
-
-
-
84
/EA
(+5V pull-up)
-
4.8 4.8 4.8 4.8
85
MUTE
Mute
O
4.8 4.8 4.8 4.8
86
KO.0
Key scan
O
0
0.8 0.8 0.8
87
KO.1
Key scan
O
0
0.8 0.7 0.8
88
KO.2
Key scan
O
0
0.8 0.7 0.8
89
KO.3
Key scan
O
0
0.8 0.7 0.8
90
KO.4
Key scan
O
0
0.8 0.7 0.8
91
BIT.1
Tape mode SW
I
0
0
0
4.8
92
BIT.2
Tape mode SW
I
0
0
0
4.8
93
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
94
VSS
GND
-
0
0
0
0
95
BIT.3
Tape mode SW
I
0
0
0
0
96
KI.0
Key data
I
0
0
0
0
97
KO.5
Key scan
O
0.7 0.8 0.7 0.8
98
EN.B
Tape end detection
I
0
0
0
0
99
A/B.IN
Tape A/B side detection
I
0
0
0
0
100 AF.MUTE
AF mute
O
0
0
0
0
101 NC
No connection
-
-
-
-
-
102 NC
No connection
-
-
-
-
-
103 M2
Tape main motor control
O
0
0
0
4.8
104 M2F
Tape main motor control
O
0
0
0
4.8
105 T.IN
Tape detection
I
0
0
0
4.8
106 F.IN
Tape control
O
0
0
0
0
107 EN.A
Tape end detection
I
0
0
0
0
108 KI.1
Key data
I
0
0.6
0
0.7
109 KI.2
Key data
I
1
0.7
0
0.7
110 KI.3
Key data
I
1
0.7 0.7 0.7
111 VDD
+5V power supply
-
4.8 4.8 4.8 4.8
112 VSS
GND
-
0
0
0
0
113 KI.4
Key data
I
1
0.7 0.7 0.7
114 R.IN
Tape control
O
0
0
0
0
115 CD.SIMO
CD serial data
O
0
0
0
0
116 CD STP/STA
CD start/stop
O
0
0
4.8
0
117 CD.SOMI
CD serial data
I
0
4.8 4.3
0
118 CD.SCKM
CD data shift clock
O
4.8 4.8 4.8 4.8
119 CD.ON
CD power control
O
4.8 4.8 4.8 4.8
120 CC.ON
Tape power control
O
4.8
0
0
4.8
121 VDD
+5V power supply
-
4.8 4.8 4.8 4.8
122 VSS
GND
-
0
0
0
0
123 XTAL2
Crystal oscillator
-
2.2 2.2 2.2 2.2
124 XTAL1
Crystal osillator
-
2.1 2.1 2.1 2.1
125 VSS
GND
-
0
0
0
0
126 XTAL3
Crystal oscillator
-
1.2 1.2 1.2 1.2
127 XTAL4
Crystal oscillator
-
2
2
2
2
128 /RSTIN
Reset input
I
4.7 4.7 4.7 4.7
Note : Voltage measuerments are with respect to ground, with
a voltmeter (internal resistance : 10M ohms).
8 TERMINALS DESCRIPTION
9
AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L
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