Read Panasonic CQ-MS6570LC / CQ-MS6571LC Service Manual online
6.1. Main Block
IC601 : C2CBKH000139
Pin
No.
No.
Port
Descriptions
I/O
Vol
(V)
(V)
1
BEEP
Beep output
O
0
2
BIT3
Tape mode switch
I
0
3
BIT2
Tape mode switch
I
0
4
BIT1
Tape mode switch
I
0
5
SW1/PGND
-
-
0
6
CD-ON
CD.C controller enable
O
4.9
7
CD-RESET
CD.C reset
O
4.9
8
CD-SCKM
CD.C shift clock
O
4.9
9
CD-SOM
CD serial data input
I
0
10
CD-SIM
CD serial data output
O
1.3
11
RESET
Reset
I
4.9
12
NC
No connection
-
3.5
13
GND
Ground
-
0
14
GND
Ground
-
0
15
X2
Crystal oscillator terminal
O
1.8
16
X1
Crystal oscillator terminal
I
1.4
17
REGOFF
Ground
-
0
18
REGCPU
Capacitor terminal
-
3.5
19
VDD0
+5V power supply
-
5.0
20
NC
-
-
-
21
NC
-
-
-
22
NC
-
-
-
23
TEL-MUTE
-
-
2.4
24
NC
-
-
-
25
NC
-
-
-
26
DSP-CNT
-
O
0
27
DSP-BUSY
DSP busy
O
5.0
28
DSP-RSTB
DSP rest
O
5.0
29
DSP-CE
DSP chip enable
O
0
30
DSP-CL
DSP serial clock
O
5.0
31
DSP-D0
-
-
0.3
32
DSP-DI
Power supply serial data input
O
0
33
PW-STBY
Power supply stand-by
O
5.0
34
LCD-SCK
LCD serial clock
O
0
35
LCD-DATA
LCD serial data
I/O
4.9
36
LCD-STB
LCD strobe
O
0
37
LCD-KEY.REQ
LCD key request
O
0
38
LCD-OFF
LCD-off signal
O
5.0
39
LCD-RESET
LCD reset
O
5.0
40
GND
Ground
-
0
41
VDD
+5V power supply
-
5.0
42
CD-EJ
CD eject switch
I
4.9
43
CST-EJ
Cassette tape eject switch
I
4.9
44
MODE-A
Mode encoder data
I
4.9
45
MODE-B
Mode encoder data
I
4.9
46
VOL-A
Volume encoder data
I
0
47
VOL-B
Volume encoder data
I
0
48
NC
-
I
4.9
49
NC
-
-
0
50
NC
-
I
4.9
51
RDS-MUTE
-
O
5.0
52
MUTE
Audio mute
O
0
53
SD
SD signal
I
1.2
54
PLL-SCL
PLL serial clock
O
0
55
PLL-SDA
PLL serial data
I/O
4.9
56
ST
FM stereo detection
I
0
57
MS OUT
Tape music sensor detection
I
4.9
58
NK ON/OFF
-
O
5.0
59
R-IN2
Tape motor drive rear
O
0
60
F-IN1
Tape motor drive front
O
0
61
MS-PL/FF
MS mode selection
O
0
62
DOLBY
Dolby NR
O
0
63
EQ
Metal tape mode detection
I
0
64
TSTB
CD text TSTB No
O
0
65
TCK
CD text serial clock
O
0
66
TSO
CD text serial data input
I
4.9
67
TSI
CD text serial data output
O
0
Pin
No.
No.
Port
Descriptions
I/O
Vol
(V)
(V)
68
WP
Write Protect for EEPROM
O
4.8
69
T-LOAD
Tape loading detection
I
4.8
70
F/R
Tape head change
O
0
71
NC
-
-
-
72
NC
-
-
-
73
TEST
(Ground pull-down)
-
0
74
REO-IN
Illumination detection
I
0
75
VCONT (VSM)
Field intensity detection
I
0.6
76
AMNC-IN
Temperature sensor
I
0
77
NOISE
FM noise detection
I
0
78
ST-SW1
Steering SW 1
I
4.9
79
ST-SW2
Steering SW 2
I
4.8
80
MTL
Metal tape mode selection
O
0
81
MSM
Music sensor gain control
O
0
82
VDD
+5V power supply
-
5.0
83
AVDD
+5V power supply
-
4.9
84
GND (AVSS)
Ground
-
0
85
LANIN
LAN data input
I
0
86
LANOUT
LAN data output
O
0
87
GND
Ground
-
O
88
CAM A/B
Tape side detection
I
0
89
ILL-DET
Illumination detection
I
5.0
90
PACK
CD text clock
I
4.8
91
+B-DET
Battery detection
I
4.8
92
ACC-DET
ACC detection
I
0
93
EJ-OR
(+5V pull-up)
-
4.5
94
RDS-DA
RDS data
I
2.3
95
DIV-SUB
Diversity sub ant. selection
O
0
96
DIV-MAIN
Diversity main ant. selection
O
4.9
97
RDS-CL
RDS serial clock
O
2.4
98
T-IN
Tape-in detection
I
4.6
99
END-B
Tape end detection
I
0
100
END-A
Tape end detection
I
0
6.2. Display Block
IC901 : C0HBA0000093
Pin No. Port
Descriptions
I/O
Vol.
(V)
(V)
1-13
P1-P13(NC)
-
-
-
14-73
SEG14-
SEG73
SEG73
LCD segment
O
3.2
74-77
COM4-COM1 LCD common
O
3.2
78-83
KS1-KS6
Key data output
O
5.3
84-87
KI1-KI4
Key data input
I
0
88
KI5
Ground
-
0
89
VDD
Power supply +5V
-
5.3
90
VLCD
LCD drive reference
voltage(VDD)
voltage(VDD)
I
8.3
91
VLCD1
LCD drive reference voltage 1
4.7
92
VLCD2
LCD drive reference voltage 2
3.2
93
VSS
Ground
-
0
94
TEST
Ground
-
0
95
OSC
CR Oscillator
I
0
96
RES
LCD reset
-
-
97
DO
LCD data
O
4.9
98
CE
LCD chip enable
I
0
99
CL
LCD clock
I
4.9
100
DI
LCD data
I
0
6 TERMINALS DESCRIPTION
6
CQ-MS6570LC / CQ-MS6571LC
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