Panasonic CQ-LS8180A Service Manual ▷ View online
5 BLOCK DIAGRAM
5
CQ-LS8180A / CQ-LS8181A
6.1. Main Block
IC601 : C2CBHG000067
Pin
No.
Port
Description
I/O
(V)
1
BEEP
Buzzer output
O
0
2
BIT3
Tape mode SW
I
4.8
3
BIT2
Tape mode SW
I
4.8
4
BIT1
Tape mode SW
I
0
5
FIN
Tape motor control
O
0
6
RIN
Tape motor control
O
0
7
MUTE
System mute
O
0
8
NC
No connection
-
-
9
NC
No connection
-
-
10
NC
No connection
-
-
11
RESET
Reset input
I
4.8
12
X2
Crystal oscillator terminal
-
1.8
13
X1
Crystal oscillator terminal
-
1.3
14
GND
Ground
-
0
15
X2
Crystal oscillator terminal
-
1.7
16
X1
Crystal oscillator terminal
-
1.4
17
REGOFF
(Connecting to ground)
-
0
18
REGCPU
Not used
-
-
19
VDD0
+5V power supply
-
5.0
20
FCONT2
Frequency control
O
4.9
21
FCONT1
Frequency control
O
0
22
SD
B/S detection
I
0
23
ST
FM stereo detection
I
0
24
PLL-DO
PLL data input
I
4.8
25
PLL-CLK
Shift clock for PLL data
O
0
26
PLL-DI
PLL data output
O
0
27
PLL-CE
PLL chip enable
O
0
28
NK ON/OFF
Not used
-
-
29
NC
No connection
-
-
30
NC
No connection
-
-
31
VOL-DATA
Electronic volume data
O
0
32
VOL-CLK
Data shift clock
O
0
33
LCD-CLK
Data shift clock
O
0
34
LCD-DO
LCD data input
I
4.8
35
NC
No connection
-
-
36
LCD-CE
LCD chip enable
O
0
37
LCD-DI
LCD data output
O
0
38
VOLA
Volume SW contact A
I
4.8
39
VOLB
Volume SW contact B
I
4.8
40
GND
Ground
-
0
41
VDD
+5V power supply
-
5.0
42
NC
No connection
-
-
43
MODEA
Mode SW contact A
I
0
44
MODEB
Mode SW contact B
I
0
45
NC
No connection
-
-
46
NC
No connection
-
-
47
NC
No connection
-
-
48
NC
No connection
-
-
49
NC
No connection
-
-
50
NC
No connection
-
-
51
SW/9Pro
(Connecting to ground)
-
0
52
9K/5K
Radio tuning step selection
I
0
53
NC
No connection
-
-
54
NC
No connection
-
-
55
NC
No connection
-
-
56
CLK
Power control IC clock
O
0
57
STBY
Power control IC stand-by
O
5.0
58
LATCH
Power control IC data latch
O
5.0
59
DATA
Power control IC data
O
0
60
NC
No connection
-
-
61
NC
No connection
-
-
62
NC
No connection
-
-
63
NC
No connection
-
-
64
MSOUT
TPS detection
O
4.8
65
NC
No connection
-
-
66
NC
No connection
-
-
67
NC
No connection
-
-
68
MS-PL/FF
MS mode selection
O
0
69
T.LOAD
Tape loading detection
I
0
70
DOLBY
Dolby NR on/off
O
5.0
71
NC
No connection
-
-
72
NC
No connection
-
-
73
TEST
(GND pull-down)
-
0
74
NC
No connection
-
-
75
NC
No connection
-
-
76
NC
No connection
-
-
77
A/B
Tape forward-reverse SW
I
0
78
MTL
Metal tape mode on/off
O
0
79
CAM A/B
Tape side detection
I
0
80
MSM
MS gain control
O
4.9
81
NK-IN
Not used
-
-
82
VDD
+5V power supply
-
5.0
83
AVDD
+5V power supply
-
4.8
84
GND
Ground
-
0
85
LANIN
LAN data input
I
0
86
LANOUT
LAN data output
O
0
87
GND
Ground
-
0
88
NC
No connection
-
-
89
ILL-DET
ILL detection
I
0
90
EQ
Metal tape detection
I
4.8
91
+B-DET
Battery level detection
I
4.9
92
ACC-DET
ACC level detection
I
4.9
93
TAPE-EJ
Tape eject SW
I
4.9
94
T.IN
Tape detection
I
0
95
END-B
Tape end detection
I
0
96
END-A
Tape end detection
I
0
97
NC
No connection
-
-
98
NC
No connection
-
-
99
NC
No connection
-
-
100
NC
No connection
-
-
Note 1 : Voltage measuerments are with respect to ground,
with a voltmeter (internal resistance : 10M ohms).
with a voltmeter (internal resistance : 10M ohms).
6.2. Display Block
IC601 : YEAMLC75853W
Pin
No.
Port
Description
I/O
(V)
1-33 SEG1-20
LCD segment data
O
2.6
34-40 -
Not used
-
-
41-43 COM1-3
LCD common output
O
2.6
44
S41
Not used
-
-
45-49 KS1-6
Key scan signal
O
5.2
50
KI1
Not used
-
0
51-54 KI2-5
Key data input
I
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5.2
57
VDD1
Ground through capacitor
-
3.5
58
VDD2
Ground through capacitor
-
1.8
59
VSS
Ground
-
0
60
OSC
CR oscillator
-
4.1
61
DO
key data output
O
5.2
62
CE
Chip enable
I
0
63
CLK
LCD clock
I
0
64
DI
LCD data input
I
0
6 TERMINALS DESCRIPTION
6
CQ-LS8180A / CQ-LS8181A
7 PACKAGE AND IC BLOCK DIAGRAM
7.1. Main Block
PA150 : YEP0PTA512B0
IC451 : YEAMLC72135C
7
CQ-LS8180A / CQ-LS8181A
IC201 : C1BB00000284
IC651 : YEAMH12187ER
IC702 : YEAMLB1930MT
IC701 : C0DBZHZ00006
IC704 : AN8065SE1
8
CQ-LS8180A / CQ-LS8181A
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