Panasonic CQ-ET1260A Service Manual ▷ View online
5 BLOCK DIAGRAM
5.1. Main/Display/Tape Block
5
CQ-ET1260A
5.2. CD Changer Block
6
CQ-ET1260A
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Power Supply Voltage : DC13.2V
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Output Impedance : 4
Ω
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Output Power : 0.5W
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Balance, Fader Control : Center
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Bass, Treble Control : Center
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Dolby NR: OFF
6 ALIGNMENT INSTRUCTIONS
6.1. Alignment Conditions
Note :
Do not align the FM/AM package block. When the package block is necessary, it will be supplied already aligned at the
factory.
factory.
6.2. Dolby NR Alignment
Step
Alignment Item
Test Tape
VTVM Connection
Adjust
Remarks
(1)
DOLBY NR Rch
RFKZ0038
TP201
VR201
Adjust for 388mV ±1.0dB
(2)
DOLBY NR Lch
RFKZ0038
TP301
VR301
Adjust for 388mV ±1.0dB
6.3. Alignment Points
7
CQ-ET1260A
7.1. Main Block
IC601 : C2CBKH000051
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
NC
No connection
-
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
1.5
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
RSE-CONT1
Rear source control
O
0
21
RSE-CONT2
Rear source control
O
0
22
RSE-INH
Rear source enable
O
0
23
TEL-MUTE
No connection
-
2.4
24
ADIM
(+5V pull-u)
-
4.8
25
DIV-SW
Diversity switch
-
0
26
A-INH
Audio enable
O
0
27
A-CONT1
Audio source control
O
5.0
28
A-CONT2
Audio source control
O
5.0
29
PW-CE
Power supply chip enable
O
0
30
PW-CL
Power supply serial clock
O
5.0
31
NC
No connection
-
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
DSP/SEL
(+5V pull-up)
I
4.9
49
NC
Ground
-
0
50
CD/IDC
CD/IDC selection
I
4.9
51
AM-NK
AM noise cancel
O
5.0
52
MUTE
Audio mute
O
0
53
SD
SD signal
I
1.2
54
PLL-SCL
PLL serial clock
O
5.0
55
PLL-SDA
PLL serial data
I/O
4.8
56
ST
FM stereo detection
I
4.9
57
MS OUT
Tape music sensor detection
I
4.8
58
RSE-MUTE
Rear source mute
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
ILL-PWM
PWM for illumination regurator
O
5.0
72
LCD-PWM
PWM for LCD regurator
O
0
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
7 TERMINALS DESCRIPTION
8
CQ-ET1260A
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