Panasonic CQ-JT1010X / CQ-JS6910X Service Manual ▷ View online
5 WIRING CONNECTION
4
CQ-JT1010X / CQ-JS6910X
6 BLOCK DIAGRAM
6.1. Main Block
5
CQ-JT1010X / CQ-JS6910X
6.2. CD Servo Block
6
CQ-JT1010X / CQ-JS6910X
7.1. Main Block
IC601 : C2BBGF000090
Pin
No.
No.
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
TP
(V)
1
STBY
Power Control IC
Standby Control
Standby Control
O
4.9
4.8
4.9
4.8
2
LATCH
Power Control IC Latch
Control
Control
O
4.9
4.9
4.9
4.9
3
CD SOM
CD Serial Data Input
I
0
0
1.5
0
4
CD SIM
CD Serial Data Output
O
0
0
0
0
5
CD SCKM
CD Serial Data Clock
O
0
0
4.9
0
6
MUTE
H: Mute ON, L: Mute OFF
O
0
0
0
0
7
DATA
Power Control IC Data
O
0
0
0
0
8
CLK
Power Control IC Cloock
O
0
0
0
0
9
EQ
Metal tape Detection
I
4.8
4.8
4.8
0
10
BIT3
Tape Rotary Switch 3
I
4.8
4.8
4.8
0
11
BIT2
Tape Rotary Switch 2
I
4.8
4.8
4.8
4.8
12
BIT1
Tape Rotary Switch 1
I
0
0
0
4.8
13
VOL CK
Electronic Volume Clock
O
0
0
0
0
14
VOL DATA Electronic Volume Data
O
0
0
0
0
15
R IN
Tape Control
O
0
0
0
0
16
F IN
Tape Control
O
0
0
0
0
17
RADIIO
MUTE
MUTE
-
-
0
0
0
0
18
IFZ
IF Noise Control
I
4.8
4.8
4.8
4.8
19
DX/LOC
-
-
0
0
0
0
20
ST
H: Stereo, L: Monoral
i
0
1.8
0
0
21
SSC
Search Stop Clear
O
0
0
0
0
22
SD
Radio Signal Detect
I
0
0
0
0
23
REO IN
Reostat Signal Input
I
0
0
0
0
24
ACC DET
ACC Votage Detect
I
1.9
1.9
1.9
1.9
25
+B DET
BATT Voltage Detect
I
0
1.8
1.8
1.8
26
ILL DET
Illumi. Detection
I
2.3
2.3
2.4
2.3
27
VDD
+5V Power supply
-
4.9
4.9
4.9
4.9
28
VSM
(Connecting to Ground)
-
0
0
0
0
29
MAIN VOL (Connecting to Ground)
-
0
0
0
0
30
GND
(Connecting to Ground)
-
0
0
0
0
31
GND
(Connecting to Ground)
-
0
0
0
0
32
GND
Ground
-
0
0
0
0
33
REG CPU
CPU Regulator Terminal
-
3.4
3.4
3.4
3.4
34
VDD0
+5V Power Supply
-
4.9
4.9
4.9
4.9
35
REG OSC
Oscillate Terminal
-
4.9
4.9
4.9
4.9
36
X2
Main System X-tal
I
1.9
1.9
1.9
1.9
37
X1
Main System X-tal
O
2.1
2.1
2.1
2.1
38
GND 0
Ground
-
0
0
0
0
39
NC
-
-
-
-
-
-
40
GND 2
Ground
-
0
0
0
0
41
AM IF
AM IF Counter
I
0
2.0
0
0
42
FM IF
FM IF Counter
I
2.0
0
0
0
43
VDD PLL
+5V Power supply
-
4.8
4.8
4.8
4.8
44
FM OSC
FM Oscillator Input
I
2.5
0
0
0
45
AM OSC
AM Oscillator Input
I
0
1.8
0
0
46
GND PLL
Ground (for PLL)
-
0
0
0
0
47
EO 0
Phase Detecter Output
O
1.4
1.4
0
1.4
48
(NC)
-
-
-
-
-
-
49
IC (VPP) IC VPP Terminal
I
0
0
0
0
50
RESET
Reset Control Input
I
4.8
4.8
4.8
4.8
51
VOL B
Rotary Encoder
I
4.8
4.8
0
4.8
52
VOL A
Rotary Encoder
I
0
0
0
4.8
53
RESMONI
4.5V Detect Monitor
O
4.9
4.9
4.9
4.9
54
LCD DO
LCD Driver Data Input
I
4.8
4.8
4.9
4.8
55
LCD DI
LCD Driver Data Output
O
0
0
0
0
56
LCD CE
LCD Driver Chip Enable
O
0
0
0
0
57
LCD CLK
LCD Driver Clock
O
0
0
0
0
58
POWER
POWER Switch Signal
I
4.8
4.8
4.8
4.8
59
BEEP
Beep Sound Output
O
0
0
0
0
60
(NC)
-
-
0
0
0
0
61
PWM ILL
Illumi. Power Control
O
7.6
7.6
7.6
7.6
62
PWM LCD
LCD Power Control
O
7.6
7.6
7.6
7.6
63
M2F
Tape Motor Control
O
0
0
0
0.5
64
(NC)
-
-
-
-
-
-
Pin
No.
No.
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
TP
(V)
65
(NC)
-
-
-
-
-
-
66
(NC)
-
-
-
-
-
-
67
DIV MAIN -
-
0
0
0
0
68
DIV SUB
-
-
0
0
0
0
69
SO (NC)
-
-
0
0
0
0
70
SI (NC)
-
-
0
0
0
0
71
LCD ON
-
-
0
0
0
0
72
ILL ON
-
-
0
0
0
0
73
D IN
AVC LAN Data Output
O
0
0
0
0
74
D OUT
AVC LAN data Input
I
0
0
0
0
75
(NC)
-
-
0
0
0
0
76
MODE B
Rotary Encoder(MODE SW)
I
0
0
0
0
77
MODE A
Rotary Encode (MODE SW)
I
0
0
0
0
78
TAPE EJ
TAPE EJECT Key
I
4.8
4.8
4.8
4.8
79
CD EJ
CD EJECT Key
I
4.8
4.8
4.8
4.8
80
INTERS
4.5V Detect Interrupt
I
4.9
4.9
4.9
4.9
81
SETUP 2
-
-
-
-
-
-
82
GND1
Ground
-
0
0
0
0
83
SW1
Disc Detect Switch 1
I
0
0
3.9
0
84
SW3
Disc Detect Switch 3
I
0
0
4.2
0
85
CD ON
CD CPU Stundby
O
0
0
4.9
0
86
CD RESET CD CPU Reset
O
4.9
4.9
4.9
4.9
87
MS PL/FF Tape Mode Control
O
0
0
0
0
88
F/R
Tape A/B Side Signal
O
0
0
0
0
89
MTL
Tape Metal Control
O
0
0
0
4.8
90
DOLBY
Tape Dolby Control
O
0
0
0
4.9
91
MS OUT
Tape Music Sensor
Detection
Detection
I
4.8
4.8
4.8
0
92
MSM
Tape blank Signal
Detect Sensitivity
Detect Sensitivity
O
0
0
0
4.8
93
AMP ON
AMP Power Control
O
4.8
4.8
4.8
4.8
94
T IN
Tape In Detect
I
4.8
4.8
4.8
0
95
T LOAD
Tape Position Detect
I
4.8
4.8
4.8
0
96
A/B
Tape A/B Side Signal
I
0
0
0
0
97
END A
Tape End Detect A
I
0
0
0
0
98
END B
Tape End Detect B
I
4.7
4.7
4.7
0
99
VDD
+5V Power supply
-
4.9
4.9
4.9
4.9
100 GND
Ground
-
0
0
0
0
Note 1 : Voltage measuerments are with respect to ground,
with a voltmeter (internal resistance : 10M ohms).
with a voltmeter (internal resistance : 10M ohms).
7.2. Display Block
IC901 : C0HBA0000016
Pin
No.
No.
Port
Descriptions
I/O Vol.
(V)
1-38
SEG1-38
LCD segment data
O
2.4
39,40 SEG39,40
Not used
-
-
41-43 COM1-3
LCD common
O
2.4
44
KS1/S41
Not used
-
-
45
KS2/S42
Not used
-
-
46-49
KS2-9
Key scan
O
4.8
50
KI1
Not used
-
-
51-54 KI2-5
Key data
I
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
4.8
57
VDD1
Ground through capacitor terminal
-
3.2
58
VDD2
Ground through capacitor terminal
-
1.6
56
Vss
Ground
-
0
60
OSC
CR oscillator terminal
-
3.8
61
DO
LCD data
O
4.8
62
CE
LCD driver chip enable
I
0
63
CL
Clock for LCD
I
0
64
DI
LCD data
I
0
7 TERMINALS DESCRIPTION
7
CQ-JT1010X / CQ-JS6910X