Panasonic CQ-DT6930ZE Service Manual ▷ View online
6.1. Main Block
IC601 : C2BBGE000295
Pin
No.
Port
Description
I/O
(V)
1
LCD-CL
Clock for LCD data
O
0
2
LCD-DI
LCD data
O
0
3
NC
No connection
-
-
4
GND
Ground
-
0
5
NC
No connection
-
-
6
NC
No connection
-
-
7
VDD
+5V power supply
-
5.0
8
NC
No connection
-
-
9
AUX IN
CD disc detection
I
0
10
CD STOP
CD stop
O
0
11
CD ON
CD power on
O
0
12
NC
No connection
-
-
13
M1-B
Tape main motor control
O
0
14
M1-A
Tape main motor control
O
0
15,
16
-
(Connecting tp ground)
-
0
17
SEEK UP
Not used
-
-
18
SEEK DWN
not used
-
-
19
NC
No connection
-
-
20
AMP ON
Ext. amp control
O
3.8
21
LATH
Data latch
O
5.0
22
A/B
Tape FF/REW switch
I
0
23
/MTL
Metal tape mode
O
5.0
24
DATA
Data for system power IC
O
0
25
CLK
Clock for system power IC
O
0
26
STBY
System power IC stand-by
O
5.0
27
/MS
TPS no sound detection
I
0
28
MS PL/FF
MS mode selection
O
0
29
T.LOAD
Tape loading detection
I
0
30
/DOLBY
Dolby control
O
0
31
CAM-A/B
Tape side detection
I
5.0
32
/T.IN
Tape insert detection
I
0
33
GND
Ground
-
0
34
TE2
Tape end detection
I
1.8
35
TE1
Tape end detection
I
2.2
36,
37
DIV1,2
Not used
-
-
38
/M2F
Tape solenoid control
O
0.5
39
NC
No connection
-
-
40
MSM
MS gain control
O
0
41
/EQ
Metal tape detection
I
0
42
BIT3
Tape moe SW
I
0
43
BIT2
Tape mode SW
I
4.9
44
BIT1
Tape mode SW
I
4.9
45
MUTE
Mute
O
0
46
BEEP
Beep output
O
0
47
VOL DAT
Data for electronic vol.
O
0
48
VOL CLK
Clock for electronic vol.
O
0
49
NC
No connection
-
-
50
TEST
(+5V pull-up)
-
4.2
51
DIV SW
Not used
-
-
52
PLL.DO
PLL data
I
4.9
53
PLL.CLK
PLL clock
O
0
54
PLL.DI
PLL data
O
0
55
PLL.CE
PLL chip enabling
O
0
56,
57
NC
No connection
-
-
58
ST
FM stereo detection
I
0
59
SD
B/S detection
I
0
60
/RESET
System reset
I
4.5
61
/ILL-DET
illumi. on detection
I
3.5
62
+B-DET
Battery level detection
I
4.5
63
ACC-DET
ACC level detection
I
4.5
64
/T.EJECT
Tape eject
I
3.4
65
AN NK
AM noise cancellation
O
3.4
66
MODE B
Encoder data input
I
0
67
MODE A
Encoder data input
I
0
68
VDD
+5V power supply
-
4.9
69
X1
Crystal oscillatorv terminal
-
2.4
70
X2
Crystal oscillatorv terminal
-
0.6
71
GND
Ground
-
0
72
XT2
Crystal oscillatorv terminal
-
2.6
73
XT1+
Crystal oscillatorv terminal
-
2.3
74
AVDD
+5V power supply
-
5.0
75
ACC 5V
+5V power supply
-
5.0
76
VSM
Radio signal level detection
I
0
77
MAIN-VOL
Main volume level
I
0
78
AMSMTA
AM radio signal level detection
I
0
79
LCD-DO
LCD data
I
4.9
80
LCD-CE
LCD driver enabling
O
0
6.2. Display Block
IC601 : YEAMLC75853
Pin
No.
Port
Description
I/O
(V)
1-20 SEG1-20
LCD segment data
O
2.6
21-33 -
Not used
-
-
34-40 SEG34-40
LCD segment data
O
2.6
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
-
-
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
5
CQ-DT6930ZE
7.1. Main Block
IC631 : YEAMLB1930MT
IC751 : AN8065SE1
7 PACKAGE AND IC BLOCK DIAGRAM
PA101 : YEP0PTA512B0
IC101 : YEAMHA12181F
6
CQ-DT6930ZE
IC201 : YEAMM62435FA
IC231 : YEAMLA4450
IC701 : C0DBZHZ00005
IC451 : YEAMLC72135C
7
CQ-DT6930ZE
7.2. Tape Block
IC1 : YEAMCX1980QK
8
CQ-DT6930ZE
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