Panasonic CQ-TT5370A / CQ-TT3370A Service Manual ▷ View online
6 BLOCK DIAGRAM
6.1. Main Block
5
CQ-TT5370A / CQ-TT3370A
6.2. Display/SW/VOL Block
6
CQ-TT5370A / CQ-TT3370A
7.1. Main Block
IC601 : C2CBHF000062
Pin
No.
Port
Description
I/O
(V)
1
MUTE
Audio mute
O
0
2
N.C
-
-
-
3
ACC-ON
ACC power control
O
5
4
AMP-ON
AMP power control
O
5
5
CD.P.ON
CD power control
O
5
6
CD-RESET
CD reset
O
5
7
CD-ON
CD ON signal
O
5
8
CD-SCKM
Data shift clock
O
5
9
CD-SOM
Serial data input
I
3.5
10
CD-SIM
Serial data output
O
3.6
11
RESET
System reset
I
4.7
12
XT2
Crystal oscillator
I
3.1
13
XT1
Crystal oscillator
O
2.8
14
VSS
Ground
-
0
15
X2
Crystal oscillator
I
3.2
16
X1
Crystal oscillator
O
3
17
REGOFF
(Connecting to VDD)
-
5
18
REGC
(Connecting to VDD)
-
5
19
VDD
+5V power supply
-
5
20
FCONT2
Frequency control
O
5
21
FCONT1
Frequency control
O
0
22
(NC)
No connection
-
-
23
(NC)
No connection
-
-
24
(NC)
No connection
-
-
25
(NC)
No connection
-
-
26
(NC)
No connection
-
-
27
(NC)
No connection
-
-
28
(NC)
No connection
-
-
29
(NC)
No connection
-
-
30
SW1
Disc in SW
O
4.8
31
SW3
Disc out SW
O
4.8
32
LCD-CE
Not used
-
-
33
LCD-CLK
Not used
-
-
34
LCD-DI
Not used
-
-
35
LCD-DO
Not used
-
-
36
(NC)
No connection
-
-
37
(NC)
-
-
-
38
SEEK-SD/VC (Connecting to GND)
-
0
39
IF
(Connecting to GND)
-
0
40
VSS
Ground
-
0
41
VDD
+5V power supply
-
5
42
(NC)
No connection
-
-
43
KS4
Not connection
-
-
44
KS3
No connection
-
-
45
KS2
No connection
-
-
46
KS1
No connection
-
-
47
(NC)
No connection
-
-
48
KR3
Key return signal
I
0
49
KR2
Key return signal
I
0
50
KR1
Key return signal
I
0
51
(NC)
No connection
-
-
52
POWER
Power SW
I
5
53
(NC)
No connection
-
-
54
PLL-DO
PLL data input
I
2.5
55
PLL-CLK
PLL clock
O
0
56
PLL-DI
PLL data output
O
0
57
PLL-CE
PLL chip enabl
O
0
58
(NC)
No connection
-
-
59
(NC)
No connection
-
-
60
(NC)
No connection
-
-
61
(NC)
No connection
-
-
Pin
No.
Port
Description
I/O
(V)
62
(NC)
No connection
-
-
63
(NC)
No connection
-
-
64
(NC)
No connection
-
-
65
RDS-CLK
RDS clock
O
3.2
66
RDS-DATA
RDS data
I
3.5
67
(NC)
No connection
-
-
68
RMODE
Radio mode selection
O
5
69
SD.ST
B/S detection
I
5
70
(NC)
No connection
-
-
71
(NC)
No connection
-
-
72
(NC)
No connection
-
-
73
TESTMODE
(Connecting to GND)
-
0
74
VSM
Radio signal strength
I
0
75
MP
I
0
76
NOISE
Noise level detection
I
0.6
77
(NC)
No connection
-
-
78
RDS-MUTE
RDS mute
O
0
79
TEST
(VDD pull-up)
I
5
80
VOL CLK
Electronic volume clock
O
0
81
VOL DATA
Electronic volume data
O
0
82
AVDD
Analog power supply
-
5
83
AVREF1
Analog reference voltage
-
5
84
AVSS
Ground
-
0
85
RX
AVC-LAN data
I
0
86
TX
AVC-LAN data
O
0
87
(NC)
No connection
-
0
88
(NC)
No connection
-
0
89
(NC)
(Connecting to VDD)
-
5
90
+B DET
Battery level detection
I
5
91
(NC)
(Connecting to VDD)
-
6.5
92
ACC-DET
ACC level detection
I
5
93
EJECT
CD eject SW
I
5
94
(NC)
(Connecting to VDD)
-
5
95
(NC)
No connection
-
-
96
FM/AM
AM/FM mode selection
O
5
97
R.ON
Radio power on
O
5
98
(NC)
No connection
-
-
99
BEEP
Beep sound
I
0
100
(NC)
No connection
-
-
7 TERMINALS DESCRIPTION
7
CQ-TT5370A / CQ-TT3370A
8 PACKAGE AND IC BLOCK DIAGRAM
8.1. Main Block
AU101 : J3CCBC000004
IC231 : AN7550NZAWLB
IC451 : C1BB00000644
8
CQ-TT5370A / CQ-TT3370A
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