Panasonic CQ-TT5370F / CQ-TT3370F Service Manual ▷ View online
6 BLOCK DIAGRAM
6.1. Main Block
5
CQ-TT5370F / CQ-TT3370F
6.2. Display/SW/VOL Block
6
CQ-TT5370F / CQ-TT3370F
7.1. Main Block
IC601 : C2CBHF000345
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-TT5370F / CQ-TT3370F
8 PACKAGE AND IC BLOCK DIAGRAM
8.1. Main Block
IC231 : AN7550NZAWLB
IC451 : C1BB00000644
ANTI-
ALIASING
FILTER
OSCILLATOR
AND
DIVIDER
BIPHASE
SYMBOL
DECODER
QUALITY BIT
GENERATOR
DIFDERENTIAL
DECODER
57kHz
BANDPASS
(8th ORDER)
COSTAS LOOP
VARIABLE AND
FIXED DIVIDER
FIXED DIVIDER
CLOCKED
COMPARATOR
CLOCK
REGENERATION
AND SYNC
REFERENCE
VOLTAGE
RECONSTRUCTION
FILTER
4
MUX
SCOUT
CIN
VDDA
Vref
VSSA
MODE
TEST
VSSD
VDDD
OSCO
OSCI
T57
RDCL
RDDA
QUAL
1
2
16
8
5
7
3
6
15
9
10
14
12
13
11
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
Vp1
IC471 : YEAMSAA6579
8
CQ-TT5370F / CQ-TT3370F
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