Read Panasonic CQ-C3453W Service Manual online
5
1 Technical Descriptions
1.1.
Terminals Description
1.1.1.
Main Block
IC601 : YESAM355
Pin
No
Port
Description
I/O
Vol. (V)
FM AM CD
1
BATT DET
Battery voltage detection
I
2.1
2.1 2.1
2
SYSID 1
System upgrade ID1
I
4.2
4.2 4.2
3
SYSID 2
System upgrade ID2
I
4.2
4.2 4.2
4
PLL DO
PLL data
I
4.8
4.8 4.8
5
PLL CLK
PLL data clock
O
4.8
4.8 4.8
6
PLL DI
PLL data
O
0
0
0
7
PLL CE
PLL chip select
O
0
0
0
8
LED1
LED drive control 1
O
0
0
0
9
LED2
LED drive control 2
O
0
0
0
10 RESET
Reset
I
4.8
4.8 4.8
11 XT2
Crystal oscillator
-
2.5
2.5 2.5
12 XT1
Crystal oscillator
-
2.1
2.1 2.1
13 FLMD0
-
-
0
0
0
14 X2
Crystal oscillator
-
2.7
2.7 2.7
15 X1
Crystal oscillator
-
2.3
2.3 2.3
16 REGC
(Regulator capacitor)
-
2.5
2.5 2.5
17 VSS
Ground
-
0
0
0
18 EVSS
Ground
-
0
0
0
19 VDD
+5V power supply
-
4.8
4.8 4.8
20 EVDD
+5V power supply
-
4.8
4.8 4.8
21 ROT 1
Rotary encoder input 1
I
4.8
4.8 4.8
22 ROT 2
Rotary encoder input 2
I
4.8
4.8 4.8
23 OP/CL
Panel open/close detect
I
4.7
4.7 4.7
24 (NC)
Not connected
-
-
-
-
25 LED3
LED drive control 3
O
0
0
0
26 (NC)
Not connected
-
-
-
-
27 PANEL
Panel detection
I
0
0
0
28 (NC)
Not connected
-
-
-
-
29 (NC)
Not connected
-
-
-
-
30 LCD 5V CNT Display 5V control
O
0
0
0
31 LCD CE
LCD chip enable
O
0
0
0
32 EJECT
EJECT switch
I
4.8
4.8 4.8
33 EJ ILL
LED control (EJ/ILL)
O
4.8
4.8 4.8
34 AMP CNT
Amp power control
O
4.8
4.8 4.8
35 ANT CNT
Antenna power control
O
4.8
4.8
0
36 EXT.MUTE
External mute
O
4.8
4.8 4.8
37 (NC)
Not connected
-
-
-
-
38 RM DATA
Remote control data
I
4.7
4.7 4.7
39 AF MUTE
AF mute control
O
4.8
4.8 4.8
40 INV CNT
Illumination control
O
4.8
4.8 4.8
41 (NC)
Not connected
-
-
-
-
42 HUB ACC
CNT
HUB ACC regulator control
O
0
0
0
43 INI A
Mode setting A
I
0
0
0
44 INI B
Mode setting B
I
4.8
4.8 4.8
45 INI C
Mode setting C
I
0
0
0
46 CHSTB /
SYSID4
CD changer strobe / System
upgrade ID4
upgrade ID4
I
0
0
0
47 CD MUTE
CD mute
I
0
0
4.8
48 EVENT
System upgrade EVENT
I
0
0
0
49 HUB CNT
HUB control signal
O
4.8
4.8 4.8
50 UART RX
UART serial data
I
0
0
0
51 UART TX
UART serial data
O
4.8
4.8 4.8
52 CD SI
CD data input
O
0
0
0
53 CD SO
CD data output
I
0
0
0.8
54 CD SCK
CD clock
O
4.7
4.7 4.7
55 CD RST
CD reset
O
4.8
4.8 4.8
56 CD STB
CD strobe
I
4.8
4.8 3.6
57 (NC)
Not connected
-
-
-
-
58 (NC)
Not connected
-
-
-
-
59 AVREF
(Conecting to +5V)
-
4.8
4.8 4.8
60 AVSS
Ground
-
0
0
0
61 ACC
ACC detection
I
4.9
4.9 4.9
62 (NC)
Ground
-
0
0
0
63 LEVEL
Audio level meter signal
I
0
0
1.1
64 VSM
Radio signal strength
I
0
0
0
65 (NC)
Not connected
-
-
-
-
66 SCL
Audio control serial clock
O
4.8
4.8 4.8
67 SDA
Audio control data
O
4.8
4.8 4.8
68 SD/ST
Radio station detect
I
4.8
4.8 4.8
69 MAIN CNT
Main power control
O
4.8
4.8 4.8
70 LCD CLK
LCD Clock
O
4.7
4.7 4.7
71 LCD DO
LCD data
I
4.7
4.7 4.7
72 LCD DI
LCD data
O
4.7
4.7 4.7
73 CH REM
CD changer remote
O
4.8
4.8 4.8
74 AMP MUTE
Amp mute control
O
4.8
4.8 4.8
75 STBY
Power IC stundby control
O
4.8
4.8 4.8
76 (NC)
Not connected
-
-
-
-
77 CH DATA
CD changer data
I
0
0
0
78 CH CLK /
SYSID3
CD changer clock / System
upgrade ID3
upgrade ID3
I
0
0
0
79 CD SW1
CD mechanism SW1
I
4.8
4.8 4.8
80 CD SW2
CD mechanism SW2
I
4.8
4.8 4.8
Pin
No
Port
Description
I/O
Vol. (V)
FM AM CD
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