Read Panasonic CQ-C1301W Service Manual online
9.1. Main Block
IC601 : YESAM276
Pin
No.
Port
Description
I/O
(V)
FM AM CD
1
(NC)
-
-
-
-
-
2
VSM
Radio signal strength
I
0
0
0
3
SD/ST
Radio station detect
I
0.3
0
0.8
4
AVSS
Ground
-
0
0
0
5
SCL
Audio control serial clock
O
4.9
4.9
4.9
6
SDA
Audio control data
O
4.9
4.9
4.9
7
AVREF
(Conecting to +5V)
-
4.9
4.9
4.9
8
CD SO
CD data output
I
2.1
2.3
1.7
9
CD SI
CD data input
O
0
0
3.3
10 CD SCK
CD clock
O
4.7
4.7
4.7
11 CDC DATA/
XM-TX SO
(NC)
(NC)
-
-
-
-
-
12 XM-RX SI (NC)
-
-
-
-
-
13 CDC CLK (NC)
-
-
-
-
-
14 CDC REM
(NC)
-
-
-
-
-
15 BZ OUT (NC)
-
-
-
-
-
16 LCD DO
LCD data
I
4.8
4.8
4.8
17 LCD DI
LCD data
O
4.7
4.7
4.7
18 LCD CLK
LCD Clock
O
4.8
4.8
4.8
19 CDC AO
CD mute
I
0
0
4.8
20 CD RST
CD reset
O
4.8
4.8
4.8
21 CD STB
CD strobe
I
3.7
3.7
3.7
22 CDC SENS
(NC)
-
-
-
-
-
23 PLL DO
PLL data
I
4.9
4.9
4.9
24 PLL CLK
PLL data clock
O
4.8
4.8
4.8
25 PLL DI
PLL data
O
0
0
0
26 PLL CE
PLL chip select
O
0
0
0
27 (NC)
-
-
-
-
-
28 (NC)
-
-
-
-
-
29 (NC)
-
-
-
-
-
30 (NC)
-
-
-
-
-
31 (NC)
-
-
-
-
-
32 (NC)
-
-
-
-
-
33 VSS1
Ground
-
0
0
0
34 RDS DATA
RDS data
I
2.8
0
0
35 S-LED (NC)
-
-
-
-
-
36 LCD CE
LCD chip enable
O
0
0
0
37 LCD 5V CNT
Display 5V control
O
0
0
0
38 EJ ILL (NC)
-
-
-
-
-
39 OP/CL (NC)
-
-
-
-
-
40 (NC)
-
-
-
-
-
41 EJECT (NC)
-
-
-
-
-
42 ROTARY 1
Rotary encoder input 1
I
4.8
4.8
4.8
43 ROTARY 2
Rotary encoder input 2
I
4.7
4.7
4.7
44 (NC)
-
-
-
-
-
45 (NC)
-
-
-
-
-
46 PANEL
Panel detection
I
4.6
4.6
4.6
47 STBY
Power IC stundby control
O
4.8
4.8
4.8
48 EEPROM CE
(+5V pull up)
-
-
-
-
49 EEPROM SK
(NC)
-
-
-
-
-
50 EEPROM DI
(NC)
-
-
-
-
-
51 EEPROM DO
(Ground pull down)
-
-
-
-
52 CD C1/2 (NC)
-
-
-
-
-
53 INV CNT
Illumination control
O
4.8
4.8
4.8
54 AMP CNT
Amp power control
O
4.8
4.8
4.8
55 ANT CNT
Antenna power control
O
4.8
4.8
4.8
Pin
No.
Port
Description
I/O
(V)
FM
AM CD
56 EXT.MUTE
External mute
O
4.8
4.8
4.8
57 MAIN CNT
Main power control
O
4.8
4.8
4.8
58 AMP MUTE
Amp mute control
O
4.8
4.8
4.8
59 AF MUTE
AF mute control
O
4.8
4.8
4.8
60 RESET
Reset
I
4.8
4.8
4.8
61 RDS CLK (NC)
-
-
-
-
-
62 (NC)
-
-
-
-
-
63 (NC)
-
-
-
-
-
64 RM DATA
Remote control data
I
4.8
4.8
4.8
65 BATT
Battery voltage detection
I
4.5
4.5
4.5
66 CDC STB/
XM DET (NC)
-
-
-
-
-
67 VSS0
Ground
-
0
0
0
68 VDD1
+5V power supply
-
4.8
4.8
4.8
69 X2
Crystal oscillator
-
2.9
2.9
2.9
70 X1
Crystal oscillator
-
2.3
2.3
2.3
71 TEST
(TEST terminal)
-
0
0
0
72 XT2
Crystal oscillator
-
2.7
2.7
2.7
73 XT1
Crystal oscillator
-
2
2
2
74 VDD0
+5V power supply
-
4.9
4.9
4.9
75 AVDD
+5V power supply
-
4.8
4.8
4.8
76 INI A
Mode setting A
I
3.2
3.2
3.2
77 INI B
Mode setting B
I
0
0
0
78 ACC
ACC detection
I
4.9
4.9
4.9
79 (NC)
(Connecting to ground)
-
0
0
0
80 LEVEL
(Connecting to ground)
-
0
0
0
9.2. Display Block
IC901 : YEAMLC75854T
Pin
No.
Port
Description
I/O
(V)
1-35 SEG1-35
LCD segment data
O
2.5
36-39 NC
-
-
-
40-43 COM1-4
LCD common
O
2.5
44
NC
Not used
-
-
45-49 KS2-6
Key scan
O
5.0
50-54 Kl1-5
Key data
I
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5.0
57
VDD1
VDD1 filter terminal
-
3.3
58
VDD2
VDD2 filter terminal
-
1.7
59
VSS
Ground
-
0
60
OSC
Oscillator terminal
-
3.9
61
DO
Key data output
O
5.0
62
CE
LCD driver chip enable
I
0
63
CLK
LCD clock
I
4.9
64
DI
LCD data
I
4.9
9 TERMINALS DESCRIPTION
5
CQ-C1301W
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