Panasonic CQ-C7353N Service Manual page 6

Pin Port
No.
99 ANT CONT Power control for antenna
motor
100 EP CS(NC) Not connected
4.1.2. Display Block
IC900 ： C2CBYY000150
Pin Port Part Name & Description
No.
1 A18 A18 in Address bus
2 A19 A19 in Address bus
3 A20 A20 in Address bus
4 NC Not connected
5 LED G -
6 LED B -
7 A0 A0 in address bus for LCD
8 A1 A1 in Address bus
9 VSS GND
10 A2 A2 in Address bus
11 A3 A3 in Address bus
12 A4 A4 in Address bus
13 A5 A5 in Address bus
14 A6 A6 in Address bus
15 A7 A7 in Address bus
16 A8 A8 in Address bus
17 A9 A9 in Address bus
18 A10 A10 in Address bus
19 A11 A11 in Address bus
20 A12 A12 in Address bus
21 VCC +3.3V Power supply
22 A13 A13 in Address bus
23 A14 A14 in Address bus
24 A15 A15 in Address bus
25 SIN0 Serial data from Main CPU or
Flash writer
26 SOT0 Serial data to Main CPU or
Flash writer
27 SCK0 Serial clock for Flash writer
28 NC Not connected
29 FRASH RESET Reset for Flash memory
30 KS1 Key scan 1
31 NC Not connected
32 NC Not connected
33 AVCC +3.3V Power supply
34 AVRH +3.3V Power supply
35 AVSS/AVRL GND
36 TH DETECT Pulled up to H
37 KS2 Key scan 2
38 KS3 Key scan 3
39 NC Not connected
40 VSS GND
41 KI5 Key-in return 5
42 KI4 Key-in return 4
43 KI3 Key-in return 3
44 KI2 Key-in return 2
45 NC Pulled down to L
46 NC Pulled up to H
47 MD0 Operating mode control 0 from
Flash writer
48 MD1 Operating
pulled up to H
49 MD2 Operating mode control 2 from
Flash writer
50 NC Not connected
51 ROTARY 1 Volume-up
Rotary encoder
Description I/O
FM AM CD
O 5.2 5.2 5.2
- -
I/O
O
O
O
-
-
-
O
O
-
O
O
O
O
O
O
O
O
O
O
O
-
O
O
O
I
O
I
-
O
O
-
-
-
-
-
-
O
O
-
-
I
I
I
I
-
-
I
mode control 1: -
I
-
detection from I
(V) Pin Port
No.
52 ROTARY 2
53 NC
- -
54 NC
55 NC
56 NC
57 NC
58 FLASH CE
59 LCD CS
(V)
60 LED R
1.5 61 NC
1.7 62 NC
1.3
63 NC
- 64 VLCD CONT
- 65 NC
- 66 NC
1.3
67 NC
0.3 68 NC
- 69 OE/RD
0.4
70 LCD WR
0.4
71 FLASH WE
0.4
72 NC
1.3
73 LCD RESET
0.4
74 FLASH RY/BY Ready/Busy from Flash mem-
0
1.3
75 RST
0
76 NC
0
77 NC
1.5
78 X0A
1.7
79 VSS
3.5
80 X0
1.4
81 X1
1.5
82 VCC
1.7
83 D0
0.5
84 D1
85 D2
1.8
86 D3
3.5 87 D4
-
88 D5
3.5
89 D6
0
90 D7
- 91 D8
-
92 D9
3.5
93 D10
3.5
94 D11
- 95 D12
1.3
96 D13
0
97 D14
0 98 D15
- 99 A16
-
100 A17
0
0
0
4.1.3. CD Servo Block
0
0
3.5 Pin Port
No.
3.5
1 AVSS
3.5 2 LD-MT
3 CNT
0
4
5 LD-EJ
-
2.5
6 AMUTE
6
Part Name & Description
Volume-down detection from
Rotary encoder
Not connected
Not connected
Not connected
Not connected
Not connected
Chip enable for Flash memory
LCD chip select
Not connected
Not connected
Not connected
Power control for LCD
Not connected
Not connected
Not connected
Not connected
Output enable for Flash mem-
ory or Read strobe for LCD
Write strobe for LCD
Write enable for Flash memory
Not connected
Reset for LCD
ory
Reset
Not connected
Not connected
GND
GND
System clock (12.5MHz)
System clock (12.5MHz)
+3.3V Power supply
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
D0 in Data bus
A16 in Address bus
A17 in Address bus
IC101 ： YESAM337
Descriptions
GND
Loading Motor drive IC control 1
Loading Motor drive IC control 2
- Not Connected
Loading Motor drive IC control
(Eject)
Mute signal output
I/O (V)
I 2.5
- -
- -
- -
- -
- -
O 3.4
O 3.4
- -
- -
- -
O 3.4
- -
- -
- -
- -
O 3.4
O 3.4
O 3.4
- -
O 3.4
I 3.4
I 3.5
- -
- -
- -
- -
I 1.3
O 1.5
- 3.5
I/O 0.9
I/O 0.9
I/O 1.1
I/O 0.9
I/O 1
I/O 1.1
I/O 1.1
I/O 0.9
I/O 0.9
I/O 0.9
I/O 0.9
I/O 0.5
I/O 0.9
I/O 0.7
I/O 0.7
I/O 0.7
O 3
O 1.7
I/O (V)
- 0
O 3.2
O 3.2
- -
O 0
O 0