Panasonic CQ-C7413U Service Manual page 12

CQ-C7413U / CQ-C7113U
10.3. Display Block
IC900 : C2CBJH000133 [CQ-C7413U]
IC900 : C2CBJH000134 [CQ-C7113U]
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 for Flash memory
RESET
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/ GND
AVRL
36 TH Pulled up to H
DETEC
T
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 mode control 1: pulled up
to H
49 MD2 Operating mode control 2 from Flash
writer
50 NC Not connected
51 ROTA Volume-up detection from Rotary
RY 1 encoder
52 ROTA Volume-down detection from Rotary
RY 2 encoder
53 NC Not connected
I/O (V)
O 1.5
O 1.7
O 1.3
- -
- - -
- - -
O 1.3
O 0.3
- -
O 0.4
O 0.4
O 0.4
O 1.3
O 0.4
O 0
O 1.3
O 0
O 0
O 1.5
O 1.7
- 3.5
O 1.4
O 1.5
O 1.7
I 0.5
O 1.8
I 3.5
- -
O 3.5
O 0
- -
- -
- 3.5
- 3.5
- -
- 1.3
O 0
O 0
- -
- -
I 0
I 0
I 0
I 0
- 0
- 3.5
I 3.5
- 3.5
I 0
- -
I 2.5
I 2.5
- -
Pin Port Part Name & Description
No.
54 NC Not connected
55 NC Not connected
56 NC Not connected
57 NC Not connected
58 FLASH Chip enable for Flash memory
CE
59 LCD LCD chip select
CS
60 LED R
61 NC Not connected
62 NC Not connected
63 NC Not connected
64 VLCD Power control for LCD
CONT
65 NC Not connected
66 NC Not connected
67 NC Not connected
68 NC Not connected
69 OE/RD Output enable for Flash memory or
Read strobe for LCD
70 LCD Write strobe for LCD
WR
71 FLASH Write enable for Flash memory
WE
72 NC Not connected
73 LCD Reset for LCD
RESET
74 FLASH Ready/Busy from Flash memory
RY/BY
75 RST Reset
76 NC Not connected
77 NC Not connected
78 X0A GND
79 VSS GND
80 X0 System clock (12.5MHz)
81 X1 System clock (12.5MHz)
82 VCC +3.3V Power supply
83 D0 D0 in Data bus
84 D1 D0 in Data bus
85 D2 D0 in Data bus
86 D3 D0 in Data bus
87 D4 D0 in Data bus
88 D5 D0 in Data bus
89 D6 D0 in Data bus
90 D7 D0 in Data bus
91 D8 D0 in Data bus
92 D9 D0 in Data bus
93 D10 D0 in Data bus
94 D11 D0 in Data bus
95 D12 D0 in Data bus
96 D13 D0 in Data bus
97 D14 D0 in Data bus
98 D15 D0 in Data bus
99 A16 A16 in Address bus
100 A17 A17 in Address bus
12
I/O (V)
- -
- -
- -
- -
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 1.0
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 3.0
O 1.7