NO
SYMBOL
I/O
FUNCTION
1.
DB0
I/O
Data Bus
2.
DB1
I/O
Data Bus
3.
DB2
I/O
Data Bus
4.
DB3
I/O
Data Bus
5.
DB4
I/O
Data Bus
6.
DB5
I/O
Data Bus
7.
DB6
I/O
Data Bus
8.
DB7
I/O
Data Bus
9.
LED+
P
Power Supply for LED
10.
RW
I
Read/Write Execution Control
11.
E
I
Read/Write Start Signal
12.
A0
I
Register Select input
13.
RESET
I
Reset Input Pin
14.
VSS (LED-)
P
GND
15.
VDD
P
Power Supply for Logic
INTERFACE PIN FUNCTION
C14
C0
C15
LCD PANEL
INTERFACE
LED
BLOCK DIAGRAM
LCD MODULE
IC AX6120
48 * 15 DOTS with 38 ICONS
A0
RESET
VSS
VDD
E
LED+
D7
D5
RW
D4
D3
D2
D1
D0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
D6
..
..
..
..
.
C0
C14
C15
S0
S49
..
..
..
..
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1
KEY & CONTROL BOARDS
TABLE OF CONTENTS
LCD Module - Block diagram .......................................... 6-1
LCD Module - Interface Pin Function .............................. 6-1
Top Key Part - Layout & Circuit diagram ......................... 6-2
SACD LED Part - Layout & Circuit diagram .................... 6-3
Volume & IR Part - Component & Chip layout ................ 6-4
Volume & IR Part - Circuit diagram ................................. 6-5
Headphone Part - Layout & Circuit diagram ................... 6-6
Power ON/OFF Part - Layout & Circuit diagram ............. 6-6
Electrical parts list ............................................................ 6-7
6-1
