Keypad Board Schematic Diagram - Motorola MTP700 Detailed Service Manual

KEYPAD BOARD LAYOUT, SCHEMATICS & PARTS LIST
40 pin Main To Keypad conn
J100
BACKLIGHT+ J1-19
BACKLIGHT- J1-21
ROW3 J1-25
ROW4 J1-23
J1-27
ROW2
COL1 J1-30
COL0 J1-32
ROW1 J1-29
ROW0 J1-31
J1-22
RESET
J1-24
COL4
COL3 J1-26
COL2 J1-28
DISPLAY_RS J1-36
J1-33
CHIP SELECT
DATA J1-38
CLOCK J1-39
V3_2.775V J1-5
GND_LCD J1-40
J1-1 Shield open
J1-2
J1-3
J1-7
J1-8
J1-9
J1-10
J1-11
GND
J1-12
J1-13
J1-14
J1-16
J1-17
J1-34
J1-35
J1-37
C1 C2
0.1uF 0.1uF
ROW3
ROW4
ROW2
C3 C4 C5
150pF 150pF 150pF
COL1
COL0
ROW1
ROW0
C6 C7 C8 C9
150pF 150pF 150pF 150pF
ROW0
RESET
COL4
COL3
COL2
C10 C11 C12 C13
ROW1
150pF 150pF 150pF 150pF
ROW2
DISPLAY_RS
CHIP_SELECT
ROW3
ROW4
DATA
CLOCK
V3_2.775V
ground_lcd
C15
0.1uF
C14
0.1uF
MTP700 Portable Radio / Detailed Service Manual
KEYPAD BACKLIGHT
D1 D2 D3 D4 D5 D6 D7 D8
R1 R2 R3 R4 R5 R6 R7 R8
47 47 47 47 47 47 47 47
SEND/END
SOFT KEY DOWN SOFT KEY
LEFT RIGHT
S1 S2 S3 S4
1 2 1 2 1 2 1 2
* 7 4 1
S6 S7 S8 S9
1 2 1 2 1 2 1 2
0 8 5 2
S11 S13 S14
S12
1 2 1 2 1 2 1 2
SWITCH
# 9 6 3
S16 S17 S18 S19
1 2 1 2 1 2 1 2
LEFT
S21
1 2
COL1
COL0 COL2 COL3
FLEX to Display Board
C16 C17 C18
C23 C24
1.0uF .01uF 33pF
0.1uF 0.1uF
RESET
DISPLAY_RS
CHIP_SELECT
DATA
CLOCK
V3_2.775V
R10
47
C25 C26
MODE
0.1uF 0.1uF
S5
1 2
ground_lcd
RIGHT
S10
1 2
MENU
S15
1 2
UP
S20
1 2
COL4

Keypad Board Schematic Diagram

7 - 3
J2
J2-9 BACKLIGHT+
J2-8
BACKLIGHT-
J2-3 RESET
J2-2
DISPLAY_RS
J2-4 CHIP SELECT
J2-1 DATA
J2-7 CLOCK
J2-6 V3_2.775V
J2-10 VENDOR_ID
J2-5 GND