Motorola MTH500 Service Manual page 110

SCHEMATIC DIAGRAMS - MTH500 Keypad Board (FCN9090A)
MTH500 Keypad Board (FCN9090A)
40 pin Main To Keypad conn
P1-19
BACKLIGHT+
19
P1-21
BACKLIGHT-
21
P1-25 ROW3
25
P1-23 ROW4
23
P1-27 ROW2
27
P1-41
41
Connector GND pins
P1-42
42
P1-30 COL1
30
P1-32 COL0
32
P1-29 ROW1
29
P1-31 ROW0
31
P1-22
RESET
22
P1-24
COL4
24
P1-26 COL3
26
P1-28 COL2
28
P1-8
PHF_GND
8
P1-4 INT_MIC-
4
P1-6 INT_MIC+
6
P1-10 PHF_MIC
10
P1-14 PHF_SENSE
14
P1-2 GND
2
P1-13 GND
13
P1-12 GND
12
P1-17 GND
17
P1-5 INT_EAR+
5
P1-3 INT_EAR-_PHF_EAR
3
P1-9 GND
9
P1-11 GND
11
P1-1 GND
1
P1-7 GND
7
P1-16 ON_OFF
16
P1-15 PTT
15
P1-36 RS
36
CHIP SELECT
P1-33
33
P1-34 GND
34
P1-37 GND
37
P1-40 GND
40
P1-18 RED LED
18
P1-20
GREEN LED
20
P1-35
2.775_DISPLAY
35
P1-38
DATA
38
P1-39
CLOCK
39
6 - 8
E1
BACKLIGHT+
BLM11B601S
ROW0
C11 C12 C10
1.u 10.n 180.p
ROW1
U3
7 5
R4 C4
FLTR_EZAST33A
8 4
R3 C3
9 3 ROW2
R2 C2
10 2
R1 C1
ROW3
U4
FLTR_EZAST33A
7 5
R4 C4
8 4
R3 C3
9 3
R2 C2
ROW4
10 2
R1 C1
COL0
COL1
R4 C4
7 5 COL4
R3 C3
8 4
R2 C2
9 3 COL2
R1 C1
10 2
C9 RESET
U5
FLTR_EZAST33A
VALUE
place close to
PHF_JACK
33.u
C1
C2
VALUE
C7
R3
VALUE
68
R6
0.
7 5
R4 C4
8 4
R3 C3
9 3
R2 C2
10 2
R1 C1
U1
FLTR_EZAST33A
R4 0.
R5 0.
U2
EZAST21
R4 C4
7 5
R3 C3
8 4
R2 C2
9 3
R1 C1
10 2
SOFT KEY
DOWN
SEND/END
LEFT
S1 S1
S1
W1 W2 G1 G2 M1 M2
* 7 4
S1 S1 S1
B1 B2 C1 C2 D1 D2
0 8
5
S1 S1 S1
H1 H2 J1 J2 K1 K2
# 9 6
S1 S1 S1
S1 S2 T1 T2 U1 U2
MUTE
S1
A1 A2
COL3
PHF_GND
J1-3
PHF_MIC
J1-1
PHF_SENSE
J1-4
PHF_EAR
J1-2
PHF_PTT
J1-5
VR1 VR2
PHF
VALUE
C8
INT_MIC+
INT_MIC-
VR3 VR4
C3
C4
VALUE VALUE
SOFT KEY
MODE
RIGHT
S1
S1
X1 X2 F1 F2
1 RIGHT
S1 S1
E1 E2 P1 P2
2 MENU
S1 S1
L1 L2 R1 R2
3 UP
S1 S1
V1 V2 Q1 Q2
LEFT
S1
N1 N2
BACKLIGHT+
FLEX to Display Board
BACKLIGHT+
BACKLIGHT-
RESET
ROW4
COL2
1 COL4
+
MK1
2 GND
GND
MIC
GND
GND
GND
INT_EAR+_R
INT_EAR-_R
GND
GND
ON_OFF
PTT
RS
CHIP SELECT
RED LED
GREEN LED
2.775_DISPLAY
DATA
CLOCK
1
P2-12
12
P2-13
13
P2-6
6
P2-14
14
P2-15
15
P2-16
16
P2-1
1
P2-7
7
P2-19
19
P2-22
22
P2-9
9
P2-20
20
P2-21
21
contact
P2-23
23
pins
P2-24
24
P2-18
18
P2-17
17
P2-5
5
P2-3
3
P2-11
11
P2-10
10
P2-8
8
P2-4
4
P2-2
2
68P02963C70-O