Motorola APX 2000 - Page 1053

Schematics, Boards Overlays, and Parts Lists: Keypad Board M1.5 (84012686001) 8-225
8.6 Keypad Board M1.5 (84012686001)
Figure 8-111. Keypad Board Overall Circuit Schematic (Basic)
12PF
V_2.755D
100PF
C2003
C2023
V_2.755D
P2005
V_2.755D
17
(COL,ROW)
(4,1) - SCAN
(4,2) - H/L
(4,0) - CALL
KP_ROW_2
KP_COL_4
SWITCH
SWITCH
SWITCH
S19
S20
S21
1
2
1
2
1
2
KP_ROW_1
KP_ROW_0
BOARD ID
EXPANSION
SOFTWARE TO DETERMINE VALUE
100PF
DNI
100PF
DNI
P2005
C1
C2
M1
18
1
DNI
10K
3.3K
V_2.755D
DNI
10K
10K
DNI
R2500
R2531
R2502
R2533
33
33
33
33
P2005
P2005
P2005
P2005
P2005
P2005
R6
R7
R8
R9
3
5
7
9
12
14
100PF
100PF
C30
C31
100K
100K 100K 100K
100PF
100PF
100PF
100PF
C23
C25
C26
C29
R1
R2 R4R3
KEYPAD CONTROL
EMIF061005M12
FL1
KP_ROW_AKP_ROW_0
KP_COL_E
KP_ROW_B
KP_ROW_CKP_ROW_2
KP_ROW_1
KP_COL_4
G1
1
2
3
4
5
67
8
9
10
11
12
O12
O11
GND
I1
O10
O9
O8
O7
I2
I3
I4
I5
I6
100PF
100PF
100PF
100PF
C22
C24
C27
C28
33
100K
P2005
P2005
P2005
R5
R10
6
8
10
GROUND CONTACTS
M2
P2005
1
11
P2005
P2005
P2005
P2005
P2005
P2005
P2005
P2005
1
2
15
16
19
20
G1
G2
12PF0.1UF 100PF
VCC5V
C2050 C2051 C2052
E2001
P2005
4
USED TO BE VSW_5.4
560
19217W1DAPQHY3T
19217W1DAPQHY3T
560
R16
R19
D1
D2
KEYPAD_WHITE_LED
21
21
P2005
KEYPAD_WHITE_LED
13
VCC5V
E2002