Motorola APX 1000 Detailed Service Manual page 1057

Schematics, Boards Overlays, and Parts Lists: Keypad Board M2 and M3 (PC000261A01)
8.7 Keypad Board M2 and M3 (PC000261A01)
S1
1 2
S2
1 2
S3
1 2
S4
1 2
S5
1 2
(COL,ROW)
(0,4) - HOME
(0,3) - 1
(0,2) - 4
(0,1) - 7
(0,0) - *
(1,4) - LEFT
(1,3) - 2
(1,2) - 5
(1,1) - 8
(1,0) - 0
(2,4) - DOWN
(2,3) - 3
(2,2) - 6
(2,1) - 9
(2,0) - #
(3,2) - COMPUTER
(3,1) - RIGHT
(3,0) - UP
S6 S11 (4,2) - H/L
(4,1) - SCAN
1 2 1 2
(4,0) - CALL
S7 S12
1 2 1 2
S8 S13 S16
1 2 1 2 1 2
S9 S14 S17
1 2 1 2 1 2
S10 S15 S18
1 2 1 2 1 2
V_2.755D
V_2.755D
C2003
100PF
V_2.755D
17
P2005
V_2.755D
SOFTWARE TO DETERMINE VALUE
R2500
10K
EXPANSION
DNI
18
BOARD ID P2005
S19
1 2 C1 R2531
C2
100PF 10K
100PF
DNI
DNI
S20
VCC5V
1 2
E2001
USED TO BE VSW_5.4
4
S21 P2005
1 2
C2050 C2051
0.1UF 100PF
1
P2005 3 KP_COL_A R6 0
P2005
2
P2005
KP_COL_B R7
5 0
15 P2005
P2005
16 7 KP_COL_C R8 0
P2005 P2005
19
P2005
20
P2005
G1
P2005
G2
P2005
9 KP_COL_D R9 0
P2005
VCC5V
11 KP_COL_E R10 0
P2005
KEYPAD_WHITE_LED
13
P2005
VCC5V
C2023
12PF
E2002
R2502
10K
D1
DNI
D2
MT99218UMC
MT99218UMC
R2533
2.4K R16 R19
560 560
KEYPAD_WHITE_LED
DNI
1
M1
C2052
12PF
KEYPAD CONTROL
FL1
EMIF061005M12
1 12 KP_ROW_A 6
KP_ROW_0
I1 O12 P2005
KP_COL_A 2 11 KP_COL_0
I2 O11
KP_ROW_1 3 10 KP_ROW_B 8
I3 O10 P2005
KP_COL_B 4 9 KP_COL_1
I4 O9
KP_ROW_2 5 8 KP_ROW_C 10
I5 O8 P2005
KP_COL_C 6 7 KP_COL_2
I6 O7
FL2
EMIF061005M12
KP_ROW_3 1 12 KP_ROW_D 12
I1 O12 P2005
KP_COL_D 2 11 KP_COL_3
I2
O11
KP_ROW_4 3 10 KP_ROW_E 14
I3 O10 P2005
KP_COL_E 4 9 KP_COL_4
I4 O9
5 8
I5 O8 NC
6 7
I6 O7
NC
GROUND CONTACTS
1
M2
Figure 8-114. Keypad Lite Board Overall Circuit Schematic
8-229