Motorola MCS 2000 Service Instructions Manual page 190

Chapter 10: Digrams and Parts Lists
1
00 2
3
4
5
Vdd
C0012
R0032
6
7
100K
0.1uF
U0004-5
8
PWR_GND
R0031
VCC
9
GND
10
11
Vdd
12
13
R0433
47K
R0421
4.7K
Q0426
47K
47K
Vdd
VR0427 C0462
14V 470pF
R0106
10K
VR0428 Q0103
10V
14
15
16 00
17
18 00
19 00
20
00 21
22
23
24
25
26
27
28
29
30
31
32
Figure 10-28. Controller, Interface Blocks Diagram (2 of 2)
68P81083C20-D
* NOTE: C0469 is not placed for Open Architecture.
U0004-4
MC74AC08
12
11
13
OPEN:BS CH_EN U0004-1
MC74AC08
SW_5V 1
SC0100
0
R0023
SIGNAL_CONVERT
3
1 2 2
I1 I2 0
SPI_TX_DATA
U0004 and U0105 are used on the closed and open architecture radios, respectively. Only one IC will be
placed, but since the two ICs use the same physical pads, the net names must be the same. The signal
convention for the net names associated with these pads is the closed arch. signal name : the open arch
signal name. For example, Pin 8 of U0004 and Pin 10 of U0105 share the same physical pad which has a
net name of BUF_SPI_DATA : SECURE_SELECT. The resistors around the two ICs are placed according
to which signal (closed or open) is needed for the radio architecture.
SCI_DRIVERS_BLOCK
R0129
BUS- SCI_RX
0
BUS+ SCI_ECHO
SCI_TX BUS_SCI
BUSY_OUT BUSY_IN
BUSY
RESET_OUT RESET_IN
R0125
LH_RESET CLOSED_RESET
0
SEE SCHEMATIC FOR DETAIL
U0002
R0027
MC14053B
0
U0004-2
12
MC74AC08 X0
R0024
4
6 13
0 X1
5 +5V 2
Y0
R0034
1
0 U0004-3 Y1
5
MC74AC08 Z0
R0033
9
R0007
8 4.7K 3
0 Z1
10
R0025
0 R0026
0
VR0415 C0430
5.6V 470pF
R0121
R0130
0 0
Vdd
C0429
U0105
VR0413
MC14053B
5.6V
470pF
R0122
6 EN
12
0
X0
14
X
11 13
A X1
2
Y0
15
Y R0131
10 B 1
Y1
5
Z0 0
4 Z
3
9
C Z1
VR0414
5.6V
R0134
10K IO_BUFFERS_BLOCK
BOOT_SCI
IO2
IO3
IO4
IO5
IO6
SEE SCHEMATIC FOR DETAIL
+5V
+5V
6
C0006
EN
0.1uF C0443 C0469
C0420
14 1000pF 24pF
1000pF
X
11
A
R0005
10K
15
Y
10
B
* SEE NOTE
4
Z
R0113
9
C
0
C0470
R0111
24pF
C0428
0
R0127
470pF
0
C0472
24pF
+5V
R0002 VR0402 C0220
0.1uF
1K 5.6V
R0124
0
C0467
24pF
R0008
4.7K
+5V SW_5V
R0128
A+
C0424
0
1000pF
SW_B+
C0471
1000pF
C0431
470pF
OUT2
IN2
OUT3
IN3
OUT4
IN4
OUT5
IN5
OUT6
IN6_:_RTSBIN
MAEPF-28103-O
10-42
MIC_IN
EXTERNAL_MIC_IN
MIC_VOLTAGE
SW_B+_SENSE
B+_ON_OFF
EMER_OUT
IGNITION_SENSE
B+_IGNITION
A+_SENSE
CONTROL HEAD CONNECTOR
J0405-1
1
INT_SPK+
2 SPK-
3 MON_BUSY:RESET
4 PTT:BUS-
5 BUF_SPI_CLK:GND
6 BUF_SPI_DATA:SECURE_SELECT
7
8 RX_HI
9
MIC_IN
10 CTRL_HD1:WE
11 CTRL_HD2:KEY_FAIL
12 CH_EN:KID
13
VOLUME:GND
14 OPT_SW_B+:BUSY
15 AUX:BUS+
SW_5V
16
A+
17
SW_B+
18
C0417
1000pF
VOLUME
AUX
MON
PTT
CTRL_HD1:WE
SW_5V:RX_DATA_IN
SCI_RX
SCI_ECHO
BUSY_IN
RESET_IN
CLOSED_RESET
MOD_A_B
IO_3
OUT2
IN2
OUT3
IN3
OUT4
IN4
OUT5
IN5
OUT6
IN6
December 6, 2004