Motorola ASTRO XTS 3000 Service Manual page 184

R537
DIGITAL 5V REGULATOR
UNSW_B+
1.0
L501
R509
1.0
C220 C174 C175 C176 C177
0.1uF 33uF 33uF 0.1uF 330pF
9
VOUT
8
CC
2
B+CNTL SHDN
R185 R186
B+SENSE 7
SS
10K 470K
R184
C178
0.1uF
10K
R510
R187
UNSW_B+
0
100K
B+SENSE
R519
R188
100K
100K
1
R189
4
100K
C182
Q105
470pF
5 6 7 8
MICEN
R190
SPKEN
C219
10K
SDO
0.1uF
R196
+5VA
47K
C186
R193
C190
390
4.7uF +5VA
R194
330pF
3.6K
C187
R195
2 8
INTMIC
1
U714-1
4.7K
3 TL062
.0047uF
4
+5VA
R199
R201
+5VA
110K
47K
C188
R197
C191
390
4.7uF +5VA
R198
330pF
3.6K
C189
R200
6 8
EXTMIC
7
U714-2
4.7K
5 TL062
.0047uF
C192 0.1uF
4
R202
C193
0.22uF
82.5K
INTMICEN
C194
0.22uF
R204
EXT_INT_SPKR*
10K
MEMCNTL(6:0)
U709
5625U38 VCC
HC11RST*
L119
BOOT_SEL_VPP
12
LX1
13
LX2 100uH
14
LX3
C180 C181
3 100uF 470pF
VREF D104
6
NC2
C179
.01uF
5V ANALOG
SW_B+
REGULATOR
+5VA
U710
S81250
2 3 Q106
2 3
INPUT OUTPUT
C184 C185
C183 4.7uF 4.7uF
SW_B+ 4.7uF
3 4 5
Q108
2DTC143ZK
R191
1K R192
10K
2 1
C195 0.22uF
C196 0.22uF
R205
C197 0.22uF
+5VA
C198 .01uF
U712
5 TE85L
SW_B+
1
IN_OUT*
4 C199 C201 C203
CONT
2
OUT_IN*
0.22uF 4.7uF
0.1uF
3
AMP1OUT
19
AMPEN AMP2OUT
16
+5VA
INTMICEN AMP3OUT
14 U718
+5VA
MICEN
6
AMPIN REGOUT
8 57W68
U713
PLIN MICAMPOUT
13
FREQCOMP BOOTCAPC1
5 TE85L
R203 12
REG BOOTCAPC2
10K 17
INTMICIN BOOTCAPC3
1 18
IN_OUT* EXTMICIN AMP1OUT1
4 C200 20
CONT EXT_INTSPKR* AMP2OUT1
2
OUT_IN* AMP3OUT1
C202
0.22uF
.0047uF
47K
Q107
47K
AUDIO PA
4 ROM1CS*
6 ROM2CS*
1 MEMR_W*
0 OE*
3
EECS*
VCC
2
RAMSEL* 2
U708-1 4 C215
5
CSGEN* 1 TC7S08F
0.1uF
20
CS
22
OE
U705
27
WE
MB84256A
0 A0 10 0 A0
A0
1 0
A1 9 11 D0 1 A1
A1 IO1
2 1
A2 8 12 D1 2 A2
A2 IO2
3 2
A3 7 13 D2 3 A3
A3 IO3
4 3 4
A4 6 15 D3 A4
+5VA
A4 IO4
5 A5 5 16 D4 4 5
A5
A5 IO5
6 A6 D5 5 6
4 17 A6
R213 A6 IO6
7 A7 3 18 D6 6 7
A7
A7 IO7
8 A8 25 19 D7 7 8 A8
10K A8 IO8
9
A9 24 9 A9
A9
10 A10 21 10 A10
A10
11
A11 23 11 A11
A11
12 12
A12 2 A12
A12
13
A13 26 13 A13
A13
16 A14_OUT 16
1 A14_OUT
A14
+5VA
10K
C205
0.33uF
C206
23 0.33uF
27
31
7
PLOUT
10 C211
R207
15
C207
4
33K
22 0.22uF
21 R206 C210
24 1uF C208 15K .047uF
+5VA
28
32
1uF C209
1uF
C204
0.1uF
13-48
R542
4.7K
Q110
R529 R211
VR121 100K 10K
11V
VCC
R209
Q109
C216
4.7K
0.1uF
27
VCC
EN_CE
1
EN_OE
6
EN_WE
R531
VCC
U706 0
17
A0 R212
R536
16 R535
AT28C256
A1
100K
15 100K
A2
0 10K 0
14 18 D0 A0
A3 D0
1 1
13 19 D1 1 A1
A4 D1
12 20 D2 2 U725-1 4 2
A2
A5 D2
2
D3 3 TC7S08F 3
11 22 A3
A6 D3
10 23 D4 4 4 A4
A7 D4
4 24 D5 5 5 A5
A8 D5
6 6
3 25 D6 A6
A9 D6
28 26 D7 7 7 A7
A10 D7
8
2 A8
A11
9
9 A9
A12
10
5 A10
A13
11
8 A11
A14
12 A12
13
A13
16
A14_OUT
17 A15_OUT
18
A16
19
A17
20
A18
21
A19
VCC
+5V VOLTAGE
VCC
C212
DETECTOR
5 0.1uF 5
VCC VCC
U708-2 U725-2
PWR_GND PWR_GND
GND GND
3 3
NCN6128B Controller Board Schematic Diagram, Sheet 3 of 4
VCC
Q113
VPP
R539
R541
0
10K
A(21:0)
DATA(7:0)
VCC
R540 C217
10K
0.1uF
22
EN_CE
D0 0
9 25
WE D0
24 26 D1 1
OE D1
10 27 D2 2
RP D2
12 28 D3 3
WP D3
4
32 D4
D4
21 33 D5 5
A0 D5
D6 6
20 34
A1 D6
19 35 D7 7
A2 D7
18
A3
17
U727
A4
16
A5
15
28F004
A6
14
A7
8
A8
7
A9
36
A10
6
A11
5
A12
4 29
A13 NC
3 37
A14 NC
2 38
A15 NC
1
A16
40
A17
13
A18
INT_SPKR
SPKR_COMMON
EXT_SPKR
MAI
VCC
R208
100K
U726
C213 1
OUT POR*
0.1uF S80745
C214
.47uF
63B81086C80-O