Ncn6167C Controller Board Schematic Diagram, Sheet 3 Of 4 - Motorola ASTRO XTS 3000 Service Manual

R537
DIGITAL 5V REGULATOR
UNSW_B+
L501
1
88Z01
R509
1
C220 C175 C176
0.1uF 47uF 0.1uF
7
VIN
D105
5
B+_CNTL ON_OFF*
4
B+CNTL R186 FB
U709
2
R185 SS
3
470K
SYNC
B+SENSE
10K
R184
C178
0.1uF
10K
R510
R187
0
UNSW_B+
100K
B+SENSE
R519
R188
100K
100K
R189
100K
C182
Q105
470pF
MICEN
R190
SPKEN
C219
10K
SDO
0.1uF
R196
150K
+5VA
R193
390 C186
C190
4.7uF
R194
100pF
+5VA
4.7K
U714-1
C187
R195
TL062
2 8
INTMIC
1
22K
0.1uF 3
4
+5VA
R199
R201
+5VA
110K
150K
R197 C188
C191
390
4.7uF
R198
+5VA 100pF
2.2K
C189 U714-2
R200
6 8 TL062
EXTMIC
7
22K
0.1uF
5
C192 0.1uF 4
C193
R202
82.5K
0.22uF
INTMICEN
C194
0.22uF
R204
EXT_INT_SPKR*
10K
MEMCNTL(6:0)
HC11RST*
VCC
L119 BOOT_SEL_VPP
8 68uH
VSW
1 C180 C179
D104
CB
0.1uF
C177 100uF
GND
.01uF
LM2672
5V ANALOG
SW_B+
REGULATOR
+5VA
U710
S81250PG
3 2
OUTPUT INPUT
C184 C185
C183
Q106
4.7uF
SW_B+ 4.7uF 4.7uF
Q108
R191
R192
1K
C195
10K
0.22uF
C196 10K
C197 10K
+5VA
C198 .01uF
U712
TC4S66F
C199 SW_B+
VDD
1 2 C201
VSS
0.22uF
CNTL
4.7uF
AMP1OUT
19
EN_AMP AMP2OUT
16
EN_INTMIC AMP3OUT
+5VA
14
EN_MIC U718
+5VA
6
57W68
AMPIN REGOUT
8
PLIN MICAMPOUT
U713
13
FREQCOMP BOOTCAPC1
TC4S66F
R203 R214 12
REG BOOTCAPC2
5 0
10K 17
INTMININ BOOTCAPC3
C200 R215 0 18
EXTMICIN AMP1OUT1
1 VDD 2 20
EXT_INTSPKR AMP2OUT1
VSS
AMP3OUT1
0.22uF
CNTL
C202
3
4
4700pF
47K
Q107 R216
0
47K
R217 0
AUDIO PA
4
ROM1CS*
ROM2CS*
6
1 MEMR_W*
0 OE*
3
EECS*
VCC
U708-1
2
RAMSEL* 2 C215
4
5
CSGEN* 1
0.1uF
TC7S08F
VCC
20
EN_CS
22
EN_OE
27
EN_WE
U705
0 A0 10 0
A0
1 A1 9 11 D0 0 1
A1 D0
2 A2 8 12 D1 1 2
A2 D1
A3
3 7 13 D2 2 3
A3 D2
4 A4 6 15 D3 3 4
A4 D3
+5VA 5 A5 5 16 5
D4 4
A5 D4
A6 D5
6 4 17 5 6
R213 A6 D5
7 A7 3 18 7
D6 6
A7 D6
A8 D7
8 25 19 7 8
10K A8 D7
9 A9 24 9
A9
10 A10 21 10
A10
11 A11 23 11
A11
12 A12 2 12
A12
13 A13 26 13
A13
16 A14_OUT 1 16 A14_OUT
A14
MB84256-120
+5VA
R205
10K
C205
C203 0.33uF
0.1uF
C206
0.33uF
23
27
31
7
PLOUT
10 C211
R207
15
4
20K
1uF
22 C207 0.22uF
21
R206 C210
24 15K 6.81K
+5VA
C208 1uF
28
32
C209
1uF
C204
0.1uF
13-64
R542
4.7K
Q110
R529
R211
VR121
100K 10K
11V
VCC
R209
C216 Q109
4.7K
0.1uF
VCC
27
EN_CE
1 VCC
EN_OE
6
EN_WE
R531
R212
U706
A0 17 0 VCC
A0 10K
R536
A1 16 R535
A1 100K
A2 15 100K
A2
A3
14 18 D0 0 U725-1 0
A3 D0
A4 13 19 D1 1 1 1
A4 D1
A5 12 20 4 2
D2 2
A5 D2
A6 D3
11 22 3 2 3
A6 D3
A7 10 23 4
D4 4
A7 D4
A8 D5 TC7S08F
4 24 5 5
A8 D5
A9 3 25 D6 6 6
A9 D6
A10 28 26 D7 7 7
A10 D7
A11 2 8
A11
A12 9 9
A12
A13 5 10
A13
8 11
A14
12
13
AT28C256E-20
16
17
18
19
20
21
VCC
+5V VOLTAGE
C212 VCC
DETECTOR
0.1uF
5 5
VCC VCC U725-2
U708-2
PWR_GND PWR_GND
GND GND
3 3

NCN6167C Controller Board Schematic Diagram, Sheet 3 of 4

VCC
Q113
VPP
R539
R541
0
10K
A(21:0)
DATA(7:0)
VCC
C217
R540
10K
0.1uF
22
EN_CE
24
EN_OE
9
EN_WE
10
RP
12
U727
WE
0
A0 21 25 D0
A0 D0
A1 20 26 D1 1
A1 D1
19 27 D2 2
A2
A2 D2
A3 D3 3
18 28
A3 D3
17 32 D4 4
A4
A4 D4
A5 D5 5
16 33
A5 D5
A6 15 34 D6 6
A6 D6
A7 14 35 D7 7
A7 D7
A8 8
A8
A9 7
A9
A10 36
A10
A11 6
A11
A12 5
A12
A13 4 29
A13 NC
A14_OUT
3 37
A14 NC1
A15_OUT 2 38
A15 NC2
A16 1
A16
A17 40
A17
A18 13
A18
A19
INT_SPKR
SPKR_COMMON
EXT_SPKR
MAI
VCC
R208
U726
100K
VDD
C213
1
OUTPUT POR*
0.1uF
4 5
NC1 NC2
S80745SN
C214
GND 0.47uF
63C81094C64-O