Motorola 6864115B62-C Detailed Service Manual page 148

3-46
9V3
R0201
100
R0202
560
C0201
10uF
80mV RMS
R0205
10K
INT_MIC
C0203
2200pF
NU
80mV RMS
EXT_MIC
5V_RF
TX_AUD_RTN
TX_AUD_SND
RX_AUD_RTN
5V_RF
300mV RMS
C0222
0.1uF
URX_SND
200mV RMS
FLAT_RX_SND
5V_RF
145mV RMS @25kHz
C0227
72mV RMS @12.5kHz
0.1uF
NU
DISCAUDIO
R0228
0
PA_PWR_SET
MOSBIAS_3
MOSBIAS_2
C0237
C0232
2.2uF
0.1uF
NU
5V_RF
D0201
NU
5 1
4
3 2
5VD
DC_POWER_ON
NOISE_BLNKR
CH_ACT
Controller T12 Schematic Diagram - Audio PA
R0211
R0203
100 7.5K
R0204
560
C0202
10uF
R0212
TP0221 7.5K
C0204
0.1uF
R0207
2.2K
R0206
10K C0205
R0208
2200pF
2.2K
NU
R0220
8.2K
NU
C0221
R0221
0.1uF TP0222
24K
R0222
R0223
24K 30K
R0225
R0224
8.2K
8.2K
NU
C0223
0.1uF R0229
10
R0226
C0228
1MEG
NU
4.7uF
C0224 C0225 C0226
100pF 0.1uF 0.1uF
R0227
1
VDDA
1MEG
NU 2 DISC
3
GNDA
4
DACU
5
DACR U0221
6 DACG
63A53
7 VOX
8 PLCAP
9
SQIN
C0233
10 UIO
0.22uF
C0236
11 VDDDAC
NU
.033uF
12 AGCCAP
C0231
1uF
5V_RF
5V_RF
C0234 C0235
0.1uF .022uF
5VD
5VDC (0VDC during radio off)
7 8
11
7 5 4 6 3
9V3
C0211
0.1uF
NU
VAG
C0212
10uF
FLAT_TX_RTN
VS_MIC
C0243
R0257
100pF
5VD
2.2K
U0251
MC14053B
R0251
12
X0
C0254
47K R0252
13
0.1uF
X1
2 Y0
56K
1
Y1
5 Z0
5V_RF
C0255
3
0.1uF
Z1
R0242
GND
0
36
TXRTN
35
GCB3
34
C0242
CLK168
33 0.1uF
VDDD
NU C0265
32
VDDCP
0.1uF C0266
31
GNDD 0.1uF
30
GNDD0 NU
29
F1200
28
SYN R0266
27
C0267
VDDSYN 5V_RF 24K
R0267
26 .01uF
NC NU 47K
25
PLCAP2
C0241
R0265
0.1uF
24K
R0268
C0244 10K
0.1uF
9V3
U0211-1
MC3403 4
2
1
C0245
0.1uF
VAG
3
11
C0246
.01uF
INT_SWB+
R0241
5VD
47K
9
1 2
C0256
100pF
R0256
100K
5V_RF
9V3
R0254
13 4
10K
14
12
11
U0211-4
MC3403
R0255
10K
C0251 C0253
0 VDC
100pF
0.1uF
NU
R0253
100K
16
6
VCC C0252
9V3
EN
1uF
4 630mV RX Filtered
14 6
X
7 330mV Flat
11
A
5
VAG
11 RX_FLAT_FILTERED_AUDIO
15
U0211-2
Y
10 MC3403
B
4
Z
9 C0262
C
VEE
82pF
5VDC RX Filtered
8 7
Audio (0V DC Flat)
R0262
270K
R0261 9V3
C0261
10K
9 4
8
0.1uF 10
VAG
11
U0211-3
MC3403
FLT_A+
C0271
.01uF
C0272
0.1uF
R0269
U0271
TDA1519C
470 7
C0276 E0271
VCC
C0273
57R01
1000pF
3300pF
4
9
INV OUT1
1
NINV
13VDC unmuted
3 RR
R0273 5VDC muted
6
8
M_SS
OUT2
24K
R0276 E0272
R0274
GND2
15K GND1 57R01
C0277
10K
5 1000pF
2
NU
Q0271
R0275
C0275
10K
47uF
C0274
0.1uF
NU
Controller T12 / Schematic Diagrams
MODIN
VS_AUDSEL
16_8MHZ
RX_ADAPT
HANDSET_AUDIO
SPKR+
SPKR-
ZWG0131030-O
SPI(0:10)
GPIO(0:13)
CNTLR_AUDIO(0:7)