Motorola CDM Series Detailed Service Manual page 87

Controller T2 Schematics and Parts Lists
9V3
R0202
560
80mV RMS
R0205
10K
INT_MIC
C0203
2200pF
NU
80mV RMS
EXT_MIC
TX_AUD_RTN
TX_AUD_SND
RX_AUD_RTN
5V_RF
300mV RMS
C0222
0.1uF
URX_SND
200mV RMS
FLAT_RX_SND
FLAT_TX_RTN
5V_RF
145mV RMS @25kHz
R0226
72mV RMS @12.5kHz
1M
C0227
DISCAUDIO
0.1uF R0227
1M
PA_PWR_SET
MOSBIAS_3
MOSBIAS_2
C0237 C0236
C0232
2.2uF
0.1uF .033uF
NU
5V_RF 5V_RF
D0201
NU
5VD
5VDC (0VDC during radio off)
DC_POWER_ON
NOISE_BLNKR
CH_ACT
ZWG0130231-A
R0201
100
R0204
560
C0201
10uF
TP0221
C0204
1
R0207 0.1uF
2.2K
R0206
10K
R0208
C0205
2.2K
2200pF
NU
C0221
R0221
0.1uF TP0222
24K
R0223
R0222
R0224
R0224
24K 30K
8.2K
8.2K
NU
C0223
0.1uF
C0225
C0224 C0226
0.1uF 0.1uF
100pF
1
VDDA
2
DISC
3
GNDA
4
DACU
5
U0221
DACR
6
DACG
63A53
7
VOX
8 ASFIC CMP
PLCAP
9
SQIN
10
UIO
11
VDDDAC
C0233
C0231 12
AGCCAP
0.22uF
4.7uF
NU
5V_RF
C0235
C0234
.022uF
0.1uF
5VD
7
11
7 5 4 6 3
9V3
C0211
R0211
0.1uF
7.5K
NU
4.6VDC
VAG
C0212
R0212
10uF
7.5K
VS_MIC
C0243
100pF
5VD
MC14053B
R0251
47K
R0252
C0254
56K
0.1uF
C0255
5V_RF
0.1uF
R0242
0
36
TXRTN
35
GCB3
34
C0242
CLK168
33
0.1uF
VDDD C0266
C0265
32
VDDCP
0.1uF 0.1uF
31
GNDD NU
30 NU
GNDD0
29
F1200
R0265
28
R0266
SYN
24K
27
24K C0267
VDDSYN 5V_RF
26
NU .01uF
NC
25
PLCAP2
R0268
C0241
10K
0.1uF
C0244
0.1uF
2
3
VAG
C0245
0.1uF
C0246
.01uF
R0241
47K
INT_SWB+
5VD
8 9
1 2
9V3
U0211-4
13
4 MC3403 MC3403
14
12
11
C0251
0 VDC
0.1uF C0253
NU
100pF
NU
R0253
U0251
100K
6 C0252
9V3
EN
1uF
12
X0
6 630mV RX Filtered
14 4
X
13 7 330mV Flat
11
X1 A
2 5
VAG
Y0
11
15 U0211-2
Y
1 10 MC3403
Y1 B
5
Z0
4
Z 5VDC RX Filtered C0262
3
9
NU
Z1 C Audio (0V DC Flat)
GND VEE
82pF
8 7
R0262
100K
9V3
C0261
R0261
9
4
8
10K
0.1uF
VAG
11 U0211-3
R0267
10
MC3403
47K
FLT_A+
C0271
9V3
.01uF
C0272
R0269
4 0.1uF
470
1
U0271
11 U0211-1
MC3403 C0273 PA 7
E0271
3300pF
C0276
57R01
1000pF
9
INV
4
1 OUT1
NINV
R0273
13VDC unmuted 3
24K
RR
5VDC muted
8 6
OUT2
M_SS
R0276
E0272
C0277
R0274
15K
1000pF
10K
2 5
NU
Q0271
R0275
C0275
10K
47uF
C0274
0.1uF
NU
Controller T2 Schematic Diagram – Audio
Section 3: 3-7
MODIN
VS_AUDSEL
16_8MHZ
RX_FLAT_FILTERED_AUDIO
HANDSET_AUDIO
SPKR+
SPKR-
57R01
SPI(0:10)
GPIO(0:13)
CNTLR_AUDIO(0:7)
6881091C63-F