9-14
Schematics, Board Overlays, and Parts Lists – UHF
: VOCON Section
May 28, 2008
6871620L01-C
Figure 9-13. VOCON: Audio, Connector Interface Circuits
I
NT_M
I
C_OUT
EXT_M
I
C_OUT
E
AUD
I
O
S
I
GNALS
EXT_SPKR-
I
I
NT_SPKR-
CE_CTS
CE_RS232D
CE_RS232D
I
N_USB-
CE_LHDATA_KEYFA
I
L
USB/RS232/SB9600
CE_SB9600_BUSY
CE_RTS
180
R1202
R1204
560
R1203
R1205
1K
USBN
USBP
390
470pF
C1213
33pF
C1212
C1214
33pF
470pF
C1215
R1207
33
33
R1206
NC
3
1
2
VR1202
5
.
6V
5
.
6V
3
1
2
VR1203
NC
R1212
100K
V2
EMERG
C1217
470pF
1K
R1210
UC_EMERG
100
I
NT_SPKR_NEG
EXT_SPKR
I
NT_SPKR
EXT_SPKR_NEG
R1201
470pF
C1210
C1209
470pF
L1204
270nH
270nH
L1205
2415429H45
5
A2
1
K1
3
K2
4
K3
6
K4
VR1201
P
l
ace
c
l
ose
to
Connector
12
.
6V
2
A1
MAKO
AUD
I
O
I
NT_SPKR_NEG
EXT_SPKR
EXT_SPKR_NEG
EXT_M
I
C
I
NT_SPKR
I
NT_M
I
C
LH_BUSY
RTS
CTS
LHDATA_KEYFA
I
L
RS232_D
I
_USB-
RS232
_VPP
OPT
I
ON
SELECT
&
PTT
CE_OPT_SEL2
CE_OPT_SEL1
UC_
I
NT_PTT
0
.
10uF
C1218
1
2
D1205
13V
D1223
5
.
73V
VR1206
D1222
NU
VR1205
6
.
8V
4809788E21
MECH_SW_b
R1241
0
NU
R1239
0
0
.
10uF
C1219
C1220
470pF
68
R1213
SW_B+
E1201
BLM11A601S
1
2
D1202
R1214
R1215
R1217
R1216
30
4
.
7K
390
220
R1218
47K
R1220
10K
V2
0
.
10uF
C1223
C1222
100pF
R1219
10K
470pF
C1221
V2
V2
1
2
D1207
VPP_EN
NU
V2
For
HAB
=
no
p
l
ace
10K
R1221
For
HAB
on
l
y
R1223
V2
MOD
HAB_MOD
NU
For
HAB
on
l
y
0
For
HAB
=
no
p
l
ace
R1224
R1596
V2
100K
R1225
2
3
6
4
1
EMD3
Q1202
5
Q1201
EMD3
10K
10K
10K
10K
10K
10K
10K
10K
5
2
3
6
4
1
2
3
1
VR1204
9
.
1V
ONE_W
I
RE_OPT
V2
V2
20K
R1226
R1227
1%
10K
100K
R1230
C1232
100pF
1%
150K
R1229
6
.
8V
VR1208
100
R1231
20K
R1228
OS2O
0
.
10uF
C1225
OPT_SEL2_
I
N
OPT_SEL2_OUT
ONE_W
I
RE_OPT
OPT_SEL1_
I
N
V2
OUTB
9
SDA
5
SDB
6
VNEG
4
VPOS
10
LMV712LDX
CTGND
G1
I
NNEGA
2
I
NNEGB
8
I
NPOSA
3
I
NPOSB
7
OUTA
1
U1201
V2
C1224
0
.
10uF
OPT_SEL1_OUT
I
NT_PTT
OPTB+_VPP
VSW1
VSW2
VCC5
VREF
V2
GLOBAL
NAME
2
.
89
Vdc
DC
Power
Supp
l
y
VOLTAGE
Designators
2
.
89
Vdc
5
.
0
Vdc
3
.
8
Vdc
1
.
875
Vdc
Summary of Contents for ASTRO XTSTM 4000
Page 1: ...COLOR CHORDS 7 ASTRO XTSTM 4000 Portable Radio Detailed Service Manual ...
Page 2: ......
Page 16: ...May 28 2008 6871620L01 C xiv Commercial Warranty Notes ...
Page 22: ...May 28 2008 6871620L01 C 1 6 Introduction Notes ...
Page 26: ...May 28 2008 6871620L01 C 2 4 Radio Power Notes ...
Page 56: ...May 28 2008 6871620L01 C 3 30 Theory of Operation Notes ...
Page 100: ...May 28 2008 6871620L01 C 6 8 Troubleshooting Waveforms Notes ...
Page 194: ...May 28 2008 6871620L01 C B 2 Motorola Service Centers Notes ...
Page 204: ...May 28 2008 6871620L01 C Glossary 10 Glossary Notes ...
Page 209: ......