Schematics, Board Overlays, and Parts Lists – UHF
: Transceiver (RF) Section
9-9
6871620L01-C
May 28, 2008
Figure 9-8. UHF Transceiver (RF) Transmitter Circuit
Vc
BLM21PG221SN1
E101
RAWB+
RT150
33
.
0K
100pF
C137
TX5V
100
0613952Q49
R120
Q102
RAWB+
V5A
XB+
0613952Q62
R121
360
10
0613952Q25
R122
TXRF
V5A
RAWB+
XB+
L101
2414017G09
15nH
100pF
C101
2113944C45
C102
100pF
100pF
C105
RF
I
N
RFOUT1
RFOUT2
VCNTRL
VD1
VG1
VG2
GND1
GND2
GND3
GND4
NC1
NC2
NC3
NC4
U102
SRF
I
C5668
EP
G2
15
16
6
7
1
14
2
3
11
4
5
12
13
8
9
10
17
BLM11A601S
E104
100pF
C104
C103
.
01uF
0
.
10uF
C145
C108
.
01uF
100pF
C110
R118
0
30
31
26
28
25
32
27
29
NC
VL
VL
I
M
TEMP
V10
V45
V5EXT
VAR1
VAR2
VAR3
VG
NA
Q
QX
RF
I
N
RS
RSET
RX
T1
CLK
CQ
CQX
D
ATA
F168
GND1
GND2
I
NT
5185765B26
H99S4
U104
ANO
BPOS
CEX
C
I
CJ
CL
6
2
4
1
7
8
3
5
NC
C131
.
015uF
C130
470pF
C129
1500pF
NP
R136
R111
470K
C128
100pF
C140
100pF
0
R135
MOS
I
USEL
SPCK
RSTL
C135
100pF
GND
P
OS
VOUT
LM50
U103
V5A
31
2
E103
BLM18PG121SN1
100pF
C111
2414032D18
L102
180nH
2479990E01
23
.
75nH
L105
C146
0
.
10uF
0
.
1
R130
C117
1uF
100pF
2113944C45
C119
.
01uF
C118
TVDD
NP
1
TEST_PO
I
NT
TP111
100pF
C106
L103
33nH
100pF
C107
C112
5
.
1pF
NP
R102
47
2113944C37
C114
39pF
R105
0613952G67
R138
18K
0
0613952H53
R109
150
0
.
10uF
C147
2414017G07
10nH
L113
R106
10K
0
R137
0613952G67
100pF
C127
NP
0
.
1uF
C116
D
3
G
1
S1
2
S2
4
NP
6
.
8pF
2171741M05
C120
C122
27pF
C121
6
.
8pF
C141
39pF
15pF
C124
100pF
C125
2113944C45
L108
2415428H04
5
.
4nH
C123
2113944C16
2
.
7pF
POUT
POUT
Q107
4816698H03
0
.
10uF
C148
RAWB+
2
5
6
3
1
4
Rb
=
4
.
7K,
Re
=
inf
MUN5316DW1T1G
Q101
E105
RAWB+
19
17
20
18
24
22
21
23
NC
NC
15
14
16
11
10
12
13
9
NC
NC
NC
NC
R119
0
NC
0
.
1uF
C132
1uF
C133
C134
.
01uF
0
.
10uF
C149
10
R117
100pF
C144
TX5V
VAR2
VAR3
TX5V
V5A
NTR1P02T1
Q104
NC
NC
NC2
5
D104
A1
1
A2
4
K1
3
K2 6
NC1
2
MBD330DWT1
RXH
C136
100pF
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: ......