Motorola CDM Series Detailed Service Manual page 550

Section 10: 4-6
5V_UHF_FN_1 5V_UHF_FN_2
5V
VCTRL_UHF_FN_1
2.5 to 10 Vdc
VCTRL
5 VDC (Locked)
LOCK_UHF_FN_1
0 VDC (Unlocked)
LOCK
4.97 VDC (25KHz Chan. Spacing)
0 VDc (12.5KHz Chan. Spacing)
BWSELECT_UHF_FN_1
BWSELECT
3.09 VDc (Rx)
VCOMOD_UHF_FN_1
2.65 VDC (Tx)
VCOMOD
16_8MHz_UHF_FN_1
16_8MHz
TRB_UHF_FN_1
TRB
0 VDC (Rx)
4.97 VDC (Tx)
ZWG0130364-O
UHF Band 2 (450–512/520 MHz) 25–40 W Bipolar FRACN Synthesizer
6881091C63-F
6.6 VDC
10.87 VDC
C5201
12.7 VDC
100pF
D5201
C5202
3
.01uF
K3
2
K2
1
K1
C5203
C5204
.01uF
100pF
C5287
C5205 C5206
100pF .01uF
10uF
R5203
R5221
150
C5221 R5222 C5222
510 0.1uF
.01uF
TP5201
R5223
68
L5221
C5224
C5223 12uH
C5225
1uF
1uF
510pF
4.97 VDC
C5213
C5216
L5201 2.2uF .01uF
390nH
5V
4
A3
5
A2
R5201
6
A1
150
C5210
2.2uF
R5206
33K
C5208
0.1uF
C5207
C5209 C5228
0.1uF 0.1uF
100pF
R5204
47
47
R5228
C5246
47K 25
100pF
WARP
16
INDMULT
28
SFOUT
46
ADAPTSW
4
LOCK
45
IADAPT
43
IOUT
38
TEST2
37
TEST1
3
AUX4
2
AUX3
1
AUX2
48
AUX1
11
VMULT4
12
VMULT3
2.48 VDC
14
VMULT2
2.48 VDC
15
VMULT1
41
R5241 MODOUT
19
FREFOUT
220
1.25 VDC 24
C5288 XTAL2
23
C5241
0.1uF
1.97 XTAL1
100pF
NU
VDC
NU
C5289
0.1uF
C5261
C5235
62pF
0.01uF
NU
R5262 C5262
R5263
1.2K 220pF
100
NU
NU
UHF Band 2 (450–512/520 MHz) 25–40 W Bipolar PCB 8480645Z04, Schematics, and Parts Lists
C5212
.018uF
U5211
LP2951
1
8
OUTPUT INPUT
5
7
ERROR
FEEDBACK
2
3
SENSE
SHUTDOWN
6 C5211
5V_TAP
0.1uF
GND
4
R5211
0
C5214
2.2uF
3.03 VDC
1
TP5202
31
NC3
-19 to -17 dBm (Rx)
29
NC2
-17 to -12 dBm (Tx)
17
NC1
C5227
42 3.76 VDC
CCOMP
18
REFSEL
100pF C5226
32
C5230 2.4pF
PREIN
27
2.2uF
SFBASE
26
SFCAP
R5252
U5201 1.76 VDC (Tx) 30K
39 4.57 VDC
BIAS2
R5251
40 39K
BIAS1
1.69 VDC (Rx)
C5253
21
C5252
VBPASS
4.7uF
35
C5255
PVREF 1000pF
100pF
30
SFIN
4.98 VDC
7
DATA
10 2.51 VDC
MODIN
9 4.95 VDC
CEX
8 0 VDC
CLK
C5244 C5242
C5245 C5243
100pF
100pF 100pF
100pF
R5261
150K
XTAL
C5234
C5231 C5232 C5233
Y5261 .01uF .01uF
.01uF 2.2uF
16.8MHz
C5263
NU
1.5pF
D5261
NU
Y5262
TTS05V
16.8MHz 1
VCNTL
2 4
GND VCC 5V
C5251
OUT
0.1uF
3
IN_5V_RF_REG_UHF_FN_1
IN_5V_RF_REG
C5215
2.2uF
VDDA_UHF_FN_1
VDDA
VDDA
U4507
VCOBIAS_2
L5225
U4506
47nH
PRESC
C5229
2pF
VSF_UHF_FN_1
VSF
C5254
0.1uF
DATA_UHF_FN_1
DATA
MODIN_UHF_FN_1
MODIN
CSX_UHF_FN_1
CSX
CLK_UHF_FN_1
CLK
VDDA
L5231
2.2uH