Motorola CDM Series Detailed Service Manual page 478

Section 8: 4-6
5V_VHF_FN_1
(SOURCE) 5V
5V_VHF_FN_2
R3202
10MEG
VCTRL_VHF_FN_1 NU
2.5-11VDC
VCTRL
TP3201
LOCK_VHF_FN_1
5VDC (LOCKED)
0VDC (UNLOCKED)
LOCK
4.95VDC (R)
BWSELECT_VHF_FN_1
0VDC (T)
BWSELECT
4.52VDC (R)
VCOMOD_VHF_FN_1
2.62VDC (T)
VCOMOD
16_8MHz_VHF_FN_1
+1dBm
16_8MHz
0VDC (R)
TRB_VHF_FN_1
4.91VDC (T)
TRB
ZWG0130564-O
VHF (136–174 MHz) 25–45 W Bipolar FRACN Synthesizer
6881091C63-F
13.30VDC
6.83VDC
11.28VDC
C3202
.01uF 3
K3 A3
2
K2 A2
1
A1
K1
C3203
D3201
.01uF
C3205 C3206
.01uF 10uF
C3207
22pF
R3221
390 R3203
C3221
R3222
47
C3222
0.1uF
0.1uF
680
R3223
100
C3223
1uF
C3224
NU
1uF
C3247
10pF
C3240
22pF
NU
In case Y3261 is used instead of Y3263,
replacement of the following parts requires
new temperature compensation of the frequency:
Y3261, U3201, R3261, R3262, C3262, D3261
4.97VDC
C3213
2.2uF
L3201 C3212
390nH .022uF
5V
4
5
R3201
6
47
C3210
2.2uF
C3225
0.1uF
R3206
150K
D3221
NU R3226
47K
C3208
NU
NC
C3228
0.1uF
0.1uF
C3246
C3209
220pF
0.1uF
NU
R3204 25
R3228
47
WARP
47K
NC 16
NU INDMULT
28
SFOUT
46
ADAPTSW
4
LOCK
45
IADAPT
43
IOUT
38
NC
TEST2
37
NC TEST1
U3201
3
AUX4
2
AUX3
1
AUX2
48
AUX1
63A27
11
NC
VMULT4
12
VMULT3
NC
14
VMULT2
15
VMULT1
R3242
41
R3241
0 MODOUT
19
FREFOUT
100
2.90VDC 24
XTAL2
L3232
C3241 3.42VDC 23
XTAL1
56pF
2.2uH
NU
NU
Y3261
16.8MHz
NU
75Z04
6
IN
C3261
GND GND1
39pF
1
C3235
NU
.01uF
R3263
R3262
4,7k
6.2K
C3262
Y3263
NU
330pF
16.8MHz
NU
VHF (136–174 MHz) 25–45 W Bipolar PCB 8486140B12, Schematics, and Parts Lists
R3211
0
C3214
2.2uF
U3211
ADP3300
1 VDDA
6 3
ERR SD
4
OUT IN
5
2
IN_5V_RF_REG_VHF_FN_1
NR
C3211
C3215
0.1uF 2.2uF
VCOBIAS_1_VHF_FN_1
R3224
47K
C3229
R3225
47K
.047uF
47K
Q3221
47K
1.1-4.1VDC
TP3202
31
NC
NC3
29
NC
NC2
17
C3226
NC R3227
NC1
8.2pF
100K
42
NC
CCOMP
18
NC
REFSEL
C3227
32
PREIN
27
C3255
NC
SFBASE 100pF
26
SFCAP
R3252
2.2uF C3252
330K
39
BIAS2
1000pF
40
BIAS1
R3251
21
C3253
VBPASS
NC 180K
35 4.7uF
PVREF NC
SFIN 30
5VDC
7
DATA
10 2.5VDC
MODIN
5VDC
9
CEX
8 0VDC
CLK
C3244
220pF
C3242 C3245 C3243
220pF 220pF 220pF
R3261
47K
C3231 C3232 C3233
3 C3234
OUT
2.2uF
.01uF .01uF .01uF
D3261
C3263
NU
0.1uF
4
1
5V
VCNTL
2 4
C3251
OUT
0.1uF
3
VDDA_VHF_FN_1
VDDA
IN_5V_RF_REG
VCOBIAS_1
VCOBIAS_2_VHF_FN_1
VCOBIAS_2
PRESC_VHF_FN_1
PRESC
VSF_VHF_FN_1
VSF
C3254
0.1uF
DATA_VHF_FN_1
DATA
MODIN_VHF_FN_1
MODIN
CSX_VHF_FN_1
CSX
CLK_VHF_FN_1
CLK
VDDA
L3231
2.2uH
ZWG0130564-O