Motorola CDM Series Detailed Service Manual page 183

VHF (136–174 MHz) 1–25 W PCB 8486172B04, Schematics, and Parts Lists
5V_VHF_FN_1
(SOURCE)
5V
VCTRL_VHF_FN_1
VCTRL
LOCK_VHF_FN_1
LOCK
BWSELECT_VHF_FN_1
BWSELECT
VCOMOD_VHF_FN_1
VCOMOD
16_8MHz_VHF_FN_1
16_8MHz
TRB_VHF_FN_1
TRB
5V_VHF_FN_2
13.30VDC
6.83VDC
11.28VDC
C3202
.01uF 3
K3
2
K2
1
K1
C3203
D3201
.01uF
C3205 C3206
.01uF 10uF
R3221
2.5-11VDC
390
R3203
C3221
47
R3222 C3222
0.1uF
680
0.1uF
TP3201
5VDC (LOCKED)
0VDC (UNLOCKED)
R3223
C3223 100
1uF
C3224
NU
1uF
4.95VDC (R)
0VDC (T)
4.52VDC (R)
2.62VDC (T)
+1dBm
0VDC (R)
4.91VDC (T)
U3211
LP2951
4.97VDC
1
OUTPUT
5
ERROR
C3213 2
SENSE
2.2uF 6
5V_TAP
L3201
390nH
5V
4
A3
A2 5
R3201
6
A1
47
C3210
2.2uF
C3225
0.1uF R3225
R3206 47K
D3221
33K
NU
R3226
47K
C3208
NU
0.1uF
C3207
C3209 C3228
1.1-4.1VDC
22pF
0.1uF
0.1uF
C3246
NU
220pF
R3204
47 25
NC3 31
WARP
R3228
16 NC2 29
NC
INDMULT
47K
28 NC1 17
SFOUT
NU
46
ADAPTSW
4
LOCK CCOMP
45 REFSEL 18
IADAPT
43
IOUT
PREIN
38
SFBASE 27
NC 37 TEST2
SFCAP 26
NC TEST1
U3201
63A27
3
AUX4 BIAS2 39
2
AUX3 BIAS1 40
1
48 AUX2
AUX1 VBPASS
PVREF 35
11
NC
12 VMULT4
NC VMULT3 SFIN
14
VMULT2 DATA
15 MODIN 10
VMULT1
R3241
41
R3242
100 MODOUT CEX
19 CLK 8
FREFOUT
24
2.90VDC
0 XTAL2
23
3.42VDC
XTAL1
C3241
L3232
VCP
56pF
NU
2.2uH
NU
see remark
Y3261
16.8MHz
XTAL
NU
C3261
C3235
62pF
.01uF
NU
Y3263
16.8MHz
TTS05V
R3262 C3262
R3263 VCNTL
6.2K NU
100
NU 220pF
2
GND
R3211 VDDA_VHF_FN_1
0
C3212
C3214
2.2uF
.018uF
VDDA
IN_5V_RF_REG_VHF_FN_1
8
INPUT
FEEDBACK 7
3
SHUTDOWN
C3211
C3215
0.1uF
GND 2.2uF
4
VCOBIAS_1_VHF_FN_1
R3224
47K
C3229
.047uF
Q3221
VCOBIAS_2_VHF_FN_1
TP3202
NC
-2 to +7dBm
NC
C3226
NC R3227
8.2pF
100K NU
42
NC
NC
C3227
PRESC_VHF_FN_1
3.63VDC
32
C3255
NC
100pF 2.2uF
R3252
330K C3252
VSF_VHF_FN_1
1000pF
C3254
R3251
C3253
21 0.1uF
NC 180K
4.7uF
DATA_VHF_FN_1
NC
30
7 5VDC
MODIN_VHF_FN_1
2.5VDC
9
5VDC
CSX_VHF_FN_1
0VDC
C3244 C3242 C3245 C3243
CLK_VHF_FN_1
220pF 220pF 220pF 220pF
VDDA
R3261
47K
L3231
2.2uH
C3233
C3231 C3232
.01uF .01uF 2.2uF
C3234
D3261 .01uF
NU
C3263
0.1uF
see remark
1
Remark:
5V
If Y3261 is placed then C3263 2113740F07 1.5pF
4
VCC
Rxxx 0662057B02 150k
If Y3263 is placed then C3263 2113743E20 100nF
C3251
OUT
0.1uF
R3261 0662057A89 47k
3
–
VHF (136 174 MHz) 1
Section 4: 4-15
VDDA
IN_5V_RF_REG
VCOBIAS_1
VCOBIAS_2
PRESC
VSF
DATA
MODIN
CSX
CLK
ZWG0130393-P4
–
25 W FRACN Synthesizer
ZWG0130393-P4
6881091C63-F