Motorola 6864115B62-C Detailed Service Manual page 337

UHF 1-25W PCB 8471224L03
5V_UHF_FN_1 5V_UHF_FN_2
5V
(SOURCE)
VCTRL_UHF_FN_1
2.5 to 11 VDC
VCTRL
LOCK_UHF_FN_1
LOCK
5 VDC (Locked)
0 VDC (Unlocked)
4.97 VDC (25KHZ Chan. Spacing)
0 VDC (12.5KHZ Chan. Spacing)
BWSELECT_UHF_FN_1
BWSELECT
3.05 VDC (RX)
VCOMOD_UHF_FN_1
2.63 VDC (TX)
VCOMOD
16_8MHz_UHF_FN_1
16_8MHz
TRB_UHF_FN_1
TRB
0 VDC (RX)
4.97 VDC (TX)
UHF (403-470 MHz) FRANC 1 - 25W
6.68 VDC
10.87 VDC
C4203
.01uF
C4201
100pF
12.7 VDC
D4201
C4202
3
.01uF
K3 A3
2
K2 A2
1
K1 A1
C4204
100pF
C4287 C4205 C4206
100pF .01uF 10uF
R4221
150
R4203
C4222 47
C4221
R4222
0.1uF
.01uF
510
1
TP4201
R4223
68 L4221
12uH
C4223 C4224
1uF
NU
C4225
510pF
4.97 VDC
C4216
C4213
.01uF
L4201 2.2uF
NU
390nH
5V
4
R4201
5 R4211
150
0
6
R4206
33K
NU
C4210
2.2uF
C4208
0.1uF
C4207
NU
100pF
NU
C4209
0.1uF
C4228
0.1uF
NU
R4204
47
R4228
WARP
C4246
10K 25
100pF INDMULT
16
SFOUT
28
ADAPTSW
46
LOCK
4
IADAPT
45
IOUT
43
U4201
TEST2
38
TEST1
37
AUX4
3
AUX3
2
AUX2
1
AUX1
48
63A27
VMULT4
2.48 VDC 11
VMULT3
2.48 VDC 12
VMULT2
14
VMULT1
15
R4241
220 MODOUT
41
FREFOUT
19
1.28 VDC
XTAL2
C4241
C4288 24
100pF XTAL1
0.1uF 3.48
23
NU
NU
VDC
C4289
0.1uF
IN
C4261 6
33pF
NU
R4262
6.2K
NU C4262
C4235
330pF
.01uF
NU
R4263
100
ERR SD
6 3
OUT IN
4 5
NR
2
ADP3300 C4211
0.1uF
U4211
C4217
R4224
.01uF
47K
R4225
47K
C4214
2.2uF
D4221
47K
47K
Q4221
C4236
.047uF
1
TP4202
NC3
R4227
31
NC2 100K
29
NC1
17
CCOMP
42
REFSEL
C4227
18 C4226
10pF
2.4pF
C4230
PREIN
32
2.2uF
SFBASE
27
SFCAP
26
1.76 VDC (Tx)
4.58 VDC
BIAS2
39
BIAS1
40 R4252
R4251
30K
39K C4252
C4253
VBPASS
1000pF
21 1.78 VDC (Rx) 4.7uF
C4255
PVREF
35 100pF
SFIN
4.97 VDC
30
DATA
7 2.52 VDC
MODIN
10
4.97 VDC
CEX
9 0 VDC
CLK
8
C4244 C4242 C4245 C4243
100pF 100pF 100pF 100pF
R4261
47K
L4231
2.2uH
Y4261
75Z04
C4231 C4232 C4233 C4234
16.8MHz
.01uF .01uF 2.2uF .01uF
NU
OUT
3
C4263
0.1uF
D4261
NU
TTS05V
Y4262
16.8MHz
5V
2 4
VCC C4251
GND
0.1uF
4-51
IN_5V_RF_REG_UHF_FN_1
IN_5V_RF_REG
C4215
2.2uF
VDDA_UHF_FN_1
VDDA
VDDA
VCOBIAS_2_UHF_FN_1
VCOBIAS_2
PRESC_UHF_FN_1
PRESC
C4229
2pF
NU
VSF_UHF_FN_1
VSF
C4254
0.1uF
DATA_UHF_FN_1
DATA
MODIN_UHF_FN_1
MODIN
CSX_UHF_FN_1
CSX
CLK_UHF_FN_1
CLK
VDDA