Motorola 6864115B62-C Detailed Service Manual page 302

4-16
5V_UHF_FN_1 5V_UHF_FN_2
5V
C4287 C4205
.01uF
100pF
VCTRL_UHF_FN_1
R4221
2.5 to 11 VDC
VCTRL
150
C4221 R4222
.01uF
1
LOCK_UHF_FN_1
TP4201
5 VDC (Locked)
LOCK
0 VDC (Unlocked)
C4223 C4224
1uF
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 (403-470MHz) FRACN
6.68 VDC
10.87 VDC
C4203
C4201
100pF
12.7 VDC
.01uF
D4201
3 4
C4202
K3 A3
5
2
K2 A2 R4201
1 6
K1 A1
.01uF
150
C4204
R4206
33K
100pF
NU
C4208
C4206
10uF
0.1uF
C4207
Vac C4209
0.1uF
R4203
R4204
47
47
C4222
510 0.1uF
R4223
68
C4225
510pF
C4288
C4289
0.1uF
C4212
.018uF
U4211
LP2951
4.97 VDC 1
OUTPUT INPUT
5
ERROR FEEDBACK
2 SENSE
C4216 SHUTDOWN
C4213
6
2.2uF 5V_TAP
L4201
GND
390nH
4
R4211
0
C4210
2.2uF
C4228
0.1uF
NU
3.43 VDC
1
TP4202
C4246
100pF
R4228 25 WARP
NC3
47K 31
16 INDMULT
NC2
28 SFOUT 29
NC1
-18 to -16 dBm (Rx)
17
46 ADAPTSW
-16 to -11 dBm (Tx)
4
LOCK CCOMP
42
45 IADAPT
3.79 VDC
REFSEL
43 18
IOUT
U4201
C4230
PREIN
32
38 TEST2
2.2uF
SFBASE
27
37 TEST1
SFCAP
26
1.76 VDC (Tx)
R4252
3 AUX4
BIAS2
2 AUX3 39 30K
BIAS1
40
1 AUX2
48 AUX1
VBPASS
63A27
21
PVREF 1.78 VDC (Rx)
35
11 VMULT4
2.48 VDC
12 VMULT3
SFIN
4.97 VDC
2.48 VDC 14 VMULT2 30
DATA
7 2.52 VDC
15
VMULT1 MODIN
10
4.97 VDC
41 MODOUT
CEX
R4241
9 0 VDC
19 FREFOUT
CLK
8
220
1.28 VDC C4244
24
XTAL2
100pF
C4241 23
XTAL1
3.48
VDC
R4261
150K
Y4261
1
2
16.8MHz D4261 C4263
C4261 0.1uF
NU
C4235
62pF
0.1uF
NU
Y4262
16.8MHz
TTS05V
1
R4262 R4263 VCNTL
NU 100
C4262
VCC
220pF
2 4
NU
GND
C4251
OUT
0.1uF
3
IN_5V_RF_REG_UHF_FN_1
8
IN_5V_RF_REG
7
3
C4211
C4215
0.1uF
2.2uF
VDDA_UHF_FN_1
VDDA
C4214
2.2uF
U4507
VCOBIAS_2
L4225
C4227 U4506
33nH
PRESC
100pF
C4226 C4229
VSF_UHF_FN_1
4.58 VDC
VSF
R4251
C4253
39K C4254
C4252
4.7uF
0.1uF
C4255 1000pF
100pF DATA_UHF_FN_1
DATA
MODIN_UHF_FN_1
MODIN
CSX_UHF_FN_1
CSX
CLK_UHF_FN_1
CLK
C4243
C4242 C4245
100pF 100pF
100pF
L4231
2.2uH
C4231 C4233
C4232
.01uF .01uF 2.2uF
C4234
.01uF
ZWG0130270-B
UHF 25-40W PCB 8480643Z06 / Schematic