Motorola GP Series Detailed Service Manual page 157

UHF PCB 8480450Z03 Schematics
C281
R245
100pF
240
C276
2.2uF
L281 L273
390nH 33nH
C272
NU
L271
68nH
RX_INJ
TX_INJ
SH241 SH242
SHIELD SHIELD
1 1
VCO TOP SHIELD VCO BOTTOM SHIELD
5V (Rx)
5.05V (Tx)
3
5V
5.043V (Rx)
2
AUX3
3.218V (Tx)
C297
.01uF
1
VSF
C286
4.567V (Rx)
0.1uF
4.613V (Tx)
C273
0.1uF
10
TX_OUT TX_IADJ
8
RX_OUT RX_IADJ
SUPER_FLTR
12
PRESC PRESC_OUT COLL_RFIN
U241
C271
RX_BASE
NU
7 50U54
Rx_sw
RX_SWITCH RX_EMITTER
13
Tx_sw
TX_SWITCH TX_BASE
TX_EMITTER
FLIP_IN
TRB_IN
9.59mV (Rx)
4.998V (Tx)
Q261
4 3
DD
2
Q260
R260
1K
4 1
9.55mV (Rx)
5.058V (Tx)
R242
200
C285
100pF
C246
100pF
R244
12K
1
2
3
2 Q241
4
BFQ67W
5
6 1
16
3
15 L282
1.978V (Rx)
390nH
20
19
4.639V (Rx)
R253
7.5K
Tx_sw
R254
7.5K
C289
C254
100pF
3.6pF
C255
L253
100pF
RESONATOR
AUX4
R252
R251
330 2
18
P2
C250
L243
7.5pF
RESONATOR
3
R241
18
C242
7.5pF
2
C243
1
7.5pF
C245
2.4pF
CR243
R243 C244
10K
2pF
Rx_sw
VSF
CR241
R248
30
A1
C248
1
0.1uF
C247
100pF
C252
L251
10pF
33nH
C253 CR251
1.8pF
UHF (403-470 MHz) Voltage Controlled Oscillator
3-13
L242
220nH
CR242 3.499V (Rx),4.125V (Tx)@403.355MHz
8.798V (Rx),9.216V (Tx)@469.985MHz
L241
390nH
VCTRL
C241
100pF
A2
2
C251
100pF
ZMY0130019-D