Motorola GP328 Detailed Service Manual page 213

Circuit Board/Schematic Diagrams and Parts List
C281
R245
100pF
240
L281 L273
390nH 39nH
C272
1pF
L271
56nH
RX_INJ
TX_INJ
SH241 SH242
SHIELD SHIELD
1 1
VCO TOP SHIELD VCO BOTTOM SHIELD
3
5V
2
AUX 3
C297
.01uF
1
VSF
C276
C286
4.6V
2.2uF
0.1uF
C273
0.1uF
18 14
10
TX_OUT
8
RX_OUT
SUPER_FLTR
12
PRESC
PRESC_OUT COLL_RFIN
C271
RX_BASE
U241
1pF
7
Rx_sw RX_SWITCH 50U54 RX_EMITTER
13
Tx_sw TX_SWITCH TX_BASE
TX_EMITTER
17 11 9
Q261
4
10K
4.7K
Q260
R260
1K
4
10K
47K
4.7K
47K
R242
180
C285
100pF
C246
100pF
1
TX_IADJ
2
RX_IADJ
3
2 Q241
4
BFQ67W
5
6
16
3
15
20
FLIP_IN
19
TRB_IN
1.1V
R253
7.5K
4.6V
R254
5.6K
C289
100pF
3
C255
100pF
47K
2 RESONATOR
AUX 4
47K
R252
1
R251
200
22
C250
L243
7.5pF
RESONATOR
3
R241
20
C242
7.5pF
2
C243
R244
1 6.8pF
12K
C245
2.7pF
C244
R243
10K 7pF
Rx_sw
1
2V
4.6V
L282
390nH
VSF
R248
6.8pF
C247
C248
100pF 0.1uF
Tx_sw
C252
C254
13pF
2.7pF
C253
NU
L253 1
C256
13pF
2
3
330-400MHz Voltage Controlled Oscillator Schematic Diagram
6D-19
L242
390nH
CR243 CR242
2.9V Rx, 3.1V Tx@330MHz
9.6V Rx, 9.8V Tx@400MHz
L241
390nH
VCTRL
C241
100pF
CR241
A1 A2
1 2
L251
180nH
C251
CR252 CR251
100pF
ZMY0130351-O