Motorola 6864115B62-C Detailed Service Manual page 338

4-52
C4372 C4371
R4302 L4304
100pF 0.1uF
390nH
10K
NU
C4309
100pF
C4306
2pF
C4305
1pF
1 P1
NU L4303
RESONATOR
C4302 C4303 C4304
2
8.2pF 8.2pF 3.9pF R4303
30
P2
C4307
3 P3
100pF
L4302
CR4303 CR4302
390nH
TXSW
R4304
180
CR4301
R4311
7.5K
L4301
390nH
C4317 C4318
C4301
100pF 0.1uF
100pF
NU
R4315
TRL_UHF_VCO
0
L4311
- 11 VDC C4312
390nH
12pF
C4316 C4311
0.1uF 100pF CR4311
C4321
1pF
2.6 VDC (Tx)
R4321
VCOMOD_UHF_VCO 3.1 VDC (Rx)
56K
C4325
4.7uF
C4323 C4322
CR4321
1000pF 100pF
NU NU
C4355 C4352 C4351 C4354
2.2uF 0.1uF
100pF 2.2uF
L4305
390nH
R4305 C4361
10 1000pF
R4360
270
Q4301
4.54 VDC 2.35 VDC
(Tx)
1 10
TX_IADJ TX_OUT
2 8
RX_IADJ RX_OUT
3
4.54 VDC
SUPER_FLTR
(Rx)
4 12
0 VDC (Tx)
COLL_RFIN PRESC_OUT
2.45 VDC (Rx) 5
U4301
RX_BASE
6 50U54 7
RX_EMITTER RX_SWITCH
16 13
TX_BASE TX_SWITCH
1.91 VDC (Tx) 15
TX_EMITTER
0 VDC (Rx) 20
FLIP_IN
19
TRB_IN
TRB_UHF_VCO
L4313
TRB
390nH
R4381
0 VDC (Rx)
470
4.97 VDC (Tx)
C4381
R4312 0.1uF
NU
5.6K
TXSW
4.54 VDC (Tx)
C4314
0 VDC (Rx)
1.5pF
C4382
R4314
C4315
100pF
270
100pF
NU
1 P1
L4312
RESONATOR
C4319
C4313
R4313
1pF 3.9pF
30
NU NU
2
P2
3 P3
4.58 VDC
VSF
R4322
10K
C4324
R4323
2.4pF
100K
GROUND
C4353
R4361
0.1uF
180
L4331
33nH
C4362
0.22uF
C4332
R4332
NU
0.1uF 22K
L4361
NU NU
33nH
C4364
R4362
5.6pF
TXINJ_UHF_VCO
10
TXINJ
4 to 6 dBm
L4371
R4331
68nH
C4331
22
6.8pF
C4363
1pF
NU
C4373
1pF
C4374 NU
1pF
NU
VSF
R4363
1K
PRESC_UHF_VCO
NU
PRESC
L4362
33nH -18 to -16 dBm (Rx)
-16 to -11 dBm (Tx)
C4365
3.3pF
4.42 VDC (Rx)
0 VDC (Tx)
RXSW
C4383
100pF
NU
C4336
0
.022uF
NU
R4342 L4333
2.2K 390nH
L4332
R4336
15nH 1K
NU NU
R4339
C4335
22 C4337
100pF
NU 51pF
Q4332
C4333
51pF
R4338
NU
220
R4343
NU
Q4331
1K
MMBR941
NU
R4344
R4347 10
0
R4340
220
R4333
NU
10K
R4334
NU
0
NU
C4334
R4335
51pF
10
NU
NU
SH4301
SHIELD
UHF (403-470 MHz) Voltage Controlled Oscillator
UHF 1-25W PCB 8471224L03
RXINJ_UHF_VCO_1
RXINJ
13.5 to 16 dBm
C4339
R4345
1pF
0
NU
NU
C4338
51pF
SH4302
SHIELD
GND