Motorola 6864115B62-C Detailed Service Manual page 195

VHF 1-25W PCB 8486172B04 / Schematics
7.44VDC (R)
0VDC (T)
L3302
100nH
R3303
2.2K
RXINJ_VHF_VCO_1 2.18VDC (R)
C3302
L3301 0VDC (T)
18nH
Q3301
6.8pF
RXINJ
C3304
R3306
C3301
C3306 R3301
15pF 330pF
5.1pF 75
NU
NU
R3308
R3304 R3305
0
1K 220
NU
1.49VDC (R)
0VDC (T)
R3302
C3303
100
.01uF
TXINJ_VHF_VCO_1
0 - 5dBm (T)
TXINJ
PRESC_VHF_VCO_1
- 2 to 7dBm (T)
PRESC
0VDC (R)
TRB_VHF_VCO_1 4.91VDC (T)
TRB
Q3303
9.14VDC (R)
UMC5N
0VDC (T) 9.12VDC
3
4
3.83VDC (R)
2
0VDC (T)
5 1
R3311
100
R3312
100
C3311 L3331
NU
.022uF 68nH
C3331
C3312 10pF
R3319
100nH
NU
0.1uF
47K
NU
NU
R3313
1K
NU
R3321
L3311
10K
100nH
NU
R3316
4.78VDC (R)
0
4.27VDC (T)
C3305
22
5.6pF
C3314
NU
R3318
NU Q3302
NU
22
6.8pF
R3307
220
NU R3317
R3314
10 10K
C3316
NU NU
3.3pF
C3313
R3315
330pF
220
NU
NU
2.56VDC (R)
2.66VDC (T)
C3317
33pF
VSF
C3335
.01uF
R3331
R3335
C3336
33
.01uF
47
4.40VDC
C3332
C3333
1.53VDC (R)
0.1uF 0.1uF
C3348
L3332
.01uF
Q3304
BFQ67W
4.78VDC (R) C3334
.022uF
4.22VDC (T)
0.92VDC (R)
18
14 0VDC (T)
VCC_LOGIC VCC_BUFFERS
U3301
VCO IC
1
TX_IADJ
10
2
TX_OUT
8 RX_IADJ
3
RX_OUT
SUPER_FLTR
4
12
COLL_RFIN
PRESC_OUT 5
7
RX_BASE
RX_SW 6
13
RX_EMITTER
TX_SW 16
TX_BASE
15
TX_EMITTER
20
FLIP_IN
19
TRB_IN
C3315 R3351
15pF 20K
17 11 9
C3351
4.52VDC (R)
0VDC (T)
.01uF
R3355
L3317
33nH
0VDC (R)
20K
4.52VDC (T)
C3355
L3318 R3323
.01uF
VSF
100nH
1K
C3361
C3318
1000pF
5.6pF
R3361
220
C3319
1000pF
VSF
9V3_VHF_VCO_3
9V3_VHF_VCO_2
4.97VDC
4.54VDC
L3333
1uH
C3337 C3324
0.1uF .01uF
0VDC (T)
C3344
C3341 1.8pF
1000pF
L3346
C3345
R3342 35.5nH
R3341
39
20pF
R3336
C3342
220
L3341
3pF 15K
8nH
L3345
1uH
0VDC (T)
1.42VDC (R)
R3352 C3352
12K
.022uF
0VDC (R)
L3351
1.92VDC (T)
1uH
R3356 C3356
.022uF C3357
12K
7.5pF
C3364
R3362
47
18pF
C3363
L3362
C3362 L3361
68pF 68nH
56nH
5.6pF
R3363 R3364
39K 2.2K
D3362
VHF (136-174 MHz) Voltage Controlled Oscillator
4-9
9V3_VHF_VCO_1
9V3
VDDA_VHF_VCO_1
VDDA
VSF_VHF_VCO_1
VSF
D3341 VCTRL_VHF_VCO_1
L3344 R3343
2.5 - 11VDC
VCTRL
1uH
100
L3343 C3346
180nH .01uF
C3347
.01uF
VCOBIAS_1_VHF_VCO_1
R3353
VCOBIAS_1
100K
VCOBIAS_2_VHF_VCO_1
R3354
VCOBIAS_2
150K
D3361
L3364
1uH
L3363 C3365
56nH 1000pF
4.52VDC (R)
2.62VDC (T)
VCOMOD
VCOMOD_VHF_VCO_1
ZWG0130394-P4