Motorola 6864115B62-C Detailed Service Manual page 243

VHF 25-45W PCB 8486140B15 / Schematics
7.44VDC (R)
0VDC (T)
L3302
100nH
R3303
2.2K
11-14dBm (R)
C3302
2.18VDC (R)
RXINJ_VHF_VCO_1 6.8pF
L3301
0VDC (T)
G
18nH Q3301
RXINJ
C3304
NU
C3301
C3306 R3301
15pF
75
5.1pF 330pF
NU
R3304
R3308
1K
0
1.49VDC (R)
0VDC (T)
R3302 C3303
100 .01uF
TXINJ_VHF_VCO_1
0-5dBm (T)
TXINJ G
PRESC_VHF_VCO_1
-2 to 7dBm
PRESC G
0VDC (R)
TRB_VHF_VCO_1
4.91VDC (T)
TRB
G
Q3303
UMC5N
9.14VDC (R)
0VDC (T) 9.21VDC
4 3
3.83VDC (R)
2
0VDC (T)
1
NC
R3311
100
R3312
100
L3331
C3311
NU
68nH
.022uF
C3312
C3331
0.1uF
R3319
10pF
NU 47K
NU
NU
L3311
R3313
100nH
1K
NU
NU
R3321
10K
R3316
0
C3305
R3306
NU NU
R3318
22
5.6pF
C3314
22
Q3302
R3305
R3307 NU
220 6.8pF
220
NU
NU
R3317
R3314
10K
10 C3316
NU
NU 3.3pF
C3313
R3315
330pF
220
NU NU
C3317
33pF
SH3301
SHIELD
1
VSF
C3335
.01uF
R3331 R3335
C3336
33
.01uF
L3332 47
100nH
4.40VDC
C3332 C3333
0.1uF 0.1uF
C3348
.01uF
Q3304
BFQ67W
C3334
.022uF
0.92VDC (R)
0VDC (T)
U3301
50U54
18 14
VCC_LOGIC VCC_BUFFERS
10 1
TX_OUT TX_IADJ
8 2
RX_OUT RX_IADJ
3
SUPER_FLTR
12 4
PRESC_OUT COLL_RFIN
5
RX_BASE NC
7 6
RX_SWITCH RX_EMITTER NC
13 16
TX_SWITCH TX_BASE
15
TX_EMITTER
20
FLIP_IN
19
TRB_IN
C3315
R3351
15pF
20K
C3351
4.52VDC (R)
0VDC (T)
.01uF
L3317
R3355
33nH
20K
0VDC (R)
4.52VDC (T)
C3355
L3318 R3323
VSF
.01uF
100nH
1K
C3361
C3318
5.6pF 1000pF
R3361
220
C3319
1000pF
9V3_VHF_VCO_3 9V3_VHF_VCO_2
4.97VDC
4.54VDC
L3333
1uH
C3337 C3324
0.1uF
.01uF
1.53VDC (R)
0VDC (T)
C3344
C3341 1.8pF
1000pF
L3346
C3345
R3342 35.5nH
R3341 39
20pF
R3336
L3341 C3342
220
15K
8nH 3pF
L3345
1uH
1.42VDC (R)
0VDC (T)
R3352 C3352
.022uF
12K
0VDC (R)
L3351
1.92VDC (T)
1uH
R3356 C3356
C3357
12K .022uF
7.5pF
C3364
15pF
R3362
47
C3362 L3362
C3363 L3361
5.6pF 68nH
68pF 56nH
R3363 R3364
VSF
39K 47K
NU
D3362
VHF (136-174 MHz) Voltage Controlled Oscillator
4-57
9V3_VHF_VCO_1
9V3
G
VDDA_VHF_VCO_1
VDDA
G
VSF_VHF_VCO_1
G VSF
D3341
VCTRL_VHF_VCO_1
R3343
L3344
2.5-11VDC
G
VCTRL
1uH
100
L3343
C3346
180nH
.01uF
C3347
.01uF
VCOBIAS_1_VHF_VCO_1
R3353
VCOBIAS_1
G
100K
VCOBIAS_2_VHF_VCO_1
R3354
VCOBIAS_2
G
150K
D3361
L3364
1uH
C3365
L3363
1000pF
56nH
4.52VDC (R)
2.62VDC (T)
G VCOMOD
VCOMOD_VHF_VCO_1
ZWG0131059-O