Motorola CP040 Informations sur les services - Page 41
Parcourez en ligne ou téléchargez le pdf Informations sur les services pour {nom_de_la_catégorie} Motorola CP040. Motorola CP040 48 pages. Commercial radios uhf1
Également pour Motorola CP040 : Manuel de service détaillé (28 pages), Informations sur les services (46 pages), Manuel de l'utilisateur (18 pages), Informations sur les services (30 pages)
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VHF PCB 8486769Z02-A Schematic Diagrams
V_STEER
L251
VCO_V_STEER
560nH
3.0V to 8.0V
C251
.01uF
SH250
SHIELD
1
V_SF
V_SF
L270
4.5V
VCO_VSF
560nH
C270
1200pF
R270
18
C271
D251
.01uF
C255
C253
18pF
16pF
1%
1%
L254
33nH
C256
C254
10pF
6pF
1.0%
L253
L252
100nH
560nH
L255
C257
36pF
330nH
1%
L262
560nH
D261
C263
C265
27pF
15pF
1%
1%
L264
47nH
C264
L263
10pF
100nH
V_SF
C268
2.7pF
3.7%
R262
6.8K
VCO_MOD
VCO_MOD
R261
36K
D262
1SV229
SH251
SH253
SHIELD
SHIELD
1
1
3V
VCO_3V
C272
0.1uF
R272
9.1K
C273
R271
8.2K
.01uF
R274
L271
33
1
NU
TX_IADJ
TX_OUT
2
RX_IADJ
RX_OUT
3
SUPER_FLTR
4
COLL_RFIN
PRESC_OUT
5
RX_BASE
6
U251
RX_EMITTER
RX_SWITCH
16
TX_BASE
TX_SWITCH
15
TX_EMITTER
20
R254
FLIP_IN
19
220
TRB_IN
C258
1200pF
R253
47
C266
10pF
1.0%
R264
220
C269
1500pF
V_SF
R263
30
C267
L265
36pF
1%
330nH
TRB
R275
TX: 3V
VCO_TRB
RX: 0V
0
C275
1200pF
R273
300
C292
1200pF
C274
C285
0.1uF
0.1uF
L282
R284
L292
47nH
680
68nH
10
8
C290
51pF
12
206 mV (RF)
7
L291
NC
27nH
13
NC
L281
68nH
5R
VCO_5R
R281
C284
1200pF
9.1K
R282
C281
750
1200pF
1.89 V (Rx)
C286
R286
0
11pF
R280
6.8K
L283
NU
PRESC
R276
L276
C277
VCO_PRESC
100nH
1K
1200pF
C276
5.1pF
VHF (136-162 MHz) Voltage Controlled Oscillator Schematic
4-9
1200 mV (RF)
TX_INJ
VCO_TX_INJ
C291
43pF
850 mV (RF)
RX_INJ
C282
VCO_RX_INJ
3
9.1pF
1
Q280
BFS540
2
1.35 V (Rx)
R283
C283
1200pF
180