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ESQUEMA ELÉTRICO DO RECEPTOR USR 1700 CENT.
TOMADA DE FORÇA +5V 1 U111 CN110 AC ~ 110/220V T1 7805 +5V(TUNER) 1 2 2
}
FIO AMARELO +10VAC
D113 D112
D111 + D114 + C111 3300uF/16V C112 100nF 2 1 3
Q111 KIA1273
Q113 BC557
+5V(MODULADOR)
+12V
. TRAFO +10V / +18V
R115 R111 330R + 1K
PSAT/TV
}110/220V
RELE R117 100R
C113 470uF/16V
+
C15
C16 100nF
2
.
.
C125 + 47uF/63V + C126 47uF/63V D122 D121 R124 1K C120 1000uF/50V + D125 ZENER 27V C122 100nF VT 28V C306 100nF PULSO R120 10K R121 47K 1N4007 4R7 5W LNB(18V) R122 470R
C127 470uF/16V R123 Q115 BC547 100R
+
1N4007
1N4007
Century Electro-Electronics
TÍTULO:
Circuito da Fonte do Receptor USR1700
COD.: 10.02.015 REV.: 00 COD.: 26.10.012 REV.: USRFX 1997 DESENHADO POR: Luiz EduardoDATA: 05/12/00 APROV.: PAG.: DOC.: REV.: 00 130 1/4 PLACA:
C:\RECEPTORES\USR1700\10-02-015\ESQUEMA\USR1700-012-00.DSN
PRODUTO: USR1700
P
4R7
GND
+5V
.
}
FIO PRETO +18VAC
U112 7812 R118 R112 Q112 1 3 +12V BC547 R113 47K 10K POWER(ON/OFF) 1K Q114 BC547
D116 D117
D115 + D118 C118 100nF
2200uF/35V
+5V CN101 BARRA TRIPOLAR D124 R126 R125
ESQUEMA ELÉTRICO DO RECEPTOR USR 1700 CENT.
REV. DESCRIÇÃO APROV. DATA
+5V
SW103 POWER C301 100nF R311 5K6 R312 5K6 R302 5K6 R303 5K6 R304 R305 5K6 5K6 R306 5K6 R307 5K6 SW101 CH DOWN U301 80C51 OSC C303 40 31 19 18 VCC EA/VP X1 X2 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 RD WR PSEN ALE/P TXD RXD +5V 22K R326 47R R324 10K 1 2 3 R323 4K7 1 2 3 + C307 10uF/25V IRS R320 47R Q302 BC557 U302 1 2 3 4 1 7 2 24C04 8 3 6 4 5 7 8 6 220R 5 220R +5V 39 38 37 36 35 34 33 32 21 22 23 24 25 26 27 28 17 16 29 30 11 10 R349 R348 R347 R346 R345 R344 R343 R350 R331 R330 R329 R328 SW102 CH UP
R360 1K R361 1K R362 1K 100R 100R 100R 100R 100R 100R 100R 100R 560R 560R 560R 560R 11 7 4 2 1 10 5 3 +5V R336 R335 R334 R333 4K7 4K7 4K7 4K7 R339 R338 R337 A B C D E F G . 4K7 4K7 4K7
+5V
DISP101
100nF
DIG2
DIG3
12
9 20 12 13 14 15 1 2 3 4 5 6 7 8 R327 C304 + +5V
9
8
SKEW PSAT\TV
INT0 INT1 T0 T1 P1.0/T2 P1.1/T2X P1.2 P1.3 P1.4 P1.5 P1.6 P1.7
POWER 3 3 +5V 2 R314 5K6 1 +5V Q305 BC557 1 3 Q304 BC557 1 2 1 Q306 BC557
RE-EN SDATA SCLOCK AUD-EN VOL-EN MUTE +5V
Q303 BC557 3
2
2
10uF/16V R319 5K6 R322 5K6
+5V
Century Electro-Electronics
R318 R316 10K 10K R317 R315
IRS 301
Q301 BC547 R321 1K C305 10nF IF/BW R325 470R
TÍTULO:
Circuito do Microcontrolador do USR1700
COD.: COD.:
C302 100nF
PRODUTO: USR1700 PLACA: USRFX DOC.:
00 10.02.015 REV.: 26.10.012 REV.: 1997 APROV.: DESENHADO POR: Luiz Eduardo DATA: 05/12/00 130 REV.: 00 PAG.: 2/4
C:\RECEPTORES\USR1700\10-02-015\ESQUEMA\USR1700-012-00.DSN
6
RESET GND
LED
DIG4
D301
DIG.1
ESQUEMA ELÉTRICO DO RECEPTOR USR 1700 CENT.
+12V +12V F201 FILTRO 10.7MHz BW-150 KHz 3 2 1 U200 KIA6003 +12V
KIA6003
1 2 3 4 5 6 7 8 9 R213 R209 47R R208 330R BANDA BÁSICA R206 470K C200 L200 12uH Q210 BC 547 MUTE C206 82pF C208 10nF C210 120pF R218 10K R219 2K2 C220 10uF/16V + L206 BOBINA 10.7MHz R215 3K9 C211 10nF C216 + C214 100nF Q215 BC 547 R212 330R Q214 BC 547 3K3 3 2 1 1 2 3 4 5 6 7 8 9
R207 1K5
10uF/25V
3 2 1
3 2 1
82pF
R214 33R C212 10pF C215 100nF R217 22K
+12V R205 100R R204 R231 4K7 C205 G 47pF C203 3,3pF D201 BB 809 L202 3,3uH C204 120pF R227 470R R203 1K 1 3 +12V 1K D Q206 BC 547 C229 +12V
R216 560R
+12V
R200 10K
R201 100K
Q211 MPF102
R224 3K9
2
U203 1 2 3 4 5 6 7 8 1 16 2 15 3 14 4 PT2254 13 5 12 6 11 7 10 8 9 16 15 14 13 12 11 10 9
S
1uF/16V
+
C234 100nF
R225 10K
R250 10K +12V + C230
AUDIO
C201 100nF
C228 +
SDA SCL
R226 10K
+ C231 10uF/16V Q207 BC 547 R229 R228 100R 470R
47uF/16V
10uF/16V
R230 10K
XT201
+ +5V
C227 1uF/50V C232 100nF VOL-EN
C225 33pF OSC 1 2 3 4 5 6 7
11.160 MHz U202 1 14 2 13 3 12 4 LC7215 11 5 10 6 9 7 8 14 13 12 11 10 9 8
C226 33pF
R232 4K7 R233 10K R234 10K
Century Electro-Electronics
TÍTULO:
Circuito de Audio do USR1700
SDA SCL AUD-EN
C233 10nF
COD.: 10.02.015 REV.: 00 COD.: 26.10.012 REV.: USRFX 1997 DESENHADO POR: DATA: 05/12/00 APROV.: Luiz Eduardo PAG.: DOC.: REV.: 00 130 3/4 PLACA:
C:\RECEPTORES\USR1700\10-02-015\ESQUEMA\USR1700-012-00.DSN
PRODUTO: USR1700
ESQUEMA ELÉTRICO DO RECEPTOR USR 1700 CENT.
15 14 13 15 14 13 VLNB
U104
MODULADOR GND
VIDEO IN AUDIO IN +5V
1 2 3
VIDEO AUDIO PSAT/TV
TUNER
12 11 10 9 8 7 6 5 4 3 2 1
12 11 10 9 8 7 6 5 4 3 2 1
+5V(TUNER)
BANDA BASICA
+12V
IF/BW VT(28V) RF-EN S-CLOCK S-DATA R405 2K2 Q407 BC 547 R410 3K9 +12V C410 100nF + C411 47uF/16V AUDIO . R416 150R AUDIO VIDEO Q409 BC 547 C413 100nF (opcional) C414 + R413 150R 1000uF/10V R414 100R GND . VIDEO . CN 102
C408 100nF
R409 5K6
+ C412 47uF/16V
TUNER
U3
C401 1000uF/10V + BANDA BASICA R415 330R C400 R402 47R
C404 L400 56uH R403 47R R401 39R C403 270pF C402 10nF 330pF L401 2,2uH
C406 180pF
Q406 BC 547 R404 100R Q405 BC 547
L402 2,7uH
Q408 BC 547 R407 C409 100nF
100nF (opcional)
C405 680pF
C407 330pF R406 470R
2K2
R408 220K
R411 4K7
4
VIDEO
Century Electro-Electronics
TÍTULO:
Circuito de Video do USR1700
COD.: COD.: 00 10.02.015 REV.: 26.10.012 REV.: 1997 APROV.: PAG.: 4/4
PRODUTO: USR1900 PLACA: USRFX DESENHADO POR: DOC.: 130 Luiz Eduardo
DATA: 05/12/00 REV.: 00
C:\RECEPTORES\USR1700\10-02-015\ESQUEMA\USR1700-012-00.DSN