Ciclotron-DBS360-pwr-sch维修电路原理图.pdf

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1、ARQUIVO:.DBS360_V1.DSNFOLHA: 01/01DATA: 25/05/2001CIRCUITO: POWER / FONTE I N D S T R I A E L E T R N I C A L T D A.DBS 360VISTA FRONTAL2K247K100pF2K2470K10K100K18V10K100K18V560Rx1/2W47uFx40V47uFx40V560Rx1/2W2K247uF47uF22pFx100V33K100R330R330R470R1K5BD13910KBD140TIP42BTIP41B100Rx1W0.47Rx5W0.47Rx5W10

2、0Rx1W39pFx500V47Rx1/2W47Rx1/2WBD140470R39pFx500VBD139OVERLOAD CH A/BPL28010KBC32710KBC3371N4148BD135680R12K100R1N41481N414812K47uF100R47uF680R1N40011N4001100Kx50V100Kx50V10Rx2W100Kx50V10Rx2WOUT A/B OUT A/B PL230ACANAL A / CANAL B22OVTDBS360REDE1,5A10Kx630V110V8 x 1N40011000uF x35V1000uF x35V2200uF x

3、35V2200uF x35V2K7x1WCH ACH BONTIP 41BTIP 42BBD 135BD 139BD 140 BC 337BC 327* O ajuste de 0V dever ser feito nosjacks de sada, estando o aparelhosem carga e sem sinal de entrada.IC1003Todos resistores so de 1/4 W e todoscapacitores eletrolticos so de 25V,exceto aqueles com indicao.2K24K7220RBC54722KB

4、C55750KB15K4.7uF4K7VOL. CH AVOL. CH BBC547220R50KB4K7100uF22K4K74.7uFBC557100K6V215K4K7CLIP BPL279PL280INPUT CH AINPUT CH AINPUT CH BINPUT CH B6V2100uF100K1KCH BCH ACH A/BCLIP APL229FONTE1Kx1W1Kx1WOs canais A e B so idnticos.TERRA EXTERNO250V x 10A2K2IC1003 VISTASUPERIORPLA005AJUSTE OVAJUSTECORRENTE

5、* A corrente quiescente deve ser medidasobre um dos resistores de 0.47Rx5W,estando o aparelho com carga e semsinal de entrada.TENSO DO TRAFOTENSO DA FONTE (+B)TENSO DA FONTE (-B)TENSO DA FONTE (-B1)TENSO DA FONTE (+B1)EM REPOUSO POT. MXIMA23,4 Vac21,0 Vac+ 31,9 Vdc+ 25,2 Vdc- 31,9 Vdc+ 6,2 Vdc- 6,2 Vdc- 25,2 Vdc+ 6,2 Vdc- 6,2 Vdc3 mV DC*12,7 mA ( 5,9mV DC)*AJUSTE DE OVCORRENTE QUIESCENTE1 - 33BC 557BC 547+B-B+B-B-B+BB C ECBEBCE+B1-B1+B1-B112345678+62148735+RadioFans.CN 收音机爱 好者资料库