Ciclotron-DBS3000-pwr-sch维修电路原理图.pdf

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1、ARQUIVO:.DBS3000_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 3000VISTA FRONTALBD 135BD 1362SC52482SA19642SA19412SC5198 VISTASUPERIORIC1002/2040662K247K100pF2K2470K10K100Kx50V27Vx1W10K100Kx50V27Vx1W2K7x1W47uFx100V2K7x1W2SC524810K2SA1964100Rx

2、1W0.47Rx5W0.47Rx5W100Rx1W39pFx500V47Rx1W47Rx1W2SA19642SC5248OVERLOAD CH A/BPL282BD135470R12K100R1N41481N414812K47uF100R47uF470R100Kx100V10Rx5WOUT A/B OUT A/B PL235ACANAL A / CANAL BIC1002/202K247uFx100V2K2CH A/B22K22pFx100V47uF47uF1K1K500R180R330R220R500R10K10KBD135BD1361N4148AJUSTE OV AJUSTE CORREN

3、TE27K1N5402100Kx100V100Kx100V1N54020.47Rx5W0.47Rx5W39pFx500V4700uF x65V4700uF x65V4700uF x65V4700uF x65V4K7x2W2K2x3W2K2x3W8 x 1N5402PL236A220VVENTOINHAFONTE10A110VPLA005ONTERRA EXTERNOREDE10Kx630V22OVTDBS3000CH BCH A250V x 15ACH ATEMP B1K233K4K7CH B220R22K4K74K7100uFBC54733K100K6V2TERMOSTATO1KBC5574

4、.7uF22K1K100uF FIXADO NO DISSIPADORCH BCH B FIXADO NO DISSIPADORCH APL278A680RTERMOSTATOCH A4.7uF100K680RINPUT CH AINPUT CH A4K710KBC547BC55710K50KBCLIP B220RVOL. CH ACLIP APL2821K2TEMP AINPUT CH B6V2INPUT CH B50KBVOL. CH B 3X2SA19410.47Rx5W0.47Rx5W 3X 2SC519810Rx2W4066+ 53,2 Vdc- 6,2 VdcCORRENTE QU

5、IESCENTETENSO DA FONTE (+B)TENSO DO TRAFO3 mV DC*43,4 VacTENSO DA FONTE (-B1)- 65,4 VdcTENSO DA FONTE (+B1)+ 6,2 VdcPOT. MXIMA+ 65,4 VdcEM REPOUSO+ 6,2 VdcTENSO DA FONTE (-B)38,2 mA ( 17,9mV DC)*- 53,2 Vdc- 6,2 VdcAJUSTE DE OV46,0 Vac* A corrente quiescente deve ser medidasobre um dos resistores de

6、0.47Rx5W,estando o aparelho com carga e semsinal de entrada.Todos resistores so de 1/4 W e todoscapacitores eletrolticos so de 25V,exceto aqueles com indicao.* O ajuste de 0V dever ser feito nosjacks de sada, estando o aparelhosem carga e sem sinal de entrada.Os canais A e B so idnticos.1 - 29BC 547BC 557B C EBCEECB876543214321111213141087659-B+B-B+B+B1-B1+B-B-B1+B1CBE+129611810E0E2E1E3GND VDD7143113524Y2Z2Y3Z3Z0Y0Y1Z1+25768341+RadioFans.CN 收音机爱 好者资料库