Ciclotron-DBS2000-pwr-sch(1)维修电路原理图.pdf

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1、FOLHA: 01/01DATA: 25/05/2001VISTA FRONTALBD 135BD 1362SC52482SA19642SA19412SC5198 VISTASUPERIORIC1002/202K247K100pF2K2470K10K100Kx50V27Vx1W10K100Kx50V27Vx1W1K5x1W47uFx63V1K5x1W2SC524810K2SA19642SA19412SC5198100Rx1W0.47Rx5W0.47Rx5W100Rx1W39pFx500V47Rx1W47Rx1W2SA196439pFx500V2SC5248OVERLOAD CH A/BPL28

2、2BD135470R12K100R1N41481N414812K47uF100R47uF470R1N54021N5402100Kx100V100Kx100V10Rx2W100Kx100V10Rx5WOUT A/B OUT A/B PL328ACANAL A / CANAL BIC1002/202K247uFx63V2K22SC51982SA19410.47Rx5W0.47Rx5WCH A/B22K22pFx100V47uF47uF620R1K500R220R270R47R500R10K10KBD135BD1361N4148VOL. CH A50KB10K10K100K6V2100uF6V210

3、0K100uF1K4.7uF4K7BC557BC547220RCLIP BCLIP APL282TEMP AINPUT CH B50KBINPUT CH BVOL. CH B1K21K2TEMP BCH ACH B4K74K74K722K220R33KBC5474.7uFBC5571KTERMOSTATOCH B FIXADO NO DISSIPADORCH BPL278A250V x 15ACH ACH BTDBS200022OV10Kx630VREDETERRA EXTERNOONPLA005110V7,5AFONTEVENTOINHA220VPL2348 x 1N54022K2x2W2K

4、2x2W3K9x2W4700uF x63V4700uF x63V4700uF x63V4700uF x63V4066AJUSTE OV AJUSTE CORRENTE FIXADO NO DISSIPADORCH ACH ATERMOSTATO680RINPUT CH AINPUT CH A680R406633K22K+ 48,1 Vdc- 6,2 VdcCORRENTE QUIESCENTETENSO DA FONTE (+B)TENSO DO TRAFO3 mV DC*40,1 VacTENSO DA FONTE (-B1)- 61,5 VdcTENSO DA FONTE (+B1)+ 6

5、,2 VdcPOT. MXIMA+ 61,5 VdcEM REPOUSO+ 6,2 VdcTENSO DA FONTE (-B)25,5 mA (11,9mV DC)*- 48,1 Vdc- 6,2 VdcAJUSTE DE OV44,1 Vac1 - 30Os canais A e B so idnticos.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

6、sada, estando o aparelhosem carga e sem sinal de entrada.I N D S T R I A E L E T R N I C A L T D A.DBS 2000ARQUIVO:.DBS2000_V1.DSNCIRCUITO: POWER / FONTE * A corrente quiescente deve ser medidasobre um dos resistores de 0.47Rx5W,estando o aparelho com carga e semsinal de entrada.BC 547BC 557B C EBCEECB87654321-B+B+B1-B1+B-B1+B1-B+B-B4321111213141087659CBE+25768341+129611810E0E2E1E3GND VDD7143113524Y2Z2Y3Z3Z0Y0Y1Z1+RadioFans.CN 收音机爱 好者资料库