Ciclotron-DBS1500-pwr-sch(1)维修电路原理图.pdf

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1、ARQUIVO:.DBS1500_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 1500VISTA FRONTALBD 135BD 1362SC52482SA1964INPUT CH BVOL. CH A1K4K7CH A22KBC54750KB50KBINPUT CH A4K7CLIP B4.7uF1K4.7uF22KCLIP A15K4K7VOL. CH BINPUT CH BPL343BC557BC5474K7BC557CH B

2、15K220RINPUT CH APL281220R100K15V100uF1K5x2W15V1K5x2W100uF100K2K247K100pF2K2470K10K100Kx50V27Vx1W10K100Kx50V27Vx1W1K5x1W47uFx63V1K5x1W680R47uF47uF22pFx100V22K47R270R220R470R1K2SC524810K2SA19642SA19412SC5198100Rx1W0.47Rx5W0.47Rx5W100Rx1W39pFx500V47Rx1W47Rx1W2SA1964470R39pFx500V2SC5248OVERLOAD CH A/BP

3、L28110KBD13610KBD1351N4148BD135390R12K100R1N41481N414812K47uF100R47uF390R1N54021N5402100Kx100V100Kx100V10Rx2W100Kx100V10Rx5WOUT A/B OUT A/B PL321CANAL A / CANAL BIC1002/202K2CH A/B47uFx63V2K22SC51982SA19410.47Rx5W0.47Rx5WFONTEPL320AREDE6A110V250V x 10A100R22OVPLA006 2 x TDBS15004 x 1N54024 x 1N54023

4、300uF x63V3300uF x63V3300uF x63V3300uF x63VCH ACH B1N40011N40013K9x2WONTERRA EXTERNO10Kx1K2SA19412SC5198 VISTASUPERIORIC1002/20AJUSTE OV AJUSTECORRENTETENSO DA FONTE (+B1)+ 15,4 VdcTENSO DA FONTE (-B)TENSO DA FONTE (-B1)+ 53,8 Vdc- 53,8 Vdc- 15,4 VdcTENSO DO TRAFOAJUSTE DE OVPOT. MXIMA3 mV DC*38,8 V

5、ac34,5 Vac- 39,9 VdcEM REPOUSO+ 39,9 VdcCORRENTE QUIESCENTETENSO DA FONTE (+B)25,5 mA (11,9mV DC)*+ 15,4 Vdc- 15,4 Vdc* A corrente quiescente deve ser medidasobre um dos resistores de 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 - 31BC 547BC 557B C EBCE+B+B-B-B-B+B+BECB87654321+BCBE_+_+25768341+RadioFans.CN 收音机爱 好者资料库