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LGB-LMB-AV889 amplifier power on no audio

Time£º2015-05-25 08:53:35  Source£ºNetwork  Author£ºUnknown  Clicks£º1144
  

After startup. Relay can sometimes snap. But delay time is significantly longer, sometimes simply do not snap.gDCservice manual download site
gDCservice manual download site
From the relay to pull-in, but delayed for a long time that point of view, the "fault" should be the speaker protection circuit. The machine also uses simple protecting circuit, relay drive tube use composite pipe position. First time delay circuit (R3, C3) to inspect, C3 have leakage, replace it later, "glitch" excluded.gDCservice manual download site