Denon DVD-2900 Service Manual
Also see for DVD-2900: Brochure & specsSetup guideSpecificationsOperating instructionsOperating instructions
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2121DVD-2900TROUBLE SHOOTING1. GU-3494 MAIN PWB1.1. FL TUBE doesn’t light(1) Check the Set-up process of Panel μ-COMCheck Power Supply Voltages.• [IC301]:D1,D4+3.3V_D1, +3.3V_D4Check Oscillation Waveform.• [IC301]:25MHz at 31pin.Check soldering.• X301 on MAIN PWB.Check Reset Signal.• [IC301]:“H” level at 35pin?Check Data Bus betweenIC301 and IC302(Flash ROM):• Does the level change at FD(0--15)Pins of IC301Check soldering.• IC303(Reset IC) on MAIN PWB.(1)Check soldering of CX171.(2)GU-3496 is N.G.(No Good).Check soldering.• CY121 on MAIN PWB.Continue to next step.Check the Set-up process of B/E μ-COM.Check Data Bus betweenFLD Driver(GU-3496 [IC101])• [RST]: “H” level?Check soldering.(short-circuit,open)• FD(0--15), PA(1--16), PWE, PCE, POE,O.K.N.G.O.K.O.K.O.K.O.K.N.G.N.G.N.G.N.G.www. xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com |
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