Denon RCD-M39 Service Manual
Also see for RCD-M39: Getting started guideOwner's manualOwner's manualService manualGetting started
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Contents
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462. No Sound, Noise generated2.1. CD PLAYCheck Power Supply Voltages for CD.MCU_CD B'D• D+3.3V [IC22]: 2pi 3.3V OK?• +1.5V [IC23] : 2pi 1.5V OK?Check Power Supply Voltages for DAC.INPUT B'D• [IC57] :1,8,20pin 3.3V OK?• [IC54] :2pin 3.3V OK?Check Reset signal for CD.MCU_CD B'D• [IC21] : 69pin /RST "H" level O.K.?• [IC41] : 61pin DSP_RST "H" level O.K.?• [IC11] : 58pin CD_DSP_RST "H" level O.K.?Check Oscillation waveform.MCU_CD B'D• [IC21] : 49pin XO16.9344MHz OK?Check Oscillation waveform.MCU_CD B'D• [IC41]:73pin X29.0MHz OK?Check Clock Signal for DAC.INPUT B'D• [IC57]:12pin SCK12.288MHz OK?Check controll signal for DAC.INPUT B'D• [IC57] : 17pin XSMT (Mute) "H" OK?Check Power Supply Voltages for CD.MCU_CD B'D• [PMUP] : 1,2pin +8VM• [PMMO] : 6,7pin USB_5VPOWWER B'D• [PMSN] : 6pin DC_9VCheck Soldering.• MCU_CD B'D [PMUP] : 1,2pin +8VM[PMMO] : 7pin USB_5V• POWER B'DCheck Parts• [IC71]Check Soldering.• [IC22] on MCU_CD B'D• [IC23] on MCU_CD B'DCheck Parts• [IC22],[IC23]Check Soldering.• [CBIB] : 1pin SW+5V• POWER B'DCheck Soldering.• [IC11] : 58pin CD_DSP_RST on MCU_CD B'D• [IC41] : 61pin DSP_RST on MCU_CD B'DCheck Soldering.• [X201] on MCU_CD B'DCheck Soldering.• [X401] on MCU_CD B'DCheck Soldering.• [IC21] on MCU_CD B'D• [FCMC] on MCU_CD B'D• [FCIC] on INPUT B'DCheck Soldering.• [IC11] on MCU_CD B'D• [FCMC] : 8pin DAC_XSMT• [FCIC] 8pin DAC_XSMTNGNGNGNGNGNGNGNGOKOKOKOKOKOKOKOK |
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