Denon DVD-3930 Service Manual

Also see for DVD-3930: Specification Operating instructions Service manual

Contents

38DVD-3930/3930CICheck DATA Signal -4GU-3751-1(AUDIO (DIGITAL) UNIT)• [IC103](EP2C8Q208C8N):output to DAC(MIXL/MIXR/FL/FR/C/SW/SL/SR)4~6, 8, 10~15, 30, 31, 33pinGU-3751-2(AUDIO/MIX UNIT)• [IC702](DAC for MIXL), [IC707](DAC for MIXR)4~7pin(WCK=16/8/4fs, BCK=1024/512/256fs,DATA,MCK=1024/512/256fs)* fs=48/96/192GU-3751-2(AUDIO/5.1 UNIT)• [IC401](DAC for FL/FR),[IC406](DAC for C/SW),[IC411](DAC for SL/SR) : input4~7pin(LRCK=1fs, BCK=64fs, DATA, MCK=256fs)N.G.Check Soldering.• CX125, CY125, CX126, CY126,CX127, CY127, CX129, CY129(GU-3751-1 to GU-3751-2 or GU-3751-3)O.K.Check DAC outputGU-3751-2(AUDIO/MIX UNIT)• [IC702] [IC707]: outputGU-3751-3(AUDIO/5.1 UNIT)• [IC401] [IC406] [IC411]: outputN.G.Check Soldering./Check Supply Voltages.• [IC702] [IC707]10~12, 14pin(control line)• [IC401] [IC406] [IC411]10~12, 14pin(control line)O.K.Check OP AMP outputGU-3751-2(AUDIO/MIX UNIT)• [IC703]~[IC706], [IC708]~[IC711]GU-3751-3(AUDIO/5.1 UNIT)• [IC402]~[IC405], [IC407]~[IC410], [IC412]~[IC415]N.G.Check Soldering./Check Power Supply Voltages.• [IC703]~[IC706], [IC708]~[IC711]POWER C,R• [IC402]~[IC405], [IC407]~[IC410], [IC412]~[IC415]POWER C,RO.K.Check AUDIO OUTGU-3751-2(AUDIO/MIX UNIT)• Check OUTPUT terminal (Each channels)GU-3751-3(AUDIO/5.1 UNIT)• Check OUTPUT terminal (Each channels)N.G.Check Soldering.• MUTE circuit: MUTE TR (TR709~712, TR715~718,TR721,722)TR408~437TR-BASE terminal: about -9V (at MUTE off)• Check Soldering. Output JackO.K.ENDw w w . x i a o y u 1 6 3 . c o mQ Q 3 7 6 3 1 5 1 5 0 992894298T E L 1 3 9 4 2 2 9 6 5 1 3 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com