Denon DVD-3930 Service Manual

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

Contents

33DVD-3930/3930CI(2) CD or DVD check process(3) SACD check processCheck the RF signal.GU-3749-1(MAIN UNIT)• Check the voltage of Test-Point (TP))• TP[mAMON1] [AMON2]: differential output about700mVp-pN.G. Check Soldering.GU-3749-1(MAIN UNIT)• Check the circumference soldering of [IC157]O.K.Check Power Supply Voltages.GU-3749-1(MAIN UNIT)• [IC401]+3.3_D2, +2.5_D2 OK?N.G. Check Soldering.GU-3749-1(MAIN UNIT)• [IC101](BA25BCOFP-E2)O.K.Check Oscillation waveform.GU-3749-1(MAIN UNIT)• [IC401](CXD2753): 11pin33.87MHz(3.3V) OK?N.G. Check Soldering.GU-3749-1(MAIN UNIT)• [IC401]: 11pin, R271O.K.Check Reset signal.GU-3749-1(MAIN UNIT)• [IC401]: 9pin"H" level OK?N.G. Check Soldering.GU-3749-1(MAIN UNIT)• R422O.K.Check Bus Line.GU-3749-1(MAIN UNIT)Check Address, Data Bus between[IC401] and [IC409](SDRAM)"H" "L" alternate?N.G.Check Soldering.• Address, Data Bus, Control Signal.[DQ0-7], [D_MA0-11], [DCLK], [DCKE], [DWE],[DCAS], [DRAS]• R440-459, R404-408O.K.Check Data Line.GU-3749-1(MAIN UNIT)• [SD0-7], [XSAC], [XSHD2], [SDCK], [SDEF], [XSRQ]"H" "L" alternate?N.G.Check Soldering.GU-3749-1(MAIN UNIT)• [IC401]:164-176pin, R271• [IC414]O.K.Check signal for Water Mark.GU-3749-1(MAIN UNIT)• PSP_MCK, PSP_WAD1-PSP_WAD7"H" "L" alternate?• The test mode "TE" is executed. 190 over?N.G.Check Soldering.GU-3749-1(MAIN UNIT)• [IC401]: 1, 23, 117-120, 111-114pinR418, R421, RR406-411O.K.ENDENDw 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