Denon DVD-3930 Service Manual

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

Contents

34DVD-3930/3930CI3. GU-3749-2 (VIDEO UNIT)(1) Interlace output [Y, Cb, Cr] does not outputted.Check Power Supply Voltages.GU-3749-2(VIDEO UNIT)• Digital Power Supply Voltages.+5V_V3, +3.3V_D3, +2.5V_V1N.G. Check Soldering.• [CY071], [IC500]• Circumference of [IC500](BA25BCOFP-E2)O.K.Check Digital signal for Video[1].GU-3749-2(VIDEO UNIT)• Video Encoder [IC501](ADV7324) input:[YUV0~7][CLK_P/I]N.G.Check Soldering.• [CY211]: 11-18, 20pin• Circumference of [IC501]• Circumference of [IC503](SN74LVC157APW)O.K.Check control signal for Video Encoder [IC201].GU-3749-2(VIDEO UNIT)• [SDA1], [SCK1], [RST_V]N.G. Check Soldering.• [CY211]: 1, 2, 4-7pin• Circumference of [IC501, IC502]O.K.Check Video Encoder circuit.GU-3749-2(VIDEO UNIT)• [IC501]N.G. Check the soldering [IC501]and circumference soldering of [IC501]O.K.Check Video Buffer circuit.GU-3749-2(VIDEO UNIT)• Yp/Yi: [TR502]• Pb/Cb: [TR503]• Pr/Cr: [TR504]N.G. Check the soldering [TR502~504]and circumference soldering of [TR502~504]O.K.Check Video Buffer IC circuit.GU-3749-2(VIDEO UNIT)• [IC505]N.G. Check the soldering [IC505]and circumference soldering of [IC505].O.K.Check Clamp circuit.GU-3749-2(VIDEO UNIT)• Output Terminal: [JK706~708].N.G. Check the soldering[JK706~708]and circumference soldering of [JK706~708].O.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