DV-720/DV-720W
DV-720X/DV-770X
YesYes
IC6001 26PIN ADAC DA IC6001 27PIN ADAC CK IC6001 28PIN ADAC L IC6001 22PIN RSTO I
IC6001 5PIN AMCLK IC6001 3PIN ABCLK IC6001 1PIN ALRCLK IC6001 2PIN AOUT0
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Check the main unit.(IC601)Check the line between the pins of main unit connector CN801 and the pins of IC6001. CN801 3PIN CN801 4PIN CN801 5PIN CN801 6PIN Check or replace IC6001.Check the main unit.(IC504)Check the line between the pins of main unit connector CN801 and the pins of IC6001. CN801 10PIN CN801 11PIN CN801 12PIN CN801 16PIN Check or replace IC6001.Check the peripheral circuit of AUDIO DAC (IC6001), AUDIO AMP.(IC6004) and AUDIO MUTE (Q6007-8) circuit.
NoNoNoNoNo
YesYesYesYesYes
FLOW CHART NO.22(For DV-720/720W/720X)Sound do not operate normally.Set the disc on the disc tray.Are the digital audio interface signals outputted to the pins of main unit connector CN801? CN801 3PIN AMCLK CN801 4PIN ABCLK CN801 5PIN ALRCLK CN801 6PIN AOUT0Are the digital audio interface signals inputted to the pins of IC6001? IC6001 5PIN AMCLK IC6001 3PIN ABCKI IC6001 1PIN ALRCIN IC6001 2PIN AOUT0Are the system control interface signals outputted to the pins of main unit connector CN801? CN801 10PIN ADAC DA CN801 11PIN ADAC CK CN801 12PIN ADAC L CN801 16PIN RSTO IAre the system control interface signals inputted to the pins of IC6001? IC6001 26PIN ADAC DA IC6001 27PIN ADAC CK IC6001 28PIN ADAC L IC6001 22PIN RSTO IAre the audio signals output to the specific outputted terminals? Are the audio signals outputted to the FRONT -L/R OUT terminal(J2002)?
NoYesYes
IC6001 26PIN ADAC DA IC6001 27PIN ADAC CK IC6001 28PIN ADAC L IC6001 22PIN RSTO I IC6002/6003 6PIN ADAC DA IC6002/6003 5PIN ADAC CK IC6002/6003 4PIN ADAC L IC6002/6003 7PIN RSTO I
IC6001 5PIN AMCLK IC6001 3PIN ABCLK IC6001 1PIN ALRCLK IC6001 2PIN AOUT0 IC6002 2PIN AMCLK IC6002 14PIN ABCLK IC6002 16PIN ALRCLK IC6002 15PIN AOUT1 IC6003 2PIN AMCLK IC6003 14PIN ABCLK IC6003 16PIN ALRCLK IC6003 15PIN AOUT2
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Check the main unit.(IC601)Check the line between the pins of main unit connector CN801 and the pins of IC6001-3. CN801 3PIN CN801 4PIN CN801 5PIN CN801 6PIN CN801 3PIN CN801 4PIN CN801 5PIN CN801 7PIN CN801 3PIN CN801 4PIN CN801 5PIN CN801 8PIN Check or replace IC6001-3Check the main unit.(IC504)Check the line between the pins of main unit connector CN801 and the pins of IC6001-3.CN801 10PIN CN801 11PIN CN801 12PIN CN801 16PIN CN801 10PIN CN801 11PIN CN801 12PIN CN801 16PIN Check or replace IC6001-3.Check the peripheral circuit of AUDIO DAC (IC6001),AUDIO AMP.(IC6004) and AUDIO MUTE (Q6007-8) circuit. Check the peripheral circuit of AUDIO DAC (IC6002),AUDIO AMP.(IC6005) and AUDIO (Q6003-4) circuit. Check the peripheral circuit of AUDIO DAC (IC6003),AUDIO AMP.(IC6006) and AUDIO (Q6005-6) circuit.
NoNoNoNoNoNoNoNoNo
YesYesYesYesYes
FLOW CHART NO.22(DV-770X)Sound do not operate normally.Set the disc on the disc tray.Are the digital audio interface signals outputted to the pins of main unit connector CN801? CN801 3PIN AMCLK CN801 6PIN AOUT0 CN801 4PIN ABCLK CN801 7PIN AOUT1 CN801 5PIN ALRCLK CN801 8PIN AOUT2Are the digital audio interface signals inputted to the pins of IC6001-3? (1)FRONT SECTION (IC6001) IC6001 5PIN AMCLK IC6001 3PIN ABCKI IC6001 1PIN ALRCIN IC6001 2PIN AOUT0 (2)SURROUND SECTION (IC6002) IC6002 2PIN AMCLK IC6002 14PIN ABCLK IC6002 16PIN ALRCK IC6002 15PIN AOUT1 (3)CENTER/SUB WOOFER SECTION (IC6003) IC6003 2PIN AMCLK IC6003 14PIN ABCLK IC6003 16PIN ALRCK IC6003 15PIN AOUT2Are the system control interface signals outputted to the pins of main unit connector CN801? CN801 10PIN ADAC DA CN801 11PIN ADAC CK CN801 12PIN ADAC L CN801 16PIN RSTO IAre the system control interface signals inputted to the pins of IC6001-3? (1)FRONT SECTION (IC6001) IC6001 26PIN ADAC DA IC6001 27PIN ADAC CK IC6001 28PIN ADAC L IC6001 22PIN RSTO I (2)SURROUND and CENTER/SUB WOOFER SECTION(IC6002,IC6003) IC6002/6003 6PIN ADAC DA IC6002/6003 5PIN ADAC CK IC6002/6003 4PIN ADAC L IC6002/6003 7PIN RSTO IAre the audio signals output to the specific outputted terminals? (1)FRONT SECTION (IC6001) Are the audio signals outputted to the FRONT-L/R OUT terminal(J2002)? (2)SURROUND SECTION (IC6002) Are the audio signals outputted to the SURROUND-L/R OUT terminal(J6001)? (3)CENTER/SUB WOOFER SECTION (IC6003) Are the audio signals outputted to the CENTER/SUB WOOFER OUT terminal(J6001)?
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