26
26
DVD-2900
1.4. No sound, Noise generated
(1) CD
(2) SACD
O.K.
Check CD digital Audio data output.
• [CDLRCK], [CDBCLK], [CDDIN], [DOTX]
N.G.
Check soldering
• [IC502]: 58--62pin check.
• R641--R644
Check digital Audio data output.
• [IC101]: [DATA1], [LRCK], [BCK],
[DOUT0]
Check Audio select output.
• [DAD0],[DAWS], [DABCK], [MCLK]
Continues to the Check process of GU-3495 AUDIO P.W.B..
O.K.
O.K.
Check soldering
• [IC101]: 159--170pin check.
• R134--R142
Check soldering
• [IC204]--[IC207]
• [CX271]
• [IC106] [IC107]
N.G.
N.G.
O.K.
Check DSD data output.
• [IC401]: [DSARS], [DSALS], [DSASW],
[DSAC], [DSAR], [DSAL], [BCKAO]
N.G.
Check soldering
• [IC401]: 60--76pin check.
• R450--R456
Check audio select output.
• [DAD1], [DAD2], [DAD0], [DAWS],
[DABCK], [MCLK]
Continues to the Check process of GU-3495 AUDIO P.W.B..
O.K.
(1)Check soldering
• [IC204]-- [IC207]
•CX271
(2)Check [IC204,205]
•DSD/PCM ① pin ”H”
N.G.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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