25
25
DVD-2900
(4) SACD check process
O.K.
N.G.
Check soldering
• [IC404]
• R437--R449.
Check RF signal for Water Mark.
• TP [WM]: about 1V
p-p.
Check soldering
• [IC401]: 141--162pin.
• [IC402]
END
N.G.
Check Bus Line.
Between IC401 and IC402(16MSDRAM)
“L”-”H” level alternate?
Check communication.
• [VSTEM]: communication
“L”--”H” level alternate?
Check soldering
• [IC403]: Circumference soldering check
N.G.
O.K.
O.K.
w
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w
.
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9
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9
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L
1
3
9
4
2
2
9
6
5
1
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2
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2
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5
1
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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