(4) SACD check process
Check communication.
[VSTEM]: communication
•
"L"--"H" level alternate?
O.K.
Check RF signal for Water Mark.
TP [WM]: about 1V
p-p.
•
O.K.
Check Bus Line.
Between IC401 and IC402(16MSDRAM)
"L"-"H" level alternate?
O.K.
END
Check soldering
N.G.
[IC404]
•
R437--R449.
•
N.G.
Check soldering
[IC403]: Circumference soldering check
•
Check soldering
N.G.
[IC401]: 141--162pin.
•
[IC402]
•
22
22
DVD-2200