Sharp DT-400, Руководство по обслуживанию

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XV-Z2000
DT-400
Input the digital signal from INPUT5.
Select digital with the keys on the main body or the
remote control.
Check the Formatter unit.
Is the picture disturbed?
Is picture outputted?
Is the signal coming to pins (10)-
(77) of IC502?
YES NO
Check between the input terminals
and IC502.
NO
NO
YES
YES
Is the signal coming to pins (26)-
(54) and (66)-(94) of SC2001?
Check IC8001 and its peripheral
circuits.
NO
YES
Checking the digital input
End.
1
Input the analog RGB signal from INPUT5.
Select INPUT5 with the keys on the main body or the
remote control.
Check IC3102 and its peripheral
circuits.
Are pins (76), (77) and (78) of
IC3102 outputting and the signals
inputted to pins (73), (74) and (75)?
Is the picture disturbed?
Is picture outputted?
YES NO
NO
YES
NO
Is the picture signal coming to
pins (3), (4) and (5) of IC3102?
Check between the input terminals
and IC3102.
NO
YES
YES
Checking the analog RGB input
End.
1
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