Sharp DV-NC200SB, Руководство по обслуживанию

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1-11-5
H9941TS
FLOW CHART NO.5
Picture does not appear normally. [In the RGB/composite video output (JK101)]
Set the disc on the disc tray, and playback.
Are the video signals outputted to each pin of
CN1601 on the Main CBA?
Replace the DVD Main CBA or the DVD
Mechanism.
Check the line between each pin of CN1601 and
each pin of IC1403 and IC1401 on the Main CBA,
and service it if defective.
Is 5V voltage supplied to Pin(4) of IC1403?
Replace IC1403.
Check DVD-P-ON+5V line
and service it if defective.
Are the "L" pulse
inputted into Pin(2)
of CN1601?
CN1601 1PIN
→
IC1403 3PIN S-Y(I)
CN1601 10PIN
→
IC1403 1PIN S-C
CN1601 4PIN
→
IC1401 4PIN Pr/Cr
CN1601 8PIN
→
IC1401 14PIN S-Y(I/P)
CN1601 6PIN
→
IC1401 15PIN Pb/Cb
Are the video signals shown above inputted into
each pin of IC1403 and IC1401?
Are the video signals outputted to each pin
of IC1403 and IC1401?
Yes
Yes
No
No
No
No
No Yes
No
Is +5V voltage supplied
to Pin(16) of IC1401?
Is -5V voltage supplied
to Pin(7) of IC1401?
Yes
Check the line between
DVD-P-ON+5V and
AL-5V, and service it if
defective.
No
Replace IC1401.
Yes
Check the line between
Pin(2) of CN1601 and
Pins(9,10,11) of IC1401
and service it if defective.
Yes
Replace DVD
Main CBA.
No
CN1601 1PIN S-Y(I)
CN1601 10PIN S-C
CN1601 4PIN Pr/Cr
CN1601 8PIN S-Y(I/P)
CN1601 6PIN Pb/Cb
IC1403 3PIN S-Y(I)
IC1403 1PIN S-C
IC1401 4PIN Pr/Cr
IC1401 14PIN S-Y(I/P)
IC1401 15PIN Pb/Cb
IC1403 6PIN CVBS
IC1403 5PIN S-Y(I)
IC1403 7PIN S-C
IC1401 5PIN R
IC1401 12PIN G
IC1401 2PIN B
Are the "L" pulse inputted into Pins(9,10,11) of IC1401?
(continued to "A"
on next page)
Yes
FLOW CHART NO.4
The disc tray cannot be opened and closed. (It can not be done using the unit and the remote control unit.)
Replace the DVD Main CBA.
Original DVD Main CBA is poor.
Replace the DVD Mechanism.
No improvement can be found.
No
The [No Disc] indication.
Both picture and sound do not operate normally.