Hitachi DV-PF6E, Service Manual

Page: 36 / 123

3-9
FLOW CHART NO.9 [ FOR MODELS DV-PF7E, DV-PF7E(UK) ]
Picture does not appear normally. [In the component video output (JK1403)]
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
CN1601 10PIN
→
IC1403 1PIN S-C
CN1601 4PIN
→
IC1401 4PIN Cr/Pr
CN1601 8PIN
→
IC1401 14PIN Y(I/P)
CN1601 6PIN
→
IC1401 15PIN Cb/Pb
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
CN1601 10PIN S-C
CN1601 4PIN Cr/Pr
CN1601 8PIN Y(I/P)
CN1601 6PIN Cb/Pb
IC1403 3PIN S-Y
IC1403 1PIN S-C
IC1401 4PIN Cr/Pr
IC1401 14PIN Y(I/P)
IC1401 15PIN Cb/Pb
IC1403 6PIN CVBS
IC1403 5PIN S-Y
IC1403 7PIN S-C
IC1401 3PIN Cr/Pr
IC1401 13PIN Y(I/P)
IC1401 1PIN Cb/Pb
Are the "H" pulse inputted into Pins(9,10,11) of IC1401?
(continued to "B" on next page)