Hitachi 42HDF39, Руководство по обслуживанию

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22
z
No signal issue (Composite, SV, YCbCr, YPbPr)
Check if the signal source
is available and been well
connected?
No signal
No
Yes
Enable source and
connect the signal wire
properly.
Check if the
PCB-I/O
has
been well connected to
the
PCB-Main
?
Connect the
PCB-I/O
properly.
No
Yes
Take off the back cover.
Check if
Wire Ass’y 31P
has been well connected to
PCB-Main
?
No
Yes
Connect
Wire Ass’y 31P
properly to the
PCB-Main
.
Change the
PCB-I/O
then check the signal
No
Change
PCB-Main
board
Yes
Test
again