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No picture is displayed although
there is the RGB signal input.
Check at operating mode
Is
picture
displayed either
selected RGB1 or
RGB2 ?
NO
Are signal
input at each pin of
EDI1 on the PWB
ass'y drive?
2
to
NO
7
to
12
to
14
21
22
Is the
voltage at pin
of EDI1 on the PWB
33
ass'y drive set to "H" when
RGB1or 2 is
"H" = 5V
selected?
YES
PWB ass'y signal
YES
Is
the 1/2
selected signal
changed at pin
3
of I211
on the PWB ass'y
drive
YES
10
"L"=RGB1, "H"=RGB2
("H"=5V)
PWB ass'y input terminal RGB
YES
4
: R signal
9
: G signal
: B signal
: H sync
: V sync
NO
PWB ass'y drive
PWB ass'y input
terminal RGB
– 16 –
NO
PWB ass'y drive
Power unit
(circuit)
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