ViewSonic PJL1035 Service Manual - Page 19

PJL1035-2, ViewSonic, Corporation

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UPC - 766907222111
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PJL1035-2 (No picture is displayed although there is the RGB signal input. Check at operating mode Is pic ure displayed either selected RGB1 or RGB2 ? NO YES Is the 1/2 selected signal NO changed at pin 0 of 1211 on the PWB ass'y drive YES PWB ass'y drive "L"=RGB1, "H"=RGB2 ("H"=5V) PWB ass'y input terminal RGB Are signal input at each pin of EDI1 on the PWB ass'y drive? YES NO 0 to 0: R signal ® to 0: G signal 0 to 0: B signal 6 : H sync : V sync Is he voltage at pin (goof EDIT on the PWB NO ss'y drive set to 'Fr whe RGB1or 2 is selected? "Fl = 5V YES PWB ass'y drive PWB ass'y signal PWB ass'y input terminal RGB Power unit (ci cuit) ViewSonic Corporation - 16 - Confidential - Do Not Copy

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PJL1035-2
(
No
picture
is
displayed
although
there
is
the
RGB
signal
input.
Check
at
operating
mode
Is
pic
ure
displayed
either
selected
RGB1
or
RGB2
?
NO
Are
signal
input
at
each
pin
of
EDI1
on
the
PWB
ass'y
drive?
YES
Is
the
1/2
selected
signal
changed
at
pin
0
of
1211
on
the
PWB
ass'y
drive
YES
NO
PWB
ass'y
drive
"L"=RGB1,
"H"=RGB2
("H"=5V)
PWB
ass'y
input
terminal
RGB
YES
NO
0
to
0:
R
signal
®
to
0:
G
signal
0
to
0:
B
signal
6
:
H
sync
:
V
sync
Is
he
voltage
at
pin
(goof
EDIT
on
the
PWB
ss'y
drive
set
to
'Fr
whe
RGB1or
2
is
selected?
YES
NO
"Fl
=
5V
PWB
ass'y
drive
PWB
ass'y
signal
PWB
ass'y
input
terminal
RGB
Power
unit
(ci
cuit)
ViewSonic
Corporation
—
16
—
Confidential
-
Do
Not
Copy