ViewSonic PJ1000 Service Manual - Page 16
VIDEO, ®+12V, 13.5V, 15.5v, ViewSonic, Corporation, PJ1000
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( Picture is not displayed (both ROB and VIDEO input) Are voltage input at p ns Oa. 1.C),® of EPOW on the NO PWB ass y signal? YES ®+12V 3 +17V ® +13.5V ® +6.3V O -BV Is a voltage input at pin S of PSD4 on the PWB ass'y drive? YES S +5.3V A e voltage input at pins(2), @ of NO PSD5 on the PWB ass'y drive? YES +15.5v ® +12V Power unit (circuit) PWB ass'y signal PWB ass'y signal A e voltage input at pins a of NO PSD6 on the PWB ass'y drive? YES C)+5V -5V PWB ass'y signal ViewSonic Corporation - 13 - Confidential - Do Not Copy PJ1000
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(
Picture
is
not
displayed
(both
ROB
and
VIDEO
input)
Are
voltage
input
at
p
ns
Oa.
1.C),®
of
EPOW
on
the
PWB
ass
y
signal?
NO
YES
®+12V
3
+17V
®
+13.5V
®
+6.3V
O
-BV
Is
a
voltage
input
at
pin
S
of
PSD4
on
the
PWB
ass'y
drive?
Power
unit
(circuit)
YES
S
+5.3V
A
e
voltage
input
at
pins(2),
@
of
PSD5
on
the
PWB
ass'y
drive?
NO
PWB
ass'y
signal
YES
+15.5v
®
+12V
A
e
voltage
input
at
pins
a
of
PSD6
on
the
PWB
ass'y
drive?
YES
C)+5V
-5V
NO
PWB
ass'y
signal
PWB
ass'y
signal
ViewSonic
Corporation
-
13
-
Confidential
-
Do
Not
Copy
PJ1000