![background image](http://html1.mh-extra.com/html/viewsonic/q9-1/q9-1_service-manual_1020582037.webp)
6. TROUBLE SHOOTING FLOW CHART
Does
picture
display?
YES
NO
Back-light
On or off
Check
Power
LED
A dark
Picture or a
Picture full
Of colorfully
vertical lines
Check
Display
resolution
Check inverter
Check I/F board JP1
Check I/F board JP9
Check panel connector
Check I/F board
OSD no respones
too dim
The brightness is
different between
upper side and
downer side
partly picture
without color
Vertical,Horizontal
none
synchronousness
a few of colorfully
vertical lines
even(or odd)
vertical lines is dark
Check SW board
SW1 ~ SW4
Check OSD
adjustment
Check inverter of power board
Check backlight
Check I/F board
Check LCD panel
Check LCD panel
Check I/F board
(DPWBN5625T89-H-)
Check SW board JP1
Check inverter
Check I/F board
OFF
ON
ON
Hsync
Vsync
or DE error
Flash
RGB
Signal
error
H,Vsync
error
34
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
Q9-1_Q9b-1
Содержание Q9-1
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Страница 20: ...3 Special application 17 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
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Страница 52: ...11 PCB Layout Diagrams IF board 49 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
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Страница 60: ...Key board SOLDER 57 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Страница 61: ...DRILL 58 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Страница 62: ...COMP SILK 59 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Страница 63: ...Top 60 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Страница 64: ...SOLDERMASK 61 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Страница 65: ...Top Mask 62 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...