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ViewSonic Corporation
Confidential - Do Not Copy
VA702-1_VA702b-1
41
8.
Bad Screen
Bad Screen
Workmanship
LVDS Cable NG
1.Check
X101,C154,C155
2.Check
X102,C126,C168
Check ALE/RDZ/
WRZ/AD0/AD1/AD2/
AD3/HWRESET
Check the pins of
U104 and U105
LVDS Cable Reinsert
Change LVDS Cable
Check Crystal:pin20,21 of
U105 and pin 33,34 of U104
Check the communication of
U104 and U105
OK
NG
OK
NG
NG
OK
NG
OK
Содержание VA702-1
Страница 42: ...ViewSonic Corporation Confidential Do Not Copy VA702 1_VA702b 1 39 6 Black Screen and backlight turn on...
Страница 60: ...11 PCB Layout Diagrams Main board Top layout ViewSonic Corporation Confidential Do Not Copy VA702 1_VA702b 1 57...
Страница 61: ...Main board bottom Layout ViewSonic Corporation Confidential Do Not Copy VA702 1_VA702b 1 58...
Страница 62: ...ViewSonic Corporation Confidential Do Not Copy VA702 1_VA702b 1 59 POWER board...
Страница 63: ...ViewSonic Corporation Confidential Do Not Copy VA702 1_VA702b 1 60...