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ViewSonic Corporation
Confidential - Do Not Copy
VG1921wm-2
41
6.
Black Screeqn and backlight turn on
Black Screen
Power Fail
Check Power Supply:
Pin 1, 2 of CN101
Check Power:
Pin 2 of U101 and Pin 2
of U102
Check Reset Waveform
(Pin 84 of U105)
Check Crystal Waveform
(Pin 96,97 of U105)
U101, U102 Fail
Check X101,
C153, C154
U105
(TSUM16AL) Fail
NG
OK
NG
OK
NG
OK
OK
NG
Check C144 and
R172
Содержание VG1921wm-2
Страница 5: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 2 4 Handling and Placing Methods...
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Страница 35: ...Disassembly Procedure ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 32...
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Страница 49: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 46 8 Exploded Diagram and Exploded Parts List...
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Страница 61: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 58 11 PCB Layout Diagrams...
Страница 62: ...ViewSonic Corporation Confidential Do Not Copy VG1921wm 2 59...