VG800b, нет изображения с VGA, меню есть. (после скачка напряжения).
Помог пункт Initial в меню Factory Mode.
Для справки:
1.4.1 PRESS “2” AND “DOWN” KEY AND POWER ON TO SET THE MONITOR TO THE
BURN-IN MODE.
1.4.2 PRESS “VOL-” AND “1” KEY AND POWER ON TO SET THE MONITOR TO THE
FACTORY MODE.
1.4.3 TO ENSURE THE MONITOR IS UNDER FACTORY MODE, CHECK THE STATUS
IN THE OSD MENU SCREEN.
OTHERWISE, FOLLOW THE PROCEDURE
DESCRIBED IN SESSION 1.4.1 TO ENTER THE FACTORY MODE AGAIN
1.4.3 UNDER FACTORY MODE, PRESS “POWER” KEY. THE MONITOR WILL EXIT
FACTORY MODE AND ENTER NORMAL DISPLAY MODE.
Это для модели
ViewSonic VG800/b-2
Model No. VLCDS26105-3W
VLCDS26105-4W