6.5 Backlight can’t be turned on
No raster?
Yes
No
Check power
No
Check I/F
Yes
R503 open
No
Yes
Is Ok IC501?
Yes
U501 fail
No
IC501 fail
T501 fail
No
Connecting the
output connector
No
Yes
Is there 14Vdc
voltage on pin9
of IC501?
Yes
Is there high-level voltage
on pin8 of IC501?
Is Ok R503?
Are connected rightly
CN501, CN502?
Is there instantaneously pulse
wave on pin14, pin11 of IC501
at the moment of restart?
Is T501 ok?
LED Blue?
Backlight can’t
be turned on.
Yes
Yes
Yes
No
Check feedback circuit
Yes
END
ViewSonic Corporation
VX2433wm-1
VX2433wm-CN
CONFIDENTIAL – DO NOT COPY
79
Summary of Contents for VX2433wm-1
Page 6: ...ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 3...
Page 40: ...BACKCOVER ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 37...
Page 41: ...PANEL BEZEL ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 38...
Page 42: ...KEYPAD CHASIS ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 39...
Page 44: ...IF BOARD ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 41...
Page 86: ...7 Block Diagram ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 83...
Page 88: ...VGA INPUT ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 85...
Page 89: ...DVI INPUT ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 86...
Page 90: ...HDMI INPUT ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 87...
Page 91: ...SCALER ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 88...
Page 92: ...AUDIO ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 89...
Page 93: ...ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 90...
Page 94: ...POWER SUPPLY ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 91...
Page 95: ...INVERTER SUPPLY ViewSonic Corporation VX2433wm 1 VX2433wm CN CONFIDENTIAL DO NOT COPY 92...