ViewSonic VS12675, Service Manual

Page: 63 / 64

correctly referring to the user guide.
• Batteries could be weak or dead. Replace with new
batteries.
• Is a fluorescent light illuminated near the remote control
sensor?
• The path of the remote control beam may be blocked.
Make sure the path is clear and that the remote control is
aimed at the remote control sensor on the TV.
• Press the POWER button on the remote control to see if
you can turn on the TV.
• Press MENU button on the remote control to see if
there is a MENU shown on the screen.
• Press only one button at a time and it is the correct one
for the operation you want to perform.
Picture is cut off/with sidebar screen • Is the image positioned correctly?
• Are screen mode adjustments such as picture size set
correctly?
• Press WIDE button repeatedly on the remote control to
see if you can get the picture you prefer.
Power is cut off suddenly • Is the sleep timer set in advance?
• Is there no signal in PC mode or HDMI mode?
• The internal temperature of the unit has increased.
Remove any objects blocking the vent or clean as
necessary.
No CATV reception (or no reception
above CH13)
• Is the AIR/CABLE option set correctly?
Please set the AIR/CABLE option to CABLE referring to
the user guide.
• CATV is connected improperly or not connected; please
check all the CATV connections.
• The cable TV service is interrupted; please contact your
cable operator.
ViewSonic Corporation
Confidential - Do Not Copy
VT2645-M
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