JDTV-750 User Manual, page 10
If pixilation of picture occurs, you may try the more powerful external telescopic antenna
(included).
Unscrew the detachable rotary telescopic antenna and screw the F connector of the external
telescopic antenna into the Antenna Jack of the TV set. Then try placing the external
antenna at different places, e.g. a window, until a stable picture can be obtained. The
external antenna has a magnetic base for you to attach securely on a metal iron surface
easily.
Storing the Detachable Telescopic Antenna
GETTING STARTED
When first powered on and there
is no channel information stored in
the memory, the TV screen will
show a dialog for auto scan setup,
press OK button to start auto scan
mode.
Select Air or Cable source.
Cable system options: AUTO,
STD, IRC, HRC
FUNCTION MENUS AND SETTINGS
There are 5 different menus: Picture, Audio, Time, Setup and Channel.
Press MENU button to bring up the main menu.
Press VOL+ (f) of TV or h of Remote or VOL- (e) of TV or g of Remote to select a
menu.
Press CH- (d) of TV or j of Remote to select the first menu item and use VOL+ (f) of
TV or h of Remote or VOL- (e) of TV or g of Remote to adjust.