Hitachi C28W40TN, Service Manual

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features - wide screen
25
14:9 format
16:9 format
auto format
Auto mode automatically detects various screen formats
that are transmitted in either conventional (4:3) or wide screen
(16:9 or 14:9) format. After detecting which signal is being
transmitted the TV will automatically switch to the correct
screen ratio. In example 1 (right) a 4:3 conventional picture
format is shown SEE 4:3 format below.
Hitachi recommend AUTO is selected for the majority of
analogue TV viewing.
Note: The auto format feature for setting the screen size does
not work on all digital signals. If a picture appears ‘squashed’
on the screen press the 16:9 button on your handset until
the desired screen size setting is found.
...notes on wide screen features
Various broadcast stations now transmit movies and programs in true wide screen format.
Built into your TV is software that detects these signals and automatically switches your TV to the
correct format. However, some broadcasters do not transmit this automatic sensing signal, and so
your TV will not recognise which format is being transmitted. This situation can be overcome by simply
pressing the key on your handset.
The picture (right) illustrates a true 16:9 wide screen
picture format. This type of picture fills the entire TV
screen.
The 16:9 mode can also be manually selected if desired by
pressing the button on your handset
The 14:9 format (right) is the medium between the 4:3
and 16:9 ratio signals. When this mode is selected thin
black bars appear to the sides of the screen.
4:3 format
The conventional picture format for most broadcasts is the
4:3 ratio. Black bars are seen at the sides of the screen
and thie picture shapes are consistent with
non-widescreen TV’s (see right).