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Acer AT4220A Service Manual Page 18

At4220a service guide.
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9
MENU
10
TTX/MIX (TELETEXT/
MIX)
11
Directional keys/OK
VOL (up/down)
CH (up/down)
12
WIDE
13
MPX
14
e (Empowering
Technology)
15
VOL (+/-)
16
CH (up/down)
17
PIP/PBP/POP
18
SWAP
18
ACTIVE
20
POSITION
21
SIZE/MODE
Teletext
#
Item
1
Color buttons (R/G/Y/B)
2
INDEX
3
SIZE
4
SUBTITLE
5
SUBPAGE
6
HOLD
7
REVEAL
12
Press to open or close the Menu.
Press to return to the previous channel.
N/A
Press to toggle scaling mode between 4:3, 16:9, Panorama and
Letterbox 1, 2, 3 modes.
Press to select the sound input, displayed in the top right-hand
corner (mono, stereo, bilingual).
Press to activate Acer Empowering Technology.
Press to increase or decrease the volume.
Press to sequentially select the TV channel.
Switch between PIP/PBP/POP modes.
For PIP/PBP mode: Toggle between the primary and sub-screens.
Toggle between primary and sub-screens.
When in PIP mode: Change sub-screen position.
When in PIP mode: Change sub-screen size. When in POP mode:
Switch POP mode from 1+5 to 1+12.
1
2
3
4
Operates corresponding button on the teletext page.
Press to go to the index page.
Press once to zoom teletext page to 2X. Press again to resume.
Press to view subtitles on the screen.
Press to access the teletext's sub-pages directly.
Press to pause the current teletext page in multi-page viewing
mode.
Press to reveal hidden teletext information.
7
5
6
Description
Chapter 1

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