Acer AT4220, Service Manual

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14 Chapter 1
Teletext
11 Directional keys/OK
VOL (up/down)
CH (up/down) N/A
12 WIDE Press to toggle scaling mode between 4:3, 16:9, Panorama and
Letterbox 1, 2, 3 modes.
13 MPX Press to select the sound input, displayed in the top right-hand
corner (mono, stereo, bilingual).
14 VOL (+/-) Press to increase or decrease the volume.
15 CH (up/down) Press to sequentially select the TV channel.
# Item Description
1 Color buttons (R/G/Y/B) Operates corresponding button on the teletext page.
2 INDEX Press to go to the index page.
3 SIZE Press once to zoom teletext page to 2X. Press again to resume.
4 SUBTITLE Press to view subtitles on the screen.
5 SUBPAGE Press to access the teletext’s sub-pages directly.
6 HOLD Press to pause the current teletext page in multi-page viewing
mode.
7 REVEAL Press to reveal hidden teletext information.
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