Acer AT3720A AT3720A Service Guide - Page 20
Colour buttons R/G/Y/B, Description
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12 WIDE 13 MPX 14 VOL (+/-) 15 CH (up/down) Teletext 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 increase or decrease the volume. Press to sequentially select the TV channel. 1 2 7 34 56 No. 1 2 3 4 5 6 7 Item Colour buttons (R/G/Y/B) INDEX SIZE SUBTITLE SUBPAGE HOLD REVEAL Description 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 subpages directly. Press to pause the current teletext page in multi-page viewing mode. Press to reveal hidden teletext information. 14 Chapter 1