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1. POWER: To switch ON/OFF the receiver power supply.
2. MUTE: To mute or restore the sound
3. RED, GREEN, YELLOW, BULE KEYS: Multi-function keys in menu mode.
4. SUB-T: To show subtitle on the channel which has subtitle information.
5. ASPECT:To switch the video output aspect ratio to 4:3 or 16:9.
6. FB/FF: To play back or forward faster.
7. PREV: To change into the previous play.
8. NEXT: To change into the next play.
9. PLAY/PAUSE: to pause and play the file when you press play / pause key.
10. STOP: To stop the current play or to stop the current record.
11. REC: To record of the channel.
12. USB: The shortcut key to the USB menu.
13. FIND: Enter into a menu to search the channel you want.
14. ZOOM: To magnify a certain area on the images
15. TXT: To open teletext page on the channel which has teletext information.
16. PIP; this is the fuction about picture in picture.
17. MENU: Display the main menu or return to the previous one.
18. INFO: The shortcut key to the information menu.
19. OK: To carry out the selection and enter into chosen menu.
20. CH Up/Dn: Turn to the next or previous channel and to move the highlight bar for selecting options
to upward or downward on the menu.
21. VOL +/-: To adjust the sound volume up or down and to move the highlight bar for selecting options
to right or left on the menu.
22. PAGE +/-: To move up the cursor to the next or previous page in the menu or channel list.
23. FAV: The shortcut key to favorite menu.
24. EXIT: To exit from the menu or pop-up window or cancel the present running functions.
25. EPG: The shortcut key to the EPG menu.
26. AUDIO : Selects the audio mode among Left / Right / Stereo / Mono
27. NUMBER KEYPAD: To select TV/Radio channel and enter to programming parameters by the
numeric keys and to input the character by the alphabetical keys.
28. RECALL: To return to the previously viewed channel.
29. TV/RADIO: To switch between TV and RADIO.