Lenco LED-3213 - Manual (Page 16)

Main Menu Operation
SPDIF
Press  /  button to select SPDIF, then press  /  button to select Off / Auto / PCM.
Audio Description
Press  /  button to select Audio Description, then press Enter /  button to enter sub-menu.
Mode
Press  /  button to select Mode, then press  /  button to select On or Off .
When the mode is On, Volume can be adjust by users.
Sound Type
Press  /  button to select Sound Type, then press  /  button to select.
(Available Sound Type: Stereo, Dual I, Dual II, Mixed).
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LE D COLOR TV