Remote control buttons and functions
MUTING button
You can turn the sound off instantly.
Press this button.
To turn the sound on, press this button again.
PICTURE BOOSTER button
<AV-21YX11 only>
When the picture is unclear because the reception level of the TV signal is low, activating the Picture Booster improves the picture clarity in some situations. Repeatedly press the PICTURE BOOSTER button to select the desired mode.
HIGH:
The Picture Booster is functioning at maximum.
LOW:
The Picture Booster is functioning at minimum.
OFF:
The Picture Booster is off.
•If the picture becomes abnormal when you set the Picture Booster to HIGH, then set it to
LOW or OFF.
COLOUR SYSTEM button
If the picture is not clear or no colour appears, change the current colour system to another colour system.
Press this button to select the colour system.
AUTO 
PAL 
SECAM
NTSC4.43 
NTSC3.58 
AUTO:
Automatic colour system selection.
•For the colour systems in each country or region, see the table “Broadcasting systems” on page 27.
•If the picture is not normal in the AUTO mode, change the AUTO mode to another colour system.
SOUND SYSTEM button
If the sound is not clear even when the picture appears normal, change the current sound system to another sound system.
Press this button to select the sound system.
B/G 
I 
D/K 
M 
•For the sound systems in each country or region, see the table “Broadcasting systems” on page 27.
•You cannot select any sound system when in a VIDEO mode.
CINEMA SURROUND button
You can enjoy an enhanced sound for a wider audience by using CINEMA SURROUND function.
Press this button to select one of the CINEMA SURROUND mode.
HIGH/LOW:
When you listen to the stereo sound, please select HIGH mode or LOW mode. You can enjoy the sound for a wider audience similar to the experience at the theatre.
•In case that you setting up the CINEMA SURROUND function to HIGH mode, there may be slight volume distortion. In case that occurs, please switch the HIGH mode to LOW mode, the effect of CINEMA SURROUND functions will be less noticeable, however, the volume distortion will be corrected.
MONO SURROUND:
Select the MONO SURROUND mode, when you listen to the mono sound. You can enjoy the sound for a wider audience similar to stereo sound.
OFF:
The CINEMA SURROUND function switches off.
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