Sony SLV-SE230G/I Operating Instructions Manual page 26

If the picture is not clear
If the picture is not clear, you may use the Manual Fine Tuning (MFT)
function. After step 4, press M/m to select MFT. Press </, to get a clear
picture, then press MENU to exit the menu.
Tip
• The VCR must receive channel information for station names to appear
automatically.
Note
• When adjusting MFT, the menu may become difficult to read due to interference
from the picture being received.
26 Presetting channels