JVC PD-42X50BU, PD-42X50BJ, PD-42X50BS Instructions Manual page 53

Additional preparation
2 Press the 6 buttons and choose SIZE or AUDIO
• SIZE can only be chosen when the picture signal is 525p.
When setting SIZE:
This option adjusts the position when a 525p picture signal is being displayed on the screen.
There are two types of 525p picture signals: 640x480 and 720x480. If the displayed picture is
slightly shifted, the position can be adjusted by choosing either 1 or 2.
1 or 2 can be chosen by pressing the 5 buttons.
When setting AUDIO:
Choose DIGITAL when only connecting with the HDMI cable.
Chose ANALOGUE when a DVI device is connected to the HDMI terminal and the audio
output terminal of the DVI device is connected to the EXT-4 AUDIO terminal.
DIGITAL or ANALOGUE can be chosen by pressing the 5 buttons.
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