Basic operations

Adjusting the bass/treble sound

You can adjust each enhancement level from the front speakers within the range from –10 to +10.

On the remote control:

Press BASS +/– for bass sound. Press TREBLE +/– for treble sound.

NOTE

You can also make adjustments using the choice menu shown on the TV screen. (A pg. 49)

The adjustments on a source take effect for the other sources.

You can adjust bass/treble enhancement level only for front left/right channel. However, the supplied speakers cannot add the effective

change to the bass sound because of their cutoff frequency even if the bass sound adjustment is made. (A pg. 50)

To change the bass enhancement level more efficiently, adjust the output level of the subwoofer. (A “Adjusting the output level of the subwoofer”)

(When you change the front speakers to the larger ones and select “LARGE” for the front speakers in the SIZE sub-menu (A pg. 50), the effective adjustment of bass sound is also possible by pressing

BASS +/–.)

Changing the decode mode

When you play a disc (or software) encoded with Dolby Digital or DTS Digital Surround, the following symptoms may occur;

Sound does not come out at the beginning of playback.

Noise comes out while searching for or skipping chapters or

tracks.

In these cases, change the decode mode to “DOLBY D” (for Dolby Digital) or “DTS” (for DTS Digital Surround).

7When DVD or DBS is selected as the source

On the remote control:

Press DECODE to select the decode mode.

The current decode mode appears on the display window.

Example:When “AUTO/PCM” is selected.

Each time you press the button, the decode mode changes as follows;

]AUTO/PCM ] DOLBY D ] DTS ] (back to the beginning)

AUTO/PCM: Normally select this. The system automatically detects the incoming signals.

DOLBY D: Select this if the symptoms above occur when

playing a disc (or software) encoded with Dolby Digital.

• DTS: Select this if the symptoms above occur when playing a disc (or software) encoded with DTS Digital Surround.

NOTE

When “DOLBY D” or “DTS” is selected, if a signal encoded with another digital format comes in, you cannot listen to the sound. (The GDIGITAL or Cindicator flashes.)

Changing the source returns the decode mode to “AUTO/PCM” automatically.

Changing the scan mode

This system supports the progressive scan system (525p*) as well as the conventional interlaced scan system (525i*).

If your TV equipped with component jacks supports the progressive video input, you can enjoy a high quality picture by setting the progressive scan mode to active.

Refer also to the instruction manuals supplied with your TV.

If your TV equipped with component jacks does not support the progressive video input, do not change the scan mode to the progressive scan mode.

*525p and 525i indicate the number of scanning lines and scanning format of an image signal.

525p indicates 525 scanning lines with progressive format.

525i indicates 525 scanning lines with interlaced format.

7When DVD is selected as the source

On the remote control:

1 Press DVD.

2 Press and hold PROGRESSIVE for

3 seconds.

Each time you perform this operation, the scan mode changes as follows;

INTERLACE O PROGRESSIVE

INTERLACE: Select this if your TV equipped with component jacks supports the interlaced video input only.

PROGRESSIVE:Select this if your TV equipped with component jacks supports the progressive video input.

When “PROGRESSIVE” is selected, the PROGRESSIVE indicator lights.

NOTE

When “PAL” is selected on the VIDEO OUT SELECT switch (A pg. 8), the scan mode is fixed to “INTERLACE”. So the scan mode cannot be changed.

There are some progressive TVs and High-Definition TVs that are not fully compatible with this system, resulting in an unnatural picture when playing back a DVD in the progressive scan mode. In such a case, change the scan mode to “INTERLACE”.

To check the compatibility of your TV, contact your local JVC customer service center.

All JVC progressive TVs and High-Definition TVs are fully compatible with this system.

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JVC TH-A85, TH-A55 manual Adjusting the bass/treble sound, Changing the decode mode, Changing the scan mode