JVC TH-A25 manual Creating Realistic Sound Fields, Basic sound adjustment procedure

Creating Realistic Sound Fields

■Basic sound adjustment procedure

Ex. : To adjust the front speaker balance

From the remote control ONLY:

1Play the disc you want to use for the sound adjustment.

2 Press SOUND repeatedly until “FRONT	SOUND
BALANCE” and the adjustment bar
appear on the TV screen.

Each time you press the button, the adjustment indication on the TV screen changes as follows:

FRONT BALANCE	L	R
	L	R
REAR BALANCE

CEN LEVEL 0dB

REAR LEVEL 0dB

S/W (subwoofer) LEVEL 0dB

BASS 00dB

TREBLE 00dB

C-DLY *1*2

R-DLY *1*3

*1: No adjustment bar appears on the TV screen when you adjust the delay time. Refer to the display on the center unit to adjust the delay time.

*2: “C-DLY” is adjustable only when the digital multichannel surround (Dolby Digital or DTS Digital Surround) is activated.

*3: “R-DLY” is adjustable only when the digital multichannel surround or one of Dolby Pro Logic II modes is activated.

There is a time limit in doing the following steps. If the setting is canceled before you finish, press SOUND and start from step 2 again.

3 Press 3 or 2 to adjust the output balance (–00 to –06, OFF).

•You can also adjust the sound setting referring to the display on the center unit. Refer to the display indication when you want to adjust the sound using sources other than discs.

Sound adjustment indication on the display

Ex.: Front balance

L C R

SW

LS RS

Left front level Right front level

Ex.: Center level

L C R

SW

LS RS

Center output level

Ex.: Rear delay time

L C R

SW

LS RS

Rear delay time

4Repeat steps 2 and 3 to adjust the other items.

•On delay time adjustment

You can adjust and store the delay time setting for each surround mode. Select the surround mode you want to adjust before starting delay time adjustment.

•Adjustable range

Digital Multichannel		C-DLY: 0 msec to 5 msec
Surround:		R-DLY: 0 msec to 15 msec
Dolby Pro Logic II modes		(R-DLY only)
	PLII MUSIC:	0 msec to 15 msec
	PLII MOVIE:	10 msec to 25 msec
	PLII MATRIX:	0 msec to 15 msec
	PRO LOGIC:	10 msec to 25 msec

1 msec increase (or decrease) in delay time corresponds to 30 cm increase (or decrease) in distance.

	Center speaker
Left front	Right front
speaker	speaker
	Subwoofer
	3.0 m
	2.7 m
	2.4 m

3: Decreases the left speaker output, or

ENTER

2.1 m

restores the right speaker output.

2: Decreases the right speaker output, or restores the left speaker output.

Left rear	Right rear
speaker	speaker

Ex. : In this case, set R-DLY to “3MS”

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