Altec Lansing PT8051 manual Center Delay Setting, Rear Delay Setting, Test Tone Setting

NTSC: Select this if the connected TV has the NTSC color system. It will change the video signal of a PAL disc and output it to NTSC format.

PAL: Select this setting if the connected TV has the PAL color system. It will change the video signal of an NTSC disc and output it to PAL format.

SETUP MENU
OSD LANG	AUTO
TV TYPE	NTSC
CENTER DELAY	PAL
REAR DELAY
TEST TONE
SCREEN SAVER
EQ
DEFAULTS
EXIT SETUP

Center Delay Setting

Used to set the delay time that is used for the CENTER channel. This setting is adjustable from 0 to 5 mS (milliseconds) in one millisecond increments. This setting is useful if your PT8051 main unit cannot be positioned near the TV. As a general rule one foot (30cm) is equal to a delay of approximately 1mS. Therefore if your PT8051 main unit was one foot from the screen you would set the CENTER delay for 1mS. It can also be adjusted so that the sound coming from the PT8051 is synchronized with the video image. The default setting is CENTER DELAY TURNED OFF.

CENTER DELAY	CENTER DELAY SET TO 5MS
REAR DELAY	CENTER DELAY SET TO 4MS
	CENTER DELAY SET TO 3MS
TEST TONE
	CENTER DELAY SET TO 2MS
SCREEN SAVER	CENTER DELAY SET TO 1MS
EQ	CENTER DELAY OFF
DEFAULTS
EXIT SETUP
SET CENTER DELAY

Rear Delay Setting

Used to set the delay time that is used for the REAR (surround) channel. This setting is adjustable from 0 to 15mS (milliseconds) in three millisecond increments. This setting is used to accurately reproduce the surround information that is encoded on certain DVDs as the producer intended by allowing you to tailor the sound to your listening room size. In this case you would set the delay as follows;

The delay in milliseconds for the rear (surround) speaker setting is equal to the number of feet closer that speaker is to your listening position than the main unit.

For an example, let’s assume the main unit is 15 ft away from the main listening position and the rear (surround) unit is 5 feet away.

Surround’s Delay = 15ft – 5ft = 10ft = 10mS of delay

In this case you would select 9 mS from the menu as it is closest to 10 mS.

The idea is to have the sound from the main and rear units reach your ears at the same time, in relation to the signal being sent to those speakers. For the speakers that are close to you, a delay has to be added so that their sound reaches your ears at the same time as the speakers

that are farther away from you, with respect to the music signal that is sent to all the speakers at the same instant. The default setting is REAR DELAY TURNED OFF.

	English
CENTER DELAY
REAR DELAY	SURROUND DELAY SET TO 15MS
TEST TONE	SURROUND DELAY SET TO 12MS
	SURROUND DELAY SET TO 9MS
SCREEN SAVER
	SURROUND DELAY SET TO 6MS
EQ	SURROUND DELAY SET TO 3MS
DEFAULTS	SURROUND DELAY TURNED OFF
EXIT SETUP
SET SURROUND DELAY

Test Tone Setting

When set to the ON position, the system will test the speaker output by using an internally generated test tone. The test signal is output sequentially through various channels. The default setting is OFF.

OSD LANG

CENTER DELAY

REAR DELAY

SCREEN SAVER

EQ

DEFAULTS

EXIT SETUP

Screen Saver Setting

When set to ON the PT8051 will automatically enter the screen saver mode when no changes have been made after five minutes. This is useful for preventing image burn from occurring that can damage certain plasma TVs. The default setting is ON.

OSD LANG

CENTER DELAY

REAR DELAY

TEST TONE

EQ

DEFAULTS

EXIT SETUP

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