Panasonic PV-DF274 Guida Al Funzionamento

Manufactured under license from Dolby 

Laboratories. “Dolby,” “Pro Logic,” and the 

double-D symbol are trademarks of Dolby 

Laboratories.

• When connecting an amplifier (with an optical 

digital input connector) which does not contain 

the Dolby Digital or dts decoder, be sure to 

select “PCM” at “Dolby Digital” and “PCM” at “dts” 

in the Settings for DVD Operation “Selecting 

AUDIO OUTPUT” (see pages 64-65). Otherwise, 

any attempt to play DVDs may cause such a high 

level of noise that it may be harmful to your ears 

and damage your speakers.

• Be sure to refer to pages 64-65 regarding output 

settings of Dolby Digital, dts, and PCM.

• CDs can be played as usual.

*

1

  The type of audio output from the connector can 

be selected by adjusting the Settings for DVD 

Operation. (See pages 64-65.)

*

2

  When "LPCM" is set to OFF in the DVD Main 

Menu, only 48 kHz sampling/16 bit is output. 

When set to ON, sampling of sound quality 

greater than 48 kHz/16 bit is reduced to 

48 kHz/16 bit. (See pages 64-65.)

• Dolby Digital is a digital sound compression 

technique developed by the Dolby Laboratories 

Licensing Corporation. Supporting 5.1-channel 

surround sound, as well as stereo (2-channel) 

sound, this technique enables a large quantity of 

sound data to be efficiently recorded on a disc.

• Linear PCM is a signal recording format used in 

CDs. While CDs are recorded in 44.1 kHz/16 bit, 

DVDs are recorded in 48 kHz/16 bit up to 

96 kHz/24 bit.

• If you have a Dolby Pro Logic Surround decoder, 

you will obtain the full benefit of Pro Logic from 

the same DVD movies that provide full 5.1 

channel Dolby Digital soundtracks, as well as 

from titles with the Dolby Surround mark. For 

information on Panasonic or Technics Dolby Pro 

Logic Surround Sound Decoders please contact 

your local dealer.

  Turn down the volume, then turn this unit, as 

well as other equipment to be connected, off 

before pro ceed ing with connection.

  Do not block ventilation holes of any equipment 

and arrange it so that air can circulate freely.

• Some dts decoders which do not support 

DVD-dts Interface may not work properly with 

the unit.

Dolby Digital

Dolby Digital bitstream
(1-5.1 ch) or PCM (48 kHz 
sampling/16 bit only)*

1 

Linear PCM
(48/96 kHz
16/20/24 bit)

Linear PCM (2ch)
(48 kHz sampling/16 bit
only)*

2

dts

Bitstream or PCM (48 kHz 
sampling/16 bit only)*

1

Dolby Digital

Dolby Digital bitstream
(1-5.1 ch) or PCM (48 kHz 
sampling/16 bit only)*

1 

Linear PCM
(48 kHz
16 bit)

Linear PCM (2ch)

Linear PCM

Linear PCM
(44.1 kHz sampling)

Manufactured under license from Digital 

Theater Systems, Inc. US Pat. No’s. 

5,451,942, 5,956,674, 5,974,380, 

5,978,762, 6,487,535 and other U.S. and 

world-wide patents issued and pending. 

“DTS” and “DTS 2.0 + Digital Out” are 

trademarks of Digital Theater Systems, 

Inc. Copyright 1996, 2003 Digital Theater 

Systems, Inc. All Rights Reserved.