DirecTV DVR40 用户手册

C h a p t e r   1

between viewing DIRECTV channels, viewing video from your DVD player, or running 
your game system by changing the input source.



: Dolby

®

 Digital audio is recorded on six separate channels, each of 

which can be heard on one of six separate speakers. To use Dolby

®

 Digital audio, you 

must use an optical audio cable to connect your DIRECTV DVR to an A/V receiver 
capable of supporting Dolby

®

 Digital audio. Not all A/V receivers with optical audio 

inputs are capable of receiving Dolby

®

 Digital audio. You must also set your DVR to 

record using Dolby

®

 Digital audio. For more information, see page 96.



: Dolby

®

 Surround Sound audio is recorded on two channels, 

which can be heard on two or more (usually five) speakers. To use Dolby

®

 Surround 

Sound audio, you must have an A/V receiver capable of supporting Dolby

®

 Surround 

Sound audio connected to your DVR using either L/R Audio cables or an optical audio 
cable.

: Digital PBX phone systems allow many phones to share a 

single telephone number and are usually used in hotels and office buildings. If you are 
installing the DVR in your home, it is very unlikely that you are using a digital PBX phone 
system. Do not connect your DVR to a digital PBX phone system. Doing so may 
permanently damage your DVR’s modem and will void your warranty.

: Surge protectors are devices that protect electronic equipment from 

power fluctuations. Like all electronics equipment, your DVR can be damaged by 
fluctuations in your line voltage. Purchasing a surge protector is highly recommended. If 
you purchase a surge protector that allows you to plug in both your DVR’s power and 
your telephone cord, you may prevent damage to the parts of your DVR that are connected 
to your phone line as well! Surge protectors can be purchased at hardware, electronics, or 
general merchandise stores.