This article explains how to set volume in iOS 7 and iOS 8 for music, ringer (iPhone only), alarm, and Siri on iPhone, iPad (Mini), and iPod Touch. There are three different volume settings on iOS devices which can make setting the correct volume a little tricky.
Standard-definition television can only display 480 lines. The Panasonic television followed NHK's standards -- an analog signal that packed more information than traditional television signals. By the 1980s, NHK had developed the technology to the point that it was time to shop around for other customers.
The first digital video recorders were designed to record analog television in NTSC, PAL or SECAM formats. To record an analog signal a few steps are required. In the case of a television signal, a television tuner must first demodulate the radio frequency signal to produce baseband video.