Why does my Yamaha receiver says decoder off?

The DECODER OFF message is purely an information message. It can mean one of two things – a two channel source is input or there is no input. In either case the receiver would not need to turn on a decoder to play sound.

How do I turn off PCM?

Press the “PCM” button on the Sony remote control to switch off PCM mode. This will display on the LCD screen on the front of the receiver.

What is surround decoder Yamaha?

Dolby Surround decoder. Expands the sound using a method optimized for the layout of the installed speakers. It produces the extended surround sound optimized for your speaker system. A real acoustic space (including overhead) will be created especially when object-based audio (such as Dolby Atmos content) is played.

What is the straight button on a Yamaha receiver?

When STRAIGHT is pressed and the straight decode mode is enabled, the unit produces stereo sound from the front speakers for 2-channel sources such as CDs, and produces unprocessed multichannel sounds for multichannel sources. Each time you press the key, the straight decode mode is enabled or disabled.

Why is my receiver showing PCM?

The PCM light on the front of the receiver lights up when the Yamaha unit is receiving a PCM signal from a source such as a DVD player. Standard PCM signals are 2-channel digital signals.

What is PCM mode?

PCM: This stands for “pulse-code modulation.” Use this setting if the external device you’ve connected to the HDMI port has already processed the sound, and you just want it to come out of your TV’s speakers. Note: This changes the signal to 2.0 PCM as it passes through the TV.

What does the decoder do?

A decoder is a device that generates the original signal as output from the coded input signal and converts n lines of input into 2n lines of output. An AND gate can be used as the basic decoding element because it produces a high output only when all inputs are high.